Analysis
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max time kernel
146s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
09/04/2024, 05:46
Static task
static1
Behavioral task
behavioral1
Sample
e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral2
Sample
e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe
Resource
win11-20240319-en
General
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Target
e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe
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Size
770KB
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MD5
1c020d417d5549c596a13af5dfb7710a
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SHA1
d1f64d8ca15f630ecedd0c0a9d029c92bdd9e9f3
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SHA256
e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca
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SHA512
28c2f404ebeaf893fe59bb8dbc61784b7c9fd844b9f93ec68ec3ffdfe04089bca4b920440c0d1ba0a9b930c1343e3b53f9ab8bfab8c333556f9189f1ed9077ff
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SSDEEP
12288:4GgVuusDHbpT8wLAzBkkYDs82CQ9KJlWRezsArPGz3mtMOCsGimISMx:HHbpT8DxYg82Em4/rPGLxJuSMx
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/4312-2-0x0000000004AA0000-0x0000000004BBB000-memory.dmp family_djvu behavioral1/memory/2528-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2528-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2528-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2528-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2528-16-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2596-20-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2596-21-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2596-22-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2596-27-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2596-28-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2596-29-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2596-32-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2596-34-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2596-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2596-36-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2596-37-0x0000000000400000-0x0000000000537000-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-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 1764 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\ce270310-9846-45f1-8119-8869ddda851b\\e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe\" --AutoStart" e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.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 6 api.2ip.ua 20 api.2ip.ua 5 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4312 set thread context of 2528 4312 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 86 PID 4160 set thread context of 2596 4160 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.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 2528 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 2528 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 2596 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 2596 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe -
Suspicious use of WriteProcessMemory 26 IoCs
description pid Process procid_target PID 4312 wrote to memory of 2528 4312 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 86 PID 4312 wrote to memory of 2528 4312 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 86 PID 4312 wrote to memory of 2528 4312 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 86 PID 4312 wrote to memory of 2528 4312 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 86 PID 4312 wrote to memory of 2528 4312 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 86 PID 4312 wrote to memory of 2528 4312 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 86 PID 4312 wrote to memory of 2528 4312 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 86 PID 4312 wrote to memory of 2528 4312 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 86 PID 4312 wrote to memory of 2528 4312 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 86 PID 4312 wrote to memory of 2528 4312 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 86 PID 2528 wrote to memory of 1764 2528 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 89 PID 2528 wrote to memory of 1764 2528 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 89 PID 2528 wrote to memory of 1764 2528 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 89 PID 2528 wrote to memory of 4160 2528 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 90 PID 2528 wrote to memory of 4160 2528 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 90 PID 2528 wrote to memory of 4160 2528 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 90 PID 4160 wrote to memory of 2596 4160 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 92 PID 4160 wrote to memory of 2596 4160 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 92 PID 4160 wrote to memory of 2596 4160 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 92 PID 4160 wrote to memory of 2596 4160 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 92 PID 4160 wrote to memory of 2596 4160 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 92 PID 4160 wrote to memory of 2596 4160 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 92 PID 4160 wrote to memory of 2596 4160 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 92 PID 4160 wrote to memory of 2596 4160 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 92 PID 4160 wrote to memory of 2596 4160 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 92 PID 4160 wrote to memory of 2596 4160 e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe 92
Processes
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C:\Users\Admin\AppData\Local\Temp\e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe"C:\Users\Admin\AppData\Local\Temp\e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4312 -
C:\Users\Admin\AppData\Local\Temp\e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe"C:\Users\Admin\AppData\Local\Temp\e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2528 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\ce270310-9846-45f1-8119-8869ddda851b" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:1764
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C:\Users\Admin\AppData\Local\Temp\e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe"C:\Users\Admin\AppData\Local\Temp\e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4160 -
C:\Users\Admin\AppData\Local\Temp\e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe"C:\Users\Admin\AppData\Local\Temp\e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
PID:2596
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize1KB
MD5580071ebd24cccfd9268e1474bb8134e
SHA1443665efe7009fe1d4c5bc4786dc9cc540e59ef6
SHA25653e3fd53196b53d23b724612cf2704518edf3e979dca02f5674ac419b5f7b461
SHA51213d52455d8a30a0af06c420cd01f13f55efc4c55b59883c5208bf4929352e7b783557bff6a157c4fc71a8e7cbfadf00d55eef8ebef4b984624d8feb116a960a4
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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
MD5f2cc36bbd15dd79e10a87a86c6fc1f58
SHA192e40906df698b5c151897186c2c6ba9d4d1910f
SHA2566347ac203269f34d0127b483c2e8bba965c58d53a19aa9c7dee402fce9b8bcf2
SHA512aaa97d375d19427ea85fa77e3105f4f79025d62a928b4702133d428322061d2dff2a0353f918bb365c8a3fbb9a8e198778848e2c3bb701a09c3d790da5e5fbc6
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize392B
MD563ad7a39cf5c9671df82c6d294b49259
SHA15a4fbf8665e50a950a316be61db0d5fe2b440b73
SHA256ad8742287e7c3f3ef8c6e0da37df3c0b415a9044cde1d4ad0ac5bb439008444f
SHA5123c729ff31a789eac4ca13e4afb803a1aeb8740d8fe4f734220a043e7ef3933137bfdba1eaafd4195415ffb3b56b7357e2c081d7414bf7ea991e45ef015d3905c
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C:\Users\Admin\AppData\Local\ce270310-9846-45f1-8119-8869ddda851b\e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe
Filesize770KB
MD51c020d417d5549c596a13af5dfb7710a
SHA1d1f64d8ca15f630ecedd0c0a9d029c92bdd9e9f3
SHA256e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca
SHA51228c2f404ebeaf893fe59bb8dbc61784b7c9fd844b9f93ec68ec3ffdfe04089bca4b920440c0d1ba0a9b930c1343e3b53f9ab8bfab8c333556f9189f1ed9077ff