ramnit | 7596127538602a3a05b640c0e0aca4642a9b71de4cab16fd5301aa682fa0e1ff

General

Target

JaffaCakes118_b334c12d18359846c8dae92809711fc0.dll
Size

388KB
MD5

b334c12d18359846c8dae92809711fc0
SHA1

3034ffe386a150e1577df99a37977f3ce049a15a
SHA256

7596127538602a3a05b640c0e0aca4642a9b71de4cab16fd5301aa682fa0e1ff
SHA512

b135285d190d70d59e2eb8b77545d7e6016aca4a62fe5a6d238992064acb557a8be6eb7483e09d84799dc237f6c1e767834ba621f8cc8a51e39fa19a3611e225
SSDEEP

6144:DIrIshB5Esv4ULo6bVGTraIYteLLqsOQ9jUG9+45VrrE81YVGO1JYgmsK66Tz:MrIshbtv4ULTZGPysOGL5NwqlWYNx

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
5636	rundll32Srv.exe
2612	DesktopLayer.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x00120000000236f4-3.dat	upx
behavioral1/memory/5636-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/5636-6-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2612-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2612-11-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2612-17-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px6793.tmp	rundll32Srv.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5480	5340	WerFault.exe	84

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-1-5-21-3078542121-369484597-920690335-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{71B1FCD3-1808-11F0-947A-F69850A54CFA} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\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-1-5-21-3078542121-369484597-920690335-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "451273474"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2612	DesktopLayer.exe
2612	DesktopLayer.exe
2612	DesktopLayer.exe
2612	DesktopLayer.exe
2612	DesktopLayer.exe
2612	DesktopLayer.exe
2612	DesktopLayer.exe
2612	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4132	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4132	iexplore.exe
4132	iexplore.exe
828	IEXPLORE.EXE
828	IEXPLORE.EXE
828	IEXPLORE.EXE
828	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2812 wrote to memory of 5340	2812	rundll32.exe	84
PID 2812 wrote to memory of 5340	2812	rundll32.exe	84
PID 2812 wrote to memory of 5340	2812	rundll32.exe	84
PID 5340 wrote to memory of 5636	5340	rundll32.exe	85
PID 5340 wrote to memory of 5636	5340	rundll32.exe	85
PID 5340 wrote to memory of 5636	5340	rundll32.exe	85
PID 5636 wrote to memory of 2612	5636	rundll32Srv.exe	86
PID 5636 wrote to memory of 2612	5636	rundll32Srv.exe	86
PID 5636 wrote to memory of 2612	5636	rundll32Srv.exe	86
PID 2612 wrote to memory of 4132	2612	DesktopLayer.exe	88
PID 2612 wrote to memory of 4132	2612	DesktopLayer.exe	88
PID 4132 wrote to memory of 828	4132	iexplore.exe	90
PID 4132 wrote to memory of 828	4132	iexplore.exe	90
PID 4132 wrote to memory of 828	4132	iexplore.exe	90

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b334c12d18359846c8dae92809711fc0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2812
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b334c12d18359846c8dae92809711fc0.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5340
- - 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:5636
  - - 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:2612
    - - 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:4132
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4132 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:828
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5340 -s 640
    3⤵
    - Program crash
    PID:5480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 5340 -ip 5340
1⤵
PID:1384

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\Local\Microsoft\Windows\INetCache\IE\Y4XTGLE2\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/2612-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2612-14-0x0000000000550000-0x0000000000551000-memory.dmp

Filesize
4KB

Download
memory/2612-11-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2612-17-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/5340-0-0x0000000010000000-0x0000000010063000-memory.dmp

Filesize
396KB

Download
memory/5340-18-0x0000000010000000-0x0000000010063000-memory.dmp

Filesize
396KB

Download
memory/5636-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/5636-6-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/5636-5-0x00000000004B0000-0x00000000004BF000-memory.dmp

Filesize
60KB

Download

Analysis

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