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Analysis
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max time kernel
142s -
max time network
158s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
27/01/2024, 19:37
Behavioral task
behavioral1
Sample
7b19f0775f2d0614c20e7a00f2eec61b.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
7b19f0775f2d0614c20e7a00f2eec61b.exe
Resource
win10v2004-20231215-en
General
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Target
7b19f0775f2d0614c20e7a00f2eec61b.exe
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Size
27KB
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MD5
7b19f0775f2d0614c20e7a00f2eec61b
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SHA1
1998cb1c40978df979e41cedeed0d7e057fdfb20
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SHA256
b8001fa7feb004a014da2051b5059bc1ea25f5c0d9fed5add8b064614881a1b6
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SHA512
aa7437f12b3d70b537a1ec17de6737e24d98548139147b505507431b95d6751fbfa72179b2a14ab7d1268419fdbbc04a75fedeb8be72f0d2d8340df09d81b7d7
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SSDEEP
384:AmmBX9UBSJWGe6cL1mlZg9hhiU4z6P1pU89/dNQCKCP4DCYAN+Hn:AmmBX9UBSEJmA9hhiUJzS4gDXk+H
Malware Config
Signatures
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resource yara_rule behavioral2/memory/4960-0-0x0000000000400000-0x0000000000415000-memory.dmp upx behavioral2/memory/4960-3-0x0000000000400000-0x0000000000415000-memory.dmp upx -
Drops file in System32 directory 3 IoCs
description ioc Process File created C:\Windows\SysWOW64\ntnids32.exe 7b19f0775f2d0614c20e7a00f2eec61b.exe File opened for modification C:\Windows\SysWOW64\ntnids32.exe 7b19f0775f2d0614c20e7a00f2eec61b.exe File created C:\Windows\SysWOW64\ntnids32.dll 7b19f0775f2d0614c20e7a00f2eec61b.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\DomainSuggestion IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{A1B41BEB-BD4B-11EE-9A4E-76CF25FE979C} = "0" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\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 Key created \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31084888" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1982905015" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31084888" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "413149278" IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31084888" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1992437275" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1982905015" IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" IEXPLORE.EXE -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 4960 7b19f0775f2d0614c20e7a00f2eec61b.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1916 IEXPLORE.EXE -
Suspicious use of SetWindowsHookEx 9 IoCs
pid Process 4960 7b19f0775f2d0614c20e7a00f2eec61b.exe 4960 7b19f0775f2d0614c20e7a00f2eec61b.exe 4960 7b19f0775f2d0614c20e7a00f2eec61b.exe 1916 IEXPLORE.EXE 1916 IEXPLORE.EXE 4800 IEXPLORE.EXE 4800 IEXPLORE.EXE 4800 IEXPLORE.EXE 4800 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 4960 wrote to memory of 1916 4960 7b19f0775f2d0614c20e7a00f2eec61b.exe 89 PID 4960 wrote to memory of 1916 4960 7b19f0775f2d0614c20e7a00f2eec61b.exe 89 PID 1916 wrote to memory of 4800 1916 IEXPLORE.EXE 90 PID 1916 wrote to memory of 4800 1916 IEXPLORE.EXE 90 PID 1916 wrote to memory of 4800 1916 IEXPLORE.EXE 90 PID 4960 wrote to memory of 1916 4960 7b19f0775f2d0614c20e7a00f2eec61b.exe 89 PID 4960 wrote to memory of 2008 4960 7b19f0775f2d0614c20e7a00f2eec61b.exe 91 PID 4960 wrote to memory of 2008 4960 7b19f0775f2d0614c20e7a00f2eec61b.exe 91 PID 4960 wrote to memory of 2008 4960 7b19f0775f2d0614c20e7a00f2eec61b.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\7b19f0775f2d0614c20e7a00f2eec61b.exe"C:\Users\Admin\AppData\Local\Temp\7b19f0775f2d0614c20e7a00f2eec61b.exe"1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4960 -
C:\Program Files\Internet Explorer\IEXPLORE.EXE"C:\Program Files\Internet Explorer\IEXPLORE.EXE"2⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1916 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1916 CREDAT:17410 /prefetch:23⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:4800
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\7B19F0~1.EXE > nul2⤵PID:2008
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize471B
MD555adff48fbcd7763c70a0d51d485d24f
SHA18ba66cb09d8e16d22c35931083d443155d3a04fa
SHA256801c05af90120efdf31e4dfdcc5e7f2b76b9ca0e0746f58fdf12bf99287d8aca
SHA512a3151d562469fd2412c237bb5646bb214a9a9f8664be4eb48fdf704d9710872e41947669f770ac74d9d1eb5d6ea5953e40cc5a85d57e56fc82708341154eee7b
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize404B
MD52a7714ed33f11acfca3c33d29021e95d
SHA1bb25200383c48df00e28322e6fae0aa8d0c0bc59
SHA256ab24dc157ee8b74e3e200e926827f203840884b0c445c98ded7ef12a3621e87e
SHA512d17ddc6d9919fd2a866e761079afdc6b9ce84de1ff0eefc69b74a78b6e5cc0f068d17818d8b11b4b1d634c3c4d26bdb471cb9b5a06211a9e855f9893dae689d5
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee