425f5003a91d1ecced29d4e5a5746806d0b7d5d4a3833c13b88677a3c27eb0de

Analysis

max time kernel
4265004s
max time network
41s
platform
windows10-2004_x64
resource
win10v2004-en-20220113
submitted
17-01-2022 18:00

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General

Target

KONUgynwW37Tb1K.exe
Size

398KB
MD5

bb040b47d2f6f564bb5fdb59ff610ced
SHA1

ff31a2d5284d43b4f2ffd27594bddf8352db3149
SHA256

425f5003a91d1ecced29d4e5a5746806d0b7d5d4a3833c13b88677a3c27eb0de
SHA512

c91949fea00e5cdddbee1daf914b1806f2b458a3bde2842f90d0f43d4e3247b952f8780443c4cce50c4c42c07ec32b4f514c87b427eca3a323087556b2eb7721

Score

5^/10

Malware Config

Signatures

Suspicious use of SetThreadContext 1 IoCs

Processes:

KONUgynwW37Tb1K.exe

description pid process target process

PID 1404 set thread context of 2316 1404 KONUgynwW37Tb1K.exe KONUgynwW37Tb1K.exe

description	pid	process	target process
PID 1404 set thread context of 2316	1404	KONUgynwW37Tb1K.exe	KONUgynwW37Tb1K.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

Processes:

MusNotification.exe

description	ioc	process
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	MusNotification.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	MusNotification.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

MusNotification.exe

description pid process

Token: SeShutdownPrivilege 3744 MusNotification.exe
Token: SeCreatePagefilePrivilege 3744 MusNotification.exe

description	pid	process
Token: SeShutdownPrivilege	3744	MusNotification.exe
Token: SeCreatePagefilePrivilege	3744	MusNotification.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

KONUgynwW37Tb1K.exe

description	pid	process	target process
PID 1404 wrote to memory of 2316	1404	KONUgynwW37Tb1K.exe	KONUgynwW37Tb1K.exe
PID 1404 wrote to memory of 2316	1404	KONUgynwW37Tb1K.exe	KONUgynwW37Tb1K.exe
PID 1404 wrote to memory of 2316	1404	KONUgynwW37Tb1K.exe	KONUgynwW37Tb1K.exe
PID 1404 wrote to memory of 2316	1404	KONUgynwW37Tb1K.exe	KONUgynwW37Tb1K.exe
PID 1404 wrote to memory of 2316	1404	KONUgynwW37Tb1K.exe	KONUgynwW37Tb1K.exe
PID 1404 wrote to memory of 2316	1404	KONUgynwW37Tb1K.exe	KONUgynwW37Tb1K.exe

C:\Users\Admin\AppData\Local\Temp\KONUgynwW37Tb1K.exe
"C:\Users\Admin\AppData\Local\Temp\KONUgynwW37Tb1K.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1404

C:\Users\Admin\AppData\Local\Temp\KONUgynwW37Tb1K.exe
"C:\Users\Admin\AppData\Local\Temp\KONUgynwW37Tb1K.exe"
2⤵
PID:2316

C:\Windows\system32\MusNotification.exe
C:\Windows\system32\MusNotification.exe
1⤵
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
PID:3744

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1404-133-0x00000000000E0000-0x000000000014A000-memory.dmp

Filesize
424KB

Download
memory/1404-134-0x00000000000E0000-0x000000000014A000-memory.dmp

Filesize
424KB

Download
memory/1404-135-0x0000000005150000-0x00000000056F4000-memory.dmp

Filesize
5.6MB

Download
memory/1404-136-0x0000000004AE0000-0x0000000004B72000-memory.dmp

Filesize
584KB

Download
memory/1404-137-0x0000000004CA0000-0x0000000004CAA000-memory.dmp

Filesize
40KB

Download
memory/1404-138-0x0000000004BA0000-0x0000000005144000-memory.dmp

Filesize
5.6MB

Download
memory/1404-139-0x00000000083D0000-0x000000000846C000-memory.dmp

Filesize
624KB

Download
memory/2316-140-0x0000000000000000-mapping.dmp

Download
memory/2316-141-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download