Analysis
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max time kernel
143s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
02/12/2022, 18:21
Static task
static1
Behavioral task
behavioral1
Sample
3166a43363ca21ed7d3d5ebe4b13b11c.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
3166a43363ca21ed7d3d5ebe4b13b11c.exe
Resource
win10v2004-20220812-en
General
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Target
3166a43363ca21ed7d3d5ebe4b13b11c.exe
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Size
706KB
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MD5
3166a43363ca21ed7d3d5ebe4b13b11c
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SHA1
7a32d8d9b9eddea5f9e2373046a017392ee1e437
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SHA256
b990ed5485491482b2c8ee144a2fa5998aaa8fc5575b0ed740e85c40d750721b
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SHA512
30203af4c2b6d26aa7dcbb6c02fd0e37d988c20770458d27f4f4cb45ec6ad86a0108b5bb4d1e8a5140aa4e45a8b652f902e062b5e846d9374a55f9d35c516746
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SSDEEP
12288:ErvDTpeBV+vwiW3jvOnFbngFlH0dhPJWPazkalKmpsNmzszBN1iX11R:ETBeBwS3jOZgPUdhPCPalpssQzBN10nR
Malware Config
Extracted
djvu
http://fresherlights.com/test1/get.php
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extension
.kcvp
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offline_id
hlqzhQ6w5SquNDF4Ul2XBDJQkSIKbAT6rmRBTit1
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payload_url
http://uaery.top/dl/build2.exe
http://fresherlights.com/files/1/build3.exe
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ransomnote
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Extracted
vidar
56
517
https://t.me/asifrazatg
https://steamcommunity.com/profiles/76561199439929669
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profile_id
517
Signatures
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Detected Djvu ransomware 9 IoCs
resource yara_rule behavioral2/memory/2120-133-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2120-135-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/896-136-0x0000000002670000-0x000000000278B000-memory.dmp family_djvu behavioral2/memory/2120-137-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2120-138-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2120-142-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2488-145-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2488-147-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral2/memory/2488-148-0x0000000000400000-0x0000000000537000-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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Executes dropped EXE 3 IoCs
pid Process 4120 build2.exe 4248 build2.exe 3992 build3.exe -
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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation 3166a43363ca21ed7d3d5ebe4b13b11c.exe Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation 3166a43363ca21ed7d3d5ebe4b13b11c.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 4832 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\6e658884-e31f-41e8-b98e-b314aae8f11f\\3166a43363ca21ed7d3d5ebe4b13b11c.exe\" --AutoStart" 3166a43363ca21ed7d3d5ebe4b13b11c.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 4 api.2ip.ua 42 api.2ip.ua 3 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 896 set thread context of 2120 896 3166a43363ca21ed7d3d5ebe4b13b11c.exe 79 PID 1604 set thread context of 2488 1604 3166a43363ca21ed7d3d5ebe4b13b11c.exe 85 PID 4120 set thread context of 4248 4120 build2.exe 87 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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description ioc Process Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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 3166a43363ca21ed7d3d5ebe4b13b11c.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349 3166a43363ca21ed7d3d5ebe4b13b11c.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2120 3166a43363ca21ed7d3d5ebe4b13b11c.exe 2120 3166a43363ca21ed7d3d5ebe4b13b11c.exe 2488 3166a43363ca21ed7d3d5ebe4b13b11c.exe 2488 3166a43363ca21ed7d3d5ebe4b13b11c.exe -
