Analysis
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max time kernel
159s -
max time network
167s -
platform
windows10-2004_x64 -
resource
win10v2004-20230221-en -
resource tags
arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system -
submitted
21-05-2023 11:14
Static task
static1
Behavioral task
behavioral1
Sample
noname401.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
noname401.exe
Resource
win10v2004-20230221-en
General
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Target
noname401.exe
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Size
788KB
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MD5
2447ca3d420385fbb67c3c33196b3d65
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SHA1
cf75bf93d948eb3d9be9e39807901e7a8a989081
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SHA256
251ee3a528ff1960e2948203117af8a82fcd501c0a6a190068c9601482310b65
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SHA512
f29ce1748c121f5ca5056df68c011e9342f40b34742b2152750d226c7871e0470a3fd83c38e5a8df47dee64cbe75ebb512eff14a91a023b14b9437d910e173b5
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SSDEEP
24576:a7uS6Grpec0X7QSBt3srUN+saWRJ0NB5akt:aqS3QFH3mUnRaNBI
Malware Config
Extracted
djvu
http://zexeq.com/lancer/get.php
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extension
.gatq
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offline_id
jB2aJtVEWRwbJf76a6OKB8sn0BtTgNlHYUC5wLt1
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payload_url
http://colisumy.com/dl/build2.exe
http://zexeq.com/files/1/build3.exe
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ransomnote
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Extracted
vidar
3.9
9dfa7ee730fa2f1efb5ed51dbbec22f5
https://steamcommunity.com/profiles/76561199263069598
https://t.me/cybehost
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profile_id_v2
9dfa7ee730fa2f1efb5ed51dbbec22f5
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user_agent
Mozilla/5.0 (compatible; Konqueror/3.5; Linux) KHTML/3.5.7 (like Gecko) (Debian)
Signatures
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Detected Djvu ransomware 16 IoCs
resource yara_rule behavioral2/memory/4120-134-0x00000000023B0000-0x00000000024CB000-memory.dmp family_djvu behavioral2/memory/4532-135-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4532-136-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4532-137-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4532-138-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/4532-147-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3424-151-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3424-152-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3424-153-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3424-156-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3424-157-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3424-161-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3424-164-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3424-163-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3424-202-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/3424-279-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Downloads MZ/PE file
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Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation noname401.exe Key value queried \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation noname401.exe -
Executes dropped EXE 4 IoCs
pid Process 1152 build2.exe 1644 build2.exe 520 build3.exe 1280 mstsca.exe -
Loads dropped DLL 2 IoCs
pid Process 1644 build2.exe 1644 build2.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 1252 icacls.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\b01f0f64-d073-4670-91bd-5503690b71fc\\noname401.exe\" --AutoStart" noname401.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 9 api.2ip.ua 8 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 4120 set thread context of 4532 4120 noname401.exe 82 PID 5028 set thread context of 3424 5028 noname401.exe 86 PID 1152 set thread context of 1644 1152 build2.exe 95 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString build2.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 build2.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4200 schtasks.exe 4624 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 4532 noname401.exe 4532 noname401.exe 3424 noname401.exe 3424 noname401.exe 1644 build2.exe 1644 build2.exe -
Suspicious use of WriteProcessMemory 47 IoCs
description pid Process procid_target PID 4120 wrote to memory of 4532 4120 noname401.exe 82 PID 4120 wrote to memory of 4532 4120 noname401.exe 82 PID 4120 wrote to memory of 4532 4120 noname401.exe 82 PID 4120 wrote to memory of 4532 4120 noname401.exe 82 PID 4120 wrote to memory of 4532 4120 noname401.exe 82 PID 4120 wrote to memory of 4532 4120 noname401.exe 82 PID 4120 wrote to memory of 4532 4120 noname401.exe 82 PID 4120 wrote to memory of 4532 4120 noname401.exe 82 PID 4120 wrote to memory of 4532 4120 noname401.exe 82 PID 4120 wrote to memory of 4532 4120 noname401.exe 82 PID 4532 wrote to memory of 1252 4532 noname401.exe 83 PID 4532 wrote to memory of 1252 4532 noname401.exe 83 PID 4532 wrote to memory of 1252 4532 noname401.exe 83 PID 4532 wrote to memory of 5028 4532 noname401.exe 84 PID 4532 wrote to memory of 5028 4532 noname401.exe 84 PID 4532 wrote to memory of 5028 4532 noname401.exe 84 PID 5028 wrote to memory of 3424 5028 noname401.exe 