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Analysis
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max time kernel
186s -
max time network
192s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
02/12/2022, 21:48
Static task
static1
Behavioral task
behavioral1
Sample
a6cd0460426685e5e2e7f167213ed0ef85f1a459fbcdbbce12cb448606e28006.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
a6cd0460426685e5e2e7f167213ed0ef85f1a459fbcdbbce12cb448606e28006.exe
Resource
win10v2004-20221111-en
General
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Target
a6cd0460426685e5e2e7f167213ed0ef85f1a459fbcdbbce12cb448606e28006.exe
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Size
581KB
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MD5
e20d4c09701c416b66c779bfe8497254
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SHA1
c4e7db3913340e4f0d9f99d90efd135c0e17411a
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SHA256
a6cd0460426685e5e2e7f167213ed0ef85f1a459fbcdbbce12cb448606e28006
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SHA512
eb1f95206cee3ead8677ed2f1ab7011312adcb6d3926ce1eb78e623ae35354e247a663c17cd843835dc7a61cb82277ac78b778199d598fa5eda5c5c9d83b031d
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SSDEEP
12288:uoMDtCi7NFlZnNqZ9xGrLpZ0ZHEqtgb0Ut:ufplNFgxG5eZngb0S
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
pid Process 4468 nbfile0.exe 1116 nbfile1.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation nbfile1.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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NSIS installer 2 IoCs
resource yara_rule behavioral2/files/0x0006000000022e6d-141.dat nsis_installer_2 behavioral2/files/0x0006000000022e6d-142.dat nsis_installer_2 -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = f073f1c9d908d901 IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\DomainSuggestion IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000eef4ddb70fa9964f8bf69d510f57c1eb00000000020000000000106600000001000020000000459961d2f28bab93e8b5ec89449527ad514f621cd2e5c522712823e5af728666000000000e8000000002000020000000faa7bb27824910c610972fc72bc7034279dd4b21e7c29d5069308847ca73a6422000000037bd932a7f12b980f3c71f3ff8cde08a9b3c83a9f194aca068e6e911f5bcc18b40000000c74c7e2a79b5ddf3ba216c4bb7bb21fb7ba31a8ac0e19730d2ba5f85b8f4d217fde3bc110ef4a6e7d32e31cfd7f768993740f7851bf3d37a94570d9a5adf6167 IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 70911dced908d901 IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{D1E87FB4-74CC-11ED-BF5F-42A3CC74B480} = "0" IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000eef4ddb70fa9964f8bf69d510f57c1eb0000000002000000000010660000000100002000000088cbafeaa83a3ea2a42bd177be4c26cf7a93d5f5798f122343cc906081e2ea50000000000e800000000200002000000002b3aa0737786d37b049b317841f81d44936ad0e470519e32a2e1418ff04240020000000aac6c4007dc8407290a42d89c4c3a41e11e0cd2b1151c246ceb43523f54c3632400000001381ae37784ffc4f4a64f216ab2cb60f4dcab29b6a9888422ce12bcfec4fdf92cd8b57539d60ad457cc3ef4715142ca510ee32e5d58323ce92df2e0cefc42df9 IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "377030862" IEXPLORE.EXE -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings nbfile1.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 4468 nbfile0.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4204 IEXPLORE.EXE -
Suspicious use of SetWindowsHookEx 7 IoCs