Suspicious use of WriteProcessMemory 41 IoCs
description pid Process procid_target PID 896 wrote to memory of 2120 896 3166a43363ca21ed7d3d5ebe4b13b11c.exe 79 PID 896 wrote to memory of 2120 896 3166a43363ca21ed7d3d5ebe4b13b11c.exe 79 PID 896 wrote to memory of 2120 896 3166a43363ca21ed7d3d5ebe4b13b11c.exe 79 PID 896 wrote to memory of 2120 896 3166a43363ca21ed7d3d5ebe4b13b11c.exe 79 PID 896 wrote to memory of 2120 896 3166a43363ca21ed7d3d5ebe4b13b11c.exe 79 PID 896 wrote to memory of 2120 896 3166a43363ca21ed7d3d5ebe4b13b11c.exe 79 PID 896 wrote to memory of 2120 896 3166a43363ca21ed7d3d5ebe4b13b11c.exe 79 PID 896 wrote to memory of 2120 896 3166a43363ca21ed7d3d5ebe4b13b11c.exe 79 PID 896 wrote to memory of 2120 896 3166a43363ca21ed7d3d5ebe4b13b11c.exe 79 PID 896 wrote to memory of 2120 896 3166a43363ca21ed7d3d5ebe4b13b11c.exe 79 PID 2120 wrote to memory of 4832 2120 3166a43363ca21ed7d3d5ebe4b13b11c.exe 82 PID 2120 wrote to memory of 4832 2120 3166a43363ca21ed7d3d5ebe4b13b11c.exe 82 PID 2120 wrote to memory of 4832 2120 3166a43363ca21ed7d3d5ebe4b13b11c.exe 82 PID 2120 wrote to memory of 1604 2120 3166a43363ca21ed7d3d5ebe4b13b11c.exe 83 PID 2120 wrote to memory of 1604 2120 3166a43363ca21ed7d3d5ebe4b13b11c.exe 83 PID 2120 wrote to memory of 1604 2120 3166a43363ca21ed7d3d5ebe4b13b11c.exe 83 PID 1604 wrote to memory of 2488 1604 3166a43363ca21ed7d3d5ebe4b13b11c.exe 85 PID 1604 wrote to memory of 2488 1604 3166a43363ca21ed7d3d5ebe4b13b11c.exe 85 PID 1604 wrote to memory of 2488 1604 3166a43363ca21ed7d3d5ebe4b13b11c.exe 85 PID 1604 wrote to memory of 2488 1604 3166a43363ca21ed7d3d5ebe4b13b11c.exe 85 PID 1604 wrote to memory of 2488 1604 3166a43363ca21ed7d3d5ebe4b13b11c.exe 85 PID 1604 wrote to memory of 2488 1604 3166a43363ca21ed7d3d5ebe4b13b11c.exe 85 PID 1604 wrote to memory of 2488 1604 3166a43363ca21ed7d3d5ebe4b13b11c.exe 85 PID 1604 wrote to memory of 2488 1604 3166a43363ca21ed7d3d5ebe4b13b11c.exe 85 PID 1604 wrote to memory of 2488 1604 3166a43363ca21ed7d3d5ebe4b13b11c.exe 85 PID 1604 wrote to memory of 2488 1604 3166a43363ca21ed7d3d5ebe4b13b11c.exe 85 PID 2488 wrote to memory of 4120 2488 3166a43363ca21ed7d3d5ebe4b13b11c.exe 86 PID 2488 wrote to memory of 4120 2488 3166a43363ca21ed7d3d5ebe4b13b11c.exe 86 PID 2488 wrote to memory of 4120 2488 3166a43363ca21ed7d3d5ebe4b13b11c.exe 86 PID 4120 wrote to memory of 4248 4120 build2.exe 87 PID 4120 wrote to memory of 4248 4120 build2.exe 87 PID 4120 wrote to memory of 4248 4120 build2.exe 87 PID 4120 wrote to memory of 4248 4120 build2.exe 87 PID 4120 wrote to memory of 4248 4120 build2.exe 87 PID 4120 wrote to memory of 4248 4120 build2.exe 87 PID 4120 wrote to memory of 4248 4120 build2.exe 87 PID 4120 wrote to memory of 4248 4120 build2.exe 87 PID 4120 wrote to memory of 4248 4120 build2.exe 87 PID 2488 wrote to memory of 3992 2488 3166a43363ca21ed7d3d5ebe4b13b11c.exe 91 PID 2488 wrote to memory of 3992 2488 3166a43363ca21ed7d3d5ebe4b13b11c.exe 91 PID 2488 wrote to memory of 3992 2488 3166a43363ca21ed7d3d5ebe4b13b11c.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\3166a43363ca21ed7d3d5ebe4b13b11c.exe"C:\Users\Admin\AppData\Local\Temp\3166a43363ca21ed7d3d5ebe4b13b11c.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:896 -
