Analysis
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max time kernel
143s -
max time network
126s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
23-05-2024 09:22
Static task
static1
Behavioral task
behavioral1
Sample
d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral2
Sample
d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe
Resource
win11-20240508-en
General
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Target
d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe
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Size
807KB
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MD5
5435b6a8f8dabe63910f1e9e4d436e5f
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SHA1
a9e66834552de4d90d205d8b7c349e0d64d6f65f
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SHA256
d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d
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SHA512
748179129dd992654d01f8397f203840bf16fefbe125e09f455c8569b20ccf6c022022cf8188fa9c942c1d515b306300a19fe19388f1a24388b5858d596e7ca6
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SSDEEP
12288:Kupoo6qqaUYbgUaK5agd9dDOL21+Y8aUnEunsDTDENagBhWZDaVs3Uw:tp56qqauOaU9ECDUEhr8CEw
Malware Config
Extracted
djvu
http://cajgtus.com/test1/get.php
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extension
.vepi
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offline_id
EGfa5svnSGFJka7LZBQoqff0QtO1IpTauoDvGvt1
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payload_url
http://sdfjhuz.com/dl/build2.exe
http://cajgtus.com/files/1/build3.exe
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ransomnote
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Signatures
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Detected Djvu ransomware 16 IoCs
Processes:
resource yara_rule behavioral1/memory/4332-2-0x0000000003DD0000-0x0000000003EEB000-memory.dmp family_djvu behavioral1/memory/4572-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4572-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4572-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4572-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/4572-19-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1472-22-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1472-24-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1472-31-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1472-30-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1472-32-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1472-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1472-38-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1472-37-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1472-40-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1472-41-0x0000000000400000-0x0000000000537000-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:
d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe -
Modifies file permissions 1 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\dd6c1939-36f3-494f-9a93-4b5934225d5e\\d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe\" --AutoStart" d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 5 api.2ip.ua 6 api.2ip.ua 15 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
Processes:
d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exed30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exedescription pid process target process PID 4332 set thread context of 4572 4332 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2036 set thread context of 1472 2036 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.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:
d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exed30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exepid process 4572 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe 4572 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe 1472 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe 1472 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exed30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exed30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exedescription pid process target process PID 4332 wrote to memory of 4572 4332 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 4332 wrote to memory of 4572 4332 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 4332 wrote to memory of 4572 4332 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 4332 wrote to memory of 4572 4332 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 4332 wrote to memory of 4572 4332 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 4332 wrote to memory of 4572 4332 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 4332 wrote to memory of 4572 4332 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 4332 wrote to memory of 4572 4332 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 4332 wrote to memory of 4572 4332 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 4332 wrote to memory of 4572 4332 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 4572 wrote to memory of 4348 4572 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe icacls.exe PID 4572 wrote to memory of 4348 4572 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe icacls.exe PID 4572 wrote to memory of 4348 4572 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe icacls.exe PID 4572 wrote to memory of 2036 4572 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 4572 wrote to memory of 2036 4572 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 4572 wrote to memory of 2036 4572 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2036 wrote to memory of 1472 2036 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2036 wrote to memory of 1472 2036 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2036 wrote to memory of 1472 2036 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2036 wrote to memory of 1472 2036 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2036 wrote to memory of 1472 2036 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2036 wrote to memory of 1472 2036 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2036 wrote to memory of 1472 2036 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2036 wrote to memory of 1472 2036 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2036 wrote to memory of 1472 2036 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2036 wrote to memory of 1472 2036 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe"C:\Users\Admin\AppData\Local\Temp\d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4332 -
C:\Users\Admin\AppData\Local\Temp\d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe"C:\Users\Admin\AppData\Local\Temp\d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4572 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\dd6c1939-36f3-494f-9a93-4b5934225d5e" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:4348
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C:\Users\Admin\AppData\Local\Temp\d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe"C:\Users\Admin\AppData\Local\Temp\d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2036 -
C:\Users\Admin\AppData\Local\Temp\d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe"C:\Users\Admin\AppData\Local\Temp\d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
PID:1472
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4404,i,1697479186275492802,18058102846092193784,262144 --variations-seed-version --mojo-platform-channel-handle=4368 /prefetch:81⤵PID:3000
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize1KB
MD5e4cacc9fa4adc8a6751aaf917c99e447
SHA1d27c0b41d3fe6627c82ea3e6e762b1474f64ba51
SHA2566ebb6b38a3cab01ca3d714f8df8b1d1dc0f159922fe9ae5e104dcd27c59eaf30
SHA512fc104a463bf08270217f88841c8690dcb264abeebf8bd78dfda2dd2bd4fa85231dc7aede74e427483065ef3e6ef3f2c7e73c1c67dc274861da3421ea35927a80
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize724B
MD58202a1cd02e7d69597995cabbe881a12
SHA18858d9d934b7aa9330ee73de6c476acf19929ff6
SHA25658f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5
SHA51297ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize410B
MD5c882d1be8633b4058dadd059937eedec
SHA162ceed4c0af15b79846c85633193e3620d2ff36b
SHA256f373d4ab078ac1aaaf9f559d1c2706bd1df0e38cd3fe4f4e8b8b1f0f60eb09c8
SHA51204f5bcff82997d3a7806391c8e631d10d5a29efee9fa357bb00783169bde7dc14fa246f6fd4a6b60051f57566dcf5de2535396cc64ddac193c4fbee00e2f8bb3
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize392B
MD55c6c1b916a6064cc07dc071f50586284
SHA15652ecbff28b9d198a96d44e4674d3e4f5ea21af
SHA25637d1422572b7033a580ba520cb7dc696a075dd79d13c2df157c36ba8f01e722e
SHA512079612ebcc78f04d4582ddb260974b2e6e1f6f04b0147e84b95935730dcd67295e48b7a176681c7b7c9e5f0c15afb0be583d9be1adb061825e0655f0123b288b
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C:\Users\Admin\AppData\Local\dd6c1939-36f3-494f-9a93-4b5934225d5e\d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe
Filesize807KB
MD55435b6a8f8dabe63910f1e9e4d436e5f
SHA1a9e66834552de4d90d205d8b7c349e0d64d6f65f
SHA256d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d
SHA512748179129dd992654d01f8397f203840bf16fefbe125e09f455c8569b20ccf6c022022cf8188fa9c942c1d515b306300a19fe19388f1a24388b5858d596e7ca6