ramnit | f8c8781b939b8bf8675c0494a9c65c0bb3cc130dea2187a85e61ffa3c320b6cd

General

Target

4b517c42028fb96a2baddee01c617387.exe
Size

95KB
MD5

4b517c42028fb96a2baddee01c617387
SHA1

9f41039a17ae6c6257fde108ab1b242d1b071d7c
SHA256

f8c8781b939b8bf8675c0494a9c65c0bb3cc130dea2187a85e61ffa3c320b6cd
SHA512

62dfd35ade709bf72ddb6039ce4cfca3b3f90144fd6a12ed6083a2b315d83dfc21d9ae5589b0a0b73c40fc21dcf01d18faacc11dbef6c0645ea8da47f25e0147
SSDEEP

768:D06R0UKzOgnKqGR7//GPc0LOBhvBrHks3IiyhDYQbGmxlNaM+WGa1wuxnzgOYw9Y:BR0vxn3Pc0LCH9MtbvabUDzJYWu3B

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
3448	WaterMark.exe

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2712-4-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2712-11-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3448-27-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3448-26-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3448-24-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2712-9-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2712-8-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2712-7-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2712-5-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2712-2-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3448-33-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	4b517c42028fb96a2baddee01c617387.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px4A09.tmp	4b517c42028fb96a2baddee01c617387.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	4b517c42028fb96a2baddee01c617387.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2112	5088	WerFault.exe	15

Modifies Internet Explorer settings 1 TTPs 14 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{A760EA8B-A46A-11EE-9ECD-42E20219F0C2} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
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\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
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\WindowsSearch	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
3448	WaterMark.exe
3448	WaterMark.exe
3448	WaterMark.exe
3448	WaterMark.exe
3448	WaterMark.exe
3448	WaterMark.exe
3448	WaterMark.exe
3448	WaterMark.exe
3448	WaterMark.exe
3448	WaterMark.exe
3448	WaterMark.exe
3448	WaterMark.exe
3448	WaterMark.exe
3448	WaterMark.exe
3448	WaterMark.exe
3448	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3448	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
760	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
760	iexplore.exe
760	iexplore.exe
5072	IEXPLORE.EXE
5072	IEXPLORE.EXE
5072	IEXPLORE.EXE
5072	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2712	4b517c42028fb96a2baddee01c617387.exe
3448	WaterMark.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2712 wrote to memory of 3448	2712	4b517c42028fb96a2baddee01c617387.exe	22
PID 2712 wrote to memory of 3448	2712	4b517c42028fb96a2baddee01c617387.exe	22
PID 2712 wrote to memory of 3448	2712	4b517c42028fb96a2baddee01c617387.exe	22
PID 3448 wrote to memory of 5088	3448	WaterMark.exe	15
PID 3448 wrote to memory of 5088	3448	WaterMark.exe	15
PID 3448 wrote to memory of 5088	3448	WaterMark.exe	15
PID 3448 wrote to memory of 5088	3448	WaterMark.exe	15
PID 3448 wrote to memory of 5088	3448	WaterMark.exe	15
PID 3448 wrote to memory of 5088	3448	WaterMark.exe	15
PID 3448 wrote to memory of 5088	3448	WaterMark.exe	15
PID 3448 wrote to memory of 5088	3448	WaterMark.exe	15
PID 3448 wrote to memory of 5088	3448	WaterMark.exe	15
PID 3448 wrote to memory of 760	3448	WaterMark.exe	72
PID 3448 wrote to memory of 760	3448	WaterMark.exe	72
PID 3448 wrote to memory of 4012	3448	WaterMark.exe	70
PID 3448 wrote to memory of 4012	3448	WaterMark.exe	70
PID 760 wrote to memory of 5072	760	iexplore.exe	71
PID 760 wrote to memory of 5072	760	iexplore.exe	71
PID 760 wrote to memory of 5072	760	iexplore.exe	71

C:\Users\Admin\AppData\Local\Temp\4b517c42028fb96a2baddee01c617387.exe
"C:\Users\Admin\AppData\Local\Temp\4b517c42028fb96a2baddee01c617387.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2712
- 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:3448
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    PID:4012
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:760

C:\Windows\SysWOW64\svchost.exe
C:\Windows\system32\svchost.exe
1⤵
PID:5088
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 204
  2⤵
  - Program crash
  PID:2112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 5088 -ip 5088
1⤵
PID:4224

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:760 CREDAT:17410 /prefetch:2
1⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:5072

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/2712-0-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2712-1-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2712-4-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2712-11-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2712-2-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2712-5-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2712-6-0x00000000008F0000-0x00000000008F1000-memory.dmp

Filesize
4KB

Download
memory/2712-7-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2712-8-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2712-9-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3448-23-0x0000000000470000-0x0000000000471000-memory.dmp

Filesize
4KB

Download
memory/3448-24-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3448-26-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3448-27-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3448-28-0x0000000077222000-0x0000000077223000-memory.dmp

Filesize
4KB

Download
memory/3448-32-0x0000000077222000-0x0000000077223000-memory.dmp

Filesize
4KB

Download
memory/3448-31-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/3448-33-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5088-29-0x0000000000470000-0x0000000000471000-memory.dmp

Filesize
4KB

Download
memory/5088-30-0x0000000000450000-0x0000000000451000-memory.dmp

Filesize
4KB

Download

Analysis

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