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ChilkatUtil.dll Ransomware STOP/Djvu Analysis

Updated 1 year ago
Checked by Malaware Check
ChilkatUtil.dll

Technical Analysis

File Name ChilkatUtil.dll
File Type
PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
Scanner Version 1.0.168.174
Database Version 2024-03-10 01:00:27 UTC
⚠

Ransom.Win32.STOP.tr!n

Malware family: STOP/Djvu

STOP/Djvu ransomware encrypts files on victim systems and demands ransom payments for decryption keys. This ransomware family has maintained consistent activity over several years, affecting both individual users and organizational networks through various distribution methods.
N/A
Detection Rate
660,384
File Size (bytes)
2024-03-10
Analysis Date

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File Identification

Hash Type Value Action
MD5
42a540363489455ce9e766b4533fccd9
SHA1
fc0a0c6be66cea70576a5c06359076d62adc9611
SHA256
fe2090450e9761da52fcd037934553d061fd0b395ad260dff3b81c30c202a10c
SHA512
b857dfd6a1a07410a3ed2083c56eec16b70b6a5e1735f341e6dc2ec416b8859f83804736cd816793b581c66f0e992c32dd07188618b5808be08771153e580dfe
ImpHash
e6acde8a85613da156de657f519387dc

PE Analysis

Basic Information

▼
Image Base 0x10000000
Entry Point 0x100330e5
Compilation Time 2007-04-20 11:35:10
Checksum 0x000a4470 (Actual: 0x000a4470)
OS Version 4.0
PEiD Signatures PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
Digital Signature OK
Imports 6 libraries
KERNEL32, USER32, GDI32, ADVAPI32, ole32, OLEAUT32
Exports 4 functions
Resources 15 Resources
Sections 5 Sections

Version Information

▼
Comments http://www.chilkatsoft.com
CompanyName Chilkat Software, Inc.
FileDescription Chilkat Util ActiveX
FileVersion 3, 0, 0, 0
InternalName ChilkatUtil
LegalCopyright Copyright 2000-2007
LegalTrademarks
OLESelfRegister
OriginalFilename ChilkatUtil.dll
PrivateBuild
ProductName Chilkat Util
ProductVersion 3, 0, 0, 0
SpecialBuild
Translation 0x0409 0x04b0

PE Sections

▼
Name Virtual Address Virtual Size Raw Size Entropy Characteristics MD5
.text 0x00001000 272,666 bytes 274,432 bytes 6.49 (Normal) IMAGE_SCN_CNT_CODE|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ 564FE86288618AA7216EF075D2EE6AC7
.rdata 0x00044000 50,280 bytes 53,248 bytes 4.62 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ B9D573EB943D75973891EC8BBEF5F336
.data 0x00051000 254,608 bytes 245,760 bytes 6.10 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE 152FF92A0F0959651F60E36B7FD7CF41
.rsrc 0x00090000 35,016 bytes 36,864 bytes 5.40 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ C78696C8B51F1327B790A9A5E5130021
.reloc 0x00099000 37,106 bytes 40,960 bytes 4.48 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_DISCARDABLE|IMAGE_SCN_MEM_READ EDDF9CA9101203CC3D6CE67653049480

Resource Analysis

▼
Total Resources: 15 (34,054 bytes)
Resource Type Count Total Size Percentage
REGISTRY 7 7,394 bytes
21.7%
TYPELIB 1 16,972 bytes
49.8%
RT_BITMAP 4 8,352 bytes
24.5%
RT_STRING 1 54 bytes
0.2%
RT_VERSION 1 988 bytes
2.9%
RT_HTML 1 294 bytes
0.9%

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

OK

Ransom.Win32.STOP.tr!n Removal

Gridinsoft has the capability to identify and eliminate Ransom.Win32.STOP.tr!n without requiring further user intervention.

Download Anti-Malware

Removal Instructions

Follow these steps to completely remove the threat from your system

  1. Start by downloading Gridinsoft Anti-Malware to your computer.
  2. Double-click on the gsam-en-install.exe file and follow the on-screen instructions to install the program.
  3. Once the installation of Gridinsoft Anti-Malware is complete, the program will open on the Scan screen.
  4. Click on the "Standard Scan" button to begin scanning your computer for threats.
  5. After the scanning process is finished, click on "Clean Now" to remove any detected threats.
  6. If prompted, restart your system to complete the removal process and ensure all threats are eliminated.
Important: Before You Start
Disconnect from the internet to prevent the malware from spreading or downloading additional threats. Run the scan in Safe Mode for better detection and removal of persistent threats.

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