ramnit | 383df27b84ca79e918b559f8450046bcdce04616aa39a3849b046941d4bc6a52

General

Target

ad69ba9f0c1b6d2e22141d0cfbfdf892.exe
Size

116KB
MD5

ad69ba9f0c1b6d2e22141d0cfbfdf892
SHA1

d0fb135c6dbf4d67e9e80ea422ad0f3a0afcf5ce
SHA256

383df27b84ca79e918b559f8450046bcdce04616aa39a3849b046941d4bc6a52
SHA512

b8f26cbee38afbcf8ff0f76f780d972f1464bada7563cbaf4a957b82b79b897668cb29c4feed22c45f7154d5978d8a0e4303f19fcd5c66663378dbcea6c269fb
SSDEEP

1536:/R0vxn3Pc0LCH9MtbvabUDzJYWu3BvbSGBYYonJasu7o:/R2xn3k0CdM1vabyzJYWqxbFBYBn0e

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 1 IoCs

pid	Process
1404	WaterMark.exe

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral2/memory/228-7-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1404-17-0x0000000000400000-0x000000000042B000-memory.dmp	upx
behavioral2/memory/1404-26-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1404-24-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1404-23-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/228-10-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/228-8-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/228-5-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/228-4-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/228-3-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/228-2-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1404-33-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1404-34-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px3C8C.tmp	ad69ba9f0c1b6d2e22141d0cfbfdf892.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	ad69ba9f0c1b6d2e22141d0cfbfdf892.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	ad69ba9f0c1b6d2e22141d0cfbfdf892.exe

Program crash 1 IoCs

pid	pid_target	Process
1932	4552	WerFault.exe

Modifies Internet Explorer settings 1 TTPs 7 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{DABB87B8-AD8F-11EE-8184-CE055DF4442A} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
1404	WaterMark.exe
1404	WaterMark.exe
1404	WaterMark.exe
1404	WaterMark.exe
1404	WaterMark.exe
1404	WaterMark.exe
1404	WaterMark.exe
1404	WaterMark.exe
1404	WaterMark.exe
1404	WaterMark.exe
1404	WaterMark.exe
1404	WaterMark.exe
1404	WaterMark.exe
1404	WaterMark.exe
1404	WaterMark.exe
1404	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1404	WaterMark.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2804	iexplore.exe
2804	iexplore.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
228	ad69ba9f0c1b6d2e22141d0cfbfdf892.exe
1404	WaterMark.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 228 wrote to memory of 1404	228	ad69ba9f0c1b6d2e22141d0cfbfdf892.exe	24
PID 228 wrote to memory of 1404	228	ad69ba9f0c1b6d2e22141d0cfbfdf892.exe	24
PID 228 wrote to memory of 1404	228	ad69ba9f0c1b6d2e22141d0cfbfdf892.exe	24
PID 1404 wrote to memory of 4552	1404	WaterMark.exe	23
PID 1404 wrote to memory of 4552	1404	WaterMark.exe	23
PID 1404 wrote to memory of 4552	1404	WaterMark.exe	23
PID 1404 wrote to memory of 4552	1404	WaterMark.exe	23
PID 1404 wrote to memory of 4552	1404	WaterMark.exe	23
PID 1404 wrote to memory of 4552	1404	WaterMark.exe	23
PID 1404 wrote to memory of 4552	1404	WaterMark.exe	23
PID 1404 wrote to memory of 4552	1404	WaterMark.exe	23
PID 1404 wrote to memory of 4552	1404	WaterMark.exe	23
PID 1404 wrote to memory of 4708	1404	WaterMark.exe	66
PID 1404 wrote to memory of 4708	1404	WaterMark.exe	66
PID 1404 wrote to memory of 2804	1404	WaterMark.exe	68
PID 1404 wrote to memory of 2804	1404	WaterMark.exe	68
PID 2804 wrote to memory of 4476	2804	iexplore.exe	67
PID 2804 wrote to memory of 4476	2804	iexplore.exe	67
PID 2804 wrote to memory of 4476	2804	iexplore.exe	67

C:\Users\Admin\AppData\Local\Temp\ad69ba9f0c1b6d2e22141d0cfbfdf892.exe
"C:\Users\Admin\AppData\Local\Temp\ad69ba9f0c1b6d2e22141d0cfbfdf892.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:228
- C:\Program Files (x86)\Microsoft\WaterMark.exe
  "C:\Program Files (x86)\Microsoft\WaterMark.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:1404
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    PID:4708
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2804

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4552 -ip 4552
1⤵
PID:4424

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4552 -s 208
1⤵
- Program crash
PID:1932

C:\Windows\SysWOW64\svchost.exe
C:\Windows\system32\svchost.exe
1⤵
PID:4552

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2804 CREDAT:17410 /prefetch:2
1⤵
PID:4476

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/228-3-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/228-2-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/228-1-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/228-10-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/228-0-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/228-4-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/228-5-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/228-8-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/228-7-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/228-6-0x0000000000830000-0x0000000000831000-memory.dmp

Filesize
4KB

Download
memory/1404-24-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1404-26-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1404-23-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1404-28-0x0000000077EA2000-0x0000000077EA3000-memory.dmp

Filesize
4KB

Download
memory/1404-25-0x00000000008A0000-0x00000000008A1000-memory.dmp

Filesize
4KB

Download
memory/1404-17-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1404-32-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/1404-31-0x0000000077EA2000-0x0000000077EA3000-memory.dmp

Filesize
4KB

Download
memory/1404-33-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1404-34-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4552-29-0x0000000000660000-0x0000000000661000-memory.dmp

Filesize
4KB

Download
memory/4552-30-0x0000000000640000-0x0000000000641000-memory.dmp

Filesize
4KB

Download

Analysis

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