ramnit | 1bc62e0f8596d2a7062e4a133ee614700420abfd1963f345bb00efc4d48402bd

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-01-2025 09:14

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General

Target

1bc62e0f8596d2a7062e4a133ee614700420abfd1963f345bb00efc4d48402bd.dll
Size

1.6MB
MD5

7ea754bf0ff4157e816924af2ba96c02
SHA1

5c51e882982d9e68c3483c94be986e1306662f44
SHA256

1bc62e0f8596d2a7062e4a133ee614700420abfd1963f345bb00efc4d48402bd
SHA512

755c530841e153bba3d67369862955cf6bd8892b3db6c91ed2ee19a5534030740c81c7262edeef7d21f4b396380b45e47665b4c4349eeb685524fa669db66b5b
SSDEEP

24576:L8vc0VJnXtBcaW+KpPrCnp6ZlR1NKOCfBNVlKfyiMp/WewR+YBi4Zy:qc0VJj4jKCD1Noz1p/aZy

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
4252	rundll32Srv.exe
1556	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/memory/4252-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x000c000000023b2b-3.dat	upx
behavioral2/memory/4252-9-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/1556-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/1556-13-0x0000000000400000-0x000000000042E000-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\px8FFB.tmp	rundll32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	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	DesktopLayer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32Srv.exe

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "442574246"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3449209277"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3452959388"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31153398"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31153398"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31153398"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\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-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{F936BECE-C8E9-11EF-A4B7-DEEFF298442C} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3449209277"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1556	DesktopLayer.exe
1556	DesktopLayer.exe
1556	DesktopLayer.exe
1556	DesktopLayer.exe
1556	DesktopLayer.exe
1556	DesktopLayer.exe
1556	DesktopLayer.exe
1556	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4736	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4736	iexplore.exe
4736	iexplore.exe
1968	IEXPLORE.EXE
1968	IEXPLORE.EXE
1968	IEXPLORE.EXE
1968	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 732 wrote to memory of 4980	732	rundll32.exe	82
PID 732 wrote to memory of 4980	732	rundll32.exe	82
PID 732 wrote to memory of 4980	732	rundll32.exe	82
PID 4980 wrote to memory of 4252	4980	rundll32.exe	83
PID 4980 wrote to memory of 4252	4980	rundll32.exe	83
PID 4980 wrote to memory of 4252	4980	rundll32.exe	83
PID 4252 wrote to memory of 1556	4252	rundll32Srv.exe	84
PID 4252 wrote to memory of 1556	4252	rundll32Srv.exe	84
PID 4252 wrote to memory of 1556	4252	rundll32Srv.exe	84
PID 1556 wrote to memory of 4736	1556	DesktopLayer.exe	85
PID 1556 wrote to memory of 4736	1556	DesktopLayer.exe	85
PID 4736 wrote to memory of 1968	4736	iexplore.exe	86
PID 4736 wrote to memory of 1968	4736	iexplore.exe	86
PID 4736 wrote to memory of 1968	4736	iexplore.exe	86

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1bc62e0f8596d2a7062e4a133ee614700420abfd1963f345bb00efc4d48402bd.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:732
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\1bc62e0f8596d2a7062e4a133ee614700420abfd1963f345bb00efc4d48402bd.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4980
- - 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:4252
  - - 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:1556
    - - 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:4736
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4736 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1968

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
30f59b20e935520badc298242cb4cff1

SHA1
00622b2054eb148a8459c2ccd0b22606c2d5c7f6

SHA256
4a981d199e551f2b8c8fa22f0e3fbc264e876e5ed243d83331b2a6083a753e3c

SHA512
f22ca09eb3266cee3f363e4f3f955745382679d136d61e7c27f81081cd77efa5f82f82220526928f73049e692b7c060f64032dfae0f967c579c6e6acfd2e8d21

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

Filesize
404B

MD5
46dc15ee8786016ae729b77181ba6e2d

SHA1
952b2a34419a6f14f7ad22a16c51f27f1f4941c1

SHA256
f91f29cce756834a259f850f2b3bc2239065ccb97c737d8089aee9e4a2db5453

SHA512
6b443b29be58a072b5f0185a0fb45a7482dccba04efda33ad840c0a1a68ee269ed3e379c17a2053e66a0ccb5422c417f6bf5353acf997d73215484aeecb11eb7

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\P2UT3MS5\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/1556-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1556-14-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/1556-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4252-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4252-6-0x00000000005A0000-0x00000000005AF000-memory.dmp

Filesize
60KB

Download
memory/4252-9-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4980-0-0x0000000010000000-0x000000001019D000-memory.dmp

Filesize
1.6MB

Download