ramnit | 340c9cca533d419fd91da066cd89a0000c1aa96700ced431701f9950403e81c9

General

Target

e43af739d8c6b0284f961a6ac3b055a0_JaffaCakes118.dll
Size

804KB
MD5

e43af739d8c6b0284f961a6ac3b055a0
SHA1

8ffcaa3a43460132898f5662f18d870b1b262b0e
SHA256

340c9cca533d419fd91da066cd89a0000c1aa96700ced431701f9950403e81c9
SHA512

c976598ee93ad6728b24d865d706781707bee3c6f02ae57190e048bc67d4636a5d90f89607e4d523350ae8864c34c9faa58faa5f6a3128bbb9a7dd2bacb3f0db
SSDEEP

12288:t6wseXyl8eHx0Tos+QY+TviT1Lj6V99mqDuWCSsmj7:t6wseXyl8eHx0Tos+p+6+DuWCSN

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 1 IoCs

pid	Process
3012	regsvr32mgr.exe

Loads dropped DLL 4 IoCs

pid	Process
1356	regsvr32.exe
1356	regsvr32.exe
3012	regsvr32mgr.exe
3012	regsvr32mgr.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\regsvr32mgr.exe	regsvr32.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3012-16-0x0000000000400000-0x000000000045C000-memory.dmp	upx
behavioral1/memory/3012-20-0x0000000000400000-0x000000000045C000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2336	3012	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 2 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	regsvr32mgr.exe

Modifies registry class 14 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{6931C7E7-75B7-4729-A153-A8AD99BDF70B}\FilterData = 02000000001080000200000000000000307069330400000000000000040000000000000000000000307479330000000090000000a0000000317479330000000090000000b0000000327479330000000090000000c0000000337479330000000090000000d0000000317069330c00000000000000010000000000000000000000307479330000000090000000e00000007669647300001000800000aa00389b715653534800001000800000aa00389b717673736800001000800000aa00389b714832363400001000800000aa00389b716832363400001000800000aa00389b7100000000000000000000000000000000	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6931C7E7-75B7-4729-A153-A8AD99BDF70B}\ = "Videosoft H.264 Decoder"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{6931C7E7-75B7-4729-A153-A8AD99BDF70B}\FriendlyName = "Videosoft H.264 Decoder"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F3F078BB-4276-4749-949C-5BE7BA25198D}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\e43af739d8c6b0284f961a6ac3b055a0_JaffaCakes118.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F3F078BB-4276-4749-949C-5BE7BA25198D}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6931C7E7-75B7-4729-A153-A8AD99BDF70B}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F3F078BB-4276-4749-949C-5BE7BA25198D}\ = "Videosoft H.264 About"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F3F078BB-4276-4749-949C-5BE7BA25198D}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6931C7E7-75B7-4729-A153-A8AD99BDF70B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6931C7E7-75B7-4729-A153-A8AD99BDF70B}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\e43af739d8c6b0284f961a6ac3b055a0_JaffaCakes118.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{6931C7E7-75B7-4729-A153-A8AD99BDF70B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{083863F1-70DE-11D0-BD40-00A0C911CE86}\Instance\{6931C7E7-75B7-4729-A153-A8AD99BDF70B}\CLSID = "{6931C7E7-75B7-4729-A153-A8AD99BDF70B}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6931C7E7-75B7-4729-A153-A8AD99BDF70B}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F3F078BB-4276-4749-949C-5BE7BA25198D}\InprocServer32	regsvr32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2660 wrote to memory of 1356	2660	regsvr32.exe	29
PID 2660 wrote to memory of 1356	2660	regsvr32.exe	29
PID 2660 wrote to memory of 1356	2660	regsvr32.exe	29
PID 2660 wrote to memory of 1356	2660	regsvr32.exe	29
PID 2660 wrote to memory of 1356	2660	regsvr32.exe	29
PID 2660 wrote to memory of 1356	2660	regsvr32.exe	29
PID 2660 wrote to memory of 1356	2660	regsvr32.exe	29
PID 1356 wrote to memory of 3012	1356	regsvr32.exe	30
PID 1356 wrote to memory of 3012	1356	regsvr32.exe	30
PID 1356 wrote to memory of 3012	1356	regsvr32.exe	30
PID 1356 wrote to memory of 3012	1356	regsvr32.exe	30

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\e43af739d8c6b0284f961a6ac3b055a0_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2660
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\e43af739d8c6b0284f961a6ac3b055a0_JaffaCakes118.dll
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1356
- - C:\Windows\SysWOW64\regsvr32mgr.exe
    C:\Windows\SysWOW64\regsvr32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:3012
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3012 -s 180
      4⤵
      Program crash
      PID:2336

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

\Users\Admin\AppData\Local\Temp\~TM37B3.tmp

Filesize
1.2MB

MD5
d124f55b9393c976963407dff51ffa79

SHA1
2c7bbedd79791bfb866898c85b504186db610b5d

SHA256
ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

SHA512
278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

Download Submit
\Users\Admin\AppData\Local\Temp\~TM386F.tmp

Filesize
1.1MB

MD5
9b98d47916ead4f69ef51b56b0c2323c

SHA1
290a80b4ded0efc0fd00816f373fcea81a521330

SHA256
96e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b

SHA512
68b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94

Download Submit
\Windows\SysWOW64\regsvr32mgr.exe

Filesize
354KB

MD5
a8245f71e4e4aff10e574300abd2bcc2

SHA1
7ea3ae53a0697e526c6bc877b103b390af042d7a

SHA256
7bf945e4d87567106bfe8980b4fe1e6482578ab91fa9d82426c804ae5c3f2546

SHA512
8c32f1f55c0475ce06ddbd3db80d529addb401089bd61491641d2e2c0c36020eabc5a947735388ae7a90514c543cb29450afa13b1e3f90387e432b62d4628978

Download Submit
memory/1356-1-0x0000000010000000-0x00000000100CE000-memory.dmp

Filesize
824KB

Download
memory/1356-4-0x00000000001F0000-0x000000000024C000-memory.dmp

Filesize
368KB

Download
memory/1356-10-0x00000000001F0000-0x000000000024C000-memory.dmp

Filesize
368KB

Download
memory/3012-11-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/3012-16-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/3012-15-0x0000000000220000-0x000000000027C000-memory.dmp

Filesize
368KB

Download
memory/3012-20-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download

Analysis

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