ramnit | f2db305bb87e418623361ca81fc600864d14e270f3b23a4a0248b9ada86c1543

General

Target

53b233c6c23409aa87d7982565849165.dll
Size

166KB
MD5

53b233c6c23409aa87d7982565849165
SHA1

f3b0d0f6869a017892d7838d60fa9738d648d0e5
SHA256

f2db305bb87e418623361ca81fc600864d14e270f3b23a4a0248b9ada86c1543
SHA512

2f2fa21b020fcc3b9f76b2874c74b0a37cf4c7da96dab5111bc3fa481bd767bcd503a476998fc1d0daf5cb5b2b315124c71486ef33325279670eafd55fdb1ef0
SSDEEP

3072:pTU56gVxj27NevROEuPvisOpkTv7L2GQ6uE:G4wRj+qYvW4uE

Score

10^/10

ramnit banker 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

Executes dropped EXE 2 IoCs

pid	Process
2196	regsvr32mgr.exe
4292	WaterMark.exe

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2196-9-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4292-22-0x0000000000400000-0x0000000000435000-memory.dmp	upx
behavioral2/memory/4292-29-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2196-15-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2196-11-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2196-10-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2196-12-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2196-8-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2196-7-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2196-6-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4292-39-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4292-40-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

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

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	regsvr32mgr.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px4556.tmp	regsvr32mgr.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	regsvr32mgr.exe

Program crash 1 IoCs

pid	pid_target	Process
3844	4788	WerFault.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
4292	WaterMark.exe
4292	WaterMark.exe
4292	WaterMark.exe
4292	WaterMark.exe
4292	WaterMark.exe
4292	WaterMark.exe
4292	WaterMark.exe
4292	WaterMark.exe
4292	WaterMark.exe
4292	WaterMark.exe
4292	WaterMark.exe
4292	WaterMark.exe
4292	WaterMark.exe
4292	WaterMark.exe
4292	WaterMark.exe
4292	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4292	WaterMark.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2196	regsvr32mgr.exe
4292	WaterMark.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 3452 wrote to memory of 1512	3452	regsvr32.exe	16
PID 3452 wrote to memory of 1512	3452	regsvr32.exe	16
PID 3452 wrote to memory of 1512	3452	regsvr32.exe	16
PID 1512 wrote to memory of 2196	1512	regsvr32.exe	27
PID 1512 wrote to memory of 2196	1512	regsvr32.exe	27
PID 1512 wrote to memory of 2196	1512	regsvr32.exe	27
PID 2196 wrote to memory of 4292	2196	regsvr32mgr.exe	26
PID 2196 wrote to memory of 4292	2196	regsvr32mgr.exe	26
PID 2196 wrote to memory of 4292	2196	regsvr32mgr.exe	26
PID 4292 wrote to memory of 4788	4292	WaterMark.exe	25
PID 4292 wrote to memory of 4788	4292	WaterMark.exe	25
PID 4292 wrote to memory of 4788	4292	WaterMark.exe	25
PID 4292 wrote to memory of 4788	4292	WaterMark.exe	25
PID 4292 wrote to memory of 4788	4292	WaterMark.exe	25
PID 4292 wrote to memory of 4788	4292	WaterMark.exe	25
PID 4292 wrote to memory of 4788	4292	WaterMark.exe	25
PID 4292 wrote to memory of 4788	4292	WaterMark.exe	25
PID 4292 wrote to memory of 4788	4292	WaterMark.exe	25
PID 4292 wrote to memory of 3044	4292	WaterMark.exe	64
PID 4292 wrote to memory of 3044	4292	WaterMark.exe	64
PID 4292 wrote to memory of 2796	4292	WaterMark.exe	65
PID 4292 wrote to memory of 2796	4292	WaterMark.exe	65

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\53b233c6c23409aa87d7982565849165.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3452
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\53b233c6c23409aa87d7982565849165.dll
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:1512
- - C:\Windows\SysWOW64\regsvr32mgr.exe
    C:\Windows\SysWOW64\regsvr32mgr.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - Suspicious use of UnmapMainImage
    - Suspicious use of WriteProcessMemory
    PID:2196

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4788 -ip 4788
1⤵
PID:4392

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4788 -s 204
1⤵
- Program crash
PID:3844

C:\Windows\SysWOW64\svchost.exe
C:\Windows\system32\svchost.exe
1⤵
PID:4788

C:\Program Files (x86)\Microsoft\WaterMark.exe
"C:\Program Files (x86)\Microsoft\WaterMark.exe"
1⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:4292
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe"
  2⤵
  - Modifies Internet Explorer settings
  PID:3044
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3044 CREDAT:17410 /prefetch:2
    3⤵
    PID:1204
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe"
  2⤵
  - Modifies Internet Explorer settings
  PID:2796
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2796 CREDAT:17410 /prefetch:2
    3⤵
    PID:3644

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1512-0-0x0000000074AB0000-0x0000000074ADC000-memory.dmp

Filesize
176KB

Download
memory/2196-5-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2196-14-0x00000000008C0000-0x00000000008C1000-memory.dmp

Filesize
4KB

Download
memory/2196-11-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2196-10-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2196-9-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2196-6-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2196-15-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2196-12-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2196-7-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2196-8-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4292-29-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4292-35-0x0000000077102000-0x0000000077103000-memory.dmp

Filesize
4KB

Download
memory/4292-40-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4292-30-0x0000000000060000-0x0000000000061000-memory.dmp

Filesize
4KB

Download
memory/4292-32-0x0000000077102000-0x0000000077103000-memory.dmp

Filesize
4KB

Download
memory/4292-22-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/4292-36-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/4292-39-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4788-33-0x00000000004C0000-0x00000000004C1000-memory.dmp

Filesize
4KB

Download
memory/4788-34-0x00000000004E0000-0x00000000004E1000-memory.dmp

Filesize
4KB

Download

Analysis

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