ramnit | 228d7e7a07ac4d22fa38efd91b71d3fa99756483a41e1f1c21d55d6ea4aab09d

General

Target

JaffaCakes118_b3433bff2ef4536a31bd199347aa6920.dll
Size

96KB
MD5

b3433bff2ef4536a31bd199347aa6920
SHA1

bbc39fc6d13bbc2d9e07a3a82044f593a69fcca6
SHA256

228d7e7a07ac4d22fa38efd91b71d3fa99756483a41e1f1c21d55d6ea4aab09d
SHA512

61b2d8d09fbb27c4b7d90d13f51f2aca66529e2386147ecafcc65d524b12142b2d636b3b6a7fa3d72029a1b714e20c3940733a656e6c75f7c525fe13cfc6612b
SSDEEP

1536:9ibToqp78CcGIXSQ140agF24wJvM6R0pH6aNbA+KutqKz3zQ6b:9ibTTp78CcDCe4Wl36R0pH6CYuLD

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
5772	rundll32Srv.exe
3156	DesktopLayer.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/5772-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x00050000000227be-3.dat	upx
behavioral1/memory/5772-7-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/3156-13-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/3156-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px5B10.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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
668	4488	WerFault.exe	86

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	rundll32.exe
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

Modifies Internet Explorer settings 1 TTPs 20 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "451275219"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{81D73AC1-180C-11F0-9A21-C6CB468AE5AC} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\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-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3156	DesktopLayer.exe
3156	DesktopLayer.exe
3156	DesktopLayer.exe
3156	DesktopLayer.exe
3156	DesktopLayer.exe
3156	DesktopLayer.exe
3156	DesktopLayer.exe
3156	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4248	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4248	iexplore.exe
4248	iexplore.exe
5124	IEXPLORE.EXE
5124	IEXPLORE.EXE
5124	IEXPLORE.EXE
5124	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3164 wrote to memory of 4488	3164	rundll32.exe	86
PID 3164 wrote to memory of 4488	3164	rundll32.exe	86
PID 3164 wrote to memory of 4488	3164	rundll32.exe	86
PID 4488 wrote to memory of 5772	4488	rundll32.exe	87
PID 4488 wrote to memory of 5772	4488	rundll32.exe	87
PID 4488 wrote to memory of 5772	4488	rundll32.exe	87
PID 5772 wrote to memory of 3156	5772	rundll32Srv.exe	89
PID 5772 wrote to memory of 3156	5772	rundll32Srv.exe	89
PID 5772 wrote to memory of 3156	5772	rundll32Srv.exe	89
PID 3156 wrote to memory of 4248	3156	DesktopLayer.exe	90
PID 3156 wrote to memory of 4248	3156	DesktopLayer.exe	90
PID 4248 wrote to memory of 5124	4248	iexplore.exe	92
PID 4248 wrote to memory of 5124	4248	iexplore.exe	92
PID 4248 wrote to memory of 5124	4248	iexplore.exe	92

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b3433bff2ef4536a31bd199347aa6920.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3164
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b3433bff2ef4536a31bd199347aa6920.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4488
- - 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:5772
  - - 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:3156
    - - 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:4248
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4248 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:5124
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4488 -s 608
    3⤵
    - Program crash
    PID:668

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4488 -ip 4488
1⤵
PID:2432

Network

MITRE ATT&CK Enterprise v16

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\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_363582827213C09529A76F35FB615187

Filesize
471B

MD5
15edd1b18d01ba2a613d62919ed706ab

SHA1
702cd3e62466b46eaa362e11fdeb5add76ba97f1

SHA256
beecd9f01075baf462dfc3e075918ee42b914d03e6704f94fe1a41526a6f0f72

SHA512
9176a541226bb43e5ff8ef7dcb558e44776e788ff80aff00b3ea8715a64d850b714586aafb0bdd1bac5d24b85357367a991915b89818242fb693f54edf7859f0

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_363582827213C09529A76F35FB615187

Filesize
412B

MD5
79acac22eeff434e4b680e11abafe190

SHA1
8926ba0762a0710832857031a75cfa637cfe4ba1

SHA256
e89ce30c2c4c06c8e18872e8877da1437552de1a886d9bd5d9734bf9b8dde55e

SHA512
198a1f3799e106c043f69cc4e9f4109f4a62fa813fa5ff276f31c2188f0d3b33a6ffce07eed2b426523cd8fe25db4d968b4eb0c42eb0cddbb3703ff26634f9b9

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\8RDJB14J\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

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

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/3156-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3156-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3156-14-0x0000000000550000-0x0000000000551000-memory.dmp

Filesize
4KB

Download
memory/4488-1-0x000000006D080000-0x000000006D098000-memory.dmp

Filesize
96KB

Download
memory/4488-17-0x000000006D080000-0x000000006D098000-memory.dmp

Filesize
96KB

Download
memory/5772-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/5772-7-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/5772-5-0x0000000000470000-0x000000000047F000-memory.dmp

Filesize
60KB

Download

Analysis

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