ramnit | 2a1ca62311fc416144f081e1b79fcb1cca40eb6da24de9916d6f90095440bf79

General

Target

2a1ca62311fc416144f081e1b79fcb1cca40eb6da24de9916d6f90095440bf79N.dll
Size

240KB
MD5

4c7e8e6b0b27576220989a77779b20c0
SHA1

3bfb438b0b65340eb5d86b6799cf8a87fc4215c6
SHA256

2a1ca62311fc416144f081e1b79fcb1cca40eb6da24de9916d6f90095440bf79
SHA512

c8540474d1029d61328d9cafec601bf33672f84fd2cfb9c3940a036346a1294fc2ac9142b15c4d9d79fcfc38ed7b222eacb005321c966e6137920ccdd3309538
SSDEEP

3072:43Z4B+8x2fCFIpcLy1n5lB7GrDWwqrlK4tb1sA622USAz3y184D:43KB+8A6FecLq1BwytF6DYC11D

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
4288	regsvr32mgr.exe

Loads dropped DLL 1 IoCs

pid	Process
4288	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
behavioral2/memory/4288-5-0x0000000000400000-0x000000000042D000-memory.dmp	upx
behavioral2/memory/4288-6-0x0000000000400000-0x000000000042C1D8-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3988	4288	WerFault.exe	84

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 21 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BA5748AA-CD16-4D3F-82F8-AC17CDCA598C}\ProgID\ = "MtContain.CMtContainer.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BA5748AA-CD16-4D3F-82F8-AC17CDCA598C}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MtContain.CMtContainer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MtContain.CMtContainer\ = "Multimedia Terminator Container"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MtContain.CMtContainer.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BA5748AA-CD16-4D3F-82F8-AC17CDCA598C}\ = "Multimedia Terminator Container"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BA5748AA-CD16-4D3F-82F8-AC17CDCA598C}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BA5748AA-CD16-4D3F-82F8-AC17CDCA598C}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MtContain.CMtContainer.1\CLSID\ = "{BA5748AA-CD16-4D3F-82F8-AC17CDCA598C}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MtContain.CMtContainer.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BA5748AA-CD16-4D3F-82F8-AC17CDCA598C}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BA5748AA-CD16-4D3F-82F8-AC17CDCA598C}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MtContain.CMtContainer.1\ = "Multimedia Terminator Container"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MtContain.CMtContainer\CurVer\ = "MtContain.CMtContainer.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BA5748AA-CD16-4D3F-82F8-AC17CDCA598C}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2a1ca62311fc416144f081e1b79fcb1cca40eb6da24de9916d6f90095440bf79N.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BA5748AA-CD16-4D3F-82F8-AC17CDCA598C}\TypeLib\ = "{00000000-0000-0000-0000-000000000000}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MtContain.CMtContainer\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MtContain.CMtContainer\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BA5748AA-CD16-4D3F-82F8-AC17CDCA598C}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BA5748AA-CD16-4D3F-82F8-AC17CDCA598C}\VersionIndependentProgID\ = "MtContain.CMtContainer"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MtContain.CMtContainer\CLSID\ = "{BA5748AA-CD16-4D3F-82F8-AC17CDCA598C}"	regsvr32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2856 wrote to memory of 384	2856	regsvr32.exe	83
PID 2856 wrote to memory of 384	2856	regsvr32.exe	83
PID 2856 wrote to memory of 384	2856	regsvr32.exe	83
PID 384 wrote to memory of 4288	384	regsvr32.exe	84
PID 384 wrote to memory of 4288	384	regsvr32.exe	84
PID 384 wrote to memory of 4288	384	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\2a1ca62311fc416144f081e1b79fcb1cca40eb6da24de9916d6f90095440bf79N.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2856
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\2a1ca62311fc416144f081e1b79fcb1cca40eb6da24de9916d6f90095440bf79N.dll
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:384
- - C:\Windows\SysWOW64\regsvr32mgr.exe
    C:\Windows\SysWOW64\regsvr32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:4288
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4288 -s 10168
      4⤵
      Program crash
      PID:3988

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4288 -ip 4288
1⤵
PID:3928

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

C:\Users\Admin\AppData\Local\Temp\~TM7F03.tmp

Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

Download Submit
C:\Windows\SysWOW64\regsvr32mgr.exe

Filesize
97KB

MD5
ef5dc2521333fb418bd5518f1db3fd08

SHA1
3d5e8d6dbf09a599f674fe9d6c1d736b0c31cb70

SHA256
75bfc7c1f54f2579541c35f721a6bbd9083c7208bd989624ceb25f16bd03afbe

SHA512
8768e95f5539dc61350f552d575c683e20e000f41283701c9c5f393da40975a02a7d432374c72565f3e1848266ee94e20d905f62b849f91f3c956b7980d87882

Download Submit
memory/384-0-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download
memory/4288-5-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/4288-6-0x0000000000400000-0x000000000042C1D8-memory.dmp

Filesize
176KB

Download

Analysis

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