c604f076eccd12399592a23f3f7f3bcbf6963937f356be19767ea92c9bcc3de8

Analysis

max time kernel
118s
max time network
139s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
29/12/2023, 22:53

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General

Target

063159b0fdc7f018ef67d9fce5a474d1.exe
Size

39KB
MD5

063159b0fdc7f018ef67d9fce5a474d1
SHA1

52e768e6f7e1158ea9048c27ffb9c7c3f4288cdc
SHA256

c604f076eccd12399592a23f3f7f3bcbf6963937f356be19767ea92c9bcc3de8
SHA512

d8cc3e286840f81ff2ff49276355ce9d4aea38f32a532e5a961af8dd2a8a640b2af8963cf58e8ec7612651f124dd7e9d8c863f55d5e1b04cece0068f2f3844eb
SSDEEP

768:AFQ6iz8orPRcO3qlZ9MT1Xl9eGn8qSKdNFz9A8i9lo0o/qeU:cLixbqlHM5XHeR8NzA8Iq00

Score

8^/10

persistence

Malware Config

Signatures

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	063159b0fdc7f018ef67d9fce5a474d1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\dlncjjcdfc = "C:\\Windows\\system\\jjxzwzjy081230.exe"	063159b0fdc7f018ef67d9fce5a474d1.exe

Deletes itself 1 IoCs

pid	Process
2508	cmd.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\jjxzwzjy081230.exe	063159b0fdc7f018ef67d9fce5a474d1.exe
File opened for modification	C:\Windows\system\jjxzjcj32dla.dll	063159b0fdc7f018ef67d9fce5a474d1.exe
File created	C:\Windows\system\jjxzjcj32dla.dll	063159b0fdc7f018ef67d9fce5a474d1.exe
File created	C:\Windows\system\jjxzwzjy081230.exe	063159b0fdc7f018ef67d9fce5a474d1.exe

Modifies Internet Explorer settings 1 TTPs 31 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\GPU	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 (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
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\Main	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\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	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\SearchScopes	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\Main\Check_Associations = "no"	063159b0fdc7f018ef67d9fce5a474d1.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\IETld\LowMic	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\{FC81DA71-A70D-11EE-BA32-F6E8909E8427} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "410100782"	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\Toolbar	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\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	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
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\SearchScopes\{0633EE93-D776-472f-A0FF-E1416B8B2E3A}	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
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	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

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2236	063159b0fdc7f018ef67d9fce5a474d1.exe
2236	063159b0fdc7f018ef67d9fce5a474d1.exe
2236	063159b0fdc7f018ef67d9fce5a474d1.exe
2236	063159b0fdc7f018ef67d9fce5a474d1.exe
2236	063159b0fdc7f018ef67d9fce5a474d1.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2236	063159b0fdc7f018ef67d9fce5a474d1.exe
Token: SeSystemtimePrivilege	2236	063159b0fdc7f018ef67d9fce5a474d1.exe
Token: SeSystemtimePrivilege	2236	063159b0fdc7f018ef67d9fce5a474d1.exe
Token: SeDebugPrivilege	2236	063159b0fdc7f018ef67d9fce5a474d1.exe
Token: SeDebugPrivilege	2236	063159b0fdc7f018ef67d9fce5a474d1.exe
Token: SeDebugPrivilege	2236	063159b0fdc7f018ef67d9fce5a474d1.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2668	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2668	iexplore.exe
2668	iexplore.exe
2732	IEXPLORE.EXE
2732	IEXPLORE.EXE
2732	IEXPLORE.EXE
2732	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 2668	2236	063159b0fdc7f018ef67d9fce5a474d1.exe	30
PID 2236 wrote to memory of 2668	2236	063159b0fdc7f018ef67d9fce5a474d1.exe	30
PID 2236 wrote to memory of 2668	2236	063159b0fdc7f018ef67d9fce5a474d1.exe	30
PID 2236 wrote to memory of 2668	2236	063159b0fdc7f018ef67d9fce5a474d1.exe	30
PID 2668 wrote to memory of 2732	2668	iexplore.exe	29
PID 2668 wrote to memory of 2732	2668	iexplore.exe	29
PID 2668 wrote to memory of 2732	2668	iexplore.exe	29
PID 2668 wrote to memory of 2732	2668	iexplore.exe	29
PID 2236 wrote to memory of 2668	2236	063159b0fdc7f018ef67d9fce5a474d1.exe	30
PID 2236 wrote to memory of 2508	2236	063159b0fdc7f018ef67d9fce5a474d1.exe	32
PID 2236 wrote to memory of 2508	2236	063159b0fdc7f018ef67d9fce5a474d1.exe	32
PID 2236 wrote to memory of 2508	2236	063159b0fdc7f018ef67d9fce5a474d1.exe	32
PID 2236 wrote to memory of 2508	2236	063159b0fdc7f018ef67d9fce5a474d1.exe	32

C:\Users\Admin\AppData\Local\Temp\063159b0fdc7f018ef67d9fce5a474d1.exe
"C:\Users\Admin\AppData\Local\Temp\063159b0fdc7f018ef67d9fce5a474d1.exe"
1⤵
- Adds policy Run key to start application
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2236
- 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:2668
- C:\Windows\SysWOW64\cmd.exe
  cmd /c del "C:\Users\Admin\AppData\Local\Temp\063159b0fdc7f018ef67d9fce5a474d1.exe"
  2⤵
  - Deletes itself
  PID:2508

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2668 CREDAT:275457 /prefetch:2
1⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:2732

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\jjjydf16.ini

Filesize
110B

MD5
84cfe80eeb0798b904f2343f29307f66

SHA1
0ac39599b78605e815c51abf3c3aa6963f72b86e

SHA256
c80370e44b7838477d3d2a01f5e0b7af464594dc7a35ad91a5209e7dbbf4d598

SHA512
fbb907a8b56e55e5d6f644135b5bc505e43dd5860ea2380dd23770bcec5249bf3b4c22ae1d04b491777c780fb2448cf3b5a1a4aed8efc302754dd390a7dd7080

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

Filesize
32KB

MD5
8fe278bd8eac660d0161a869da96b8d8

SHA1
eac6f73862d89fc8c49b5331cabe89b6a57019b1

SHA256
e8a6de34603eb9e91ba82f555080758e480ab044ffa9c140028706f916eb2c0a

SHA512
b180b8df22e421493dcc75a2caed123f7c7756295f691579ea5c426c741f80e381b4960b5cbd6b5e87547d75e44ab654d1c4704fe34b4b743a57f334bd05846c

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

Filesize
344B

MD5
94ac1c21c77c5dc9c198eb55800cae4c

SHA1
f7f57a76927beb1fab8445de386a7f34d6988e8d

SHA256
fdea905e2383374599981e7c215f669ef4e54e31f40e6168ad1ea3f70c7950c9

SHA512
c4504843c0b45ab60848a80172dccb5dc20785b7e6d0d118b00bdc3ddc6a560f3cc2b86856ba2695e03f84791783e0adef2ff14e8df0bee9e88e4314b476bb3d

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
memory/2236-0-0x0000000000130000-0x0000000000161000-memory.dmp

Filesize
196KB

Download
memory/2236-12-0x0000000000130000-0x0000000000161000-memory.dmp

Filesize
196KB

Download