ramnit | 3e582f97ea1fc4110199b03697c6028908068a57f2ee1f7414d6cb8a6964a415

Analysis

max time kernel
94s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
16-12-2024 17:16

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General

Target

3e582f97ea1fc4110199b03697c6028908068a57f2ee1f7414d6cb8a6964a415N.dll
Size

647KB
MD5

e47a4436ff05c8337500d6d3178b4400
SHA1

b252747fe8f13a45b3066fc205a22a84d0f2ee1b
SHA256

3e582f97ea1fc4110199b03697c6028908068a57f2ee1f7414d6cb8a6964a415
SHA512

dc7d304304391f158e41b8ce89c1b3da52d6e0f3a7cf040aa03b5e0c0d95a94859f95ea09a26fd5356718505682aec3393d334107115ddd14996a383250b5d48
SSDEEP

12288:YE7NiOLg18+1/hv5VEipyz7mTWWa8afR2ftuD1xbmiUFNEx:YE3+F5GipwuWWpj+kEx

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
456	rundll32mgr.exe
3560	WaterMark.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/456-6-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/456-9-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/456-12-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/456-11-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/456-13-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/456-7-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/456-5-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3560-27-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3560-28-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3560-36-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3560-38-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3560-39-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px7A9E.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 2 IoCs

pid	pid_target	Process	procid_target
3032	1992	WerFault.exe	84
2140	3816	WerFault.exe	89

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-1-5-21-3756129449-3121373848-4276368241-1000\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\LastCheckForUpdateLowDateTime = "1612307645"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	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\DomainSuggestion\NextUpdateDate = "441134388"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	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\VersionManager\LastUpdateLowDateTime = "1610432546"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31150046"	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\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 (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
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\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{8B8EF1D2-BBD1-11EF-BEF1-CAFD856C81B1} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	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\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31150046"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1610432546"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31150046"	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
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31150046"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1612307645"	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\Main	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
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
3560	WaterMark.exe
3560	WaterMark.exe
3560	WaterMark.exe
3560	WaterMark.exe
3560	WaterMark.exe
3560	WaterMark.exe
3560	WaterMark.exe
3560	WaterMark.exe
3560	WaterMark.exe
3560	WaterMark.exe
3560	WaterMark.exe
3560	WaterMark.exe
3560	WaterMark.exe
3560	WaterMark.exe
3560	WaterMark.exe
3560	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3560	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2016	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2016	iexplore.exe
2016	iexplore.exe
1032	IEXPLORE.EXE
1032	IEXPLORE.EXE
1032	IEXPLORE.EXE
1032	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
456	rundll32mgr.exe
3560	WaterMark.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 316 wrote to memory of 1992	316	rundll32.exe	84
PID 316 wrote to memory of 1992	316	rundll32.exe	84
PID 316 wrote to memory of 1992	316	rundll32.exe	84
PID 1992 wrote to memory of 456	1992	rundll32.exe	85
PID 1992 wrote to memory of 456	1992	rundll32.exe	85
PID 1992 wrote to memory of 456	1992	rundll32.exe	85
PID 456 wrote to memory of 3560	456	rundll32mgr.exe	88
PID 456 wrote to memory of 3560	456	rundll32mgr.exe	88
PID 456 wrote to memory of 3560	456	rundll32mgr.exe	88
PID 3560 wrote to memory of 3816	3560	WaterMark.exe	89
PID 3560 wrote to memory of 3816	3560	WaterMark.exe	89
PID 3560 wrote to memory of 3816	3560	WaterMark.exe	89
PID 3560 wrote to memory of 3816	3560	WaterMark.exe	89
PID 3560 wrote to memory of 3816	3560	WaterMark.exe	89
PID 3560 wrote to memory of 3816	3560	WaterMark.exe	89
PID 3560 wrote to memory of 3816	3560	WaterMark.exe	89
PID 3560 wrote to memory of 3816	3560	WaterMark.exe	89
PID 3560 wrote to memory of 3816	3560	WaterMark.exe	89
PID 3560 wrote to memory of 2016	3560	WaterMark.exe	93
PID 3560 wrote to memory of 2016	3560	WaterMark.exe	93
PID 3560 wrote to memory of 2968	3560	WaterMark.exe	94
PID 3560 wrote to memory of 2968	3560	WaterMark.exe	94
PID 2016 wrote to memory of 1032	2016	iexplore.exe	95
PID 2016 wrote to memory of 1032	2016	iexplore.exe	95
PID 2016 wrote to memory of 1032	2016	iexplore.exe	95

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3e582f97ea1fc4110199b03697c6028908068a57f2ee1f7414d6cb8a6964a415N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:316
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\3e582f97ea1fc4110199b03697c6028908068a57f2ee1f7414d6cb8a6964a415N.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1992
- - 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:456
  - - 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:3560
    - - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        5⤵
        
        PID:3816
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3816 -s 204
        6⤵
        Program crash
        
        PID:2140
    - - 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:2016
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2016 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1032
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        
        PID:2968
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1992 -s 608
    3⤵
    - Program crash
    PID:3032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1992 -ip 1992
1⤵
PID:5016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3816 -ip 3816
1⤵
PID:1216

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
7b0f279189a81abb9963163455a65ca2

SHA1
dc33ee5da0326c82f76a3160326afb1111d6d5b7

SHA256
4f87f10e1c953f9d14fae1cd6c273dee929c19fac046a245de56e9032f89fe84

SHA512
ef12ccd52427aa8720e0b9d940c440fc012d6264366e48a6411253d3dfe36c33ae64a332fc1c2cccad8cc1f2352d1d64d826999fadd63c0faf3ece1b451c347b

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verFE36.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
60KB

MD5
94f2f6ffbba8e7644668b51b39983916

SHA1
63357bbdf90101969117983dbc0d4ed0e713c4d7

SHA256
ede7603855cb37082c241c720a6650988c684eb3bcb263e5dd7b457458940fed

SHA512
d04430ceac70c6fa71d07d9ee82ac2bb5e6c0641d5c9e7e5a3ed39d342e8b198f367676516a55f0653e0b88635a027b9ad220e223145b8be8df281bb6faf7156

Download Submit
memory/456-13-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/456-10-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/456-7-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/456-5-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/456-11-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/456-12-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/456-9-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/456-6-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1992-34-0x0000000074E60000-0x0000000074F08000-memory.dmp

Filesize
672KB

Download
memory/1992-1-0x0000000074E60000-0x0000000074F08000-memory.dmp

Filesize
672KB

Download
memory/3560-30-0x00000000774A2000-0x00000000774A3000-memory.dmp

Filesize
4KB

Download
memory/3560-37-0x00000000774A2000-0x00000000774A3000-memory.dmp

Filesize
4KB

Download
memory/3560-35-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/3560-36-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3560-38-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3560-39-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3560-31-0x0000000020010000-0x0000000020022000-memory.dmp

Filesize
72KB

Download
memory/3560-28-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3560-29-0x0000000000060000-0x0000000000061000-memory.dmp

Filesize
4KB

Download
memory/3560-27-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3816-32-0x0000000000680000-0x0000000000681000-memory.dmp

Filesize
4KB

Download
memory/3816-33-0x0000000000660000-0x0000000000661000-memory.dmp

Filesize
4KB

Download