9b4efc4651d9892025dfa9a918b391faed88bfe10f1a4c98b283827d2d6e8cb2

Analysis

max time kernel
172s
max time network
175s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
13/10/2023, 01:06

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

9b4efc4651d9892025dfa9a918b391faed88bfe10f1a4c98b283827d2d6e8cb2.exe
Size

198KB
MD5

0c30b1b723fc8fd4d3423c9f021f36ed
SHA1

db87e51f02b91f96296da82f0a5daa49e89bb49f
SHA256

9b4efc4651d9892025dfa9a918b391faed88bfe10f1a4c98b283827d2d6e8cb2
SHA512

3ade16250fa0f48f265a5233ae95323d11ffe8c4b36378652b25fdddc4078efd784f7b636937921915d63711655b9435ab38b0ebd9e7522de0849aae3d91217a
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOO:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXX7

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2632	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2124	jaohost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\jaohost.exe	9b4efc4651d9892025dfa9a918b391faed88bfe10f1a4c98b283827d2d6e8cb2.exe
File opened for modification	C:\Windows\Debug\jaohost.exe	9b4efc4651d9892025dfa9a918b391faed88bfe10f1a4c98b283827d2d6e8cb2.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	jaohost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	jaohost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3036	9b4efc4651d9892025dfa9a918b391faed88bfe10f1a4c98b283827d2d6e8cb2.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3036 wrote to memory of 2632	3036	9b4efc4651d9892025dfa9a918b391faed88bfe10f1a4c98b283827d2d6e8cb2.exe	30
PID 3036 wrote to memory of 2632	3036	9b4efc4651d9892025dfa9a918b391faed88bfe10f1a4c98b283827d2d6e8cb2.exe	30
PID 3036 wrote to memory of 2632	3036	9b4efc4651d9892025dfa9a918b391faed88bfe10f1a4c98b283827d2d6e8cb2.exe	30
PID 3036 wrote to memory of 2632	3036	9b4efc4651d9892025dfa9a918b391faed88bfe10f1a4c98b283827d2d6e8cb2.exe	30

C:\Users\Admin\AppData\Local\Temp\9b4efc4651d9892025dfa9a918b391faed88bfe10f1a4c98b283827d2d6e8cb2.exe
"C:\Users\Admin\AppData\Local\Temp\9b4efc4651d9892025dfa9a918b391faed88bfe10f1a4c98b283827d2d6e8cb2.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3036
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\9B4EFC~1.EXE > nul
  2⤵
  - Deletes itself
  PID:2632

C:\Windows\Debug\jaohost.exe
C:\Windows\Debug\jaohost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:2124

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

Loading Replay Monitor...

Downloads

C:\Windows\debug\jaohost.exe

Filesize
198KB

MD5
6c36df56141222ae7f0087f0bc0654cb

SHA1
fceefdb3b95cf5ebbd4fa282a4d6706aad392226

SHA256
b64614df83ad2e11fe58e063a6a9db1e98034b66663c258b7bef3baf8acb0ef1

SHA512
d19a12037afae63e13ef8dd0fe44dc31c3ef4e667100f4532ac8c5f0afc1c94b7bdd91bddc113dcfa7b2f06041fff7945046a4ab64393507d6d0a774307cc373

Download Submit