Uploaded_file Malware CobaltStrike Analysis

Updated 2 years ago

Checked by Malware Check

uploaded_file

Technical Analysis

File Name	uploaded_file
File Type	PE32+ executable (DLL) (GUI) x86-64, for MS Windows
Scanner Version	1.0.138.174
Database Version	2023-09-10 23:01:43 UTC

⚠

Malware.Win64.CobaltStrike.cld

Malware family: CobaltStrike

Cobalt Strike is a penetration testing framework that deploys the Beacon agent for system control. While designed for legitimate security testing, it provides command execution, keylogging, file transfer, privilege escalation, and lateral movement capabilities. The tool operates in-memory to avoid disk-based detection and supports multiple communication protocols.

N/A

Detection Rate

310,784

File Size (bytes)

2023-09-10

Analysis Date

Scan Another File

File Identification

Hash Type	Value	Action
MD5	cfab3bce973877f871fab477ff738d16
SHA1	a2da7b8735e580824355fcee61705edcfc5b7f65
SHA256	c72d1b903c65ebef5b20ee6e70eb3a46c49c72c74232fc66a62add763b061245
SHA512	ff3064bd5bb52d079c75d9d90944360eb11bbd035093eee268dd9df4ffc508df2c0c99daca612a511b69ed1aeb5498c773d749d80069064abc9bbc0ec4cddfde
ImpHash	9ac54dbf0e879da3dc3691bd7af5d6bf

PE Analysis

Basic Information

▼

Image Base	`0x180000000`
Entry Point	`0x180001490`
Compilation Time	2023-09-10 19:22:57
Checksum	0x00000000 (Actual: 0x0005b3de)
OS Version	6.0
PEiD Signatures	`PE32+ executable (DLL) (GUI) x86-64, for MS Windows`
PDB Path	`D:\QUANNVTOOLS\Dev\wevtapi\x64\Release\wevtapi.pdb`
Digital Signature	The PE file does not contain a certificate table.
Imports	3 libraries KERNEL32, VCRUNTIME140, api-ms-win-crt-runtime-l1-1-0
Exports	45 functions
Resources	1 Resources
Sections	6 Sections

PE Sections

▼

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Characteristics	MD5
`.text`	`0x00001000`	4,120 bytes	4,608 bytes	5.84 (Normal)	`IMAGE_SCN_CNT_CODE\|IMAGE_SCN_MEM_EXECUTE\|IMAGE_SCN_MEM_READ`	`9065A606C9F523B0885B619BAE8D4A3D`
`.rdata`	`0x00003000`	302,854 bytes	303,104 bytes	7.77 (Packed/Encrypted)	`IMAGE_SCN_CNT_INITIALIZED_DATA\|IMAGE_SCN_MEM_READ`	`CE64DD2233B56A2E4353FBECFEF62852`
`.data`	`0x0004d000`	1,600 bytes	512 bytes	0.43 (Normal)	`IMAGE_SCN_CNT_INITIALIZED_DATA\|IMAGE_SCN_MEM_READ\|IMAGE_SCN_MEM_WRITE`	`F7BE62718ED97C82BB8FF763A650EE8C`
`.pdata`	`0x0004e000`	480 bytes	512 bytes	3.86 (Normal)	`IMAGE_SCN_CNT_INITIALIZED_DATA\|IMAGE_SCN_MEM_READ`	`4E59CB6F97279A69DF5505CC6AD29CD4`
`.rsrc`	`0x0004f000`	248 bytes	512 bytes	2.53 (Normal)	`IMAGE_SCN_CNT_INITIALIZED_DATA\|IMAGE_SCN_MEM_READ`	`28ABA3E9D8E1D7C770A208195A6AFE9F`
`.reloc`	`0x00050000`	52 bytes	512 bytes	0.66 (Normal)	`IMAGE_SCN_CNT_INITIALIZED_DATA\|IMAGE_SCN_MEM_DISCARDABLE\|IMAGE_SCN_MEM_READ`	`09AF96EF4AEE3574B706705789A68B1C`

Entropy Analysis Alert

1 section(s) with high entropy (≥7.5) detected - possible packing/encryption

Resource Analysis

▼

Total Resources: 1 (145 bytes)

Resource Type	Count	Total Size	Percentage
RT_MANIFEST	1	145 bytes	100%

Certificate Chain Analysis

▼

No Digital Signatures

This file is not digitally signed.

Security Implications:

Cannot verify the publisher's identity
Increased security risk when running this file
May trigger security warnings on some systems

⚠ This file either lacks a digital signature or the certificate chain could not be verified
Exercise caution when executing unsigned files from unknown sources

Certificate Verification Status

The PE file does not contain a certificate table.

Recommendation: Verify the file source and ensure it comes from a trusted publisher.

Malware.Win64.CobaltStrike.cld Removal

Gridinsoft has the capability to identify and eliminate Malware.Win64.CobaltStrike.cld without requiring further user intervention.

Download Anti-Malware

Removal Instructions

Follow these steps to completely remove the threat from your system

1
Get Gridinsoft Anti-Malware — it's a quick 2 MB download that won't slow down your PC.
2
Run the installer gsam-en-install.exe. The setup takes about 2 minutes and doesn't require a restart.
3
The app launches right after installation. You'll see the main dashboard with the scan button front and center.
4
Hit "Standard Scan" — this checks all the spots where malware typically hides: temp folders, browser data, startup programs, and system directories.
5
Once the scan finds this threat, click "Clean Now". The removal usually happens instantly, though some stubborn infections may need a reboot.
6
If you see a restart prompt, go ahead and reboot. This clears any malware that was running in memory and ensures your system starts fresh.

Important: Before You Start

Quick tip: unplug from the internet before scanning. Some malware phones home for instructions or downloads extra payloads when it senses trouble. If the infection is severe, boot into Safe Mode first — it limits what can run and makes cleanup easier.

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