ramnit | 5b85b907741022610908ad8b149fa5a9cd6976bcf2ba0c40683a45e6bac53535

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
14-01-2025 01:38

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General

Target

5b85b907741022610908ad8b149fa5a9cd6976bcf2ba0c40683a45e6bac53535.dll
Size

389KB
MD5

afc5f03c35e4b6a41443a9ec328b320e
SHA1

3df42dc1fe928a12a020df26d362685a680f26f1
SHA256

5b85b907741022610908ad8b149fa5a9cd6976bcf2ba0c40683a45e6bac53535
SHA512

5098fbbfa2005952658437b1c737f38c0bd47f672517b27d789853a6c115776587e5fbdf7d7127e0d9fc99d9500acac8142d2ec2849694ca319173c336712113
SSDEEP

6144:V0IEu0/l7rUdoqWMvjcw3sWSAoITM+NPUHFWnpKgqTmayCKLCZV:879qXvjRc5AoIY+NPUlWnwnTmayRLCD

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 1 IoCs

pid	Process
4992	rundll32mgr.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4992-6-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/4992-12-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/4992-11-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/4992-7-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/4992-5-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/4992-9-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/4992-14-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/4992-13-0x0000000000400000-0x000000000041A000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 3 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	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 32 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\GPU	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\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "294670507"	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\VersionManager\LastTTLLowDateTime = "1251635200"	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\LastCheckForUpdateHighDateTime = "31155749"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31155749"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{3CF2504E-D218-11EF-BEF1-CA65FB447F0B} = "0"	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
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\VersionManager	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\FullScreen = "no"	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\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	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\LastCheckForUpdateHighDateTime = "31155749"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "292326322"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "443583676"	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\VersionManager\LastUpdateLowDateTime = "292326322"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31155749"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "294670507"	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\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	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
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4992	rundll32mgr.exe
4992	rundll32mgr.exe
4992	rundll32mgr.exe
4992	rundll32mgr.exe
4992	rundll32mgr.exe
4992	rundll32mgr.exe
4992	rundll32mgr.exe
4992	rundll32mgr.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4992	rundll32mgr.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1364	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1364	iexplore.exe
1364	iexplore.exe
3356	IEXPLORE.EXE
3356	IEXPLORE.EXE
3356	IEXPLORE.EXE
3356	IEXPLORE.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
4992	rundll32mgr.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3096 wrote to memory of 3760	3096	rundll32.exe	84
PID 3096 wrote to memory of 3760	3096	rundll32.exe	84
PID 3096 wrote to memory of 3760	3096	rundll32.exe	84
PID 3760 wrote to memory of 4992	3760	rundll32.exe	85
PID 3760 wrote to memory of 4992	3760	rundll32.exe	85
PID 3760 wrote to memory of 4992	3760	rundll32.exe	85
PID 4992 wrote to memory of 1364	4992	rundll32mgr.exe	86
PID 4992 wrote to memory of 1364	4992	rundll32mgr.exe	86
PID 1364 wrote to memory of 3356	1364	iexplore.exe	87
PID 1364 wrote to memory of 3356	1364	iexplore.exe	87
PID 1364 wrote to memory of 3356	1364	iexplore.exe	87

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5b85b907741022610908ad8b149fa5a9cd6976bcf2ba0c40683a45e6bac53535.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3096
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\5b85b907741022610908ad8b149fa5a9cd6976bcf2ba0c40683a45e6bac53535.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3760
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - 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:4992
  - - C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of FindShellTrayWindow
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:1364
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1364 CREDAT:17410 /prefetch:2
        5⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:3356

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
4678c6b9e04d71f22ad272e0502cdb5e

SHA1
3f4cda0c3979c8f87b48914dd58b7eec0d480738

SHA256
8a2e74caaacdb17295780859af0882ff7e55a14ba77b04ab4656462c44adb673

SHA512
b347198672efdfb51dfdc266aa96b463fc8ee2bb260f9b493055849be7805c38b0c176d25bece406106d9d2e526c5948579f53d38737517496c1c81a7f9a2bbf

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

Filesize
404B

MD5
d06ca1b7255eb08adecb9e3a1bab41b5

SHA1
d7b35d405e7f9c43afca87a226b5a75cae1598e7

SHA256
89b72b98f9ce36e6c4d12936439c1f47979ffea23915c22adf19e311bdd70d08

SHA512
4b82a39b5f943e2d3861c27f9335db49b6a09723fd84565aac4fb58a612be256bc901093412efa549d129b8aea4013955f1fe6c565d7fb07fac0736fef43baa0

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verE60A.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
54KB

MD5
fba9053e3a7f286a68a072f5d1b57b42

SHA1
19c4800e8de1e83ff7bf0b96a96563e8430ce9f3

SHA256
5675295a26c3839803fd25fb667f2be09c2b6bf3412202a09c3dfc9a46eb4ca4

SHA512
ee53bbd9531801df780279da49bd34863513db67fbacbd6b0abb844d02cb76f5e86ed39ad28585b27aa42d3659a8fc9f3d1459f92f81eca970e69bac7c403c64

Download Submit
memory/3760-0-0x0000000010000000-0x0000000010068000-memory.dmp

Filesize
416KB

Download
memory/4992-10-0x00000000007F0000-0x00000000007F1000-memory.dmp

Filesize
4KB

Download
memory/4992-9-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/4992-5-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/4992-16-0x00000000022A0000-0x00000000022A1000-memory.dmp

Filesize
4KB

Download
memory/4992-14-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/4992-13-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/4992-17-0x00000000778B2000-0x00000000778B3000-memory.dmp

Filesize
4KB

Download
memory/4992-19-0x00000000778B2000-0x00000000778B3000-memory.dmp

Filesize
4KB

Download
memory/4992-7-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/4992-11-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/4992-12-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/4992-6-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download