84ca53c75d42949b3598d0147c003c3cbde77f19e8d465e1fab92261fd0e4d2f

Analysis

max time kernel
141s
max time network
127s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
06/11/2023, 11:41

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General

Target

84ca53c75d42949b3598d0147c003c3cbde77f19e8d465e1fab92261fd0e4d2f.exe
Size

199KB
MD5

456cfaafc870356b2ea79a2b66b42111
SHA1

99d59b05d25745897c5a3128a9fa1cfc1270ad04
SHA256

84ca53c75d42949b3598d0147c003c3cbde77f19e8d465e1fab92261fd0e4d2f
SHA512

fb7744f4157f99fa71410a68dc71c0cc5b6656fa34350584faa18c40d1500ef04ae270ee36c54ec91fa452286a25ae9236c2884cff54b6bedd457939ec35b28b
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOp:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXU

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2692	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2148	zskhost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\zskhost.exe	84ca53c75d42949b3598d0147c003c3cbde77f19e8d465e1fab92261fd0e4d2f.exe
File opened for modification	C:\Windows\Debug\zskhost.exe	84ca53c75d42949b3598d0147c003c3cbde77f19e8d465e1fab92261fd0e4d2f.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	zskhost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	zskhost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1164	84ca53c75d42949b3598d0147c003c3cbde77f19e8d465e1fab92261fd0e4d2f.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1164 wrote to memory of 2692	1164	84ca53c75d42949b3598d0147c003c3cbde77f19e8d465e1fab92261fd0e4d2f.exe	29
PID 1164 wrote to memory of 2692	1164	84ca53c75d42949b3598d0147c003c3cbde77f19e8d465e1fab92261fd0e4d2f.exe	29
PID 1164 wrote to memory of 2692	1164	84ca53c75d42949b3598d0147c003c3cbde77f19e8d465e1fab92261fd0e4d2f.exe	29
PID 1164 wrote to memory of 2692	1164	84ca53c75d42949b3598d0147c003c3cbde77f19e8d465e1fab92261fd0e4d2f.exe	29

C:\Users\Admin\AppData\Local\Temp\84ca53c75d42949b3598d0147c003c3cbde77f19e8d465e1fab92261fd0e4d2f.exe
"C:\Users\Admin\AppData\Local\Temp\84ca53c75d42949b3598d0147c003c3cbde77f19e8d465e1fab92261fd0e4d2f.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1164
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\84CA53~1.EXE > nul
  2⤵
  - Deletes itself
  PID:2692

C:\Windows\Debug\zskhost.exe
C:\Windows\Debug\zskhost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:2148

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\zskhost.exe

Filesize
199KB

MD5
9d81302f93311a1919c872a06db8e9bc

SHA1
81af35f15111a012009a0cdf7844d34a80a073b2

SHA256
9c07992804c23bb3c0ee42561155706067fb0cad5d5af9918a564f0911d5cdd5

SHA512
7bd5d9d7e7c6d49c66ae36f874325a7a91cc00bb52bacfc9d82969ad0cd978b68e035f6efb0170df83cc5cc2a435085cc07076b267aa9c20bf5f6b980fd3e844

Download Submit
C:\Windows\debug\zskhost.exe

Filesize
199KB

MD5
9d81302f93311a1919c872a06db8e9bc

SHA1
81af35f15111a012009a0cdf7844d34a80a073b2

SHA256
9c07992804c23bb3c0ee42561155706067fb0cad5d5af9918a564f0911d5cdd5

SHA512
7bd5d9d7e7c6d49c66ae36f874325a7a91cc00bb52bacfc9d82969ad0cd978b68e035f6efb0170df83cc5cc2a435085cc07076b267aa9c20bf5f6b980fd3e844

Download Submit