ramnit | 63f8ba4cfce6ea09b3596df907c15243479550a84334e6240080cf5581fe0627

Analysis

max time kernel
94s
max time network
115s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17-12-2024 19:43

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General

Target

63f8ba4cfce6ea09b3596df907c15243479550a84334e6240080cf5581fe0627N.dll
Size

188KB
MD5

22d1cfd40b4a31eb48ae8418c2e7e120
SHA1

3d9ef1a1d1a5ca2e7aa746f008cf57cf2eefa60c
SHA256

63f8ba4cfce6ea09b3596df907c15243479550a84334e6240080cf5581fe0627
SHA512

11ea1f99fbcba8ea66ad52bac0e480ed937dc4910dc9efd4698a578f249908cc8dd1ca69a91808816c59995eb08c597e4c1b4388a1555358846e37dc1a6264f8
SSDEEP

3072:wkk/wxp+etRwew56OxxejSGuBoBp2QzrZHBMtYsIrfy9Qi:zDHA6dj1BrZHutWrfc

Score

10^/10

ramnit banker discovery 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
Ramnit family
ramnit

Executes dropped EXE 2 IoCs

pid	Process
1304	rundll32mgr.exe
2968	WaterMark.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1304-7-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1304-12-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1304-13-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2968-28-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1304-11-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1304-9-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1304-6-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1304-5-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2968-35-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2968-36-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px9D49.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
1540	4000	WerFault.exe	86

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32mgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WaterMark.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 33 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "338483271"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "343327536"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31150268"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\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
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "338483271"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31150268"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31150268"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "343327536"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "441229609"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{3FB7615F-BCAF-11EF-B319-DA61A5E71E4E} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31150268"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
2968	WaterMark.exe
2968	WaterMark.exe
2968	WaterMark.exe
2968	WaterMark.exe
2968	WaterMark.exe
2968	WaterMark.exe
2968	WaterMark.exe
2968	WaterMark.exe
2968	WaterMark.exe
2968	WaterMark.exe
2968	WaterMark.exe
2968	WaterMark.exe
2968	WaterMark.exe
2968	WaterMark.exe
2968	WaterMark.exe
2968	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2968	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1020	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1020	iexplore.exe
1020	iexplore.exe
4500	IEXPLORE.EXE
4500	IEXPLORE.EXE
4500	IEXPLORE.EXE
4500	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1304	rundll32mgr.exe
2968	WaterMark.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1588 wrote to memory of 1860	1588	rundll32.exe	83
PID 1588 wrote to memory of 1860	1588	rundll32.exe	83
PID 1588 wrote to memory of 1860	1588	rundll32.exe	83
PID 1860 wrote to memory of 1304	1860	rundll32.exe	84
PID 1860 wrote to memory of 1304	1860	rundll32.exe	84
PID 1860 wrote to memory of 1304	1860	rundll32.exe	84
PID 1304 wrote to memory of 2968	1304	rundll32mgr.exe	85
PID 1304 wrote to memory of 2968	1304	rundll32mgr.exe	85
PID 1304 wrote to memory of 2968	1304	rundll32mgr.exe	85
PID 2968 wrote to memory of 4000	2968	WaterMark.exe	86
PID 2968 wrote to memory of 4000	2968	WaterMark.exe	86
PID 2968 wrote to memory of 4000	2968	WaterMark.exe	86
PID 2968 wrote to memory of 4000	2968	WaterMark.exe	86
PID 2968 wrote to memory of 4000	2968	WaterMark.exe	86
PID 2968 wrote to memory of 4000	2968	WaterMark.exe	86
PID 2968 wrote to memory of 4000	2968	WaterMark.exe	86
PID 2968 wrote to memory of 4000	2968	WaterMark.exe	86
PID 2968 wrote to memory of 4000	2968	WaterMark.exe	86
PID 2968 wrote to memory of 1020	2968	WaterMark.exe	91
PID 2968 wrote to memory of 1020	2968	WaterMark.exe	91
PID 2968 wrote to memory of 2016	2968	WaterMark.exe	92
PID 2968 wrote to memory of 2016	2968	WaterMark.exe	92
PID 1020 wrote to memory of 4500	1020	iexplore.exe	94
PID 1020 wrote to memory of 4500	1020	iexplore.exe	94
PID 1020 wrote to memory of 4500	1020	iexplore.exe	94

