Analysis
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max time kernel
144s -
max time network
82s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
15-06-2024 12:15
Static task
static1
Behavioral task
behavioral1
Sample
5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe
Resource
win10-20240404-en
Behavioral task
behavioral3
Sample
5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral4
Sample
5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe
Resource
win11-20240508-en
General
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Target
5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe
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Size
769KB
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MD5
6b3c3b621f4964f232d23c7b32a2e486
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SHA1
dc7a1111a7fa4380b42dfa8e6d1b22b338aa10fc
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SHA256
5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073
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SHA512
78b0b893295e5c8c811618638bfb9fcca2daef20b209ef4f0aeb400372b9827ff8b01325427ee41091dfb9d6b3c334510a6f2b4cccf407970cf72adb0bb2b293
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SSDEEP
24576:nAVmJoIjqT53ve6LT/8EMuuV1y5SYVWuQWJb:AoJ/Q5XHz+7yA5E
Malware Config
Extracted
djvu
http://habrafa.com/test1/get.php
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extension
.cdpo
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offline_id
Bn3q97hwLouKbhkQRNO4SeV07gjdEQVm8NKhg0t1
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payload_url
http://brusuax.com/dl/build2.exe
http://habrafa.com/files/1/build3.exe
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ransomnote
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Signatures
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Detected Djvu ransomware 18 IoCs
Processes:
resource yara_rule behavioral3/memory/116-2-0x0000000002360000-0x000000000247B000-memory.dmp family_djvu behavioral3/memory/5064-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral3/memory/5064-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral3/memory/5064-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral3/memory/5064-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral3/memory/5064-12-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral3/memory/2776-16-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral3/memory/2776-19-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral3/memory/2776-17-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral3/memory/2776-21-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral3/memory/2776-22-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral3/memory/2776-23-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral3/memory/2776-24-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral3/memory/2776-28-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral3/memory/2776-30-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral3/memory/2776-31-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral3/memory/2776-32-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral3/memory/2776-33-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe -
Modifies file permissions 1 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\c152a268-ee46-43fc-a7e2-6ea08f0cafc2\\5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe\" --AutoStart" 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 1 api.2ip.ua 7 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
Processes:
5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exedescription pid process target process PID 116 set thread context of 5064 116 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe PID 1736 set thread context of 2776 1736 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exepid process 5064 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe 5064 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe 2776 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe 2776 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exedescription pid process target process PID 116 wrote to memory of 5064 116 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe PID 116 wrote to memory of 5064 116 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe PID 116 wrote to memory of 5064 116 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe PID 116 wrote to memory of 5064 116 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe PID 116 wrote to memory of 5064 116 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe PID 116 wrote to memory of 5064 116 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe PID 116 wrote to memory of 5064 116 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe PID 116 wrote to memory of 5064 116 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe PID 116 wrote to memory of 5064 116 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe PID 116 wrote to memory of 5064 116 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe PID 5064 wrote to memory of 1228 5064 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe icacls.exe PID 5064 wrote to memory of 1228 5064 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe icacls.exe PID 5064 wrote to memory of 1228 5064 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe icacls.exe PID 5064 wrote to memory of 1736 5064 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe PID 5064 wrote to memory of 1736 5064 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe PID 5064 wrote to memory of 1736 5064 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe PID 1736 wrote to memory of 2776 1736 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe PID 1736 wrote to memory of 2776 1736 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe PID 1736 wrote to memory of 2776 1736 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe PID 1736 wrote to memory of 2776 1736 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe PID 1736 wrote to memory of 2776 1736 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe PID 1736 wrote to memory of 2776 1736 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe PID 1736 wrote to memory of 2776 1736 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe PID 1736 wrote to memory of 2776 1736 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe PID 1736 wrote to memory of 2776 1736 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe PID 1736 wrote to memory of 2776 1736 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe 5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe"C:\Users\Admin\AppData\Local\Temp\5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe"C:\Users\Admin\AppData\Local\Temp\5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\c152a268-ee46-43fc-a7e2-6ea08f0cafc2" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
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C:\Users\Admin\AppData\Local\Temp\5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe"C:\Users\Admin\AppData\Local\Temp\5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe"C:\Users\Admin\AppData\Local\Temp\5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\c152a268-ee46-43fc-a7e2-6ea08f0cafc2\5e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073.exeFilesize
769KB
MD56b3c3b621f4964f232d23c7b32a2e486
SHA1dc7a1111a7fa4380b42dfa8e6d1b22b338aa10fc
SHA2565e19952acedb1da68215069d44ce1f3d48da10491151003148f1cceab03f1073
SHA51278b0b893295e5c8c811618638bfb9fcca2daef20b209ef4f0aeb400372b9827ff8b01325427ee41091dfb9d6b3c334510a6f2b4cccf407970cf72adb0bb2b293
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memory/116-1-0x00000000021D0000-0x000000000226F000-memory.dmpFilesize
636KB
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memory/116-2-0x0000000002360000-0x000000000247B000-memory.dmpFilesize
1.1MB
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memory/1736-18-0x0000000000400000-0x00000000004C4000-memory.dmpFilesize
784KB
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memory/1736-14-0x0000000000400000-0x00000000004C4000-memory.dmpFilesize
784KB
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memory/2776-23-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/2776-30-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/2776-33-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/2776-32-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/2776-16-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/2776-31-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/2776-19-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/2776-17-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/2776-21-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/2776-22-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/2776-28-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/2776-24-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/5064-4-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/5064-6-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/5064-5-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/5064-3-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB
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memory/5064-12-0x0000000000400000-0x0000000000537000-memory.dmpFilesize
1.2MB