767de26092a63a74572e8bf5649059ab8318a41014f6df673af91b7b0170e00a

Analysis

max time kernel
148s
max time network
142s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
10/01/2024, 22:22

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General

Target

51c5dec36eefa488295095d3e08bf3c0.exe
Size

20KB
MD5

51c5dec36eefa488295095d3e08bf3c0
SHA1

5529cfa927535dfcf239689883a13f71bad43416
SHA256

767de26092a63a74572e8bf5649059ab8318a41014f6df673af91b7b0170e00a
SHA512

3eac8bf4ed8f9bbaf03264f71103a4be64d70418be6f28f1d4f87ba90e66b70702cb2bb990b092b549de697112da66170ba59d98e694ebd5610120605f0f3762
SSDEEP

384:cxuQlrR7Mg+nppS8td0u8sC9Bpdf/EenDF/zN/+P6moHbfXIDhsv1:6/xMg+qa0u8rXf8eDFx/+i/HLIli1

Score

7^/10

upx

Malware Config

Signatures

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1912-2-0x0000000000400000-0x0000000000413000-memory.dmp	upx
behavioral1/memory/1912-0-0x0000000000400000-0x0000000000413000-memory.dmp	upx

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\server.exe	51c5dec36eefa488295095d3e08bf3c0.exe
File opened for modification	C:\Windows\SysWOW64\server.exe	51c5dec36eefa488295095d3e08bf3c0.exe

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\SearchScopes\{0633EE93-D776-472f-A0FF-E1416B8B2E3A}	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "2"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{C7C57921-B006-11EE-834F-6AA5205CD920} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\SearchScopes	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "411087246"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\SearchScopes\{0633EE93-D776-472f-A0FF-E1416B8B2E3A}\FaviconPath = "C:\\Users\\Admin\\AppData\\LocalLow\\Microsoft\\Internet Explorer\\Services\\search_{0633EE93-D776-472f-A0FF-E1416B8B2E3A}.ico"	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3004	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3004	iexplore.exe
3004	iexplore.exe
1696	IEXPLORE.EXE
1696	IEXPLORE.EXE
1696	IEXPLORE.EXE
1696	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1912 wrote to memory of 3004	1912	51c5dec36eefa488295095d3e08bf3c0.exe	17
PID 1912 wrote to memory of 3004	1912	51c5dec36eefa488295095d3e08bf3c0.exe	17
PID 1912 wrote to memory of 3004	1912	51c5dec36eefa488295095d3e08bf3c0.exe	17
PID 1912 wrote to memory of 3004	1912	51c5dec36eefa488295095d3e08bf3c0.exe	17
PID 3004 wrote to memory of 1696	3004	iexplore.exe	16
PID 3004 wrote to memory of 1696	3004	iexplore.exe	16
PID 3004 wrote to memory of 1696	3004	iexplore.exe	16
PID 3004 wrote to memory of 1696	3004	iexplore.exe	16

C:\Users\Admin\AppData\Local\Temp\51c5dec36eefa488295095d3e08bf3c0.exe
"C:\Users\Admin\AppData\Local\Temp\51c5dec36eefa488295095d3e08bf3c0.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1912
- C:\Program Files\Internet Explorer\iexplore.exe
  C:\Users\Admin\AppData\Local\Temp\51c5dec36eefa488295095d3e08bf3c0.exe
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3004

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3004 CREDAT:275457 /prefetch:2
1⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1696

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3C428B1A3E5F57D887EC4B864FAC5DCC

Filesize
914B

MD5
e4a68ac854ac5242460afd72481b2a44

SHA1
df3c24f9bfd666761b268073fe06d1cc8d4f82a4

SHA256
cb3ccbb76031e5e0138f8dd39a23f9de47ffc35e43c1144cea27d46a5ab1cb5f

SHA512
5622207e1ba285f172756f6019af92ac808ed63286e24dfecc1e79873fb5d140f1ceb7133f2476e89a5f75f711f9813a9fbb8fd5287f64adfdcc53b864f9bdc5

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357

Filesize
1KB

MD5
a266bb7dcc38a562631361bbf61dd11b

SHA1
3b1efd3a66ea28b16697394703a72ca340a05bd5

SHA256
df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

SHA512
0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3C428B1A3E5F57D887EC4B864FAC5DCC

Filesize
252B

MD5
ac9f2afd1aa58bcc6ebc4e85c8c9f80c

SHA1
b8c146a9e30f142b7e2e262d699cddf851a9a2c2

SHA256
3f7fe59073628e5291a3cd74b24060fccc1571232122fc472bad62cfd0cd7937

SHA512
78576d7ad6ec3307f9fe65b6bda7c2545f6bbcc72f1ded5670fc4192a55141d31d5c8f8f074d55b4219e076e59f7a99191e9dc5cdb3730e3f8e4ad74db6afeaf

