ramnit | b3448671b078cd6223384850e680451ab257f7a2bb1ffbfba4a760d79e868af6

Analysis

max time kernel
94s
max time network
114s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2024 19:56

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General

Target

b3448671b078cd6223384850e680451ab257f7a2bb1ffbfba4a760d79e868af6.dll
Size

308KB
MD5

e4577c711455ccfd4ec4c0a02d23340f
SHA1

b0f4b0c36ec324246d3b815ee94f5e2e9f8102f4
SHA256

b3448671b078cd6223384850e680451ab257f7a2bb1ffbfba4a760d79e868af6
SHA512

8266f05cd3f261554a5fd70e5434279ed690454e4dd473ab7f8a02f058450f753cf6366db35bced2e263e2d5054fd820f7aff672add862d688b9ef0dd19cf5d3
SSDEEP

6144:e6QlFKuIXrznO2I0Xrp55ttpbYa06T/60nGAkPj2sK+C2pcZ70b/9p91H1nsm7Po:eVTAHvVe9P1od

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
1344	regsvr32Srv.exe
4068	DesktopLayer.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\regsvr32Srv.exe	regsvr32.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000023b2b-3.dat	upx
behavioral2/memory/1344-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/1344-7-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4068-14-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4068-16-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4068-13-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px7956.tmp	regsvr32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	regsvr32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	regsvr32Srv.exe

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	IEXPLORE.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32Srv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DesktopLayer.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
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\Main\WindowsSearch	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\LastUpdateHighDateTime = "31152080"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1626575709"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1629544473"	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\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	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\VersionManager\LastTTLLowDateTime = "1251635200"	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 (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\GPU	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\LastCheckForUpdateHighDateTime = "31152080"	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	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "442007986"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1626575709"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31152080"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{8C8C6994-C3C3-11EF-AEE2-F6235BFAC6D3} = "0"	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
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\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe

Modifies registry class 7 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5C95CA51-C282-4540-B4D4-5C6A897DDC32}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5C95CA51-C282-4540-B4D4-5C6A897DDC32}\ = "PictureViz_II Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5C95CA51-C282-4540-B4D4-5C6A897DDC32}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5C95CA51-C282-4540-B4D4-5C6A897DDC32}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b3448671b078cd6223384850e680451ab257f7a2bb1ffbfba4a760d79e868af6.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5C95CA51-C282-4540-B4D4-5C6A897DDC32}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5C95CA51-C282-4540-B4D4-5C6A897DDC32}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5C95CA51-C282-4540-B4D4-5C6A897DDC32}\TypeLib\ = "{7D17B345-5D43-49d9-8827-67C36DA882C3}"	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4068	DesktopLayer.exe
4068	DesktopLayer.exe
4068	DesktopLayer.exe
4068	DesktopLayer.exe
4068	DesktopLayer.exe
4068	DesktopLayer.exe
4068	DesktopLayer.exe
4068	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4132	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4132	iexplore.exe
4132	iexplore.exe
4424	IEXPLORE.EXE
4424	IEXPLORE.EXE
4424	IEXPLORE.EXE
4424	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3612 wrote to memory of 2360	3612	regsvr32.exe	83
PID 3612 wrote to memory of 2360	3612	regsvr32.exe	83
PID 3612 wrote to memory of 2360	3612	regsvr32.exe	83
PID 2360 wrote to memory of 1344	2360	regsvr32.exe	84
PID 2360 wrote to memory of 1344	2360	regsvr32.exe	84
PID 2360 wrote to memory of 1344	2360	regsvr32.exe	84
PID 1344 wrote to memory of 4068	1344	regsvr32Srv.exe	85
PID 1344 wrote to memory of 4068	1344	regsvr32Srv.exe	85
PID 1344 wrote to memory of 4068	1344	regsvr32Srv.exe	85
PID 4068 wrote to memory of 4132	4068	DesktopLayer.exe	86
PID 4068 wrote to memory of 4132	4068	DesktopLayer.exe	86
PID 4132 wrote to memory of 4424	4132	iexplore.exe	87
PID 4132 wrote to memory of 4424	4132	iexplore.exe	87
PID 4132 wrote to memory of 4424	4132	iexplore.exe	87

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b3448671b078cd6223384850e680451ab257f7a2bb1ffbfba4a760d79e868af6.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3612
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\b3448671b078cd6223384850e680451ab257f7a2bb1ffbfba4a760d79e868af6.dll
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2360
- - C:\Windows\SysWOW64\regsvr32Srv.exe
    C:\Windows\SysWOW64\regsvr32Srv.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1344
  - - 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:4068
    - - 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:4132
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4132 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4424

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
863881560832be6db3d7e95507b796d8

SHA1
bab29c682b73454cb94d1a0edfaae5fd64d076f6

SHA256
1b8c898d463e9947656d97610caa6068a39c17fae72baa9168113364b7f70063

SHA512
0556ac3e08e23d12ba2558e3e1320f8c7591359a003c6b98e3d93208361000c3fc25dc13e9f4a3575ef854bd903b32f62a36e541ba10de67f38663d8d8debbcb

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

Filesize
404B

MD5
f4fead5b0ebbb30f5cab61e1523dd056

SHA1
cac489b3a77f376b7e201ac86d3f76fa3646642a

SHA256
fd80c674488b923b5566cf68c4cc0df56510bb149a17f5731b6ffc41ae64d587

SHA512
c2cdf6b5c930d90dc80eab95278a239b380999b4c77b3c2b43dc8133f047e9c003bbd728417cdb3fe331420528af666b7610d511feae62e01cc7e21c3b75bfd3

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\regsvr32Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/1344-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1344-5-0x0000000000580000-0x000000000058F000-memory.dmp

Filesize
60KB

Download
memory/1344-7-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2360-0-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/4068-14-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4068-16-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4068-15-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/4068-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

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