Analysis
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max time kernel
143s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system -
submitted
23-05-2024 09:25
Static task
static1
Behavioral task
behavioral1
Sample
d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe
Resource
win10v2004-20240426-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 13 IoCs
Processes:
resource yara_rule behavioral1/memory/2368-6-0x0000000003980000-0x0000000003A9B000-memory.dmp family_djvu behavioral1/memory/1376-7-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1376-8-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1376-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1376-26-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2536-31-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2536-45-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2536-44-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2536-46-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2536-49-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2536-52-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2536-51-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2536-53-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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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-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\3a361332-7860-41df-80f2-bfb02387a987\\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 3 api.2ip.ua 4 api.2ip.ua 9 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
Processes:
d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exed30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exedescription pid process target process PID 2368 set thread context of 1376 2368 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2772 set thread context of 2536 2772 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 1376 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe 1376 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe 2536 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe 2536 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exed30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exed30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exedescription pid process target process PID 2368 wrote to memory of 1376 2368 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2368 wrote to memory of 1376 2368 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2368 wrote to memory of 1376 2368 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2368 wrote to memory of 1376 2368 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2368 wrote to memory of 1376 2368 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2368 wrote to memory of 1376 2368 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2368 wrote to memory of 1376 2368 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2368 wrote to memory of 1376 2368 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2368 wrote to memory of 1376 2368 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2368 wrote to memory of 1376 2368 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2368 wrote to memory of 1376 2368 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 1376 wrote to memory of 2516 1376 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe icacls.exe PID 1376 wrote to memory of 2516 1376 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe icacls.exe PID 1376 wrote to memory of 2516 1376 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe icacls.exe PID 1376 wrote to memory of 2516 1376 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe icacls.exe PID 1376 wrote to memory of 2772 1376 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 1376 wrote to memory of 2772 1376 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 1376 wrote to memory of 2772 1376 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 1376 wrote to memory of 2772 1376 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2772 wrote to memory of 2536 2772 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2772 wrote to memory of 2536 2772 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2772 wrote to memory of 2536 2772 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2772 wrote to memory of 2536 2772 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2772 wrote to memory of 2536 2772 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2772 wrote to memory of 2536 2772 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2772 wrote to memory of 2536 2772 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2772 wrote to memory of 2536 2772 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2772 wrote to memory of 2536 2772 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2772 wrote to memory of 2536 2772 d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe PID 2772 wrote to memory of 2536 2772 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:2368 -
C:\Users\Admin\AppData\Local\Temp\d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe"C:\Users\Admin\AppData\Local\Temp\d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1376 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\3a361332-7860-41df-80f2-bfb02387a987" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:2516 -
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:2772 -
C:\Users\Admin\AppData\Local\Temp\d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe"C:\Users\Admin\AppData\Local\Temp\d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
PID:2536
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
MD523423932c7d3dfbb1b9392ea04a611fd
SHA16832fedd14b0b11cc82dc7540afa415f82ed1d42
SHA2565762a23967380bca7e0fe3ba930e14d5183551a9bdefece0e7ceef28eee62c38
SHA5124a8db0dd0aea93a6fe50184e248fb1ea19f54b5909bd2f77359268684cc2ced66026e65c9a499bb51eede3377b5ac939c7f3aa2046cce271db39c057a518692e
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize344B
MD571953abe2fb17626454ac4de9bed493f
SHA1d8cdb2791c797004f3f1b6baf4f4752bf0bd59d5
SHA256034488abe5f08477ae3665d5380b027f6fead4d65ddd1219e35e287eda233a50
SHA51202b0dfdf1adf3c5965ee0b130730c8af6a9d55157076eeb870b07f84c1e23e4df0766d26d00991bfa14908839939dea9df7cde8b1cf4997df1ef3f1f55b034d0
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize392B
MD518867c111b5eb1fbcaf70e0ba2be3585
SHA1b0cc378e3345ee25f694ec723bec381308d51234
SHA2567dcdabbb5aeff5ddb66e90133b68682d6f1c493f5ba0f608c75ebb26b47c6013
SHA51213154d17737c39f0932dd67a727ad41afa19ea980dd286e023b5a424feefc972b83c8f90b921d6a7eefc9df094586022e554fc61efc4c954d98ebf4f13416fa2
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C:\Users\Admin\AppData\Local\3a361332-7860-41df-80f2-bfb02387a987\d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d.exe
Filesize807KB
MD55435b6a8f8dabe63910f1e9e4d436e5f
SHA1a9e66834552de4d90d205d8b7c349e0d64d6f65f
SHA256d30587fdb3fc7a66dbc5d9f3c33124fe9dd3381bf6b6b3a2a09179902da8168d
SHA512748179129dd992654d01f8397f203840bf16fefbe125e09f455c8569b20ccf6c022022cf8188fa9c942c1d515b306300a19fe19388f1a24388b5858d596e7ca6
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Filesize
65KB
MD5ac05d27423a85adc1622c714f2cb6184
SHA1b0fe2b1abddb97837ea0195be70ab2ff14d43198
SHA256c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
SHA5126d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d