ramnit | 901b9a1e05436409e63ea3bd862317b2ee7a7c83e1a7cc8ed4d65119407a7e40

General

Target

2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnit.exe
Size

1.9MB
MD5

bb55ee374a0660133a193395a739b98d
SHA1

7a8fae8d074a1dd95e68815e05322cd739f727f6
SHA256

901b9a1e05436409e63ea3bd862317b2ee7a7c83e1a7cc8ed4d65119407a7e40
SHA512

110a65130f3c9f55bb778aead19f1dbee6e4c2cc8a616f18b9b3a6ac00feec74c906468dacbdd9fcc100161085e8cf20357e111844ef00d07a8975f0afe67ce2
SSDEEP

49152:NexqJHK1DGeJfqopT1zZbFRKnxRBGoxLibj9Xl7Z/9Uu0E5B5:GqJHK1zJbpTVZb8pLlibj9Xl7Z/9nb

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

Processes:

2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnitSrv.exeDesktopLayer.exe

pid process

4992 2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnitSrv.exe
3988 DesktopLayer.exe

pid	process
4992	2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnitSrv.exe
3988	DesktopLayer.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
C:\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
behavioral2/memory/3988-16-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/3988-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4992-7-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4992-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

Processes:

2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnitSrv.exe

description	ioc	process
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnitSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnitSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\pxAF7A.tmp	2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnitSrv.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

Processes:

2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnit.exe2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnitSrv.exeDesktopLayer.exeIEXPLORE.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnit.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnitSrv.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 6 IoCs

adware spyware

Modify Registry

T1112

Processes:

iexplore.exe

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\Main\CompatibilityFlags = "0"	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\Recovery\AdminActive\{7DD1F5CB-9870-11EF-AEE2-D2BD7E71DA05} = "0"	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\WindowsSearch\Version = "WS not running"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

DesktopLayer.exe

pid	process
3988	DesktopLayer.exe
3988	DesktopLayer.exe
3988	DesktopLayer.exe
3988	DesktopLayer.exe
3988	DesktopLayer.exe
3988	DesktopLayer.exe
3988	DesktopLayer.exe
3988	DesktopLayer.exe

Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnit.exeiexplore.exe

pid	process
5044	2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnit.exe
5044	2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnit.exe
5044	2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnit.exe
2636	iexplore.exe
2636	iexplore.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnit.exe2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnitSrv.exeDesktopLayer.exeiexplore.exe

description	pid	process	target process
PID 5044 wrote to memory of 4992	5044	2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnit.exe	2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnitSrv.exe
PID 5044 wrote to memory of 4992	5044	2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnit.exe	2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnitSrv.exe
PID 5044 wrote to memory of 4992	5044	2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnit.exe	2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnitSrv.exe
PID 4992 wrote to memory of 3988	4992	2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnitSrv.exe	DesktopLayer.exe
PID 4992 wrote to memory of 3988	4992	2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnitSrv.exe	DesktopLayer.exe
PID 4992 wrote to memory of 3988	4992	2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnitSrv.exe	DesktopLayer.exe
PID 3988 wrote to memory of 2636	3988	DesktopLayer.exe	iexplore.exe
PID 3988 wrote to memory of 2636	3988	DesktopLayer.exe	iexplore.exe
PID 2636 wrote to memory of 4264	2636	iexplore.exe	IEXPLORE.EXE
PID 2636 wrote to memory of 4264	2636	iexplore.exe	IEXPLORE.EXE
PID 2636 wrote to memory of 4264	2636	iexplore.exe	IEXPLORE.EXE

C:\Users\Admin\AppData\Local\Temp\2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnit.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnit.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5044

C:\Users\Admin\AppData\Local\Temp\2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnitSrv.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-01_bb55ee374a0660133a193395a739b98d_bkransomware_ramnitSrv.exe
2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4992

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:3988

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe"
4⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2636

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2636 CREDAT:17410 /prefetch:2
5⤵
- System Location Discovery: System Language Discovery
PID:4264

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files (x86)\Microsoft\DesktopLayer.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

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

Filesize
471B

MD5
8fcd2801947deaf151e983830331290b

SHA1
f51696d3d1486f78df561246375818a3313af27e

SHA256
c8feb01b063e3ce5afab5464e537832b1adcd0558e164f3854e0de456dbb3571

SHA512
531fd2ef45fb40ada3439c743b1ef1b80108dfaa61289eb959d9a73d70390de24382584eb24f52b6b5b42dd81ae39bc41a80429b59d7a97e7ac66a922e290e19

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

Filesize
404B

MD5
e99030e34267ebe22397bf44b16cc2f8

SHA1
2b50d6618b6cc7e3ef294eed8b24a33f46a618dd

SHA256
8590e59d6c06db96bd289e59286902a9be23099520c64c9b6a334c7617e87a1f

SHA512
dd7bfa64760db19678624c0af04729e13bad50157e5d1dc1e92fa78d216dd05c704ad46e150fb6f109e28b527b2c1593b04c1a08c622708733fde4b2cb6c378d

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
memory/3988-16-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3988-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3988-14-0x0000000001F10000-0x0000000001F11000-memory.dmp

Filesize
4KB

Download
memory/4992-7-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4992-6-0x00000000004C0000-0x00000000004CF000-memory.dmp

Filesize
60KB

Download
memory/4992-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/5044-0-0x0000000000C80000-0x0000000000E7C000-memory.dmp

Filesize
2.0MB

Download
memory/5044-18-0x0000000000C80000-0x0000000000E7C000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads