ramnit | f243429397d4b911e49eb308fea7a544cb83212db4de3ac00702b99886b092a9

Analysis

max time kernel
94s
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
18-12-2024 23:44

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General

Target

f243429397d4b911e49eb308fea7a544cb83212db4de3ac00702b99886b092a9N.exe
Size

156KB
MD5

1b492f0248c7d009c4a98d6340878640
SHA1

3db0d3f329c621ed19656db9971c27748830bda3
SHA256

f243429397d4b911e49eb308fea7a544cb83212db4de3ac00702b99886b092a9
SHA512

d45da040ad4232c29b7cafbdc4d38150279a659b7de3c084310447ffe332c535a8caa3b929066ed05f6715375517ce95c6f7a5e675356bb0dac0b210345d4fdd
SSDEEP

3072:zZgC/uOY3G1dYzZZ3JfAg/UhCshlxTQdEL5mmuXXK+y:zWC/zY3GzYzLJfv/UhFBE7Xly

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
640	f243429397d4b911e49eb308fea7a544cb83212db4de3ac00702b99886b092a9NSrv.exe
2376	DesktopLayer.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000023bac-3.dat	upx
behavioral2/memory/640-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/640-8-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/2376-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/2376-16-0x0000000000400000-0x000000000042E000-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	f243429397d4b911e49eb308fea7a544cb83212db4de3ac00702b99886b092a9NSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\pxB99B.tmp	f243429397d4b911e49eb308fea7a544cb83212db4de3ac00702b99886b092a9NSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	f243429397d4b911e49eb308fea7a544cb83212db4de3ac00702b99886b092a9NSrv.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	f243429397d4b911e49eb308fea7a544cb83212db4de3ac00702b99886b092a9N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f243429397d4b911e49eb308fea7a544cb83212db4de3ac00702b99886b092a9NSrv.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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3983513025"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31150502"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3983513025"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31150502"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{190F92C8-BD9A-11EF-9361-5EA348B38F9D} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3987731467"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "441330476"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31150502"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2376	DesktopLayer.exe
2376	DesktopLayer.exe
2376	DesktopLayer.exe
2376	DesktopLayer.exe
2376	DesktopLayer.exe
2376	DesktopLayer.exe
2376	DesktopLayer.exe
2376	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3032	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3032	iexplore.exe
3032	iexplore.exe
4716	IEXPLORE.EXE
4716	IEXPLORE.EXE
4716	IEXPLORE.EXE
4716	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1236 wrote to memory of 640	1236	f243429397d4b911e49eb308fea7a544cb83212db4de3ac00702b99886b092a9N.exe	82
PID 1236 wrote to memory of 640	1236	f243429397d4b911e49eb308fea7a544cb83212db4de3ac00702b99886b092a9N.exe	82
PID 1236 wrote to memory of 640	1236	f243429397d4b911e49eb308fea7a544cb83212db4de3ac00702b99886b092a9N.exe	82
PID 640 wrote to memory of 2376	640	f243429397d4b911e49eb308fea7a544cb83212db4de3ac00702b99886b092a9NSrv.exe	83
PID 640 wrote to memory of 2376	640	f243429397d4b911e49eb308fea7a544cb83212db4de3ac00702b99886b092a9NSrv.exe	83
PID 640 wrote to memory of 2376	640	f243429397d4b911e49eb308fea7a544cb83212db4de3ac00702b99886b092a9NSrv.exe	83
PID 2376 wrote to memory of 3032	2376	DesktopLayer.exe	84
PID 2376 wrote to memory of 3032	2376	DesktopLayer.exe	84
PID 3032 wrote to memory of 4716	3032	iexplore.exe	85
PID 3032 wrote to memory of 4716	3032	iexplore.exe	85
PID 3032 wrote to memory of 4716	3032	iexplore.exe	85

C:\Users\Admin\AppData\Local\Temp\f243429397d4b911e49eb308fea7a544cb83212db4de3ac00702b99886b092a9N.exe
"C:\Users\Admin\AppData\Local\Temp\f243429397d4b911e49eb308fea7a544cb83212db4de3ac00702b99886b092a9N.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1236
- C:\Users\Admin\AppData\Local\Temp\f243429397d4b911e49eb308fea7a544cb83212db4de3ac00702b99886b092a9NSrv.exe
  C:\Users\Admin\AppData\Local\Temp\f243429397d4b911e49eb308fea7a544cb83212db4de3ac00702b99886b092a9NSrv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:640
- - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
    "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:2376
  - - C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of FindShellTrayWindow
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:3032
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3032 CREDAT:17410 /prefetch:2
        5⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4716

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
5e99ec80bb4e60401972729dff7db4f2

SHA1
a68a2f47614d8afd1b7afd1e0620d32cd393e2c0

SHA256
6ac6e0c6b415580d28c082f0e59f45289379890a167c088a557d3e2578b424e0

SHA512
7670c7e91ae9555458275effc570e107c9ae43b02e65f9200b773f9139dfe228faf55f5c4ac5d9d713d0231e16c129baf1c289534b42ac7b4d042f370240c654

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

Filesize
404B

MD5
49cf6d80e6ba260075a5ff958d9f0626

SHA1
cb42cfa1e5bf7b183760f66d78abd5f0da7d1aed

SHA256
4aaafca94cdf93bef6cf12acb93d830d9bfb5389e2794220fca47994cf85a18b

SHA512
dff7f7b07f3e8002fd206c988d11b7d760145890941b0b5b6ab6a3095ef0aaf595e0b0fd6740b0b4b264df9d46386830f49db3aa5c0f86bb29ff40abd9637a43

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\0BHOTC3C\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Users\Admin\AppData\Local\Temp\f243429397d4b911e49eb308fea7a544cb83212db4de3ac00702b99886b092a9NSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/640-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/640-8-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/640-7-0x0000000000480000-0x000000000048F000-memory.dmp

Filesize
60KB

Download
memory/1236-0-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1236-5-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/2376-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2376-14-0x0000000002050000-0x0000000002051000-memory.dmp

Filesize
4KB

Download
memory/2376-16-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download