ramnit | 87be197e7bbaf9470632ac5d501ddbc28bc2cc44a528fcd0151d5361f6fea1ff

Analysis

max time kernel
118s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
04/12/2022, 02:08

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General

Target

87be197e7bbaf9470632ac5d501ddbc28bc2cc44a528fcd0151d5361f6fea1ff.dll
Size

184KB
MD5

2adf539027acb9ad91b89f339241f8fd
SHA1

fa9accd7f1bc16254d144090dacf2bef7a7e6bd0
SHA256

87be197e7bbaf9470632ac5d501ddbc28bc2cc44a528fcd0151d5361f6fea1ff
SHA512

43ffcad4f8d68c949874c9e8ea8c182c5f4e1641340990bc5e1f8edbfdf7706a8c92dcad5b81caa0569a2f09244efb31315acfd3d72bbc984ec294f771628db8
SSDEEP

3072:Ln4cV8gf2u41Z5tKlwU+1lSepZ2LD1fvEXqbeE:z4y8gOl2YHSepZUlf

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
3856	rundll32mgr.exe
4588	WaterMark.exe

UPX packed file 14 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3856-140-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3856-141-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3856-145-0x0000000000400000-0x0000000000440000-memory.dmp	upx
behavioral2/memory/3856-147-0x0000000000400000-0x0000000000440000-memory.dmp	upx
behavioral2/memory/3856-146-0x0000000000400000-0x0000000000440000-memory.dmp	upx
behavioral2/memory/3856-149-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4588-156-0x0000000000400000-0x0000000000440000-memory.dmp	upx
behavioral2/memory/4588-157-0x0000000000400000-0x0000000000440000-memory.dmp	upx
behavioral2/memory/4588-158-0x0000000000400000-0x0000000000440000-memory.dmp	upx
behavioral2/memory/4588-159-0x0000000000400000-0x0000000000440000-memory.dmp	upx
behavioral2/memory/4588-160-0x0000000000400000-0x0000000000440000-memory.dmp	upx
behavioral2/memory/4588-161-0x0000000000400000-0x0000000000440000-memory.dmp	upx
behavioral2/memory/4588-162-0x0000000000400000-0x0000000000440000-memory.dmp	upx
behavioral2/memory/4588-163-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32mgr.exe	rundll32.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px8CA.tmp	rundll32mgr.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32mgr.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32mgr.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3516	4276	WerFault.exe	82

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "651530898"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "648562131"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31001152"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31001152"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "651686928"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31001152"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "377184805"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31001152"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{46E204F9-7633-11ED-AECB-520B3B914C01} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "648562131"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
4588	WaterMark.exe
4588	WaterMark.exe
4588	WaterMark.exe
4588	WaterMark.exe
4588	WaterMark.exe
4588	WaterMark.exe
4588	WaterMark.exe
4588	WaterMark.exe
4588	WaterMark.exe
4588	WaterMark.exe
4588	WaterMark.exe
4588	WaterMark.exe
4588	WaterMark.exe
4588	WaterMark.exe
4588	WaterMark.exe
4588	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4588	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3912	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3912	iexplore.exe
3912	iexplore.exe
208	IEXPLORE.EXE
208	IEXPLORE.EXE
208	IEXPLORE.EXE
208	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
3856	rundll32mgr.exe
4588	WaterMark.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1864 wrote to memory of 5056	1864	rundll32.exe	79
PID 1864 wrote to memory of 5056	1864	rundll32.exe	79
PID 1864 wrote to memory of 5056	1864	rundll32.exe	79
PID 5056 wrote to memory of 3856	5056	rundll32.exe	80
PID 5056 wrote to memory of 3856	5056	rundll32.exe	80
PID 5056 wrote to memory of 3856	5056	rundll32.exe	80
PID 3856 wrote to memory of 4588	3856	rundll32mgr.exe	81
PID 3856 wrote to memory of 4588	3856	rundll32mgr.exe	81
PID 3856 wrote to memory of 4588	3856	rundll32mgr.exe	81
PID 4588 wrote to memory of 4276	4588	WaterMark.exe	82
PID 4588 wrote to memory of 4276	4588	WaterMark.exe	82
PID 4588 wrote to memory of 4276	4588	WaterMark.exe	82
PID 4588 wrote to memory of 4276	4588	WaterMark.exe	82
PID 4588 wrote to memory of 4276	4588	WaterMark.exe	82
PID 4588 wrote to memory of 4276	4588	WaterMark.exe	82
PID 4588 wrote to memory of 4276	4588	WaterMark.exe	82
PID 4588 wrote to memory of 4276	4588	WaterMark.exe	82
PID 4588 wrote to memory of 4276	4588	WaterMark.exe	82
PID 4588 wrote to memory of 3912	4588	WaterMark.exe	85
PID 4588 wrote to memory of 3912	4588	WaterMark.exe	85
PID 4588 wrote to memory of 4540	4588	WaterMark.exe	86
PID 4588 wrote to memory of 4540	4588	WaterMark.exe	86
PID 3912 wrote to memory of 208	3912	iexplore.exe	88
PID 3912 wrote to memory of 208	3912	iexplore.exe	88
PID 3912 wrote to memory of 208	3912	iexplore.exe	88

