Analysis
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max time kernel
147s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
15/04/2024, 20:10
Static task
static1
Behavioral task
behavioral1
Sample
17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe
Resource
win10v2004-20240412-en
Behavioral task
behavioral2
Sample
17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe
Resource
win11-20240412-en
General
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Target
17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe
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Size
819KB
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MD5
ee36df0a7d9721de85b8349377f67369
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SHA1
18cd0b6d418a197201aedba334f0eab4e1be3723
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SHA256
17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7
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SHA512
a10b87ce926318bb45a3f2a2fc5eb1ad54e23b1da9d2928442738a1faff61bda891f1fbef69d47bde2b81ba0a39080bba8d2567231e6d5657ca923f725b5c84e
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SSDEEP
12288:FX1Qkz5jNBuLiqfGl2T/TDsuqP/uzO8JUipPII2bmZa:FX6iqfGl2T/PmG68J2b2a
Malware Config
Extracted
djvu
http://sajdfue.com/test2/get.php
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extension
.uazq
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offline_id
Jx0i3k2ogR5cKxX1evmz0Ex7TUxOUlnbh2dvnIt1
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payload_url
http://sdfjhuz.com/dl/build2.exe
http://sajdfue.com/files/1/build3.exe
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ransomnote
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Signatures
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Detected Djvu ransomware 17 IoCs
resource yara_rule behavioral1/memory/4980-2-0x0000000004B90000-0x0000000004CAB000-memory.dmp family_djvu behavioral1/memory/936-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/936-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/936-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/936-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/936-15-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3520-20-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3520-21-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3520-22-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3520-27-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3520-28-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3520-29-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3520-32-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3520-34-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3520-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3520-36-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3520-37-0x0000000000400000-0x0000000000537000-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.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\Control Panel\International\Geo\Nation 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 2448 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\042c1366-6bec-4955-8554-bb800766d376\\17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe\" --AutoStart" 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.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.
flow ioc 16 api.2ip.ua 32 api.2ip.ua 15 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4980 set thread context of 936 4980 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 85 PID 1228 set thread context of 3520 1228 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 92 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 936 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 936 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 3520 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 3520 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe -
Suspicious use of WriteProcessMemory 26 IoCs
description pid Process procid_target PID 4980 wrote to memory of 936 4980 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 85 PID 4980 wrote to memory of 936 4980 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 85 PID 4980 wrote to memory of 936 4980 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 85 PID 4980 wrote to memory of 936 4980 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 85 PID 4980 wrote to memory of 936 4980 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 85 PID 4980 wrote to memory of 936 4980 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 85 PID 4980 wrote to memory of 936 4980 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 85 PID 4980 wrote to memory of 936 4980 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 85 PID 4980 wrote to memory of 936 4980 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 85 PID 4980 wrote to memory of 936 4980 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 85 PID 936 wrote to memory of 2448 936 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 87 PID 936 wrote to memory of 2448 936 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 87 PID 936 wrote to memory of 2448 936 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 87 PID 936 wrote to memory of 1228 936 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 89 PID 936 wrote to memory of 1228 936 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 89 PID 936 wrote to memory of 1228 936 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 89 PID 1228 wrote to memory of 3520 1228 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 92 PID 1228 wrote to memory of 3520 1228 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 92 PID 1228 wrote to memory of 3520 1228 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 92 PID 1228 wrote to memory of 3520 1228 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 92 PID 1228 wrote to memory of 3520 1228 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 92 PID 1228 wrote to memory of 3520 1228 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 92 PID 1228 wrote to memory of 3520 1228 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 92 PID 1228 wrote to memory of 3520 1228 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 92 PID 1228 wrote to memory of 3520 1228 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 92 PID 1228 wrote to memory of 3520 1228 17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe 92
Processes
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C:\Users\Admin\AppData\Local\Temp\17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe"C:\Users\Admin\AppData\Local\Temp\17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4980 -
C:\Users\Admin\AppData\Local\Temp\17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe"C:\Users\Admin\AppData\Local\Temp\17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:936 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\042c1366-6bec-4955-8554-bb800766d376" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:2448
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C:\Users\Admin\AppData\Local\Temp\17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe"C:\Users\Admin\AppData\Local\Temp\17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1228 -
C:\Users\Admin\AppData\Local\Temp\17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe"C:\Users\Admin\AppData\Local\Temp\17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
PID:3520
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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
MD53c6a98dff2c8e5d41183fb934602bccf
SHA1389eea4f6c8b9a19dd6efd65b2c979feeb4262a7
SHA2568c5e90026091280487ae42d5c0f266528cacb6de18c7f3d693ecfdb547b06ac8
SHA512fde8e5de812641dc896e8d8182dcf4244670e431f3310aba576f0f330a9d8a4221eb7513005e9755512d0c645cbf164c4c5f8872689d2e52a58b3f39668de8fd
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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
MD5fa398882c00ca809b161d17426ba53cd
SHA194ac7ecc9c57aa8715b38fcdf197b843a76dfcdc
SHA2566e0a2f8b5254db0c41f78a676ef522dc7ad231bb85bc4c04a0d42178c3bb9f7e
SHA51242b13b57acf3801e65c493613dad09e02fe87a295215fc58a1acbc95fc419e41f0010c6bc9e0539f36c770732e3d13e4183020d7f6c9af8c9cec1d14b218c8ca
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize392B
MD50cab1308acd4b5080e455f1fa8642f19
SHA1daee820d6bdc2b8dfdc42b7d0986e8855bb93e46
SHA2562c811f267d39ec944303497fb04a2e97a50b4c01ea3e9ef275fb4e1001477a18
SHA5125d67941dfedefc2f8f2241c974c306207d0d0f2a9f7006918a4ca6643326b6f759fd5c83c9b18625e8ca85099f756dfd7a0839dba60a7211ffb5f609a91b982c
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C:\Users\Admin\AppData\Local\042c1366-6bec-4955-8554-bb800766d376\17e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7.exe
Filesize819KB
MD5ee36df0a7d9721de85b8349377f67369
SHA118cd0b6d418a197201aedba334f0eab4e1be3723
SHA25617e727162cf53ece1cc040d90840dfcc3d7dd2b5979979def35e1194045facd7
SHA512a10b87ce926318bb45a3f2a2fc5eb1ad54e23b1da9d2928442738a1faff61bda891f1fbef69d47bde2b81ba0a39080bba8d2567231e6d5657ca923f725b5c84e