ramnit | 4675d0a55c4847fa5d25711f1b36b1a1b1e68b75e6b794392abda56683824e1a

General

Target

JaffaCakes118_89bb0d1727ee97be362f38d78975dfe0.dll
Size

292KB
MD5

89bb0d1727ee97be362f38d78975dfe0
SHA1

af2985172d7b30bd5c19c8298459889e8f5c7d77
SHA256

4675d0a55c4847fa5d25711f1b36b1a1b1e68b75e6b794392abda56683824e1a
SHA512

e191a14c184644feb59b55bcc1b693741a0ccf3ea0c01490d428e1ecb4c3178e659bbe02202a7c8df55dfcf63ea7eab24b56b9a04462f0e78550990c703ff923
SSDEEP

6144:zl9XgnzxOP/sFR2h+9q1kih6ibUxrp3/vIyRlGY+V:zlCzcMg+9YkDiQ3/QkGYA

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
4748	rundll32Srv.exe
1092	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
behavioral2/files/0x00060000000236ea-3.dat	upx
behavioral2/memory/4748-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4748-7-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/1092-12-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/1092-14-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px80E8.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
3084	1992	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-1-5-21-83325578-304917428-1200496059-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-83325578-304917428-1200496059-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-83325578-304917428-1200496059-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-83325578-304917428-1200496059-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-83325578-304917428-1200496059-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-83325578-304917428-1200496059-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-83325578-304917428-1200496059-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-83325578-304917428-1200496059-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-83325578-304917428-1200496059-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-83325578-304917428-1200496059-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-83325578-304917428-1200496059-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-83325578-304917428-1200496059-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-83325578-304917428-1200496059-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{D8E367E4-0B02-11F0-9C64-5AE1D8468351} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-83325578-304917428-1200496059-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-83325578-304917428-1200496059-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "449841705"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-83325578-304917428-1200496059-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-83325578-304917428-1200496059-1000\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-1-5-21-83325578-304917428-1200496059-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-83325578-304917428-1200496059-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-83325578-304917428-1200496059-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1092	DesktopLayer.exe
1092	DesktopLayer.exe
1092	DesktopLayer.exe
1092	DesktopLayer.exe
1092	DesktopLayer.exe
1092	DesktopLayer.exe
1092	DesktopLayer.exe
1092	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
468	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
468	iexplore.exe
468	iexplore.exe
4120	IEXPLORE.EXE
4120	IEXPLORE.EXE
4120	IEXPLORE.EXE
4120	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 5000 wrote to memory of 1992	5000	rundll32.exe	86
PID 5000 wrote to memory of 1992	5000	rundll32.exe	86
PID 5000 wrote to memory of 1992	5000	rundll32.exe	86
PID 1992 wrote to memory of 4748	1992	rundll32.exe	87
PID 1992 wrote to memory of 4748	1992	rundll32.exe	87
PID 1992 wrote to memory of 4748	1992	rundll32.exe	87
PID 4748 wrote to memory of 1092	4748	rundll32Srv.exe	89
PID 4748 wrote to memory of 1092	4748	rundll32Srv.exe	89
PID 4748 wrote to memory of 1092	4748	rundll32Srv.exe	89
PID 1092 wrote to memory of 468	1092	DesktopLayer.exe	92
PID 1092 wrote to memory of 468	1092	DesktopLayer.exe	92
PID 468 wrote to memory of 4120	468	iexplore.exe	94
PID 468 wrote to memory of 4120	468	iexplore.exe	94
PID 468 wrote to memory of 4120	468	iexplore.exe	94

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_89bb0d1727ee97be362f38d78975dfe0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5000
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_89bb0d1727ee97be362f38d78975dfe0.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1992
- - 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:4748
  - - 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:1092
    - - 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:468
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:468 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4120
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1992 -s 616
    3⤵
    - Program crash
    PID:3084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1992 -ip 1992
1⤵
PID:1248

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
d902c296555b9fdd0e3239a7b5a38e0e

SHA1
524830360958ff844ea6de40b75f90b67c1a0e37

SHA256
131623c3427a7660bd863605488164f7ae8713f40d7c986c569e982976919d2e

SHA512
15881f1576ccbb23af55dab9d9f48f589a8815be3d498c6f86832491207d68604a71550ecb84efba4db42ec3d064f8e39443e9ff8b1475dfe825dd51da30ca4b

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\EAO45EME\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/1092-12-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1092-13-0x0000000000480000-0x0000000000481000-memory.dmp

Filesize
4KB

Download
memory/1092-14-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1992-0-0x0000000075200000-0x0000000075249000-memory.dmp

Filesize
292KB

Download
memory/1992-17-0x0000000075200000-0x0000000075249000-memory.dmp

Filesize
292KB

Download
memory/4748-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4748-7-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4748-5-0x0000000000470000-0x000000000047F000-memory.dmp

Filesize
60KB

Download

Analysis

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