ramnit | 3cf979ce8f31f460d749100a58a38468b41175ea8f0671d743e857155e8ab070

General

Target

JaffaCakes118_b7139395802d3a66f67c9c701d55b34b.dll
Size

400KB
MD5

b7139395802d3a66f67c9c701d55b34b
SHA1

6c7bf47dad34b97307e4b9c53493a0090a57fbe9
SHA256

3cf979ce8f31f460d749100a58a38468b41175ea8f0671d743e857155e8ab070
SHA512

982530923b22d712a734f6356e912b8857bec31dc84e70ac4389a250ec4897a2ae520309739ccdbf53b40881104c62138e271010d432af2d20d843a6498f2162
SSDEEP

6144:6cV9z83OtqxnEYmt3NEnvfF+Tbmbw6An8FMciFMNrb3YgxxpbCAOxO2ElvlERsAY:6oz83OtIEzW+/m/AyF7bCrO/EKA6zD

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
1580	rundll32Srv.exe
1908	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/files/0x000d000000023fa5-3.dat	upx
behavioral1/memory/1580-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/1580-8-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/1908-14-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/1908-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px598A.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
3648	768	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-1-5-21-3833542908-3750648139-3436651901-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3833542908-3750648139-3436651901-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3833542908-3750648139-3436651901-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "451382732"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3833542908-3750648139-3436651901-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3833542908-3750648139-3436651901-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3833542908-3750648139-3436651901-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3833542908-3750648139-3436651901-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3833542908-3750648139-3436651901-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3833542908-3750648139-3436651901-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3833542908-3750648139-3436651901-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3833542908-3750648139-3436651901-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3833542908-3750648139-3436651901-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3833542908-3750648139-3436651901-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3833542908-3750648139-3436651901-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3833542908-3750648139-3436651901-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3833542908-3750648139-3436651901-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{D48A1A22-1906-11F0-9ABB-CE1B41A30C68} = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3833542908-3750648139-3436651901-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3833542908-3750648139-3436651901-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3833542908-3750648139-3436651901-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3833542908-3750648139-3436651901-1000\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

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1908	DesktopLayer.exe
1908	DesktopLayer.exe
1908	DesktopLayer.exe
1908	DesktopLayer.exe
1908	DesktopLayer.exe
1908	DesktopLayer.exe
1908	DesktopLayer.exe
1908	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4500	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4500	iexplore.exe
4500	iexplore.exe
4324	IEXPLORE.EXE
4324	IEXPLORE.EXE
4324	IEXPLORE.EXE
4324	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 408 wrote to memory of 768	408	rundll32.exe	86
PID 408 wrote to memory of 768	408	rundll32.exe	86
PID 408 wrote to memory of 768	408	rundll32.exe	86
PID 768 wrote to memory of 1580	768	rundll32.exe	87
PID 768 wrote to memory of 1580	768	rundll32.exe	87
PID 768 wrote to memory of 1580	768	rundll32.exe	87
PID 1580 wrote to memory of 1908	1580	rundll32Srv.exe	89
PID 1580 wrote to memory of 1908	1580	rundll32Srv.exe	89
PID 1580 wrote to memory of 1908	1580	rundll32Srv.exe	89
PID 1908 wrote to memory of 4500	1908	DesktopLayer.exe	91
PID 1908 wrote to memory of 4500	1908	DesktopLayer.exe	91
PID 4500 wrote to memory of 4324	4500	iexplore.exe	94
PID 4500 wrote to memory of 4324	4500	iexplore.exe	94
PID 4500 wrote to memory of 4324	4500	iexplore.exe	94

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b7139395802d3a66f67c9c701d55b34b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:408
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b7139395802d3a66f67c9c701d55b34b.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:768
- - 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:1580
  - - 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:1908
    - - 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:4500
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4500 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4324
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 768 -s 608
    3⤵
    - Program crash
    PID:3648

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 768 -ip 768
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\Local\Microsoft\Windows\INetCache\IE\98N7BPKJ\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/768-1-0x000000007C340000-0x000000007C3A5000-memory.dmp

Filesize
404KB

Download
memory/768-17-0x000000007C340000-0x000000007C3A5000-memory.dmp

Filesize
404KB

Download
memory/1580-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1580-8-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1580-5-0x0000000000540000-0x000000000054F000-memory.dmp

Filesize
60KB

Download
memory/1908-14-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1908-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1908-13-0x0000000000480000-0x0000000000481000-memory.dmp

Filesize
4KB

Download

Analysis

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