993920a446828bc0e120049d834bf773b4f681d8bb202f36c0c313c2fec2a244

Analysis

max time kernel
141s
max time network
130s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
18/10/2024, 04:14

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General

Target

993920a446828bc0e120049d834bf773b4f681d8bb202f36c0c313c2fec2a244.exe
Size

195KB
MD5

1c447663e8073593b337440a1940d9da
SHA1

15195b6f82de7b0bad6885170bb7af1bc062115c
SHA256

993920a446828bc0e120049d834bf773b4f681d8bb202f36c0c313c2fec2a244
SHA512

8a94bcb79bbb4b1a8144b8feb367f3a8cbc3d1b96e6fbbeb73bd23c50a122ebfc078ffd315985f14407269b8b986b6252131e2a917b454462a3ffb305ea7b7da
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOh:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXA

Score

7^/10

defense_evasion discovery

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3048	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2876	rwmhost.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\rwmhost.exe	993920a446828bc0e120049d834bf773b4f681d8bb202f36c0c313c2fec2a244.exe
File opened for modification	C:\Windows\Debug\rwmhost.exe	993920a446828bc0e120049d834bf773b4f681d8bb202f36c0c313c2fec2a244.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	993920a446828bc0e120049d834bf773b4f681d8bb202f36c0c313c2fec2a244.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rwmhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

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	2776	993920a446828bc0e120049d834bf773b4f681d8bb202f36c0c313c2fec2a244.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2776 wrote to memory of 3048	2776	993920a446828bc0e120049d834bf773b4f681d8bb202f36c0c313c2fec2a244.exe	31
PID 2776 wrote to memory of 3048	2776	993920a446828bc0e120049d834bf773b4f681d8bb202f36c0c313c2fec2a244.exe	31
PID 2776 wrote to memory of 3048	2776	993920a446828bc0e120049d834bf773b4f681d8bb202f36c0c313c2fec2a244.exe	31
PID 2776 wrote to memory of 3048	2776	993920a446828bc0e120049d834bf773b4f681d8bb202f36c0c313c2fec2a244.exe	31

C:\Users\Admin\AppData\Local\Temp\993920a446828bc0e120049d834bf773b4f681d8bb202f36c0c313c2fec2a244.exe
"C:\Users\Admin\AppData\Local\Temp\993920a446828bc0e120049d834bf773b4f681d8bb202f36c0c313c2fec2a244.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2776
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\993920~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3048

C:\Windows\Debug\rwmhost.exe
C:\Windows\Debug\rwmhost.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Checks processor information in registry
PID:2876

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\debug\rwmhost.exe

Filesize
195KB

MD5
84eed70ef45a7f571d3ad571f83717eb

SHA1
9231c03a7f678ecf9d872df2a6e5ac96af65fa25

SHA256
b4b78383213260456cf3ba3e0aae9a47cb22ead186e024c68964271a3c7df79b

SHA512
701492fa44237806d0a67938d85fdd68502af9c1fc41a2b8b5f1b67670eae99758280387ea3e4d52a43b282a002a5c70fab1315becfc2a5d776ea4a8e3d5841a

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