ramnit | 0579d7ef007ad168d826d8332982284b3a2f61eda8e18855f134bde2057564dc

General

Target

JaffaCakes118_86c29cebce4eacb444a1802a78d946db.dll
Size

236KB
MD5

86c29cebce4eacb444a1802a78d946db
SHA1

b15cd5b29a24a2b769d205304e987204dc589832
SHA256

0579d7ef007ad168d826d8332982284b3a2f61eda8e18855f134bde2057564dc
SHA512

88006b4c4878f43fc0f781878907198b2d638120728976cb1df41c9e3fd184bf4a3f7b0e0db998687f88e879b7ec756dbfea5eb27954f3883a26c94082b3ea7f
SSDEEP

3072:iNzt20uHs4Lhun3AZi3SnTyS72V7jzzCqHwJHoc8WqR0WXknVvSM2KQ:azFn4ut3Oy+2xjXfI8wQknVvYKQ

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
3536	regsvr32Srv.exe
2496	DesktopLayer.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\regsvr32Srv.exe	regsvr32.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3536-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x000a0000000227cb-3.dat	upx
behavioral2/memory/3536-8-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/2496-12-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/2496-14-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/2496-16-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/2496-17-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px5FF2.tmp	regsvr32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	regsvr32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	regsvr32Srv.exe

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	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32Srv.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-1-5-21-3975168204-1612096350-4002976354-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "449426205"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{6FB24BF7-073B-11F0-B6D4-7219D7A672FE} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\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
2496	DesktopLayer.exe
2496	DesktopLayer.exe
2496	DesktopLayer.exe
2496	DesktopLayer.exe
2496	DesktopLayer.exe
2496	DesktopLayer.exe
2496	DesktopLayer.exe
2496	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2088	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2088	iexplore.exe
2088	iexplore.exe
6108	IEXPLORE.EXE
6108	IEXPLORE.EXE
6108	IEXPLORE.EXE
6108	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 6112 wrote to memory of 3036	6112	regsvr32.exe	85
PID 6112 wrote to memory of 3036	6112	regsvr32.exe	85
PID 6112 wrote to memory of 3036	6112	regsvr32.exe	85
PID 3036 wrote to memory of 3536	3036	regsvr32.exe	86
PID 3036 wrote to memory of 3536	3036	regsvr32.exe	86
PID 3036 wrote to memory of 3536	3036	regsvr32.exe	86
PID 3536 wrote to memory of 2496	3536	regsvr32Srv.exe	87
PID 3536 wrote to memory of 2496	3536	regsvr32Srv.exe	87
PID 3536 wrote to memory of 2496	3536	regsvr32Srv.exe	87
PID 2496 wrote to memory of 2088	2496	DesktopLayer.exe	88
PID 2496 wrote to memory of 2088	2496	DesktopLayer.exe	88
PID 2088 wrote to memory of 6108	2088	iexplore.exe	90
PID 2088 wrote to memory of 6108	2088	iexplore.exe	90
PID 2088 wrote to memory of 6108	2088	iexplore.exe	90

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_86c29cebce4eacb444a1802a78d946db.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:6112
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_86c29cebce4eacb444a1802a78d946db.dll
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3036
- - C:\Windows\SysWOW64\regsvr32Srv.exe
    C:\Windows\SysWOW64\regsvr32Srv.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3536
  - - 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:2496
    - - 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:2088
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2088 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:6108

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
01fa3211165ca3e0dbd816e5389630bf

SHA1
2a6569707c8ea29cbf996a906855470bb7831f48

SHA256
ab165a9a5b25e6c05f6f2eac77c9dcc9b4157897524a0be4415cdae9cef5636f

SHA512
1848c476ebf00781299715f7c664465a071fa54e3bc14002df35a74aa27667788956bddc4b96b241ea2865f819cf5e33ed7907504a99342c2a0379a0964550ad

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

Filesize
412B

MD5
6fd4cff83a36fe554c2dce3f5dbd26b6

SHA1
bb77f21fb28011428a42cd6c8d4ad834ff424c95

SHA256
c2fa47f8cdebd23172e17c03abf6f3bdf489032f1de01c4d6ace3592657d0c11

SHA512
2253f2f13175e5be2aaff162951acfbe3d55c89320a21943ffb0c54b435030c7ec738cda172fa1692506ff41ff67ab0b8580ff4b971236b0d0a196528de5d310

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\0CMYC78C\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Windows\SysWOW64\regsvr32Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/2496-17-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2496-12-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2496-14-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2496-16-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2496-15-0x0000000002040000-0x0000000002041000-memory.dmp

Filesize
4KB

Download
memory/3036-0-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download
memory/3536-6-0x00000000004B0000-0x00000000004BF000-memory.dmp

Filesize
60KB

Download
memory/3536-8-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3536-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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