86 PID 5028 wrote to memory of 3424 5028 noname401.exe 86 PID 5028 wrote to memory of 3424 5028 noname401.exe 86 PID 5028 wrote to memory of 3424 5028 noname401.exe 86 PID 5028 wrote to memory of 3424 5028 noname401.exe 86 PID 5028 wrote to memory of 3424 5028 noname401.exe 86 PID 5028 wrote to memory of 3424 5028 noname401.exe 86 PID 5028 wrote to memory of 3424 5028 noname401.exe 86 PID 5028 wrote to memory of 3424 5028 noname401.exe 86 PID 5028 wrote to memory of 3424 5028 noname401.exe 86 PID 3424 wrote to memory of 1152 3424 noname401.exe 94 PID 3424 wrote to memory of 1152 3424 noname401.exe 94 PID 3424 wrote to memory of 1152 3424 noname401.exe 94 PID 1152 wrote to memory of 1644 1152 build2.exe 95 PID 1152 wrote to memory of 1644 1152 build2.exe 95 PID 1152 wrote to memory of 1644 1152 build2.exe 95 PID 1152 wrote to memory of 1644 1152 build2.exe 95 PID 1152 wrote to memory of 1644 1152 build2.exe 95 PID 1152 wrote to memory of 1644 1152 build2.exe 95 PID 1152 wrote to memory of 1644 1152 build2.exe 95 PID 1152 wrote to memory of 1644 1152 build2.exe 95 PID 1152 wrote to memory of 1644 1152 build2.exe 95 PID 3424 wrote to memory of 520 3424 noname401.exe 96 PID 3424 wrote to memory of 520 3424 noname401.exe 96 PID 3424 wrote to memory of 520 3424 noname401.exe 96 PID 520 wrote to memory of 4200 520 build3.exe 97 PID 520 wrote to memory of 4200 520 build3.exe 97 PID 520 wrote to memory of 4200 520 build3.exe 97 PID 1280 wrote to memory of 4624 1280 mstsca.exe 100 PID 1280 wrote to memory of 4624 1280 mstsca.exe 100 PID 1280 wrote to memory of 4624 1280 mstsca.exe 100
Processes
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C:\Users\Admin\AppData\Local\Temp\noname401.exe"C:\Users\Admin\AppData\Local\Temp\noname401.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4120 -
C:\Users\Admin\AppData\Local\Temp\noname401.exe"C:\Users\Admin\AppData\Local\Temp\noname401.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4532 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\b01f0f64-d073-4670-91bd-5503690b71fc" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:1252
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C:\Users\Admin\AppData\Local\Temp\noname401.exe"C:\Users\Admin\AppData\Local\Temp\noname401.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5028 -
C:\Users\Admin\AppData\Local\Temp\noname401.exe"C:\Users\Admin\AppData\Local\Temp\noname401.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3424 -
C:\Users\Admin\AppData\Local\41dd3475-7ced-4cc1-ae52-bf7a2d170ab0\build2.exe"C:\Users\Admin\AppData\Local\41dd3475-7ced-4cc1-ae52-bf7a2d170ab0\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1152 -
C:\Users\Admin\AppData\Local\41dd3475-7ced-4cc1-ae52-bf7a2d170ab0\build2.exe"C:\Users\Admin\AppData\Local\41dd3475-7ced-4cc1-ae52-bf7a2d170ab0\build2.exe"6⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:1644
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C:\Users\Admin\AppData\Local\41dd3475-7ced-4cc1-ae52-bf7a2d170ab0\build3.exe"C:\Users\Admin\AppData\Local\41dd3475-7ced-4cc1-ae52-bf7a2d170ab0\build3.exe"5⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:520 -
C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"6⤵
- Creates scheduled task(s)
PID:4200
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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exeC:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1280 -
C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"2⤵
- Creates scheduled task(s)
PID:4624
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
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Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
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Filesize
379KB
MD537b6aab56a0f770ce58a670322361a1c
SHA187606604cdaa89b93d4d1b5e3e12f5ec24f60016
SHA2563d9cf227ef3c29b9ca22c66359fdd61d9b3d3f2bb197ec3df42d49ff22b989a4
SHA5127b99a56e2160b3f910f75b5d21975587310ad61738613cefbce0d0b25c9d3af07ebeae9c6668907e00e2866259fcca079b4137e06c0d7cede5c5e5178d030a1e
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Filesize
379KB
MD537b6aab56a0f770ce58a670322361a1c
SHA187606604cdaa89b93d4d1b5e3e12f5ec24f60016
SHA2563d9cf227ef3c29b9ca22c66359fdd61d9b3d3f2bb197ec3df42d49ff22b989a4
SHA5127b99a56e2160b3f910f75b5d21975587310ad61738613cefbce0d0b25c9d3af07ebeae9c6668907e00e2866259fcca079b4137e06c0d7cede5c5e5178d030a1e
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Filesize
379KB
MD537b6aab56a0f770ce58a670322361a1c
SHA187606604cdaa89b93d4d1b5e3e12f5ec24f60016
SHA2563d9cf227ef3c29b9ca22c66359fdd61d9b3d3f2bb197ec3df42d49ff22b989a4
SHA5127b99a56e2160b3f910f75b5d21975587310ad61738613cefbce0d0b25c9d3af07ebeae9c6668907e00e2866259fcca079b4137e06c0d7cede5c5e5178d030a1e
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Filesize
379KB
MD537b6aab56a0f770ce58a670322361a1c
SHA187606604cdaa89b93d4d1b5e3e12f5ec24f60016
SHA2563d9cf227ef3c29b9ca22c66359fdd61d9b3d3f2bb197ec3df42d49ff22b989a4
SHA5127b99a56e2160b3f910f75b5d21975587310ad61738613cefbce0d0b25c9d3af07ebeae9c6668907e00e2866259fcca079b4137e06c0d7cede5c5e5178d030a1e
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
788KB
MD52447ca3d420385fbb67c3c33196b3d65
SHA1cf75bf93d948eb3d9be9e39807901e7a8a989081
SHA256251ee3a528ff1960e2948203117af8a82fcd501c0a6a190068c9601482310b65
SHA512f29ce1748c121f5ca5056df68c011e9342f40b34742b2152750d226c7871e0470a3fd83c38e5a8df47dee64cbe75ebb512eff14a91a023b14b9437d910e173b5
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a