Analysis
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max time kernel
145s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
27-04-2024 22:31
Static task
static1
Behavioral task
behavioral1
Sample
32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral2
Sample
32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
Resource
win11-20240419-en
General
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Target
32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
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Size
807KB
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MD5
f22a07f566c981eb20ff0b4919acc695
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SHA1
8885990f31137750ca6cf4a4ef90b36942f6f890
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SHA256
32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea
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SHA512
7dc4983c0bc68bcce53c8420bb4c049e2cab07d509a0ca088f9d0c1e4803ed2c20f90a985f55564ce51edf8a455b6be4f62f199ec3462bff8343d57f1f642bff
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SSDEEP
12288:O7L6TRDWnyGDwYzM3JailasHMVD1duYBjSwzP3hINNvYe+l:BVWnDwYM1lJHidugTzRoNQe+
Malware Config
Extracted
djvu
http://cajgtus.com/test1/get.php
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extension
.bgjs
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offline_id
Z6iwSvCoAt8T8K2ROxecuXHPNHv7eDyWrc8Ks7t1
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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 behavioral1/memory/3292-2-0x00000000037B0000-0x00000000038CB000-memory.dmp family_djvu behavioral1/memory/876-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/876-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/876-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/876-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/5056-22-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/876-27-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/5056-28-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/5056-25-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/5056-35-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/5056-36-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/5056-37-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/5056-40-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/5056-42-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/5056-43-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/5056-44-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/5056-45-0x0000000000400000-0x0000000000537000-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:
32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe -
Modifies file permissions 1 TTPs 1 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.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\\a7c12b7a-e2a1-4ef5-909d-556b0d9e3428\\32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe\" --AutoStart" 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.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 19 api.2ip.ua 9 api.2ip.ua 10 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
Processes:
32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exedescription pid process target process PID 3292 set thread context of 876 3292 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe PID 4440 set thread context of 5056 4440 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.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:
32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exepid process 876 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe 876 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe 5056 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe 5056 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exedescription pid process target process PID 3292 wrote to memory of 876 3292 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe PID 3292 wrote to memory of 876 3292 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe PID 3292 wrote to memory of 876 3292 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe PID 3292 wrote to memory of 876 3292 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe PID 3292 wrote to memory of 876 3292 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe PID 3292 wrote to memory of 876 3292 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe PID 3292 wrote to memory of 876 3292 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe PID 3292 wrote to memory of 876 3292 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe PID 3292 wrote to memory of 876 3292 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe PID 3292 wrote to memory of 876 3292 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe PID 876 wrote to memory of 3400 876 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe icacls.exe PID 876 wrote to memory of 3400 876 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe icacls.exe PID 876 wrote to memory of 3400 876 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe icacls.exe PID 876 wrote to memory of 4440 876 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe PID 876 wrote to memory of 4440 876 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe PID 876 wrote to memory of 4440 876 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe PID 4440 wrote to memory of 5056 4440 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe PID 4440 wrote to memory of 5056 4440 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe PID 4440 wrote to memory of 5056 4440 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe PID 4440 wrote to memory of 5056 4440 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe PID 4440 wrote to memory of 5056 4440 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe PID 4440 wrote to memory of 5056 4440 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe PID 4440 wrote to memory of 5056 4440 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe PID 4440 wrote to memory of 5056 4440 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe PID 4440 wrote to memory of 5056 4440 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe PID 4440 wrote to memory of 5056 4440 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe"C:\Users\Admin\AppData\Local\Temp\32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3292 -
C:\Users\Admin\AppData\Local\Temp\32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe"C:\Users\Admin\AppData\Local\Temp\32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:876 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\a7c12b7a-e2a1-4ef5-909d-556b0d9e3428" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:3400
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C:\Users\Admin\AppData\Local\Temp\32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe"C:\Users\Admin\AppData\Local\Temp\32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4440 -
C:\Users\Admin\AppData\Local\Temp\32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe"C:\Users\Admin\AppData\Local\Temp\32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
PID:5056
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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=4060 --field-trial-handle=2328,i,5873823382323802923,13134441441264702821,262144 --variations-seed-version /prefetch:81⤵PID:1892
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
MD523c3647724cc7d7f2fd92c7d36600f25
SHA111db3eca57631a679c174dfa364802fc6e841076
SHA256b470d6bb0e33983041874f283d681bd6352325618a8b3b4c85321a8749f369b7
SHA512aceddffd0cfa38e431910877804b7788bb34f4dd544d2691e4a2219c9ff59796c9f31c42b66f195b66ba6f33cd84fde7b7a04a053e8acc135531ccfffb3c41eb
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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
MD50ef6fb8e443e214bfc3a7777d1cb9068
SHA1dd6ce35482c96ce600bf0681d2f74016b8343bb2
SHA2569307db6a012854981591c46b61609daf59e2f6afbf204f09f9696c4aa87db97f
SHA512cf4f24048c9e5607a382ae023890e50d4e1ffbdc5c66eb5b8eb1ce27e72a096cd3dcfb7f653d4d346ced62a515b6d4b9108be3fb400f59b66b735c4b0da1f9da
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize392B
MD5c6aa1d416d5554ee09d3c78c5fe42d49
SHA1b11de8ef5a0cc71243eea0c1923623b01506c63f
SHA256d6f11f4782740342f3d41ded2535ae31a4778a6671f4e92b47ad7d114f11f985
SHA5126b96d384b1ffd99de4d1f16bc216cbe8f5a5aab447ee293f9a88908bfd56fe3a4ece48229887b86c6b83bcec71950d4b253c74ec09b7db287df627f7e2ce3680
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C:\Users\Admin\AppData\Local\a7c12b7a-e2a1-4ef5-909d-556b0d9e3428\32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
Filesize807KB
MD5f22a07f566c981eb20ff0b4919acc695
SHA18885990f31137750ca6cf4a4ef90b36942f6f890
SHA25632ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea
SHA5127dc4983c0bc68bcce53c8420bb4c049e2cab07d509a0ca088f9d0c1e4803ed2c20f90a985f55564ce51edf8a455b6be4f62f199ec3462bff8343d57f1f642bff