ramnit | 9b964db155cf55d16bbd194abdc0efa95c31bf17cd92b42cb1297ef89690ede7

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 02:27

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General

Target

9b964db155cf55d16bbd194abdc0efa95c31bf17cd92b42cb1297ef89690ede7N.dll
Size

216KB
MD5

a98b7fe101fb649b40ad68a6e9527320
SHA1

3da05f58c791332f73b4cc8e12322b549704a268
SHA256

9b964db155cf55d16bbd194abdc0efa95c31bf17cd92b42cb1297ef89690ede7
SHA512

ff13b28f627f01134539cdaaf5ef107abcc0799d44d5993e54da7ce3672932a41eae8d25206f3571f244dc93170693af0157756b6710c12f0b0c8c947021de9d
SSDEEP

3072:xnMoFkOKCg3CXmSSZlzgeBTg4vRPo5NNFs+XNtUU/chmcFTulOVq5pNOOhFmugEl:xMJOWK4l0wqOVq1VhFd7JiW

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
4568	rundll32mgr.exe
2780	WaterMark.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4568-6-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2780-15-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2780-13-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4568-12-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2780-22-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2780-24-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\pxB1CB.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
1420	3412	WerFault.exe	85

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
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1318695116"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "441167430"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31150123"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31150123"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1317288742"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{7A1388F7-BC1E-11EF-BEF1-C67090DD1599} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1317288742"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31150123"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31150123"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1318695116"	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
2780	WaterMark.exe
2780	WaterMark.exe
2780	WaterMark.exe
2780	WaterMark.exe
2780	WaterMark.exe
2780	WaterMark.exe
2780	WaterMark.exe
2780	WaterMark.exe
2780	WaterMark.exe
2780	WaterMark.exe
2780	WaterMark.exe
2780	WaterMark.exe
2780	WaterMark.exe
2780	WaterMark.exe
2780	WaterMark.exe
2780	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2780	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
920	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
920	iexplore.exe
920	iexplore.exe
3948	IEXPLORE.EXE
3948	IEXPLORE.EXE
3948	IEXPLORE.EXE
3948	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 4488 wrote to memory of 4968	4488	rundll32.exe	82
PID 4488 wrote to memory of 4968	4488	rundll32.exe	82
PID 4488 wrote to memory of 4968	4488	rundll32.exe	82
PID 4968 wrote to memory of 4568	4968	rundll32.exe	83
PID 4968 wrote to memory of 4568	4968	rundll32.exe	83
PID 4968 wrote to memory of 4568	4968	rundll32.exe	83
PID 4568 wrote to memory of 2780	4568	rundll32mgr.exe	84
PID 4568 wrote to memory of 2780	4568	rundll32mgr.exe	84
PID 4568 wrote to memory of 2780	4568	rundll32mgr.exe	84
PID 2780 wrote to memory of 3412	2780	WaterMark.exe	85
PID 2780 wrote to memory of 3412	2780	WaterMark.exe	85
PID 2780 wrote to memory of 3412	2780	WaterMark.exe	85
PID 2780 wrote to memory of 3412	2780	WaterMark.exe	85
PID 2780 wrote to memory of 3412	2780	WaterMark.exe	85
PID 2780 wrote to memory of 3412	2780	WaterMark.exe	85
PID 2780 wrote to memory of 3412	2780	WaterMark.exe	85
PID 2780 wrote to memory of 3412	2780	WaterMark.exe	85
PID 2780 wrote to memory of 3412	2780	WaterMark.exe	85
PID 2780 wrote to memory of 920	2780	WaterMark.exe	89
PID 2780 wrote to memory of 920	2780	WaterMark.exe	89
PID 2780 wrote to memory of 4584	2780	WaterMark.exe	90
PID 2780 wrote to memory of 4584	2780	WaterMark.exe	90
PID 920 wrote to memory of 3948	920	iexplore.exe	91
PID 920 wrote to memory of 3948	920	iexplore.exe	91
PID 920 wrote to memory of 3948	920	iexplore.exe	91

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9b964db155cf55d16bbd194abdc0efa95c31bf17cd92b42cb1297ef89690ede7N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4488
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\9b964db155cf55d16bbd194abdc0efa95c31bf17cd92b42cb1297ef89690ede7N.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4968
- - 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 WriteProcessMemory
    PID:4568
  - - 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 WriteProcessMemory
      PID:2780
    - - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        5⤵
        
        PID:3412
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3412 -s 204
        6⤵
        Program crash
        
        PID:1420
    - - 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:920
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:920 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:3948
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        
        PID:4584

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3412 -ip 3412
1⤵
PID:3392

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
ec237169ada59f1945749967a6d3d7f0

SHA1
e8fe32e8fa527409463d3fa0d63b6bdf709d7bd6

SHA256
b783f55456ca301f00aab79b6a0720bfb2450aefd094e6026231fab663152d70

SHA512
d5b5bff9f6afb36817c2c556e67c4ed7fc787a51bef623eb7150b596cc4cc88bee4b10b5eccae2c2ed0055653166f68bf75f2375ce4689666eb42330361de2d5

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

Filesize
404B

MD5
4445603382bcc6db1afa98d60b02af62

SHA1
150d1cb0967e1ea6ed2325ca488bd2aff8acef9d

SHA256
ed74257be332d59521bc1d92fcf71d9f72efbbc4a1a9965c2d0f1083803b71b0

SHA512
7f26164cfccda22b797f9beeccca0e9978e0ebb398a7e7438607166e5220c74dd4336fb7959440f81d23cfd50deada168ac119b5716ed0ab887c596bbb62d021

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver3515.tmp

Filesize
15KB

MD5
1a545d0052b581fbb2ab4c52133846bc

SHA1
62f3266a9b9925cd6d98658b92adec673cbe3dd3

SHA256
557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

SHA512
bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\0GUUC90F\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

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

Filesize
65KB

MD5
849ef19ec0155d79d4fa5bfb5657b106

SHA1
eb7e7ff208ecb40d35755d8f36e31e2482166299

SHA256
8b853e963eab5aa857b640be1d07d605a8bf6dd8bdf8884505b05034bbd87e04

SHA512
30384d9943f7eca4efbdcac52d3dd9c14446a2d75dc04ce4047feabe037c5177138f6bdcb055939dcc47608dfb50a54c9676f795d850c9a9de353f90252053a2

Download Submit
memory/2780-21-0x00000000777D2000-0x00000000777D3000-memory.dmp

Filesize
4KB

Download
memory/2780-22-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2780-15-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2780-14-0x0000000001F30000-0x0000000001F31000-memory.dmp

Filesize
4KB

Download
memory/2780-13-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2780-19-0x0000000001F40000-0x0000000001F41000-memory.dmp

Filesize
4KB

Download
memory/2780-20-0x00000000777D2000-0x00000000777D3000-memory.dmp

Filesize
4KB

Download
memory/2780-24-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3412-17-0x00000000004F0000-0x00000000004F1000-memory.dmp

Filesize
4KB

Download
memory/3412-18-0x00000000004D0000-0x00000000004D1000-memory.dmp

Filesize
4KB

Download
memory/4568-12-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4568-6-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4568-5-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4968-0-0x0000000010000000-0x000000001003A000-memory.dmp

Filesize
232KB

Download