ramnit | 99ef33555f1a9aa46e6f20cef5d73b8517a8b494620877808f50f5a4c0854bd5

Analysis

max time kernel
101s
max time network
133s
platform
windows10-2004_x64
resource
win10v2004-20250410-en
resource tags

arch:x64arch:x86image:win10v2004-20250410-enlocale:en-usos:windows10-2004-x64system
submitted
12/04/2025, 18:46

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General

Target

JaffaCakes118_b2d56ba0aabac5658aadc051bafddc1d.dll
Size

5.5MB
MD5

b2d56ba0aabac5658aadc051bafddc1d
SHA1

667cb5e1cfbe799b5dcbfa8f6f89fbc5376139b1
SHA256

99ef33555f1a9aa46e6f20cef5d73b8517a8b494620877808f50f5a4c0854bd5
SHA512

f30e51cc33b15825898453a047ce9e7f851550aed39577c642989018607959c96106b1009de5263b3871ea5776184fac63661d56217a41fe25ebd1cf5e50b669
SSDEEP

98304:hivlGupvdCf9DpTl4cjg1z+X2kU3D4YJRNhu6VKt9wXgvhiWaOuBuc3hF4pBM3:h0lGgCf5pB4sg1z+X2n3D4GRfu6Vzz

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
4432	rundll32mgr.exe
4296	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
behavioral1/memory/4432-7-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/4432-10-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/4432-13-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/4432-9-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/4432-6-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/4432-5-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/4432-4-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/4296-26-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/4296-27-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/4296-33-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/4296-38-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/4296-39-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px6A53.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
2092	1564	WerFault.exe	91

System Location Discovery: System Language Discovery 1 TTPs 5 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
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 (data)	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff3e0000003e000000c4040000a3020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{75E1595C-17CE-11F0-947A-DAB1868B17CD} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{75E3BB9E-17CE-11F0-947A-DAB1868B17CD} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\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 (data)	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "451248570"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
4296	WaterMark.exe
4296	WaterMark.exe
4296	WaterMark.exe
4296	WaterMark.exe
4296	WaterMark.exe
4296	WaterMark.exe
4296	WaterMark.exe
4296	WaterMark.exe
4296	WaterMark.exe
4296	WaterMark.exe
4296	WaterMark.exe
4296	WaterMark.exe
4296	WaterMark.exe
4296	WaterMark.exe
4296	WaterMark.exe
4296	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4296	WaterMark.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4712	iexplore.exe
4600	iexplore.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
4600	iexplore.exe
4600	iexplore.exe
4712	iexplore.exe
4712	iexplore.exe
4632	IEXPLORE.EXE
4632	IEXPLORE.EXE
4680	IEXPLORE.EXE
4680	IEXPLORE.EXE
4632	IEXPLORE.EXE
4632	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
4432	rundll32mgr.exe
4296	WaterMark.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 3292 wrote to memory of 3728	3292	rundll32.exe	86
PID 3292 wrote to memory of 3728	3292	rundll32.exe	86
PID 3292 wrote to memory of 3728	3292	rundll32.exe	86
PID 3728 wrote to memory of 4432	3728	rundll32.exe	88
PID 3728 wrote to memory of 4432	3728	rundll32.exe	88
PID 3728 wrote to memory of 4432	3728	rundll32.exe	88
PID 4432 wrote to memory of 4296	4432	rundll32mgr.exe	89
PID 4432 wrote to memory of 4296	4432	rundll32mgr.exe	89
PID 4432 wrote to memory of 4296	4432	rundll32mgr.exe	89
PID 4296 wrote to memory of 1564	4296	WaterMark.exe	91
PID 4296 wrote to memory of 1564	4296	WaterMark.exe	91
PID 4296 wrote to memory of 1564	4296	WaterMark.exe	91
PID 4296 wrote to memory of 1564	4296	WaterMark.exe	91
PID 4296 wrote to memory of 1564	4296	WaterMark.exe	91
PID 4296 wrote to memory of 1564	4296	WaterMark.exe	91
PID 4296 wrote to memory of 1564	4296	WaterMark.exe	91
PID 4296 wrote to memory of 1564	4296	WaterMark.exe	91
PID 4296 wrote to memory of 1564	4296	WaterMark.exe	91
PID 4296 wrote to memory of 4600	4296	WaterMark.exe	97
PID 4296 wrote to memory of 4600	4296	WaterMark.exe	97
PID 4296 wrote to memory of 4712	4296	WaterMark.exe	98
PID 4296 wrote to memory of 4712	4296	WaterMark.exe	98
PID 4712 wrote to memory of 4632	4712	iexplore.exe	100
PID 4712 wrote to memory of 4632	4712	iexplore.exe	100
PID 4712 wrote to memory of 4632	4712	iexplore.exe	100
PID 4600 wrote to memory of 4680	4600	iexplore.exe	99
PID 4600 wrote to memory of 4680	4600	iexplore.exe	99
PID 4600 wrote to memory of 4680	4600	iexplore.exe	99

