ramnit | ab2688822ac9f78489d4e05a4c1e34ff63a918ce94673cf2c01010586e66555e

Analysis

max time kernel
93s
max time network
112s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08-01-2025 23:41

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General

Target

ab2688822ac9f78489d4e05a4c1e34ff63a918ce94673cf2c01010586e66555eN.dll
Size

847KB
MD5

368421d6e2e5267eb91f3976b1308d30
SHA1

7d5123036a037a69042d5b2324a8b463e3cd4794
SHA256

ab2688822ac9f78489d4e05a4c1e34ff63a918ce94673cf2c01010586e66555e
SHA512

2486bbe2c3c0cd71448bda6e1ea3516577d6a15133c9ad78c8ced2c9a3a6cec682888ac99db0de3e99b05261b8d6b2a647ec8fe81db0cf7c8761a4e795f24d42
SSDEEP

12288:x2aqaPt3XB387UAJRDolkb+BAlBrQtF1SRlx9hwvtOV0Z:x2aqet/AJRDolkb+mvctF1qlx7w1

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
2392	rundll32Srv.exe
4892	DesktopLayer.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2392-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x000c000000023b50-3.dat	upx
behavioral2/memory/2392-8-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4892-16-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4892-14-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4892-13-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\pxAB82.tmp	rundll32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5012	1740	WerFault.exe	83

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 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{22885142-CE1A-11EF-AEE2-D6A59BC41F9D} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31154726"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "4142421210"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4142421210"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31154726"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4147264941"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "443144686"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\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-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31154726"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4892	DesktopLayer.exe
4892	DesktopLayer.exe
4892	DesktopLayer.exe
4892	DesktopLayer.exe
4892	DesktopLayer.exe
4892	DesktopLayer.exe
4892	DesktopLayer.exe
4892	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
840	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
840	iexplore.exe
840	iexplore.exe
1060	IEXPLORE.EXE
1060	IEXPLORE.EXE
1060	IEXPLORE.EXE
1060	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 396 wrote to memory of 1740	396	rundll32.exe	83
PID 396 wrote to memory of 1740	396	rundll32.exe	83
PID 396 wrote to memory of 1740	396	rundll32.exe	83
PID 1740 wrote to memory of 2392	1740	rundll32.exe	84
PID 1740 wrote to memory of 2392	1740	rundll32.exe	84
PID 1740 wrote to memory of 2392	1740	rundll32.exe	84
PID 2392 wrote to memory of 4892	2392	rundll32Srv.exe	86
PID 2392 wrote to memory of 4892	2392	rundll32Srv.exe	86
PID 2392 wrote to memory of 4892	2392	rundll32Srv.exe	86
PID 4892 wrote to memory of 840	4892	DesktopLayer.exe	88
PID 4892 wrote to memory of 840	4892	DesktopLayer.exe	88
PID 840 wrote to memory of 1060	840	iexplore.exe	90
PID 840 wrote to memory of 1060	840	iexplore.exe	90
PID 840 wrote to memory of 1060	840	iexplore.exe	90

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ab2688822ac9f78489d4e05a4c1e34ff63a918ce94673cf2c01010586e66555eN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:396
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ab2688822ac9f78489d4e05a4c1e34ff63a918ce94673cf2c01010586e66555eN.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1740
- - 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:2392
  - - 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:4892
    - - 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:840
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:840 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1060
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1740 -s 608
    3⤵
    - Program crash
    PID:5012

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1740 -ip 1740
1⤵
PID:4696

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
9ff670ce735bcb3f1852fb17230eb4d1

SHA1
343b84e90eba5ba52ffde84efffc722d9aaef34c

SHA256
d5171888f2cf311802c4e02bcc7be88f684075e84d0665f44b823e6b6a5ead5f

SHA512
73e4531ae7a0273390be09ea835d4970b4e5053988f9bf48e55afabcf184aae29d267f31d43250c1d5baa721a23c51a0dd1c46d4acf3a747abc575b6f23bc120

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

Filesize
404B

MD5
475c58b9af3c4765ff6b0f2f0f512e69

SHA1
42b40bdc74e2bbbecdc15d44ce2fb78c72a15efc

SHA256
a4fca7772910bb4869ade28d9ae70f3d87b61cc6ecaf42360672fb552de18a20

SHA512
891753eb002f432118a42257828850b55aa0eca74a14ca6875ae01e305fc80c6c22295fe3aa51a3a338f6ecb53fb881a0b60885270a2af9002c68a6a716df064

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\M6JHG9EK\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Windows\SysWOW64\rundll32Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/1740-18-0x0000000075150000-0x000000007522A000-memory.dmp

Filesize
872KB

Download
memory/1740-2-0x0000000075150000-0x000000007522A000-memory.dmp

Filesize
872KB

Download
memory/2392-5-0x0000000000580000-0x000000000058F000-memory.dmp

Filesize
60KB

Download
memory/2392-8-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2392-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4892-14-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4892-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4892-15-0x00000000005A0000-0x00000000005A1000-memory.dmp

Filesize
4KB

Download
memory/4892-16-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download