eec4ef84471a1fe215db037a40134e30d25024c009a5bedd0b34bee5bf35b4e6

Analysis

max time kernel
142s
max time network
130s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
14/10/2023, 00:59

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General

Target

eec4ef84471a1fe215db037a40134e30d25024c009a5bedd0b34bee5bf35b4e6.exe
Size

198KB
MD5

4623df5f42f1c17788f80a4928cb8440
SHA1

c59dd6cd1a21464de38142b8b13b1fac393461a7
SHA256

eec4ef84471a1fe215db037a40134e30d25024c009a5bedd0b34bee5bf35b4e6
SHA512

00e90d6e221d1eaeba15728cec62d4effcbdb0b9052294429f88f936c6c40ebf1ef7164c48a345c56885a57e7f7057073636bda2f9b7b1bd3bfbefe6ea40929c
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOl:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXE

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2528	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2024	rwmhost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\rwmhost.exe	eec4ef84471a1fe215db037a40134e30d25024c009a5bedd0b34bee5bf35b4e6.exe
File opened for modification	C:\Windows\Debug\rwmhost.exe	eec4ef84471a1fe215db037a40134e30d25024c009a5bedd0b34bee5bf35b4e6.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	1076	eec4ef84471a1fe215db037a40134e30d25024c009a5bedd0b34bee5bf35b4e6.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1076 wrote to memory of 2528	1076	eec4ef84471a1fe215db037a40134e30d25024c009a5bedd0b34bee5bf35b4e6.exe	29
PID 1076 wrote to memory of 2528	1076	eec4ef84471a1fe215db037a40134e30d25024c009a5bedd0b34bee5bf35b4e6.exe	29
PID 1076 wrote to memory of 2528	1076	eec4ef84471a1fe215db037a40134e30d25024c009a5bedd0b34bee5bf35b4e6.exe	29
PID 1076 wrote to memory of 2528	1076	eec4ef84471a1fe215db037a40134e30d25024c009a5bedd0b34bee5bf35b4e6.exe	29

C:\Users\Admin\AppData\Local\Temp\eec4ef84471a1fe215db037a40134e30d25024c009a5bedd0b34bee5bf35b4e6.exe
"C:\Users\Admin\AppData\Local\Temp\eec4ef84471a1fe215db037a40134e30d25024c009a5bedd0b34bee5bf35b4e6.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1076
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\EEC4EF~1.EXE > nul
  2⤵
  - Deletes itself
  PID:2528

C:\Windows\Debug\rwmhost.exe
C:\Windows\Debug\rwmhost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:2024

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
ecf55029854c00df21a75751a84f368e

SHA1
6bcc1ee8817c633156c181892b2e9e527c1e85a7

SHA256
65ebd4e5c9dd9792735c5843e59d61a10991d232e1ff715882cf9956e0c4da53

SHA512
df92a3cfedeb8a810c3df5ed0a6e73c4a385b7abe207b4c290684e33fb744b46f2f88e3b310504333477453e71796db2ab6384dc8e9c78992da08e33dfad350e

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