ramnit | 13a4ed853128ae1db4580c73eed8c6a1a181219b919b11d230fabd82c19425ca

Analysis

max time kernel
123s
max time network
185s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
01/01/2024, 09:51

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General

Target

c6925e3f5e044db46a29b2648e49199c.exe
Size

69KB
MD5

c6925e3f5e044db46a29b2648e49199c
SHA1

5adda1e9a96ee238b51a8acdfa315173dc8f6df2
SHA256

13a4ed853128ae1db4580c73eed8c6a1a181219b919b11d230fabd82c19425ca
SHA512

fd1707fe04ced584eede216f103a12d8c669f014ee409ffcac5df762bff8de02cc1bf93868fc492a46d5af7f9ceccabc26ed1028d241512fb6af7e526a4ece03
SSDEEP

1536:SVZnxm6MG9xgfrvEaoiT/GyphjXDYjKwttoswRmhApE:CnxwgxgfR/DVG7wBpE

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
2540	WaterMark.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4356-4-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4356-8-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4356-7-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4356-6-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4356-3-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4356-2-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2540-23-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4356-13-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2540-30-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px23EE.tmp	c6925e3f5e044db46a29b2648e49199c.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	c6925e3f5e044db46a29b2648e49199c.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	c6925e3f5e044db46a29b2648e49199c.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4472	5076	WerFault.exe	92

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "909667871"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "918105196"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{61CC7C2C-B024-11EE-9A4E-C6E29C351F1E} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31081521"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "411703057"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\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-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "909667871"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31081521"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31081521"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
2540	WaterMark.exe
2540	WaterMark.exe
2540	WaterMark.exe
2540	WaterMark.exe
2540	WaterMark.exe
2540	WaterMark.exe
2540	WaterMark.exe
2540	WaterMark.exe
2540	WaterMark.exe
2540	WaterMark.exe
2540	WaterMark.exe
2540	WaterMark.exe
2540	WaterMark.exe
2540	WaterMark.exe
2540	WaterMark.exe
2540	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2540	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
652	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
652	iexplore.exe
652	iexplore.exe
1660	IEXPLORE.EXE
1660	IEXPLORE.EXE
1660	IEXPLORE.EXE
1660	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
4356	c6925e3f5e044db46a29b2648e49199c.exe
2540	WaterMark.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4356 wrote to memory of 2540	4356	c6925e3f5e044db46a29b2648e49199c.exe	95
PID 4356 wrote to memory of 2540	4356	c6925e3f5e044db46a29b2648e49199c.exe	95
PID 4356 wrote to memory of 2540	4356	c6925e3f5e044db46a29b2648e49199c.exe	95
PID 2540 wrote to memory of 5076	2540	WaterMark.exe	92
PID 2540 wrote to memory of 5076	2540	WaterMark.exe	92
PID 2540 wrote to memory of 5076	2540	WaterMark.exe	92
PID 2540 wrote to memory of 5076	2540	WaterMark.exe	92
PID 2540 wrote to memory of 5076	2540	WaterMark.exe	92
PID 2540 wrote to memory of 5076	2540	WaterMark.exe	92
PID 2540 wrote to memory of 5076	2540	WaterMark.exe	92
PID 2540 wrote to memory of 5076	2540	WaterMark.exe	92
PID 2540 wrote to memory of 5076	2540	WaterMark.exe	92
PID 2540 wrote to memory of 3260	2540	WaterMark.exe	98
PID 2540 wrote to memory of 3260	2540	WaterMark.exe	98
PID 2540 wrote to memory of 652	2540	WaterMark.exe	99
PID 2540 wrote to memory of 652	2540	WaterMark.exe	99
PID 652 wrote to memory of 1660	652	iexplore.exe	100
PID 652 wrote to memory of 1660	652	iexplore.exe	100
PID 652 wrote to memory of 1660	652	iexplore.exe	100

C:\Users\Admin\AppData\Local\Temp\c6925e3f5e044db46a29b2648e49199c.exe
"C:\Users\Admin\AppData\Local\Temp\c6925e3f5e044db46a29b2648e49199c.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:4356
- 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:2540
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    PID:3260
- - 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:652
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:652 CREDAT:17410 /prefetch:2
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:1660

C:\Windows\SysWOW64\svchost.exe
C:\Windows\system32\svchost.exe
1⤵
PID:5076
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5076 -s 208
  2⤵
  - Program crash
  PID:4472

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 5076 -ip 5076
1⤵
PID:1552

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Microsoft\WaterMark.exe

Filesize
69KB

MD5
c6925e3f5e044db46a29b2648e49199c

SHA1
5adda1e9a96ee238b51a8acdfa315173dc8f6df2

SHA256
13a4ed853128ae1db4580c73eed8c6a1a181219b919b11d230fabd82c19425ca

SHA512
fd1707fe04ced584eede216f103a12d8c669f014ee409ffcac5df762bff8de02cc1bf93868fc492a46d5af7f9ceccabc26ed1028d241512fb6af7e526a4ece03

Download Submit
memory/2540-24-0x00000000774D2000-0x00000000774D3000-memory.dmp

Filesize
4KB

Download
memory/2540-23-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2540-30-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2540-29-0x00000000774D2000-0x00000000774D3000-memory.dmp

Filesize
4KB

Download
memory/2540-28-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/2540-22-0x0000000000910000-0x0000000000911000-memory.dmp

Filesize
4KB

Download
memory/4356-13-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4356-4-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4356-8-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4356-2-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4356-0-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4356-3-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4356-5-0x00000000008B0000-0x00000000008B1000-memory.dmp

Filesize
4KB

Download
memory/4356-6-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4356-7-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5076-27-0x00000000008C0000-0x00000000008C1000-memory.dmp

Filesize
4KB

Download
memory/5076-26-0x00000000008E0000-0x00000000008E1000-memory.dmp

Filesize
4KB

Download