pid Process 4468 nbfile0.exe 4204 IEXPLORE.EXE 4204 IEXPLORE.EXE 3532 IEXPLORE.EXE 3532 IEXPLORE.EXE 3532 IEXPLORE.EXE 3532 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 4596 wrote to memory of 4468 4596 a6cd0460426685e5e2e7f167213ed0ef85f1a459fbcdbbce12cb448606e28006.exe 82 PID 4596 wrote to memory of 4468 4596 a6cd0460426685e5e2e7f167213ed0ef85f1a459fbcdbbce12cb448606e28006.exe 82 PID 4596 wrote to memory of 4468 4596 a6cd0460426685e5e2e7f167213ed0ef85f1a459fbcdbbce12cb448606e28006.exe 82 PID 4468 wrote to memory of 4204 4468 nbfile0.exe 83 PID 4468 wrote to memory of 4204 4468 nbfile0.exe 83 PID 4204 wrote to memory of 3532 4204 IEXPLORE.EXE 86 PID 4204 wrote to memory of 3532 4204 IEXPLORE.EXE 86 PID 4204 wrote to memory of 3532 4204 IEXPLORE.EXE 86 PID 4468 wrote to memory of 3624 4468 nbfile0.exe 87 PID 4468 wrote to memory of 3624 4468 nbfile0.exe 87 PID 4468 wrote to memory of 3624 4468 nbfile0.exe 87 PID 4596 wrote to memory of 1116 4596 a6cd0460426685e5e2e7f167213ed0ef85f1a459fbcdbbce12cb448606e28006.exe 88 PID 4596 wrote to memory of 1116 4596 a6cd0460426685e5e2e7f167213ed0ef85f1a459fbcdbbce12cb448606e28006.exe 88 PID 4596 wrote to memory of 1116 4596 a6cd0460426685e5e2e7f167213ed0ef85f1a459fbcdbbce12cb448606e28006.exe 88 PID 1116 wrote to memory of 2020 1116 nbfile1.exe 90 PID 1116 wrote to memory of 2020 1116 nbfile1.exe 90 PID 1116 wrote to memory of 2020 1116 nbfile1.exe 90 PID 1116 wrote to memory of 2700 1116 nbfile1.exe 93 PID 1116 wrote to memory of 2700 1116 nbfile1.exe 93 PID 1116 wrote to memory of 2700 1116 nbfile1.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\a6cd0460426685e5e2e7f167213ed0ef85f1a459fbcdbbce12cb448606e28006.exe"C:\Users\Admin\AppData\Local\Temp\a6cd0460426685e5e2e7f167213ed0ef85f1a459fbcdbbce12cb448606e28006.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4596 -
C:\Users\Admin\AppData\Local\Temp\nbfile0.exeC:\Users\Admin\AppData\Local\Temp\nbfile0.exe2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4468 -
C:\Program Files\Internet Explorer\IEXPLORE.EXE"C:\Program Files\Internet Explorer\IEXPLORE.EXE" http://down.97199.com/install2/?sl33⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4204 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4204 CREDAT:17410 /prefetch:24⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:3532
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\nbfile0.exe3⤵PID:3624
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C:\Users\Admin\AppData\Local\Temp\nbfile1.exeC:\Users\Admin\AppData\Local\Temp\nbfile1.exe2⤵
- Executes dropped EXE
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1116 -
C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\newsetup.vbs"3⤵PID:2020
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\1.vbs"3⤵PID:2700
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
467KB
MD574869a0346ab36bbba85022612505121
SHA12cd02f46f2f9f46eaf15fce40a3bf4781f80cf8a
SHA2566de866b5c8abb1db9b2be231b365c1aa029118fbc58823f443f00e3a33dff18a
SHA512723812083113cff82aa5e2243759c572518865e351cc81b7c2b85a05557862dbbd7a98b964ff6f3aa3802bb5d4dab01a14147211495fc5803d9ddb7b715f4de5
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Filesize
467KB
MD574869a0346ab36bbba85022612505121
SHA12cd02f46f2f9f46eaf15fce40a3bf4781f80cf8a
SHA2566de866b5c8abb1db9b2be231b365c1aa029118fbc58823f443f00e3a33dff18a
SHA512723812083113cff82aa5e2243759c572518865e351cc81b7c2b85a05557862dbbd7a98b964ff6f3aa3802bb5d4dab01a14147211495fc5803d9ddb7b715f4de5
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Filesize
52KB
MD5c4ddf11ebdbf9d8397d710d2cb4e2fab
SHA18008c97e7d6ff92deb3e1755a614f4afedca92b9
SHA25667a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6
SHA5123c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9
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Filesize
52KB
MD5c4ddf11ebdbf9d8397d710d2cb4e2fab
SHA18008c97e7d6ff92deb3e1755a614f4afedca92b9
SHA25667a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6
SHA5123c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9
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Filesize
651B
MD54736e7158c27f244482f5a614b9dbdae
SHA1d3a0e95a81e9e3ec95cfd596b25749a0e24e27b9
SHA256b8229bc8d6b0013858fb9599cb510afa4566a439164b2c7444c449540a124acc
SHA512cebf895dd3ec3822c42b78bac49c685b063cb5afcbcfb3850b073cb118d086c5fa75ec50b6e73d90e14f2c6b595752ad87910b8cf27378424d72a9ea309bf824