Analysis
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max time kernel
1s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
31-12-2023 22:42
Static task
static1
Behavioral task
behavioral1
Sample
e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe
Resource
win10-20231220-en
Behavioral task
behavioral3
Sample
e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral4
Sample
e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe
Resource
win11-20231215-en
General
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Target
e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe
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Size
690KB
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MD5
36172786193e5f7a14f53d687ff81193
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SHA1
c000948357737a3efa4d141e4bb7439aed41abb5
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SHA256
e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2
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SHA512
e9fc808b1b48aab02aad0574bbb71b8d4815a19a0c03009e9c5e2bcedfc6320ffaa8aa040fc1562aa8be5ac2d19d9a5c44b8344147af0236ad2ce54bc5e2c12e
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SSDEEP
12288:PQ4Hnb0GvoG5VfM93lbDOKOoRjDgptHZQ8er2wieqcgqAwXEppmubS:o6nIGvoMVwOKjtgpt6BVJAwEpI
Malware Config
Extracted
djvu
http://zexeq.com/test1/get.php
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extension
.cdqw
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offline_id
mMsRxMUuXypapZbGOAfxD9pczHmW8zVRP7Pgjwt1
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payload_url
http://brusuax.com/dl/build2.exe
http://zexeq.com/files/1/build3.exe
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ransomnote
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Signatures
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Detect Vidar Stealer 6 IoCs
resource yara_rule behavioral3/memory/2868-56-0x0000000000400000-0x000000000063D000-memory.dmp family_vidar_v6 behavioral3/memory/2724-60-0x0000000000AC0000-0x0000000000AEA000-memory.dmp family_vidar_v6 behavioral3/memory/2868-62-0x0000000000400000-0x000000000063D000-memory.dmp family_vidar_v6 behavioral3/memory/2868-61-0x0000000000400000-0x000000000063D000-memory.dmp family_vidar_v6 behavioral3/memory/2868-80-0x0000000000400000-0x000000000063D000-memory.dmp family_vidar_v6 behavioral3/memory/2868-81-0x0000000000400000-0x000000000063D000-memory.dmp family_vidar_v6 -
Detected Djvu ransomware 15 IoCs
resource yara_rule behavioral3/memory/2428-5-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral3/memory/2428-6-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral3/memory/2428-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral3/memory/2428-3-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral3/memory/2844-2-0x00000000026F0000-0x000000000280B000-memory.dmp family_djvu behavioral3/memory/2428-19-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral3/memory/1620-25-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral3/memory/1620-26-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral3/memory/1620-24-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral3/memory/1620-34-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral3/memory/1620-33-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral3/memory/1620-40-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral3/memory/1620-41-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral3/memory/1620-38-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral3/memory/1620-75-0x0000000000400000-0x0000000000537000-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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Modifies file permissions 1 TTPs 1 IoCs
pid Process 1160 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\03e4e629-603b-46e2-be8f-0c72ba4a50d5\\e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe\" --AutoStart" e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.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 8 api.2ip.ua 9 api.2ip.ua 29 api.2ip.ua -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2844 set thread context of 2428 2844 e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe 19 -
Program crash 1 IoCs
