Analysis
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max time kernel
150s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240221-en -
resource tags
arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system -
submitted
25/02/2024, 06:27
Static task
static1
Behavioral task
behavioral1
Sample
a31bada21fe1534531c065bde9f789f8.exe
Resource
win7-20240221-en
General
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Target
a31bada21fe1534531c065bde9f789f8.exe
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Size
95KB
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MD5
a31bada21fe1534531c065bde9f789f8
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SHA1
8843e2a81e47c5666f1d3f1e531c9e591dea543e
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SHA256
4b0b477f3376a36b2f7939c30a568069c17a583224e69ffa63e21e748955acfe
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SHA512
525dc5d5f865f3d6aa7fca2613ea8925e40a76d4c889d2b3dc39de795fe40a3b46dbc1946f8d511ddf7d3fb0d1151547a4aa064a5187dc91e567458b9838aa73
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SSDEEP
1536:QY5lAPkj6ri16pxNeRaNAj0yf+/2rlYlS+oqxYxBzHS82G5E8k8jwaaHw7Koj4r3:KkjN1acMAj0dNHxYbS/GFk8jwaaHw7Kw
Malware Config
Signatures
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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-1-5-21-910440534-423636034-2318342392-1000\Control Panel\International\Geo\Nation a31bada21fe1534531c065bde9f789f8.exe -
Executes dropped EXE 1 IoCs
pid Process 920 rlygiwglewpddwht.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 2 IoCs
pid pid_target Process procid_target 4460 1296 WerFault.exe 84 2504 4508 WerFault.exe 94 -
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\Software\Microsoft\Internet Explorer\DomainSuggestion IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff3e0000003e000000c4040000a3020000 IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31090611" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3242199558" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31090611" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3239699610" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3442981277" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{ECC10937-D3A6-11EE-B8F3-D6914DCA6422} = "0" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "415607413" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3239699610" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31090611" IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31090611" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-910440534-423636034-2318342392-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\"" IEXPLORE.EXE -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 656 Process not Found -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeSecurityPrivilege 384 a31bada21fe1534531c065bde9f789f8.exe Token: SeDebugPrivilege 384 a31bada21fe1534531c065bde9f789f8.exe Token: SeSecurityPrivilege 920 rlygiwglewpddwht.exe Token: SeLoadDriverPrivilege 920 rlygiwglewpddwht.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1184 IEXPLORE.EXE 1184 IEXPLORE.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 1184 IEXPLORE.EXE 1184 IEXPLORE.EXE 3692 IEXPLORE.EXE 3692 IEXPLORE.EXE 3692 IEXPLORE.EXE 3692 IEXPLORE.EXE 1184 IEXPLORE.EXE 1184 IEXPLORE.EXE 1932 IEXPLORE.EXE 1932 IEXPLORE.EXE 1932 IEXPLORE.EXE 1932 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 37 IoCs
description pid Process procid_target PID 384 wrote to memory of 1296 384 a31bada21fe1534531c065bde9f789f8.exe 84 PID 384 wrote to memory of 1296 384 a31bada21fe1534531c065bde9f789f8.exe 84 PID 384 wrote to memory of 1296 384 a31bada21fe1534531c065bde9f789f8.exe 84 PID 384 wrote to memory of 1296 384 a31bada21fe1534531c065bde9f789f8.exe 84 PID 384 wrote to memory of 1296 384 a31bada21fe1534531c065bde9f789f8.exe 84 PID 384 wrote to memory of 1296 384 a31bada21fe1534531c065bde9f789f8.exe 84 PID 384 wrote to memory of 1296 384 a31bada21fe1534531c065bde9f789f8.exe 84 PID 384 wrote to memory of 1296 384 a31bada21fe1534531c065bde9f789f8.exe 84 PID 384 wrote to memory of 1296 384 a31bada21fe1534531c065bde9f789f8.exe 84 PID 384 wrote to memory of 1056 384 a31bada21fe1534531c065bde9f789f8.exe 91 PID 384 wrote to memory of 1056 384 