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\63f8ba4cfce6ea09b3596df907c15243479550a84334e6240080cf5581fe0627N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1588
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\63f8ba4cfce6ea09b3596df907c15243479550a84334e6240080cf5581fe0627N.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1860
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of UnmapMainImage
    - Suspicious use of WriteProcessMemory
    PID:1304
  - - C:\Program Files (x86)\Microsoft\WaterMark.exe
      "C:\Program Files (x86)\Microsoft\WaterMark.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of UnmapMainImage
      Suspicious use of WriteProcessMemory
      PID:2968
    - - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        5⤵
        
        PID:4000
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4000 -s 204
        6⤵
        Program crash
        
        PID:1540
    - - 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:1020
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1020 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4500
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        
        PID:2016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4000 -ip 4000
1⤵
PID:4160

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
641fd00a680e2a2b7c46da9f49d4ac01

SHA1
91342c03f46164a5ffba758b6201387912e09026

SHA256
69b70d73aed768e709b4e26268d4bfbb349d3ed2d7fc7bba042a347b29f1062d

SHA512
004e47e9e0623bf782ad71418257088902bec47d213027287c46393d7a413d69a69fd213df1781d3c49ddde689943d5c5f3ff844fb9cc81c7eeaf331b8a4344f

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
404B

MD5
dad0da1b4c971c2a7a9e5a5ba460ace8

SHA1
ba9c57269c9c215960bc633461dd31b45f009bbb

SHA256
b8f17fe9b2113d1b10a55f576b353c57af4c36f9d5b0eba0857aadc68725c5a4

SHA512
86b7ce2736971573227f3256372f07074bf1ddbac494ebb9cc11a9c0deb57aa541e460dc57ad8aff01bff07cd31d93b3b6cd7db515268b6dcf0c7f69755e8afe

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver21FA.tmp

Filesize
15KB

MD5
1a545d0052b581fbb2ab4c52133846bc

SHA1
62f3266a9b9925cd6d98658b92adec673cbe3dd3

SHA256
557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

SHA512
bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\8R55UT9S\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

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

Filesize
59KB

MD5
0e0f0ae845d89c22bb6385f64a6b85fd

SHA1
0f3f1e7f18ab81572c5ce938d3880d4a5d7100ac

SHA256
5a5b85c582d5d4b3b912ee6789babebf8ae6d87330d0d33d87274841952899dd

SHA512
baec989a6329a2a60d954e83279fd57ba2000f8ed79e7a02d145bf44a5bffcd9a831c63f4b7d44e40c51e40b1dfbe72c5cebac04d0ce7b2295e3fd191b122350

Download Submit
memory/1304-12-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1304-13-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1304-10-0x00000000008E0000-0x00000000008E1000-memory.dmp

Filesize
4KB

Download
memory/1304-7-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1304-11-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1304-9-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1304-6-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1304-5-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1860-1-0x0000000010000000-0x0000000010067000-memory.dmp

Filesize
412KB

Download
memory/2968-34-0x0000000077CB2000-0x0000000077CB3000-memory.dmp

Filesize
4KB

Download
memory/2968-26-0x0000000000910000-0x0000000000911000-memory.dmp

Filesize
4KB

Download
memory/2968-33-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/2968-35-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2968-36-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2968-28-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2968-29-0x0000000077CB2000-0x0000000077CB3000-memory.dmp

Filesize
4KB

Download
memory/4000-31-0x0000000000EB0000-0x0000000000EB1000-memory.dmp

Filesize
4KB

Download
memory/4000-32-0x0000000000E90000-0x0000000000E91000-memory.dmp

Filesize
4KB

Download