dbf0e3d243cd20179ef598a3264d279c742727710671da5243b8d0f04e6d62c4

Analysis

max time kernel
143s
max time network
142s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
10/10/2023, 21:55

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General

Target

dbf0e3d243cd20179ef598a3264d279c742727710671da5243b8d0f04e6d62c4.exe
Size

199KB
MD5

8450c4e5c4ee9f5a112be4b76c08c3a9
SHA1

38422652e9a069b3802fb90ff49c868950e6c388
SHA256

dbf0e3d243cd20179ef598a3264d279c742727710671da5243b8d0f04e6d62c4
SHA512

61125de2859e165d4e6b699d984797311094c8f64d35ba6263e157ab6a93b02968c359dc06078890d63803bce1780cfa551f48d6e763e683ec347b5a952e79e5
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOd:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXI

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2656	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2108	rwmhost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Debug\rwmhost.exe	dbf0e3d243cd20179ef598a3264d279c742727710671da5243b8d0f04e6d62c4.exe
File created	C:\Windows\Debug\rwmhost.exe	dbf0e3d243cd20179ef598a3264d279c742727710671da5243b8d0f04e6d62c4.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	2136	dbf0e3d243cd20179ef598a3264d279c742727710671da5243b8d0f04e6d62c4.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2136 wrote to memory of 2656	2136	dbf0e3d243cd20179ef598a3264d279c742727710671da5243b8d0f04e6d62c4.exe	29
PID 2136 wrote to memory of 2656	2136	dbf0e3d243cd20179ef598a3264d279c742727710671da5243b8d0f04e6d62c4.exe	29
PID 2136 wrote to memory of 2656	2136	dbf0e3d243cd20179ef598a3264d279c742727710671da5243b8d0f04e6d62c4.exe	29
PID 2136 wrote to memory of 2656	2136	dbf0e3d243cd20179ef598a3264d279c742727710671da5243b8d0f04e6d62c4.exe	29

C:\Users\Admin\AppData\Local\Temp\dbf0e3d243cd20179ef598a3264d279c742727710671da5243b8d0f04e6d62c4.exe
"C:\Users\Admin\AppData\Local\Temp\dbf0e3d243cd20179ef598a3264d279c742727710671da5243b8d0f04e6d62c4.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2136
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\DBF0E3~1.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:2108

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
199KB

MD5
6a3c0a2d60a0707ae3cfbf7723efa36e

SHA1
5db84b2b56f7ebabaf090b4d7b41f4e1150242ac

SHA256
0a2a3955fc05b945165c6700c7feb2d2cd2c9bca8e52010f36307d3ce09fc9c4

SHA512
77fb5c3431b7291b7c2336b6db9654f911ef8d222a731969b75a2d3d20177da808dd9f3dcdd8e5e484a98194e7c4201cdafb317d71a853348ef07844bb42998e

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