a31bada21fe1534531c065bde9f789f8.exe 91 PID 384 wrote to memory of 1056 384 a31bada21fe1534531c065bde9f789f8.exe 91 PID 1056 wrote to memory of 1184 1056 iexplore.exe 92 PID 1056 wrote to memory of 1184 1056 iexplore.exe 92 PID 1184 wrote to memory of 3692 1184 IEXPLORE.EXE 93 PID 1184 wrote to memory of 3692 1184 IEXPLORE.EXE 93 PID 1184 wrote to memory of 3692 1184 IEXPLORE.EXE 93 PID 384 wrote to memory of 4508 384 a31bada21fe1534531c065bde9f789f8.exe 94 PID 384 wrote to memory of 4508 384 a31bada21fe1534531c065bde9f789f8.exe 94 PID 384 wrote to memory of 4508 384 a31bada21fe1534531c065bde9f789f8.exe 94 PID 384 wrote to memory of 4508 384 a31bada21fe1534531c065bde9f789f8.exe 94 PID 384 wrote to memory of 4508 384 a31bada21fe1534531c065bde9f789f8.exe 94 PID 384 wrote to memory of 4508 384 a31bada21fe1534531c065bde9f789f8.exe 94 PID 384 wrote to memory of 4508 384 a31bada21fe1534531c065bde9f789f8.exe 94 PID 384 wrote to memory of 4508 384 a31bada21fe1534531c065bde9f789f8.exe 94 PID 384 wrote to memory of 4508 384 a31bada21fe1534531c065bde9f789f8.exe 94 PID 384 wrote to memory of 1748 384 a31bada21fe1534531c065bde9f789f8.exe 99 PID 384 wrote to memory of 1748 384 a31bada21fe1534531c065bde9f789f8.exe 99 PID 384 wrote to memory of 1748 384 a31bada21fe1534531c065bde9f789f8.exe 99 PID 1748 wrote to memory of 2680 1748 iexplore.exe 100 PID 1748 wrote to memory of 2680 1748 iexplore.exe 100 PID 1184 wrote to memory of 1932 1184 IEXPLORE.EXE 101 PID 1184 wrote to memory of 1932 1184 IEXPLORE.EXE 101 PID 1184 wrote to memory of 1932 1184 IEXPLORE.EXE 101 PID 384 wrote to memory of 920 384 a31bada21fe1534531c065bde9f789f8.exe 104 PID 384 wrote to memory of 920 384 a31bada21fe1534531c065bde9f789f8.exe 104 PID 384 wrote to memory of 920 384 a31bada21fe1534531c065bde9f789f8.exe 104
Processes
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C:\Users\Admin\AppData\Local\Temp\a31bada21fe1534531c065bde9f789f8.exe"C:\Users\Admin\AppData\Local\Temp\a31bada21fe1534531c065bde9f789f8.exe"1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:384 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe2⤵PID:1296
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1296 -s 2083⤵
- Program crash
PID:4460
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C:\Program Files (x86)\Internet Explorer\iexplore.exe"C:\Program Files (x86)\Internet Explorer\iexplore.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:1056 -
C:\Program Files\Internet Explorer\IEXPLORE.EXE"C:\Program Files\Internet Explorer\IEXPLORE.EXE"3⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1184 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1184 CREDAT:17410 /prefetch:24⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:3692
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C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1184 CREDAT:17416 /prefetch:24⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1932
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C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe2⤵PID:4508
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4508 -s 2123⤵
- Program crash
PID:2504
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C:\Program Files (x86)\Internet Explorer\iexplore.exe"C:\Program Files (x86)\Internet Explorer\iexplore.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:1748 -
C:\Program Files\Internet Explorer\IEXPLORE.EXE"C:\Program Files\Internet Explorer\IEXPLORE.EXE"3⤵
- Modifies Internet Explorer settings
PID:2680
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C:\Users\Admin\AppData\Local\Temp\rlygiwglewpddwht.exe"C:\Users\Admin\AppData\Local\Temp\rlygiwglewpddwht.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:920
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1296 -ip 12961⤵PID:1640
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4508 -ip 45081⤵PID:3872
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
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Filesize
95KB
MD5a31bada21fe1534531c065bde9f789f8
SHA18843e2a81e47c5666f1d3f1e531c9e591dea543e
SHA2564b0b477f3376a36b2f7939c30a568069c17a583224e69ffa63e21e748955acfe
SHA512525dc5d5f865f3d6aa7fca2613ea8925e40a76d4c889d2b3dc39de795fe40a3b46dbc1946f8d511ddf7d3fb0d1151547a4aa064a5187dc91e567458b9838aa73