b65d5827783e5c7c2d63519297104e7b5c8dae747ec4e24db6d3d2ee6a7eda5b

Analysis

max time kernel
142s
max time network
128s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
19/09/2023, 02:57

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General

Target

b65d5827783e5c7c2d63519297104e7b5c8dae747ec4e24db6d3d2ee6a7eda5b.exe
Size

198KB
MD5

64c243bee8a149048cfe25e8eec150d9
SHA1

7621e5dc70d1fb8daa4a99933d4a7ffa305d5f31
SHA256

b65d5827783e5c7c2d63519297104e7b5c8dae747ec4e24db6d3d2ee6a7eda5b
SHA512

224ecbdf24b8d1b263531daba968f63271974773e33261391e1f77e44c28891da5bcded763a851639c2dc5f12180e93a94fa90d5977d2be1bda5c09c26657872
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCO+:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXP

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2332	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
1692	rwmhost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\rwmhost.exe	b65d5827783e5c7c2d63519297104e7b5c8dae747ec4e24db6d3d2ee6a7eda5b.exe
File opened for modification	C:\Windows\Debug\rwmhost.exe	b65d5827783e5c7c2d63519297104e7b5c8dae747ec4e24db6d3d2ee6a7eda5b.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	rwmhost.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rwmhost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2288	b65d5827783e5c7c2d63519297104e7b5c8dae747ec4e24db6d3d2ee6a7eda5b.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2288 wrote to memory of 2332	2288	b65d5827783e5c7c2d63519297104e7b5c8dae747ec4e24db6d3d2ee6a7eda5b.exe	29
PID 2288 wrote to memory of 2332	2288	b65d5827783e5c7c2d63519297104e7b5c8dae747ec4e24db6d3d2ee6a7eda5b.exe	29
PID 2288 wrote to memory of 2332	2288	b65d5827783e5c7c2d63519297104e7b5c8dae747ec4e24db6d3d2ee6a7eda5b.exe	29
PID 2288 wrote to memory of 2332	2288	b65d5827783e5c7c2d63519297104e7b5c8dae747ec4e24db6d3d2ee6a7eda5b.exe	29

C:\Users\Admin\AppData\Local\Temp\b65d5827783e5c7c2d63519297104e7b5c8dae747ec4e24db6d3d2ee6a7eda5b.exe
"C:\Users\Admin\AppData\Local\Temp\b65d5827783e5c7c2d63519297104e7b5c8dae747ec4e24db6d3d2ee6a7eda5b.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2288
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\B65D58~1.EXE > nul
  2⤵
  - Deletes itself
  PID:2332

C:\Windows\Debug\rwmhost.exe
C:\Windows\Debug\rwmhost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:1692

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
198KB

MD5
14d07bcb2f145629d9844047661b9903

SHA1
0715fa021d4b5e7cea54487bdf57e60ade7ddf3a

SHA256
085057a943c3bf17b4df5c76f84851a933a77241c4edcf8bf7726443be6a348b

SHA512
94a59ae779ab7c8db7d26ce8e0b865afc7ab5d091a8cba3ddfd88073dbf2b8a925b04c072e81ec844afe2e36c4518a50c9d3ffc3a4298d694b78aea965bbc7b9

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