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\87be197e7bbaf9470632ac5d501ddbc28bc2cc44a528fcd0151d5361f6fea1ff.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1864
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\87be197e7bbaf9470632ac5d501ddbc28bc2cc44a528fcd0151d5361f6fea1ff.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:5056
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - Suspicious use of UnmapMainImage
    - Suspicious use of WriteProcessMemory
    PID:3856
  - - C:\Program Files (x86)\Microsoft\WaterMark.exe
      "C:\Program Files (x86)\Microsoft\WaterMark.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of UnmapMainImage
      Suspicious use of WriteProcessMemory
      PID:4588
    - - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        5⤵
        
        PID:4276
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4276 -s 208
        6⤵
        Program crash
        
        PID:3516
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:3912
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3912 CREDAT:17410 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:208
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        
        PID:4540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4276 -ip 4276
1⤵
PID:1648

Network

MITRE ATT&CK Enterprise v6

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
92KB

MD5
926010db02a1f272cc0f2cfe2e96f001

SHA1
7211fe3c943c9c3e9c0b78879a5b7cdf86bcc2bb

SHA256
1bbcf3c537e0eb0c5023eb15fdb45bcded037c248818e9b3ca9dcd1931fa1581

SHA512
e58032e57888bc677febdcbbe0ed79564c05f0e703857278c8ac80d50706a55af07941bbf0b91fd6b31ce00c2e08ef0657e0606d2df2f716fd532f81660f9e16

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

Filesize
92KB

MD5
926010db02a1f272cc0f2cfe2e96f001

SHA1
7211fe3c943c9c3e9c0b78879a5b7cdf86bcc2bb

SHA256
1bbcf3c537e0eb0c5023eb15fdb45bcded037c248818e9b3ca9dcd1931fa1581

SHA512
e58032e57888bc677febdcbbe0ed79564c05f0e703857278c8ac80d50706a55af07941bbf0b91fd6b31ce00c2e08ef0657e0606d2df2f716fd532f81660f9e16

Download Submit
C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
92KB

MD5
926010db02a1f272cc0f2cfe2e96f001

SHA1
7211fe3c943c9c3e9c0b78879a5b7cdf86bcc2bb

SHA256
1bbcf3c537e0eb0c5023eb15fdb45bcded037c248818e9b3ca9dcd1931fa1581

SHA512
e58032e57888bc677febdcbbe0ed79564c05f0e703857278c8ac80d50706a55af07941bbf0b91fd6b31ce00c2e08ef0657e0606d2df2f716fd532f81660f9e16

Download Submit
C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
92KB

MD5
926010db02a1f272cc0f2cfe2e96f001

SHA1
7211fe3c943c9c3e9c0b78879a5b7cdf86bcc2bb

SHA256
1bbcf3c537e0eb0c5023eb15fdb45bcded037c248818e9b3ca9dcd1931fa1581

SHA512
e58032e57888bc677febdcbbe0ed79564c05f0e703857278c8ac80d50706a55af07941bbf0b91fd6b31ce00c2e08ef0657e0606d2df2f716fd532f81660f9e16

Download Submit
memory/3856-147-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3856-137-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3856-140-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3856-141-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3856-149-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3856-145-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3856-146-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4588-148-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4588-156-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4588-157-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4588-158-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4588-159-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4588-160-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4588-161-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4588-162-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4588-163-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5056-133-0x0000000010000000-0x000000001002F000-memory.dmp

Filesize
188KB

Download