ramnit | d2a9192163b4aa026f44273eccef14968da7ba988bb3bb049ddd5eb6b2b8cb18

Analysis

max time kernel
146s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
25/03/2024, 15:00

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General

Target
d2a9192163b4aa026f44273eccef14968da7ba988bb3bb049ddd5eb6b2b8cb18.exe
Size 4.0MB
Sample240325-sdmznaeb4y
SHA256 d2a9192163b4aa026f44273eccef14968da7ba988bb3bb049ddd5eb6b2b8cb18
MD5 221ac38c70d5602d914b61ccf357c84d
SHA1 7f69c1248fcf0f97e6500fd365753bec831a789c
SHA512 61fe5930698f1b690dadccd6090cfc539ed15019e1cdcfc946f5cef2bf53de2e3f631005a3d35dad2723949d5263ecb7f5f7c4add23650e57787544c62935821
SSDEEP 98304:Gp/QW6K6zABfrJHLNGZ8yF/gj8LhNHFDKhBjVL1VBgciL:Gp/6zABfrJrNGZ8AIgLhNHFDK3
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

ramnit banker spyware stealer trojan upx worm

Malware Config

Signatures

Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit

Executes dropped EXE 2 IoCs

pid	Process
4896	d2a9192163b4aa026f44273eccef14968da7ba988bb3bb049ddd5eb6b2b8cb18Srv.exe
4204	DesktopLayer.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0008000000023220-3.dat	upx
behavioral2/memory/4896-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4896-6-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x000800000002322a-10.dat	upx
behavioral2/memory/4204-11-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4204-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px5813.tmp	d2a9192163b4aa026f44273eccef14968da7ba988bb3bb049ddd5eb6b2b8cb18Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	d2a9192163b4aa026f44273eccef14968da7ba988bb3bb049ddd5eb6b2b8cb18Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	d2a9192163b4aa026f44273eccef14968da7ba988bb3bb049ddd5eb6b2b8cb18Srv.exe

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "418143827"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1288377043"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1294939988"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31096517"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1288377043"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31096517"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{78664B68-EAB8-11EE-B09F-CE945492B8DF} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31096517"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\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-1-5-21-609813121-2907144057-1731107329-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4204	DesktopLayer.exe
4204	DesktopLayer.exe
4204	DesktopLayer.exe
4204	DesktopLayer.exe
4204	DesktopLayer.exe
4204	DesktopLayer.exe
4204	DesktopLayer.exe
4204	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
944	iexplore.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
3700	d2a9192163b4aa026f44273eccef14968da7ba988bb3bb049ddd5eb6b2b8cb18.exe
3700	d2a9192163b4aa026f44273eccef14968da7ba988bb3bb049ddd5eb6b2b8cb18.exe
944	iexplore.exe
944	iexplore.exe
64	IEXPLORE.EXE
64	IEXPLORE.EXE
64	IEXPLORE.EXE
64	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3700 wrote to memory of 4896	3700	d2a9192163b4aa026f44273eccef14968da7ba988bb3bb049ddd5eb6b2b8cb18.exe	88
PID 3700 wrote to memory of 4896	3700	d2a9192163b4aa026f44273eccef14968da7ba988bb3bb049ddd5eb6b2b8cb18.exe	88
PID 3700 wrote to memory of 4896	3700	d2a9192163b4aa026f44273eccef14968da7ba988bb3bb049ddd5eb6b2b8cb18.exe	88
PID 4896 wrote to memory of 4204	4896	d2a9192163b4aa026f44273eccef14968da7ba988bb3bb049ddd5eb6b2b8cb18Srv.exe	89
PID 4896 wrote to memory of 4204	4896	d2a9192163b4aa026f44273eccef14968da7ba988bb3bb049ddd5eb6b2b8cb18Srv.exe	89
PID 4896 wrote to memory of 4204	4896	d2a9192163b4aa026f44273eccef14968da7ba988bb3bb049ddd5eb6b2b8cb18Srv.exe	89
PID 4204 wrote to memory of 944	4204	DesktopLayer.exe	90
PID 4204 wrote to memory of 944	4204	DesktopLayer.exe	90
PID 944 wrote to memory of 64	944	iexplore.exe	92
PID 944 wrote to memory of 64	944	iexplore.exe	92
PID 944 wrote to memory of 64	944	iexplore.exe	92

