ramnit | 72279f86e98945ff89a73901fb8a601b1fbac3ebb7f45bd29cda970210ce92d1

Analysis

max time kernel
93s
max time network
113s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-12-2024 04:31

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General

Target

72279f86e98945ff89a73901fb8a601b1fbac3ebb7f45bd29cda970210ce92d1N.dll
Size

751KB
MD5

0a1ff7a02c3a03668e9216b367fb9dc0
SHA1

3da6b600af74eca50ec71ebea4efefe1821aab38
SHA256

72279f86e98945ff89a73901fb8a601b1fbac3ebb7f45bd29cda970210ce92d1
SHA512

a434e4ed2b48692668c6912aa6e2b1d1887fe0904cb5210b7967bd0057999382ac181c481b08fe67bef3ddb37ec1d8e4b278ea357705b4f49ead302de390db98
SSDEEP

12288:G8Uq3+xvCXcJUNi7Q7HnvvRowFQrDs6rSnmMP7R3:G8UquxvCXYUo7OHnvJvUrmnmMP7J

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
4172	rundll32Srv.exe
1576	DesktopLayer.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x00040000000229c7-3.dat	upx
behavioral2/memory/4172-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4172-7-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/1576-13-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/1576-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\pxA72D.tmp	rundll32Srv.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	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
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31150341"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "441261269"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{F6B4C7B5-BCF8-11EF-BDBF-7ECF469E42CC} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3408699685"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31150341"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3408699685"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31150341"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3412450562"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1576	DesktopLayer.exe
1576	DesktopLayer.exe
1576	DesktopLayer.exe
1576	DesktopLayer.exe
1576	DesktopLayer.exe
1576	DesktopLayer.exe
1576	DesktopLayer.exe
1576	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2556	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2556	iexplore.exe
2556	iexplore.exe
1784	IEXPLORE.EXE
1784	IEXPLORE.EXE
1784	IEXPLORE.EXE
1784	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3644 wrote to memory of 2972	3644	rundll32.exe	85
PID 3644 wrote to memory of 2972	3644	rundll32.exe	85
PID 3644 wrote to memory of 2972	3644	rundll32.exe	85
PID 2972 wrote to memory of 4172	2972	rundll32.exe	86
PID 2972 wrote to memory of 4172	2972	rundll32.exe	86
PID 2972 wrote to memory of 4172	2972	rundll32.exe	86
PID 4172 wrote to memory of 1576	4172	rundll32Srv.exe	87
PID 4172 wrote to memory of 1576	4172	rundll32Srv.exe	87
PID 4172 wrote to memory of 1576	4172	rundll32Srv.exe	87
PID 1576 wrote to memory of 2556	1576	DesktopLayer.exe	88
PID 1576 wrote to memory of 2556	1576	DesktopLayer.exe	88
PID 2556 wrote to memory of 1784	2556	iexplore.exe	89
PID 2556 wrote to memory of 1784	2556	iexplore.exe	89
PID 2556 wrote to memory of 1784	2556	iexplore.exe	89

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\72279f86e98945ff89a73901fb8a601b1fbac3ebb7f45bd29cda970210ce92d1N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3644
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\72279f86e98945ff89a73901fb8a601b1fbac3ebb7f45bd29cda970210ce92d1N.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2972
- - 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:4172
  - - 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:1576
    - - 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:2556
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2556 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1784

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
77535424e0fcc00d990bf59f7519768b

SHA1
57035db42bfa1e29eacd3e2453c52dc7ec4e56c0

SHA256
aa1524c5d9d5675e8cfcb023691f98a50d943d80b0c992e7c49a160ec396ad58

SHA512
236b7855e38b5fac6415a81fd5531f88b5820bf49f5b76d4235c9f198eb9f7f8101d455aa2399b6ac6ed5649c232f2214e7311b87ece51ff039f298ddbdc1223

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\6IJLDY7V\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/1576-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1576-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1576-14-0x0000000000450000-0x0000000000451000-memory.dmp

Filesize
4KB

Download
memory/2972-1-0x0000000024600000-0x00000000246C4000-memory.dmp

Filesize
784KB

Download
memory/4172-5-0x0000000000590000-0x000000000059F000-memory.dmp

Filesize
60KB

Download
memory/4172-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4172-7-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download