C:\Users\Admin\AppData\Local\Temp\3166a43363ca21ed7d3d5ebe4b13b11c.exe"C:\Users\Admin\AppData\Local\Temp\3166a43363ca21ed7d3d5ebe4b13b11c.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2120 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\6e658884-e31f-41e8-b98e-b314aae8f11f" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:4832
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C:\Users\Admin\AppData\Local\Temp\3166a43363ca21ed7d3d5ebe4b13b11c.exe"C:\Users\Admin\AppData\Local\Temp\3166a43363ca21ed7d3d5ebe4b13b11c.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1604 -
C:\Users\Admin\AppData\Local\Temp\3166a43363ca21ed7d3d5ebe4b13b11c.exe"C:\Users\Admin\AppData\Local\Temp\3166a43363ca21ed7d3d5ebe4b13b11c.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Checks computer location settings
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2488 -
C:\Users\Admin\AppData\Local\0e0fb2d3-8f99-46f4-bf61-9f71451cf3d5\build2.exe"C:\Users\Admin\AppData\Local\0e0fb2d3-8f99-46f4-bf61-9f71451cf3d5\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4120 -
C:\Users\Admin\AppData\Local\0e0fb2d3-8f99-46f4-bf61-9f71451cf3d5\build2.exe"C:\Users\Admin\AppData\Local\0e0fb2d3-8f99-46f4-bf61-9f71451cf3d5\build2.exe"6⤵
- Executes dropped EXE
PID:4248
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C:\Users\Admin\AppData\Local\0e0fb2d3-8f99-46f4-bf61-9f71451cf3d5\build3.exe"C:\Users\Admin\AppData\Local\0e0fb2d3-8f99-46f4-bf61-9f71451cf3d5\build3.exe"5⤵
- Executes dropped EXE
PID:3992
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize2KB
MD561ffe15234088bd43d27e9eb101ad1f6
SHA180e8cf2dbbf66018e148cbab446cfc5e52eed1b2
SHA2561dc492a98f81cf0473e5ebc17c9284892b88c592b5194c31761a1ef1985c59b5
SHA512f925dbd2d421bc596f344241ce915b69e8f9a5112f4b9d6e62c82a717493ce2422366395dea33dfce896704b940afd6366923a7a2eb476d10563bc76de15b61d
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize488B
MD54f278b180dbc109f73372bc99e8b7317
SHA1326de622911d0c7a359da8e9779cce0065d2c283
SHA2565aba9ccbdda3ac6a9fdb0da036d934e1914a4ee49f37f2bdd4c559798672f3ab
SHA512ca4f04fc43103640d2ba76e1c69fc4207b71c4aa0828117446a21892f841d48aee98ec93fbc7c4fbdb65621650f398eebcfcca72a8dac4cf04e205f9dcce01c4
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Filesize
258KB
MD5b9212ded69fae1fa1fb5d6db46a9fb76
SHA158face4245646b1cd379ee49f03a701eab1642be
SHA2567a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f
SHA51209cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342
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Filesize
258KB
MD5b9212ded69fae1fa1fb5d6db46a9fb76
SHA158face4245646b1cd379ee49f03a701eab1642be
SHA2567a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f
SHA51209cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342
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Filesize
258KB
MD5b9212ded69fae1fa1fb5d6db46a9fb76
SHA158face4245646b1cd379ee49f03a701eab1642be
SHA2567a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f
SHA51209cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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C:\Users\Admin\AppData\Local\6e658884-e31f-41e8-b98e-b314aae8f11f\3166a43363ca21ed7d3d5ebe4b13b11c.exe
Filesize706KB
MD53166a43363ca21ed7d3d5ebe4b13b11c
SHA17a32d8d9b9eddea5f9e2373046a017392ee1e437
SHA256b990ed5485491482b2c8ee144a2fa5998aaa8fc5575b0ed740e85c40d750721b
SHA51230203af4c2b6d26aa7dcbb6c02fd0e37d988c20770458d27f4f4cb45ec6ad86a0108b5bb4d1e8a5140aa4e45a8b652f902e062b5e846d9374a55f9d35c516746