Analysis
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max time kernel
143s -
max time network
116s -
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, 15:31
Static task
static1
Behavioral task
behavioral1
Sample
2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe
Resource
win10v2004-20240412-en
Behavioral task
behavioral2
Sample
2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe
Resource
win11-20240412-en
General
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Target
2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe
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Size
803KB
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MD5
db5427457fb2592b4b7b630ceae0193e
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SHA1
8a8a4506975b1f11bf2047cc9d43c72370e7fb28
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SHA256
2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38
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SHA512
a686d28e056f831042ffa906e4882107d2f5b170b61d00fc2e1f39cac4ab51cf4c7645f340bfb622d28ae934a8aed366ef715f5b07143acf846d9a5639cb57b8
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SSDEEP
12288:AhqOckzti/cE1G+ikn/YB13h732Zwx2kkOIeSbRm/o0g6cbJNQZFl:Ahq1G+PnQBHnx2kc3bR2y6szQZF
Malware Config
Extracted
djvu
http://sajdfue.com/test1/get.php
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extension
.uajs
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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/1472-2-0x0000000004BB0000-0x0000000004CCB000-memory.dmp family_djvu behavioral1/memory/3964-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3964-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3964-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3964-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3964-15-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2104-20-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2104-21-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2104-22-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2104-27-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2104-28-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2104-29-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2104-32-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2104-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2104-34-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2104-36-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2104-37-0x0000000000400000-0x0000000000537000-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-1-5-21-1132431369-515282257-1998160155-1000\Control Panel\International\Geo\Nation 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 2792 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\a2546bf4-60f6-4fec-b208-6f41c85c4934\\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe\" --AutoStart" 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.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 8 api.2ip.ua 9 api.2ip.ua 24 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1472 set thread context of 3964 1472 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 88 PID 4396 set thread context of 2104 4396 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 93 -
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 3964 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 3964 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 2104 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 2104 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe -
Suspicious use of WriteProcessMemory 26 IoCs
description pid Process procid_target PID 1472 wrote to memory of 3964 1472 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 88 PID 1472 wrote to memory of 3964 1472 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 88 PID 1472 wrote to memory of 3964 1472 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 88 PID 1472 wrote to memory of 3964 1472 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 88 PID 1472 wrote to memory of 3964 1472 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 88 PID 1472 wrote to memory of 3964 1472 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 88 PID 1472 wrote to memory of 3964 1472 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 88 PID 1472 wrote to memory of 3964 1472 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 88 PID 1472 wrote to memory of 3964 1472 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 88 PID 1472 wrote to memory of 3964 1472 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 88 PID 3964 wrote to memory of 2792 3964 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 90 PID 3964 wrote to memory of 2792 3964 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 90 PID 3964 wrote to memory of 2792 3964 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 90 PID 3964 wrote to memory of 4396 3964 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 91 PID 3964 wrote to memory of 4396 3964 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 91 PID 3964 wrote to memory of 4396 3964 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 91 PID 4396 wrote to memory of 2104 4396 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 93 PID 4396 wrote to memory of 2104 4396 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 93 PID 4396 wrote to memory of 2104 4396 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 93 PID 4396 wrote to memory of 2104 4396 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 93 PID 4396 wrote to memory of 2104 4396 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 93 PID 4396 wrote to memory of 2104 4396 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 93 PID 4396 wrote to memory of 2104 4396 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 93 PID 4396 wrote to memory of 2104 4396 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 93 PID 4396 wrote to memory of 2104 4396 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 93 PID 4396 wrote to memory of 2104 4396 2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe"C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1472 -
C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe"C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3964 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\a2546bf4-60f6-4fec-b208-6f41c85c4934" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:2792
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C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe"C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4396 -
C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe"C:\Users\Admin\AppData\Local\Temp\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
PID:2104
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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
MD5f741810cb830974aebab5f43eb80bc43
SHA11019ffd11ba07f662659b7f244d2743b4b1562c3
SHA25620c4d592f763227cd6ed7fc812ae9d65edd6e046c30a70e7c694c579d9f1580a
SHA512607ca542510b2a90fbade08569e449fdf35673dc4f045c4ca61982666fe2dd694d265835ebe2d90146dfcecedc7f229804c8e235d8eb9ca36f761064522539f4
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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
MD50836b385c78e554b37b05f2b82e1d262
SHA17bb738da5da99f88806bb71a02add22ed7aeaad1
SHA256f9e6699017b010595ce86ae369024b0f6644374b1f8b43180cf2997cbed928ba
SHA512626946bdcbddefaad76376aa2f569923d869a3885455d630594e91f6823fa88008199efe860cb76d14f8a6066611d7b21bed0ea23bc601226ecbd9d33d8515d5
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize392B
MD5e894578529f08059db9589e4607fdeac
SHA16566f4c9f4f30aa148749a0bd35a254a670958a3
SHA2564c5bc1c96a5c3e15ebe3a8947c3c092e49a7fac7c90e4f048948a93818b99d15
SHA512535ee8a5a3b8603675260ff40ef2ad176c053f63f61d1f2fbd5c178f1be34c8213746273b8f461d7a0ae39413dbf56737b0db7f806a5c78d28faa4e7a196ef57
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C:\Users\Admin\AppData\Local\a2546bf4-60f6-4fec-b208-6f41c85c4934\2ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38.exe
Filesize803KB
MD5db5427457fb2592b4b7b630ceae0193e
SHA18a8a4506975b1f11bf2047cc9d43c72370e7fb28
SHA2562ee7942af6d8e33fee4035fa4348f83303f31ab58f71d621889fa2bc2e724f38
SHA512a686d28e056f831042ffa906e4882107d2f5b170b61d00fc2e1f39cac4ab51cf4c7645f340bfb622d28ae934a8aed366ef715f5b07143acf846d9a5639cb57b8