pid pid_target Process procid_target 4348 2868 WerFault.exe 108 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4784 schtasks.exe 3620 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2428 e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe 2428 e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 2844 wrote to memory of 2428 2844 e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe 19 PID 2844 wrote to memory of 2428 2844 e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe 19 PID 2844 wrote to memory of 2428 2844 e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe 19 PID 2844 wrote to memory of 2428 2844 e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe 19 PID 2844 wrote to memory of 2428 2844 e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe 19 PID 2844 wrote to memory of 2428 2844 e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe 19 PID 2844 wrote to memory of 2428 2844 e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe 19 PID 2844 wrote to memory of 2428 2844 e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe 19 PID 2844 wrote to memory of 2428 2844 e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe 19 PID 2844 wrote to memory of 2428 2844 e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe 19 PID 2428 wrote to memory of 1160 2428 e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe 43 PID 2428 wrote to memory of 1160 2428 e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe 43 PID 2428 wrote to memory of 1160 2428 e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe 43
Processes
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C:\Users\Admin\AppData\Local\Temp\e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe"C:\Users\Admin\AppData\Local\Temp\e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2844 -
C:\Users\Admin\AppData\Local\Temp\e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe"C:\Users\Admin\AppData\Local\Temp\e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2428 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\03e4e629-603b-46e2-be8f-0c72ba4a50d5" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:1160
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C:\Users\Admin\AppData\Local\Temp\e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe"C:\Users\Admin\AppData\Local\Temp\e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe" --Admin IsNotAutoStart IsNotTask3⤵PID:1864
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C:\Users\Admin\AppData\Local\Temp\e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe"C:\Users\Admin\AppData\Local\Temp\e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe" --Admin IsNotAutoStart IsNotTask1⤵PID:1620
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C:\Users\Admin\AppData\Local\72350ab9-7321-4100-bc2e-09e1bb37f186\build2.exe"C:\Users\Admin\AppData\Local\72350ab9-7321-4100-bc2e-09e1bb37f186\build2.exe"2⤵PID:2724
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C:\Users\Admin\AppData\Local\72350ab9-7321-4100-bc2e-09e1bb37f186\build2.exe"C:\Users\Admin\AppData\Local\72350ab9-7321-4100-bc2e-09e1bb37f186\build2.exe"3⤵PID:2868
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2868 -s 20404⤵
- Program crash
PID:4348
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C:\Users\Admin\AppData\Local\72350ab9-7321-4100-bc2e-09e1bb37f186\build3.exe"C:\Users\Admin\AppData\Local\72350ab9-7321-4100-bc2e-09e1bb37f186\build3.exe"2⤵PID:636
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C:\Users\Admin\AppData\Local\72350ab9-7321-4100-bc2e-09e1bb37f186\build3.exe"C:\Users\Admin\AppData\Local\72350ab9-7321-4100-bc2e-09e1bb37f186\build3.exe"3⤵PID:1820
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2868 -ip 28681⤵PID:224
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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"1⤵
- Creates scheduled task(s)
PID:4784
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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exeC:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe1⤵PID:4776
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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exeC:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe2⤵PID:3940
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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"1⤵
- Creates scheduled task(s)
PID:3620
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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exeC:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe1⤵PID:1968
