ramnit | 45f1dc4efcad79b30aa4357d00f968fd3729b293cd6a40a0f7170de2438b8265

General

Target

JaffaCakes118_895239bb95ea2c3434abba5a8d460892.dll
Size

136KB
MD5

895239bb95ea2c3434abba5a8d460892
SHA1

155bb74ddb8b2587265272041492e043df1e10b9
SHA256

45f1dc4efcad79b30aa4357d00f968fd3729b293cd6a40a0f7170de2438b8265
SHA512

31e25e7d75272ec55ff96fee5307ef1079e8d4884148ab5a5378f6191ea529aef8f221a65c700228e24082b18c15bf3a6d5122c5312fcfe4e88e7a84ccf95870
SSDEEP

1536:JhgQ0huIhtu/ypkBrpyHDDOV5+VCUDDp79hO7AlXSNXdD85Vd8xlKtcdie2OTnkq:zgQ0gIxmmDDpJhO7nXK5oxl1ie2ukF

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
3460	rundll32Srv.exe
4760	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
behavioral2/files/0x004500000002386d-3.dat	upx
behavioral2/memory/3460-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/3460-6-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4760-11-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4760-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4760-17-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px7C06.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
3528	856	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
Set value (int)	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "449790050"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{9423C329-0A8A-11F0-A824-4A8A2A9F28D8} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\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 (str)	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4760	DesktopLayer.exe
4760	DesktopLayer.exe
4760	DesktopLayer.exe
4760	DesktopLayer.exe
4760	DesktopLayer.exe
4760	DesktopLayer.exe
4760	DesktopLayer.exe
4760	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1896	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1896	iexplore.exe
1896	iexplore.exe
4228	IEXPLORE.EXE
4228	IEXPLORE.EXE
4228	IEXPLORE.EXE
4228	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4980 wrote to memory of 856	4980	rundll32.exe	86
PID 4980 wrote to memory of 856	4980	rundll32.exe	86
PID 4980 wrote to memory of 856	4980	rundll32.exe	86
PID 856 wrote to memory of 3460	856	rundll32.exe	87
PID 856 wrote to memory of 3460	856	rundll32.exe	87
PID 856 wrote to memory of 3460	856	rundll32.exe	87
PID 3460 wrote to memory of 4760	3460	rundll32Srv.exe	88
PID 3460 wrote to memory of 4760	3460	rundll32Srv.exe	88
PID 3460 wrote to memory of 4760	3460	rundll32Srv.exe	88
PID 4760 wrote to memory of 1896	4760	DesktopLayer.exe	90
PID 4760 wrote to memory of 1896	4760	DesktopLayer.exe	90
PID 1896 wrote to memory of 4228	1896	iexplore.exe	92
PID 1896 wrote to memory of 4228	1896	iexplore.exe	92
PID 1896 wrote to memory of 4228	1896	iexplore.exe	92

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_895239bb95ea2c3434abba5a8d460892.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4980
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_895239bb95ea2c3434abba5a8d460892.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:856
- - 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:3460
  - - 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:4760
    - - 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:1896
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1896 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4228
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 856 -s 608
    3⤵
    - Program crash
    PID:3528

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 856 -ip 856
1⤵
PID:4200

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\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_363582827213C09529A76F35FB615187

Filesize
471B

MD5
8ff27558fe87be5fa651d14906c8abfa

SHA1
188c39eb797ef62713abd3c0d3c2581b9d9e2d54

SHA256
149166fcccbe16cf50ac6e027bc9f6f3c7574f3b1b37def3de994011883c05a9

SHA512
ff35b953242ab10ae0907426e58cf95645b328fb9d03c6b72c311060daa3d0c6ad6686b9d8036ba466b241a114682cebb010a6ddf56c498c4018c99507d02f26

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

Filesize
412B

MD5
658852eef54b311e78adaebff16f7a7f

SHA1
a9aeb1d8f1f83eb1e743b1493be438b7ed9ee84f

SHA256
93f8f0d86d9ea4f373110c752d2292d9226cc75ad4fc7ffe057500ae0af15b2b

SHA512
bff8162859ef91b0baf57e5a596f5f11d661f3d7b92237379ac24e257bee387e8638dd84b21d8d02842c50e661c38add617bc2ca8963acbed42072a4da320684

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\84O89Q0W\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/856-18-0x000000006D430000-0x000000006D454000-memory.dmp

Filesize
144KB

Download
memory/856-1-0x000000006D430000-0x000000006D454000-memory.dmp

Filesize
144KB

Download
memory/3460-5-0x0000000000540000-0x000000000054F000-memory.dmp

Filesize
60KB

Download
memory/3460-6-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3460-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4760-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4760-17-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4760-14-0x0000000000510000-0x0000000000511000-memory.dmp

Filesize
4KB

Download
memory/4760-11-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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