4fd6e359fc32a59af69efb2ad784fba45c2d1023426a3963ed5c861a022da0d6

Analysis

max time kernel
141s
max time network
129s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
27/03/2024, 19:58

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General

Target

4fd6e359fc32a59af69efb2ad784fba45c2d1023426a3963ed5c861a022da0d6.exe
Size

197KB
MD5

08c043c1ed40ab2aebfd85076a15e9e1
SHA1

3a85ffe9afde123dd3e0c124827112b022666d52
SHA256

4fd6e359fc32a59af69efb2ad784fba45c2d1023426a3963ed5c861a022da0d6
SHA512

04986edb5333a81441791f1f724d1f803ebbc20489b4c45f30c191aefd84df64b2a54f9676c1ecdf79719de92b52775d32bc1e8bf25fce311fb3301bd3378a39
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOa:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXz

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2656	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
760	rwmhost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\rwmhost.exe	4fd6e359fc32a59af69efb2ad784fba45c2d1023426a3963ed5c861a022da0d6.exe
File opened for modification	C:\Windows\Debug\rwmhost.exe	4fd6e359fc32a59af69efb2ad784fba45c2d1023426a3963ed5c861a022da0d6.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rwmhost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	rwmhost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2468	4fd6e359fc32a59af69efb2ad784fba45c2d1023426a3963ed5c861a022da0d6.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2468 wrote to memory of 2656	2468	4fd6e359fc32a59af69efb2ad784fba45c2d1023426a3963ed5c861a022da0d6.exe	29
PID 2468 wrote to memory of 2656	2468	4fd6e359fc32a59af69efb2ad784fba45c2d1023426a3963ed5c861a022da0d6.exe	29
PID 2468 wrote to memory of 2656	2468	4fd6e359fc32a59af69efb2ad784fba45c2d1023426a3963ed5c861a022da0d6.exe	29
PID 2468 wrote to memory of 2656	2468	4fd6e359fc32a59af69efb2ad784fba45c2d1023426a3963ed5c861a022da0d6.exe	29

C:\Users\Admin\AppData\Local\Temp\4fd6e359fc32a59af69efb2ad784fba45c2d1023426a3963ed5c861a022da0d6.exe
"C:\Users\Admin\AppData\Local\Temp\4fd6e359fc32a59af69efb2ad784fba45c2d1023426a3963ed5c861a022da0d6.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2468
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\4FD6E3~1.EXE > nul
  2⤵
  - Deletes itself
  PID:2656

C:\Windows\Debug\rwmhost.exe
C:\Windows\Debug\rwmhost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:760

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\debug\rwmhost.exe

Filesize
197KB

MD5
2760f04a7c2385f96711bdee96026593

SHA1
07c2af690fa780d2dc1c73d4cecde93a06c974ff

SHA256
8581eb48801b01108bdea1a1f5a2963fcb541e6ccb12644175fcf76979dd3ee9

SHA512
f95d11e4b1791db40e0a3c701dbe5dc738301512db63f2adcf7f8311965150c8b9d1fc0f68631c71eece337f346d46c4d1a02f830b2e801050fa333f737c162a

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