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
MD5066f25f02e2b2ee2af54544028f9dd37
SHA19167983ad24f65c762b7622a8f43e8a218cd72b5
SHA256b208bbc90869834e2fe53ae058b5ab6c200f5c5a00d8b536989f65071568be8c
SHA512d79e1b28bae5f2026cbc142aa0ee78552d20b477ef507b12ba36f1522c7be1b20b4d0e218a3755537d5610ef0852744e673149944f8b337ace006280e71c2beb
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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
MD530b437886db3915d345d2266cb989a83
SHA115cad5dffad504aa3d82efda3a1f7df6fb3231a3
SHA2568073ebcd565bea993af43d8ab063d8f80a18a19751f7385a44f1626c539bf2bb
SHA5122994a06789461c1103c1db6799258ddddb6ebf46a5995d28f38b504b4060a288242e48cfb3d39b760b9b3a560eab36586e62dd8fa017e629b3995b880f458e81
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize392B
MD5357d9caf437c34d140146ed8e4e4f5aa
SHA1f069b3fe94fc133308fa0bd023ef602f8af470e4
SHA256b571c9167f19f95f29631db1ffd384557513b9b2dfed2d5fbacf6ef054309624
SHA512763bccb406e1927310a4a0827d21810e2eed243c8fb3e235a0f366c7909460c7cb629b8aa81c197b321a4e3333a65262304481cadf45349d78e0219bba80eed5
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C:\Users\Admin\AppData\Local\03e4e629-603b-46e2-be8f-0c72ba4a50d5\e563dee44c2d5803f03a22ba355734ca5729e6ea8a1a15ee0d1212280150ada2.exe
Filesize42KB
MD5bd2902cd4c121e57b162a80f2aa6fd5b
SHA190dd0b90db350921ce878685146d5a9ea2d37564
SHA256af92f1f9780fe84af302989117a3376003ac6c82d5e16f5650a876ee7d0f6a5f
SHA512d488ea020eb449e837da264da6b13e4f093276f7ebdd9ff763b1dfee0877a32c6c3ae8e8284bad9ef504e1d9507450955256358f95e5d1936759b83ba28c059b
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Filesize
8KB
MD5f4effaf47608341ac2c559179e626fa7
SHA1a98100a112433a7c28da78a1a676a6911e5d5484
SHA256926b480cea596b51530362aa9cf028e9adcb8d12b8b87e90f8cd0543ec8a3444
SHA512ad92f11aff655f65b067514e196a67c20ae1b53df4bb67318fd41ddbb54236b0dc400c78edf52d6cc9833510069ca7032e1ec90adf8b2073d8c9f24f21e47903
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Filesize
4KB
MD5b57548eac360176afa1d21522e6d2be5
SHA120f7fdd29c49ec52e18c0cd87236b3664aef8ba5
SHA256f324f74b1d4648d5d30b97e0228c0b406c5be2cdff081831afb80fe6a9eed01b
SHA5124deb83a8344bf73abba8c649f5108f42dea66ad9039e6291740b8acf93fdc634edfaeeac16a816f4bcba4cacbd2eac9e9bff5931c4e52fcc084301dc36059daa
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Filesize
4KB
MD5f93acd7b5a3b990dcd43f816e734a09d
SHA1be50cf251c624f81d80b56c69560f8aeef4a42a6
SHA256e242527abf7f93c8d382e4a1874fd32c29fbf13dbe6f6a017b160885986d7e75
SHA512e2ddba645dee962d4693b1f72b912cddfad8604a0f75e922f04bc76b2c73b6219ed87ad18812d386907422c538d9d1272cdd9b8410c7049b633793e9dca092c9
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Filesize
299KB
MD541b883a061c95e9b9cb17d4ca50de770
SHA11daf96ec21d53d9a4699cea9b4db08cda6fbb5ad
SHA256fef2c8ca07c500e416fd7700a381c39899ee26ce1119f62e7c65cf922ce8b408
SHA512cdd1bb3a36182575cd715a52815765161eeaa3849e72c1c2a9a4e84cc43af9f8ec4997e642702bb3de41f162d2e8fd8717f6f8302bba5306821ee4d155626319
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Filesize
24KB
MD5ee4537d5a8269a322c0dee83e55e923d
SHA14c28f57fe6263d162a4075de31fa4830d4a01c65
SHA2565d159988afbd5404db77fb746054a7f64dd512b155486ead0ab5af9d389c3f98
SHA51202931dd65bca023459cd6a3a336eabc72809465582ca1970dc80874f529ed69946b45021f2be8b14ebf3643a5c3928631d8adcdd2b2713d19c3029d51b3d026f
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Filesize
33KB
MD557fc27fe7efc2c60c6026e863c9a2486
SHA11608725e0eaf5d555b8c37689bbf41c6583d7da6
SHA256bd63220b0a73d3c1bc661bfa297398dc6dd225eba4b751b1359a02eb8fed9cfa
SHA51203a4f0fc068c84d6e400d743e2c17bcc784f09e6cb6195dcfd2ffac58b21f642b50b14d37ac0875fc218b3604829634176c0b1ad68d5096324068377449a2f59
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Filesize
8KB
MD574f5af9ea734a6d8da20fdc867d47b1d
SHA1b2e4d15cf1d35619cbc75c599b8cab28453611d5
SHA256cfbbdce0e0af15a110649ca43b3f0f1d7082eae29153d5f1da46da9133106711
SHA512638527a84a13272bc119caefe84168c4dca8677aeba9ad6a70c03da5fc2d8a3e7c4685b27b3e30a7c94eb57b104189e356c37f1b141fc6660201c07a79faba98
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Filesize
30KB
MD5d971d77172d144198ae3ed660512fc9f
SHA11f5ac34895f2ba1493e19708e0845da3ac57df11
SHA2565018b255d88c26d888bd8b104b861807fe504a015f2bd5fc7776d3cbafc753a6
SHA51253c6733a8f109f7038969b3ec9f48f8cbd9610d7259d7aea7717cf014143b67ad1ba88950a89d037914ac844de47892e5e1cd162cddbbde5c22f2ecdae6e12a5