e7f1c9edb413fa69b12eba9e17e2ce2372cd4ab0e62724fb5934d534e462967b

Analysis

max time kernel
142s
max time network
129s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
22/10/2023, 20:38

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General

Target

e7f1c9edb413fa69b12eba9e17e2ce2372cd4ab0e62724fb5934d534e462967b.exe
Size

200KB
MD5

cfe88832c90a6c49dfd78e0d8261b074
SHA1

49321a5546da8d3b7220ffd287c82d49a3c9f7d9
SHA256

e7f1c9edb413fa69b12eba9e17e2ce2372cd4ab0e62724fb5934d534e462967b
SHA512

4c58719b95b35b3047cba65f948c56d924a7dd5497c91f07e378bf2bd223ea43e09a1d5e829b17195fea3f265098e392ceeaec384f31234ccac0f9c6377d7df6
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOJ:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXM

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2392	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
1296	rwmhost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\rwmhost.exe	e7f1c9edb413fa69b12eba9e17e2ce2372cd4ab0e62724fb5934d534e462967b.exe
File opened for modification	C:\Windows\Debug\rwmhost.exe	e7f1c9edb413fa69b12eba9e17e2ce2372cd4ab0e62724fb5934d534e462967b.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	2112	e7f1c9edb413fa69b12eba9e17e2ce2372cd4ab0e62724fb5934d534e462967b.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 2392	2112	e7f1c9edb413fa69b12eba9e17e2ce2372cd4ab0e62724fb5934d534e462967b.exe	29
PID 2112 wrote to memory of 2392	2112	e7f1c9edb413fa69b12eba9e17e2ce2372cd4ab0e62724fb5934d534e462967b.exe	29
PID 2112 wrote to memory of 2392	2112	e7f1c9edb413fa69b12eba9e17e2ce2372cd4ab0e62724fb5934d534e462967b.exe	29
PID 2112 wrote to memory of 2392	2112	e7f1c9edb413fa69b12eba9e17e2ce2372cd4ab0e62724fb5934d534e462967b.exe	29

C:\Users\Admin\AppData\Local\Temp\e7f1c9edb413fa69b12eba9e17e2ce2372cd4ab0e62724fb5934d534e462967b.exe
"C:\Users\Admin\AppData\Local\Temp\e7f1c9edb413fa69b12eba9e17e2ce2372cd4ab0e62724fb5934d534e462967b.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2112
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\E7F1C9~1.EXE > nul
  2⤵
  - Deletes itself
  PID:2392

C:\Windows\Debug\rwmhost.exe
C:\Windows\Debug\rwmhost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:1296

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
200KB

MD5
ec32d3e23360fe96bd66018b2b11b246

SHA1
5711febfa37ab9c2953dfe4408e8179bb6189925

SHA256
20640806571c893a175c3d88d19e9504578a070dcda9dd97176d2d0a359d4932

SHA512
8b23b6f27f38a2574e6941d13e95df5f68b9e4809bdeb4e9c7508e327ff9ecf3ad536860c39e40fb9db8940afddba96f95fbfd0a1c286bdf819c84b54d47ea08

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