Analysis
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max time kernel
148s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
22-05-2024 18:59
Static task
static1
Behavioral task
behavioral1
Sample
3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe
Resource
win10v2004-20240226-en
General
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Target
3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe
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Size
710KB
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MD5
f47cff4805227d54842556b0bddaaf7e
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SHA1
f734391825c9028127d49fd00dcfcc24aa801eaa
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SHA256
3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19
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SHA512
369af8e8e589126accc108c5e86484ce71d57646b2a7ee436cc2a1a0d71ca57422681590300215b4606306d5f9df6e1264c7ec8d87da8ccf12f8054a67f8964b
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SSDEEP
12288:BidJzy+JS1wz8BcokecNRgMjBoVvS27EjYkWTa5310Wh44Zh3Pfp6/yA2m:Bid1vJS1xcokeUsvS27wG4nfB6KA2m
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 17 IoCs
Processes:
resource yara_rule behavioral2/memory/1600-2-0x0000000004B60000-0x0000000004C7B000-memory.dmp family_djvu behavioral2/memory/1612-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1612-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1612-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1612-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1612-15-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/1612-18-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4396-21-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4396-23-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4396-29-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4396-28-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4396-30-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4396-33-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4396-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4396-36-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4396-37-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4396-38-0x0000000000400000-0x0000000000537000-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:
3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe -
Modifies file permissions 1 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\9f782054-e70f-4f23-b9d0-cd902dbf4481\\3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe\" --AutoStart" 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.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 8 api.2ip.ua 9 api.2ip.ua 24 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
Processes:
3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exedescription pid process target process PID 1600 set thread context of 1612 1600 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe PID 4460 set thread context of 4396 4460 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.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:
3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exepid process 1612 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe 1612 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe 4396 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe 4396 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exedescription pid process target process PID 1600 wrote to memory of 1612 1600 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe PID 1600 wrote to memory of 1612 1600 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe PID 1600 wrote to memory of 1612 1600 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe PID 1600 wrote to memory of 1612 1600 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe PID 1600 wrote to memory of 1612 1600 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe PID 1600 wrote to memory of 1612 1600 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe PID 1600 wrote to memory of 1612 1600 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe PID 1600 wrote to memory of 1612 1600 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe PID 1600 wrote to memory of 1612 1600 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe PID 1600 wrote to memory of 1612 1600 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe PID 1612 wrote to memory of 324 1612 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe icacls.exe PID 1612 wrote to memory of 324 1612 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe icacls.exe PID 1612 wrote to memory of 324 1612 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe icacls.exe PID 1612 wrote to memory of 4460 1612 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe PID 1612 wrote to memory of 4460 1612 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe PID 1612 wrote to memory of 4460 1612 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe PID 4460 wrote to memory of 4396 4460 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe PID 4460 wrote to memory of 4396 4460 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe PID 4460 wrote to memory of 4396 4460 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe PID 4460 wrote to memory of 4396 4460 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe PID 4460 wrote to memory of 4396 4460 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe PID 4460 wrote to memory of 4396 4460 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe PID 4460 wrote to memory of 4396 4460 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe PID 4460 wrote to memory of 4396 4460 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe PID 4460 wrote to memory of 4396 4460 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe PID 4460 wrote to memory of 4396 4460 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe 3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe"C:\Users\Admin\AppData\Local\Temp\3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1600 -
C:\Users\Admin\AppData\Local\Temp\3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe"C:\Users\Admin\AppData\Local\Temp\3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1612 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\9f782054-e70f-4f23-b9d0-cd902dbf4481" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:324
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C:\Users\Admin\AppData\Local\Temp\3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe"C:\Users\Admin\AppData\Local\Temp\3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4460 -
C:\Users\Admin\AppData\Local\Temp\3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe"C:\Users\Admin\AppData\Local\Temp\3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
PID:4396
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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 --mojo-platform-channel-handle=4112 --field-trial-handle=3240,i,13319578961094268484,16557498665191861597,262144 --variations-seed-version /prefetch:81⤵PID:4180
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
MD56728aea2631b86a76c237508d8ba9b55
SHA17a670f95cac088313f7558869162fe01c6dc0ec9
SHA256e1dd7380c6df33cd5702b032e0e359029d3ef7630f06ceb42cfdc154fd0baf7b
SHA512533080cd1ec40b8530cad5c9914e0a5156d225f7392283ed2607eda4f1db4a6930002274060ed9130a6f634222c2e15818e16a50579cfe7f5274d028d31212f5
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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
MD581d8847f143af110c8300ab4568ba0e8
SHA1c5eda2a9ccea273811e317a6533f10d15d941f36
SHA2563b4276ccdb7c79659e214d2adff90c9f56a04d898d2fc58e63eb069252a398bb
SHA5126b190cb0726743c329824b81f73ad75874338c44097189fe7a59309b6b6987b132834737668c76a0a5b6dc08be96d1bd6ef66f94f48e18622788d9ec582d18cd
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize392B
MD5a326d394b26355e64d8649a7a0789bc0
SHA1aa979c11d926cf203d0113911fec9ab1d77c0228
SHA256020c9f25708bb48d9d437391ebd09600e93f0b8b0541e6d7a8ad5f588fce474f
SHA512eea6b8fad0512cf60529939a6bfb3923e2c7d2d1b609962fcb9b8caacfb3ecb80847f1d76f9a382b6ad4cce98f566b079c3196387be5b06c3a7e2ed40d435e64
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C:\Users\Admin\AppData\Local\9f782054-e70f-4f23-b9d0-cd902dbf4481\3a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19.exe
Filesize710KB
MD5f47cff4805227d54842556b0bddaaf7e
SHA1f734391825c9028127d49fd00dcfcc24aa801eaa
SHA2563a2093b715f42abed73e4fa37d3c58d1bb0cd6f4767ae096f43518e1b168cb19
SHA512369af8e8e589126accc108c5e86484ce71d57646b2a7ee436cc2a1a0d71ca57422681590300215b4606306d5f9df6e1264c7ec8d87da8ccf12f8054a67f8964b