C:\Users\Admin\AppData\Local\Temp\d2a9192163b4aa026f44273eccef14968da7ba988bb3bb049ddd5eb6b2b8cb18.exe
"C:\Users\Admin\AppData\Local\Temp\d2a9192163b4aa026f44273eccef14968da7ba988bb3bb049ddd5eb6b2b8cb18.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3700
- C:\Users\Admin\AppData\Local\Temp\d2a9192163b4aa026f44273eccef14968da7ba988bb3bb049ddd5eb6b2b8cb18Srv.exe
  C:\Users\Admin\AppData\Local\Temp\d2a9192163b4aa026f44273eccef14968da7ba988bb3bb049ddd5eb6b2b8cb18Srv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:4896
- - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
    "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:4204
  - - C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of FindShellTrayWindow
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:944
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:944 CREDAT:17410 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:64

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

DesktopLayer.exe

Path C:\Program Files (x86)\Microsoft\DesktopLayer.exe
Size 14KB
SHA256 aaab3dfe2c1637e37d0e14622f05992a601747d205b51f4d441dbcfe9527225f
MD5 ee113bb0040017c02ad3338a9ceb3349
SHA1 848dd77a2709cb1d525c77222cec330724be0773
SHA512 9afed2566f3715f97f9dff87bc3a9525ce8e2931e437b54a3eec163aa7a393bc1327fbc0d86bbb538d8d9e7a6c9dc7bc0dc71130c1373985edbde6254f40d288
SSDEEP 384:JoJCs+hzzqcI9RGh+T6RiwsikdPg3TOVL9wbIcie:a8s+hzmqQ6kwsikdqKVL976
MD5 SHA1 SHA512 SSDEEP

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suggestions[1].en-US

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\7U91ICFQ\suggestions[1].en-US
Size 17KB
SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
MD5 5a34cb996293fde2cb7a4ac89587393a
SHA1 3c96c993500690d1a77873cd62bc639b3a10653f
SHA512 e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
SSDEEP 384:K4gN8sGygaEKfWYSJUKbO7UckxtBjCdY7mO3D0C5l+piEieDSV126ry1/XSGKwG3:K4gNFXiKfWfJ1Kockxbd7mAt5Mp5ie2F
MD5 SHA1 SHA512 SSDEEP

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d2a9192163b4aa026f44273eccef14968da7ba988bb3bb049ddd5eb6b2b8cb18Srv.exe

Path C:\Users\Admin\AppData\Local\Temp\d2a9192163b4aa026f44273eccef14968da7ba988bb3bb049ddd5eb6b2b8cb18Srv.exe
Size 55KB
SHA256 fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
MD5 ff5e1f27193ce51eec318714ef038bef
SHA1 b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA512 c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
SSDEEP 1536:Q+hzRsibKplyXTq8OGRnsPFG+RODTb7MXL5uXZnzE:bROzoTq0+RO7IwnY
MD5 SHA1 SHA512 SSDEEP

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memory/3700-20-0x0000000000400000-0x0000000000813000-memory.dmp

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memory/3700-0-0x0000000000400000-0x0000000000813000-memory.dmp

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memory/4204-15-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/4204-11-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/4204-13-0x0000000000490000-0x0000000000491000-memory.dmp

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memory/4204-16-0x0000000077B42000-0x0000000077B43000-memory.dmp

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memory/4204-17-0x0000000000480000-0x000000000048F000-memory.dmp

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memory/4204-18-0x0000000077B42000-0x0000000077B43000-memory.dmp

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memory/4896-7-0x0000000000550000-0x000000000055F000-memory.dmp

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memory/4896-6-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/4896-4-0x0000000000400000-0x000000000042E000-memory.dmp

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