ramnit | 10f4d9fee143ebd90f09aa727a82a960e19dd11249198e948b15df96747d4b19

General

Target

10f4d9fee143ebd90f09aa727a82a960e19dd11249198e948b15df96747d4b19.dll
Size

176KB
MD5

241647abf8171a2eb5de0e90d76ac690
SHA1

443cf7badf17eddab5d8b7b8963a77f6a70a7b60
SHA256

10f4d9fee143ebd90f09aa727a82a960e19dd11249198e948b15df96747d4b19
SHA512

41d37758f6bc1884f40690f6450ae41d3329b6f2bb5b25dffd8553cdba9097570c0ba47ec791d6c653219c70ffc8e165451ad28c18ad70fef54b1e9689ff9fd8
SSDEEP

3072:4N6BZXWUlCiyYKyCsgTu7oMXOHgB39Ga/MfRP+tKAdNcGrV3:SIsmlay5gAT/Mfkx73

Score

10^/10

ramnit banker discovery 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
Ramnit family
ramnit

Executes dropped EXE 2 IoCs

pid	Process
4604	rundll32Srv.exe
1688	DesktopLayer.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32Srv.exe	rundll32.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4604-6-0x0000000000400000-0x0000000000413000-memory.dmp	upx
behavioral2/memory/1688-15-0x0000000000400000-0x0000000000413000-memory.dmp	upx
behavioral2/memory/1688-14-0x0000000000400000-0x0000000000413000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px9E82.tmp	rundll32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32Srv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DesktopLayer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Modifies Internet Explorer settings 1 TTPs 26 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{578D478E-DB56-11EF-ADF2-FA9F886F8D04} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "740565649"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "444599910"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31158115"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\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
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "738689958"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31158115"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1688	DesktopLayer.exe
1688	DesktopLayer.exe
1688	DesktopLayer.exe
1688	DesktopLayer.exe
1688	DesktopLayer.exe
1688	DesktopLayer.exe
1688	DesktopLayer.exe
1688	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1208	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1208	iexplore.exe
1208	iexplore.exe
428	IEXPLORE.EXE
428	IEXPLORE.EXE
428	IEXPLORE.EXE
428	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2144 wrote to memory of 2864	2144	rundll32.exe	81
PID 2144 wrote to memory of 2864	2144	rundll32.exe	81
PID 2144 wrote to memory of 2864	2144	rundll32.exe	81
PID 2864 wrote to memory of 4604	2864	rundll32.exe	82
PID 2864 wrote to memory of 4604	2864	rundll32.exe	82
PID 2864 wrote to memory of 4604	2864	rundll32.exe	82
PID 4604 wrote to memory of 1688	4604	rundll32Srv.exe	83
PID 4604 wrote to memory of 1688	4604	rundll32Srv.exe	83
PID 4604 wrote to memory of 1688	4604	rundll32Srv.exe	83
PID 1688 wrote to memory of 1208	1688	DesktopLayer.exe	84
PID 1688 wrote to memory of 1208	1688	DesktopLayer.exe	84
PID 1208 wrote to memory of 428	1208	iexplore.exe	85
PID 1208 wrote to memory of 428	1208	iexplore.exe	85
PID 1208 wrote to memory of 428	1208	iexplore.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\10f4d9fee143ebd90f09aa727a82a960e19dd11249198e948b15df96747d4b19.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2144
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\10f4d9fee143ebd90f09aa727a82a960e19dd11249198e948b15df96747d4b19.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2864
- - C:\Windows\SysWOW64\rundll32Srv.exe
    C:\Windows\SysWOW64\rundll32Srv.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4604
  - - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
      "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:1688
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:1208
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1208 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:428

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
e65df85bed59dcdd6d3b7e9ff6d83f91

SHA1
7a960f472f0bdbd9c2801571001d7f8002a698d0

SHA256
8e1c012d62099e1effdd30982d30f2d91bd25dca27f230b13d74531ede846201

SHA512
e0a111bc33760f3957ca88c4cdc2aa7b8418ce73062eed31939b07b94fc0ecef022135ca93381c47b71a7c43c0c1357025f0e5d72a3348b2ef3de0c81cef38c4

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
404B

MD5
2b561bc4a6996c9ad7a99068d7fe471f

SHA1
3c3aff68cd9251fa0c7803bc11ec7a535cb7673c

SHA256
02fe00a16c336712aacc86ed4e6da914b67763b9f629c39c231052dedf859097

SHA512
d9239d68c934fc13c8606fc0b85e8b82d4a2556408e4c53102218e6f47cdad7c61e2f0a146a06873ef760843f6733a8fa51e592570f75f90aed2a50f8e010086

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\PGH3GSHW\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Windows\SysWOW64\rundll32Srv.exe

Filesize
52KB

MD5
ce99b549382dbfc4f41efe99b5dbcd54

SHA1
66905167920ece3a0bf65441d30da72ad25b7475

SHA256
e26d8f6a9c98b949d1f58c97c2dbcf7d90d7a3c3d2f06eb9b6033465d493322d

SHA512
54447bdddf475594a4e8f5ccda131190e3e858a02e0147aee7c7b04ae54812b18aefdbdf5e59fc3005686b06fe938b904b2099672063738898f4995fd4bab1bc

Download Submit
memory/1688-13-0x00000000005A0000-0x00000000005A1000-memory.dmp

Filesize
4KB

Download
memory/1688-15-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/1688-14-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2864-1-0x0000000010000000-0x000000001002F000-memory.dmp

Filesize
188KB

Download
memory/4604-5-0x0000000001EF0000-0x0000000001F03000-memory.dmp

Filesize
76KB

Download
memory/4604-6-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/4604-12-0x0000000001EF0000-0x0000000001F03000-memory.dmp

Filesize
76KB

Download

Analysis

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