ramnit | 7578425acac7de030779e157fc112562942dc1a62f002bcec74263614d5ca743

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
26/08/2026, 07:54

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General

Target
7578425acac7de030779e157fc112562942dc1a62f002bcec74263614d5ca743.dll
Size 268KB
Sample260826-jrwz2sam2x
SHA256 7578425acac7de030779e157fc112562942dc1a62f002bcec74263614d5ca743
MD5 4faae5019d6c62a69e1e09c524706d72
SHA1 47faf286afdca38360659381484ffa74712decce
SHA512 2eca68aabd30a81f39c100e545170a6530c47732e6baa607b608d3c3315456c6d2a9037f0b6efdc9fd2073258036b46ac703f7b44cee7784cd61a117ae200888
SSDEEP 6144:T2TWcqHsNlMA4GUOZsHy7Qea/66ngCOls9rDuLBN:EbqHsoAuOZDa/mCpDuLBN
TLSH
T15044AFCAE9804C75D5B110BE88E7573ECE3B9A97A22DF0065768DFF089A0450A7CE35D
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

adware banker discovery ramnit spyware stealer trojan upx worm

Malware Config

Signatures

Family: Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit

Executes dropped EXE 2 IoCs

pid	Process
1076	rundll32Srv.exe
1544	DesktopLayer.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32Srv.exe	rundll32.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1076-7-0x0000000000400000-0x0000000000413000-memory.dmp	upx
behavioral1/memory/1076-9-0x0000000000400000-0x0000000000413000-memory.dmp	upx
behavioral1/memory/1544-17-0x0000000000400000-0x0000000000413000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px4716.tmp	rundll32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2980	4556	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	rundll32Srv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DesktopLayer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 21 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-876885714-46325919-1482798410-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31274288"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-876885714-46325919-1482798410-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-876885714-46325919-1482798410-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-876885714-46325919-1482798410-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-876885714-46325919-1482798410-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{6638D7EB-A123-11F1-B05C-D2B4DCFC1B56} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-876885714-46325919-1482798410-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-876885714-46325919-1482798410-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "998564657"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-876885714-46325919-1482798410-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "494495859"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-876885714-46325919-1482798410-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-876885714-46325919-1482798410-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-876885714-46325919-1482798410-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-876885714-46325919-1482798410-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-876885714-46325919-1482798410-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-876885714-46325919-1482798410-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-876885714-46325919-1482798410-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-876885714-46325919-1482798410-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-876885714-46325919-1482798410-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-876885714-46325919-1482798410-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-876885714-46325919-1482798410-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-876885714-46325919-1482798410-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-876885714-46325919-1482798410-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1544	DesktopLayer.exe
1544	DesktopLayer.exe
1544	DesktopLayer.exe
1544	DesktopLayer.exe
1544	DesktopLayer.exe
1544	DesktopLayer.exe
1544	DesktopLayer.exe
1544	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3016	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3016	iexplore.exe
3016	iexplore.exe
3444	IEXPLORE.EXE
3444	IEXPLORE.EXE
3444	IEXPLORE.EXE
3444	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1064 wrote to memory of 4556	1064	rundll32.exe	88
PID 4556 wrote to memory of 1076	4556	rundll32.exe	89
PID 1076 wrote to memory of 1544	1076	rundll32Srv.exe	91
PID 1544 wrote to memory of 3016	1544	DesktopLayer.exe	93
PID 3016 wrote to memory of 3444	3016	iexplore.exe	95

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7578425acac7de030779e157fc112562942dc1a62f002bcec74263614d5ca743.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1064
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\7578425acac7de030779e157fc112562942dc1a62f002bcec74263614d5ca743.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4556
- - C:\Windows\SysWOW64\rundll32Srv.exe
    C:\Windows\SysWOW64\rundll32Srv.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1076
  - - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
      "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:1544
    - - 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:3016
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3016 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:3444
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4556 -s 676
    3⤵
    - Program crash
    PID:2980

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4556 -ip 4556
1⤵
PID:1184

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

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Downloads

suggestions[1].en-US

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\GI7SXTIE\suggestions[1].en-US
Size 17KB
SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
MD5 5a34cb996293fde2cb7a4ac89587393a
SHA1 3c96c993500690d1a77873cd62bc639b3a10653f
SHA512 e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
SSDEEP 384:K4gN8sGygaEKfWYSJUKbO7UckxtBjCdY7mO3D0C5l+piEieDSV126ry1/XSGKwG3:K4gNFXiKfWfJ1Kockxbd7mAt5Mp5ie2F
TLSH
T13A823E4E61D88F57EA47B6B2D9084EA702E0C8794716DB93D62CFE63CDE33B25D02161
MD5 SHA1 SHA512 SSDEEP TLSH

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rundll32Srv.exe

Path C:\Windows\SysWOW64\rundll32Srv.exe
Size 52KB
SHA256 f515564b67efd06fa42f57532feafc49d40b0fc36c5d4935300dd55416f0a386
MD5 17efb7e40d4cadaf3a4369435a8772ec
SHA1 eb9302063ac2ab599ae93aaa1e45b88bbeacbca2
SHA512 522fba06304950860fa9aa8933b12b9323dea47dbda363db3f57535396c156c4cf6934a9db38fff8c77503fcb889d030fadb639094a1f34bbad54c79c8734450
SSDEEP 1536:c3j72srzVRv7Kf4AH+pdcDJVoYMeKTn1:UusXjTuoaD6eK71
TLSH
T1B933D143D92BDB37E4E85E368D661F3009B9A9637DA107DBDE00524910A1FC0D537E5B
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1076-5-0x0000000000400000-0x0000000000413000-memory.dmp

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memory/1076-7-0x0000000000400000-0x0000000000413000-memory.dmp

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memory/1076-6-0x0000000000680000-0x0000000000682000-memory.dmp

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memory/1076-9-0x0000000000400000-0x0000000000413000-memory.dmp

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memory/1544-14-0x0000000000400000-0x0000000000413000-memory.dmp

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memory/1544-18-0x0000000000520000-0x0000000000521000-memory.dmp

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memory/1544-17-0x0000000000400000-0x0000000000413000-memory.dmp

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memory/4556-1-0x0000000010000000-0x000000001004D000-memory.dmp

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memory/4556-21-0x0000000010000000-0x000000001004D000-memory.dmp

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