ramnit | eeac57423fed14cb119754de6adb661fdb07c3fa78cc7af41fcfc91f90a172f7

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 12:34

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General

Target

eeac57423fed14cb119754de6adb661fdb07c3fa78cc7af41fcfc91f90a172f7.dll
Size

287KB
MD5

306d394cccfd7f7aa8864ff2ef9019db
SHA1

0927ffe14ce2d7041e284a2ead44d62da91c4606
SHA256

eeac57423fed14cb119754de6adb661fdb07c3fa78cc7af41fcfc91f90a172f7
SHA512

1834ef5c580986940fba8786eec6fad9c0457f3875959240778f8c90115137377bc584c3f314a9040ef076b8e730ad3dd11dc4a95dbb3bd4ff1a756cada39f44
SSDEEP

3072:fCuuNCRs/Pj03pJEEC9ti9pocimFFVW6E1fZim4v5TRRJBYeBTg4vRPW9vc/Bm6f:fCIGPj038tAgFMldWNX+2ehIRAf

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
4624	rundll32mgr.exe
264	WaterMark.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4624-12-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4624-16-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4624-20-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4624-15-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4624-13-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4624-10-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/264-33-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4624-9-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4624-7-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/264-42-0x0000000000400000-0x000000000043A000-memory.dmp	upx
behavioral2/memory/264-41-0x0000000000400000-0x000000000043A000-memory.dmp	upx
behavioral2/memory/264-44-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/264-45-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\pxA4DB.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
3808	4572	WerFault.exe	83
2636	2924	WerFault.exe	88

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 31 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "666111098"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "441203872"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\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-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{53566BC6-BC73-11EF-A7EA-CE95CE932DF6} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31150208"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31150208"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "668767071"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31150208"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "666111098"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
264	WaterMark.exe
264	WaterMark.exe
264	WaterMark.exe
264	WaterMark.exe
264	WaterMark.exe
264	WaterMark.exe
264	WaterMark.exe
264	WaterMark.exe
264	WaterMark.exe
264	WaterMark.exe
264	WaterMark.exe
264	WaterMark.exe
264	WaterMark.exe
264	WaterMark.exe
264	WaterMark.exe
264	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	264	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3756	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3756	iexplore.exe
3756	iexplore.exe
3296	IEXPLORE.EXE
3296	IEXPLORE.EXE
3296	IEXPLORE.EXE
3296	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
4624	rundll32mgr.exe
264	WaterMark.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 3020 wrote to memory of 4572	3020	rundll32.exe	83
PID 3020 wrote to memory of 4572	3020	rundll32.exe	83
PID 3020 wrote to memory of 4572	3020	rundll32.exe	83
PID 4572 wrote to memory of 4624	4572	rundll32.exe	84
PID 4572 wrote to memory of 4624	4572	rundll32.exe	84
PID 4572 wrote to memory of 4624	4572	rundll32.exe	84
PID 4624 wrote to memory of 264	4624	rundll32mgr.exe	86
PID 4624 wrote to memory of 264	4624	rundll32mgr.exe	86
PID 4624 wrote to memory of 264	4624	rundll32mgr.exe	86
PID 264 wrote to memory of 2924	264	WaterMark.exe	88
PID 264 wrote to memory of 2924	264	WaterMark.exe	88
PID 264 wrote to memory of 2924	264	WaterMark.exe	88
PID 264 wrote to memory of 2924	264	WaterMark.exe	88
PID 264 wrote to memory of 2924	264	WaterMark.exe	88
PID 264 wrote to memory of 2924	264	WaterMark.exe	88
PID 264 wrote to memory of 2924	264	WaterMark.exe	88
PID 264 wrote to memory of 2924	264	WaterMark.exe	88
PID 264 wrote to memory of 2924	264	WaterMark.exe	88
PID 264 wrote to memory of 3684	264	WaterMark.exe	92
PID 264 wrote to memory of 3684	264	WaterMark.exe	92
PID 264 wrote to memory of 3756	264	WaterMark.exe	93
PID 264 wrote to memory of 3756	264	WaterMark.exe	93
PID 3756 wrote to memory of 3296	3756	iexplore.exe	95
PID 3756 wrote to memory of 3296	3756	iexplore.exe	95
PID 3756 wrote to memory of 3296	3756	iexplore.exe	95

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\eeac57423fed14cb119754de6adb661fdb07c3fa78cc7af41fcfc91f90a172f7.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3020
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\eeac57423fed14cb119754de6adb661fdb07c3fa78cc7af41fcfc91f90a172f7.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4572
- - 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:4624
  - - 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:264
    - - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        5⤵
        
        PID:2924
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2924 -s 204
        6⤵
        Program crash
        
        PID:2636
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        
        PID:3684
    - - 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:3756
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3756 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:3296
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4572 -s 608
    3⤵
    - Program crash
    PID:3808

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4572 -ip 4572
1⤵
PID:4932

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 2924 -ip 2924
1⤵
PID:4068

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
4d59e7390ab5b8e0ceddbec7c7eebe3d

SHA1
bc7512b00bd7fa687a7de2650299a50159d772c7

SHA256
40338f7d48f0d87c60ca94de069692026343af89806d4fcd01fe6a158510383a

SHA512
e96ef66fb6af761f69c15cc4573231981496f32807eea25adb232743eda4602fc423f4ec47e844d15ec9d3f256433424e416b214e43cb1e308ab3b6f74cabf35

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\VKYZDMA5\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

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

Filesize
120KB

MD5
6c5a1f8cb177e400928e970bf3023e42

SHA1
df335cb43d37ed50cb198e35b574fe284e70134e

SHA256
4e79c0272252c466b18fcace7b7ec9ef1551587d560f2a9697eeba5e3a5cac6f

SHA512
767efe61e94933ea7799f78d6cf9d86e7b2494077295915f4a91c605a30e9685ce297d43c61b74d744038a728f91525590c2221230056e2486c79333a0179673

Download Submit
memory/264-43-0x00000000776C2000-0x00000000776C3000-memory.dmp

Filesize
4KB

Download
memory/264-40-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/264-44-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/264-41-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/264-34-0x0000000000060000-0x0000000000061000-memory.dmp

Filesize
4KB

Download
memory/264-42-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/264-24-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/264-29-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/264-35-0x00000000776C2000-0x00000000776C3000-memory.dmp

Filesize
4KB

Download
memory/264-33-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/264-45-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2924-37-0x0000000000340000-0x0000000000341000-memory.dmp

Filesize
4KB

Download
memory/2924-38-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/4572-39-0x0000000010000000-0x000000001004C000-memory.dmp

Filesize
304KB

Download
memory/4572-1-0x0000000010000000-0x000000001004C000-memory.dmp

Filesize
304KB

Download
memory/4624-13-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4624-6-0x0000000000401000-0x0000000000405000-memory.dmp

Filesize
16KB

Download
memory/4624-7-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4624-8-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/4624-9-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4624-10-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4624-11-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/4624-15-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4624-22-0x0000000000401000-0x0000000000405000-memory.dmp

Filesize
16KB

Download
memory/4624-20-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4624-16-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4624-12-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4624-5-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download