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
3e489f9686eb1b845f051cf518b81d28

SHA1
e66ff5d5992f3446977bc249985fe5081e964141

SHA256
7ecd47d69e627746d437a08dd788f4ac07d4cbe72ecfb6acd804c9a1a046ec43

SHA512
a1961b181d8e2cba52737c69ff48216cccece3ab8882f75a08abe988fbfca60c55bff9f58bb47f107811032c179f99fe3ed26fc57d358b687424afd2e82579d6

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
f6799109e5bb086b9cfc5e7e141ab430

SHA1
ee41ee4ade452661f89be1887dcc62e11ce5a366

SHA256
c33dc4280baa589335e45237a02c2a045588a86faf044ca3a39dffea7f2de257

SHA512
fa8e301b05247a73a733675c0c6f766a8420433b5cdc607dea9e4ffe2a646075f65d103075bf1c78d58995ad3249f546bd2297250038a54f294455a3ab6a298f

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
5e1d8ec6f91abad6290acaadaa4045fa

SHA1
601bdb75be0dc7fbadad952c297affa1d948073d

SHA256
ae9ccfb9ad3d3423ab6d647614f6349a23789bd51b70e1bf981e567519de1b1d

SHA512
fdc8bf01909db7b35963bf7a29c96b9aaf63abbdd4b76b5b4236d1893a2f92e678924c2c0246c37c659a693ffd4c69f00ab63c598da9905af64983302df586d5

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
83d89600abe69fab6b3fa75f3ecd2f74

SHA1
492df5226f6c7d61d1cba9c7f48f441c5f0a40e7

SHA256
74eba1f0f7b2f6cf7ff4c4c8efbb05817d1f20219779dfbbb31f14a6a257f608

SHA512
0f6294541af38b379bcfadbf2c02aeeeac6569c9190a83c71f1db9e86a2b3f3c783d42a8c5c64e701ee20862711849cd1d90dd0f5889ddd648261ce0079917f1

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
de33cd1eb1d4bff9435a8c6394a6ffd9

SHA1
dbe4b488ad12a1f2604605faca09ca014f5b16c8

SHA256
76d0430374a7cf2d2f5de0751e5c1e892c3a813b38dfc0eb953c28565f125932

SHA512
5a074c451d5787cd8ca0b790a47f26c004bd2643d83ec4fa3bf08032be073ec412e06e125611643b2fe0d3ccf3d0c447a5dbf4f25695b62e6fd9ea2cc6ffa052

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
3b9d2cda73251dcfb02ae85ad52144cf

SHA1
000a0c2646c2796b98a5b6cd167166f24413ff24

SHA256
2f71536feb914f4690e7a35550ec90d1675e6b6c037bba92f84c3e6e362fe983

SHA512
3a9ddbebdafd5b91d6920f55c254bd2e36b930a98fcfe1c32a236a88550391be63c50593f0d969f4e94d3df0ae4687459c38485495d84b961377e02eebaa4701

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357

Filesize
242B

MD5
425530b0d229a077db414391fc5f2546

SHA1
677f28ae1f03c8aabd521facb2857ecccf119ba5

SHA256
c6bdec3eb8ef8608f362d07cce8dfa197d15618a5b1ae6a9fcfea2018797ace3

SHA512
e7c764c76d1503600505de24c570e308df5073058863b63213b0e7326fb4f00b20e5a0e407c2bda8392a9db71e4d754aab906bf8536f9797aa865854be6107cb

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\Internet Explorer\Services\search_{0633EE93-D776-472f-A0FF-E1416B8B2E3A}.ico

Filesize
4KB

MD5
da597791be3b6e732f0bc8b20e38ee62

SHA1
1125c45d285c360542027d7554a5c442288974de

SHA256
5b2c34b3c4e8dd898b664dba6c3786e2ff9869eff55d673aa48361f11325ed07

SHA512
d8dc8358727590a1ed74dc70356aedc0499552c2dc0cd4f7a01853dd85ceb3aead5fbdc7c75d7da36db6af2448ce5abdff64cebdca3533ecad953c061a9b338e

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar3D93.tmp

Filesize
171KB

MD5
9c0c641c06238516f27941aa1166d427

SHA1
64cd549fb8cf014fcd9312aa7a5b023847b6c977

SHA256
4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

SHA512
936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

Download Submit
memory/1912-2-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/1912-0-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download