ramnit | 8c0b2906057e5311d007a9c4ce1fafa3b9d1127e1a90a5ba3e9b58a7856e3d08

General

Target

8c0b2906057e5311d007a9c4ce1fafa3b9d1127e1a90a5ba3e9b58a7856e3d08.dll
Size

240KB
MD5

ac65db1e725e980edd9b4c424f1867c5
SHA1

0bf6302b6cc72cbbf78d5528a66fe28dec9ec270
SHA256

8c0b2906057e5311d007a9c4ce1fafa3b9d1127e1a90a5ba3e9b58a7856e3d08
SHA512

d21dc424abbaf6b483619a604d7177488743637df049a9873057329be464626574d0cd51bf3cd8e2f30c2c95205900df2cf6d886f82b45616339dc0971365d2b
SSDEEP

3072:43Z4B+8x2fCFIpcLy1n5lB7GrDWwqrlK4tb1sA622USAz3y184p:43KB+8A6FecLq1BwytF6DYC11p

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
3040	regsvr32mgr.exe

Loads dropped DLL 4 IoCs

pid	Process
2028	regsvr32.exe
2028	regsvr32.exe
3040	regsvr32mgr.exe
3040	regsvr32mgr.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3040-14-0x0000000000400000-0x000000000042C1D8-memory.dmp	upx
behavioral1/memory/3040-18-0x0000000000400000-0x000000000042C1D8-memory.dmp	upx
behavioral1/memory/3040-19-0x0000000000400000-0x000000000042D000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 1 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

Modifies registry class 21 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BA5748AA-CD16-4D3F-82F8-AC17CDCA598C}\ = "Multimedia Terminator Container"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BA5748AA-CD16-4D3F-82F8-AC17CDCA598C}\TypeLib\ = "{00000000-0000-0000-0000-000000000000}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MtContain.CMtContainer\CLSID\ = "{BA5748AA-CD16-4D3F-82F8-AC17CDCA598C}"	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\Wow6432Node\CLSID\{BA5748AA-CD16-4D3F-82F8-AC17CDCA598C}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MtContain.CMtContainer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MtContain.CMtContainer\CLSID	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}\VersionIndependentProgID\ = "MtContain.CMtContainer"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MtContain.CMtContainer\CurVer\ = "MtContain.CMtContainer.1"	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
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\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}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MtContain.CMtContainer\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MtContain.CMtContainer.1\ = "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\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8c0b2906057e5311d007a9c4ce1fafa3b9d1127e1a90a5ba3e9b58a7856e3d08.dll"	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\MtContain.CMtContainer\ = "Multimedia Terminator Container"	regsvr32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2476 wrote to memory of 2028	2476	regsvr32.exe	31
PID 2476 wrote to memory of 2028	2476	regsvr32.exe	31
PID 2476 wrote to memory of 2028	2476	regsvr32.exe	31
PID 2476 wrote to memory of 2028	2476	regsvr32.exe	31
PID 2476 wrote to memory of 2028	2476	regsvr32.exe	31
PID 2476 wrote to memory of 2028	2476	regsvr32.exe	31
PID 2476 wrote to memory of 2028	2476	regsvr32.exe	31
PID 2028 wrote to memory of 3040	2028	regsvr32.exe	32
PID 2028 wrote to memory of 3040	2028	regsvr32.exe	32
PID 2028 wrote to memory of 3040	2028	regsvr32.exe	32
PID 2028 wrote to memory of 3040	2028	regsvr32.exe	32

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\8c0b2906057e5311d007a9c4ce1fafa3b9d1127e1a90a5ba3e9b58a7856e3d08.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2476
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\8c0b2906057e5311d007a9c4ce1fafa3b9d1127e1a90a5ba3e9b58a7856e3d08.dll
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2028
- - C:\Windows\SysWOW64\regsvr32mgr.exe
    C:\Windows\SysWOW64\regsvr32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:3040

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:\Windows\SysWOW64\regsvr32mgr.exe

Filesize
97KB

MD5
ef5dc2521333fb418bd5518f1db3fd08

SHA1
3d5e8d6dbf09a599f674fe9d6c1d736b0c31cb70

SHA256
75bfc7c1f54f2579541c35f721a6bbd9083c7208bd989624ceb25f16bd03afbe

SHA512
8768e95f5539dc61350f552d575c683e20e000f41283701c9c5f393da40975a02a7d432374c72565f3e1848266ee94e20d905f62b849f91f3c956b7980d87882

Download Submit
\Users\Admin\AppData\Local\Temp\~TMDCD7.tmp

Filesize
1.2MB

MD5
d124f55b9393c976963407dff51ffa79

SHA1
2c7bbedd79791bfb866898c85b504186db610b5d

SHA256
ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

SHA512
278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

Download Submit
\Users\Admin\AppData\Local\Temp\~TMDCF8.tmp

Filesize
1.1MB

MD5
9b98d47916ead4f69ef51b56b0c2323c

SHA1
290a80b4ded0efc0fd00816f373fcea81a521330

SHA256
96e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b

SHA512
68b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94

Download Submit
memory/2028-1-0x0000000010000000-0x000000001003D000-memory.dmp

Filesize
244KB

Download
memory/3040-9-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/3040-10-0x0000000000400000-0x000000000042C1D8-memory.dmp

Filesize
176KB

Download
memory/3040-14-0x0000000000400000-0x000000000042C1D8-memory.dmp

Filesize
176KB

Download
memory/3040-18-0x0000000000400000-0x000000000042C1D8-memory.dmp

Filesize
176KB

Download
memory/3040-19-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download

Analysis

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