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b2d56ba0aabac5658aadc051bafddc1d.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3292
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b2d56ba0aabac5658aadc051bafddc1d.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3728
- - 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:4432
  - - 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:4296
    - - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        5⤵
        
        PID:1564
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1564 -s 84
        6⤵
        Program crash
        
        PID:2092
    - - 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:4600
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4600 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4680
    - - 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:4712
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4712 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4632

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1564 -ip 1564
1⤵
PID:5852

Network

MITRE ATT&CK Enterprise v16

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\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{75E1595C-17CE-11F0-947A-DAB1868B17CD}.dat

Filesize
3KB

MD5
38103894bfdb6efbdb1e65e803b6ea99

SHA1
842a590719f76892a6b3d294bd1b0000b8fa65b3

SHA256
ad4c3fab3da137cd32ae879f5d811b2f4a2b5b8ee070f19f14ac359dbead9fc6

SHA512
e91377af0a45847ff540e94be2e6665ec789b7630f00abbeae1f0dfc00165331a01daaa6089065301ea96810c6abdba552bad910da9ad6d516a557fcd9b113e7

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{75E3BB9E-17CE-11F0-947A-DAB1868B17CD}.dat

Filesize
5KB

MD5
6eb0bd3a2d61492cc00e3a1978b2232f

SHA1
2c3fc3d37b34fc1d51ca2176015fb4a65f3c1c1d

SHA256
f9324d887e2142431085127051d07d684d7bc3154638bbca6ba48f7c197c575a

SHA512
1759050d04570bb63ca618b6b84d55433f4e0c9a2925e1634657adcd36f3172eb9b72dbccb09d3d5d52d171943792701df1f708822dfe2a50775041bcb6a0b93

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\Y4XTGLE2\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

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

Filesize
92KB

MD5
b5fa407b7ba06a139086f6fe65a317f7

SHA1
4c41705144148c2a13285b790b3aec0bfc81876b

SHA256
641f27b9724a242dc2391cdd48357c1ea7f53684ab2187e521a07afca0ede662

SHA512
9cb6cde83bb24849076b72f736d6778e657e8eab369a2d5368f641eebe3211d7f6233f5a14755b3019a48a481124de61b7671a317d44fcf63dbec3aefe1428cf

Download Submit
memory/1564-32-0x0000000000400000-0x0000000000401000-memory.dmp

Filesize
4KB

Download
memory/1564-31-0x0000000000420000-0x0000000000421000-memory.dmp

Filesize
4KB

Download
memory/3728-16-0x0000000075080000-0x0000000075635000-memory.dmp

Filesize
5.7MB

Download
memory/4296-33-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4296-35-0x0000000077BD2000-0x0000000077BD3000-memory.dmp

Filesize
4KB

Download
memory/4296-39-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4296-38-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4296-19-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4296-26-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4296-27-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4296-29-0x0000000077BD2000-0x0000000077BD3000-memory.dmp

Filesize
4KB

Download
memory/4296-28-0x0000000000060000-0x0000000000061000-memory.dmp

Filesize
4KB

Download
memory/4296-18-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4296-34-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/4432-17-0x0000000002840000-0x0000000002841000-memory.dmp

Filesize
4KB

Download
memory/4432-13-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4432-6-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4432-9-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4432-10-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4432-4-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4432-5-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4432-7-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download