2ec7cb891a4d2ad85fbf43e19298f7103c427e7244a4909b72d8c7ff65ac3193

Analysis

max time kernel
142s
max time network
133s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
12/10/2023, 17:57

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General

Target

2ec7cb891a4d2ad85fbf43e19298f7103c427e7244a4909b72d8c7ff65ac3193.exe
Size

199KB
MD5

60589adec8738cc714cf8a6fb2917152
SHA1

20bd11d82c6ad9862e3f3240741f842123617209
SHA256

2ec7cb891a4d2ad85fbf43e19298f7103c427e7244a4909b72d8c7ff65ac3193
SHA512

5e9a8c06be800ee964e4a8cc0a844ee857b2029e2cb39566c397b72e27f0e8f3f95d403f57584213f25c05c9da8de9ce00e9186f907e7065752cedd76a1a4750
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOl:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXX0

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2900	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2088	zskhost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\zskhost.exe	2ec7cb891a4d2ad85fbf43e19298f7103c427e7244a4909b72d8c7ff65ac3193.exe
File opened for modification	C:\Windows\Debug\zskhost.exe	2ec7cb891a4d2ad85fbf43e19298f7103c427e7244a4909b72d8c7ff65ac3193.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	zskhost.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	zskhost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2984	2ec7cb891a4d2ad85fbf43e19298f7103c427e7244a4909b72d8c7ff65ac3193.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2984 wrote to memory of 2900	2984	2ec7cb891a4d2ad85fbf43e19298f7103c427e7244a4909b72d8c7ff65ac3193.exe	29
PID 2984 wrote to memory of 2900	2984	2ec7cb891a4d2ad85fbf43e19298f7103c427e7244a4909b72d8c7ff65ac3193.exe	29
PID 2984 wrote to memory of 2900	2984	2ec7cb891a4d2ad85fbf43e19298f7103c427e7244a4909b72d8c7ff65ac3193.exe	29
PID 2984 wrote to memory of 2900	2984	2ec7cb891a4d2ad85fbf43e19298f7103c427e7244a4909b72d8c7ff65ac3193.exe	29

C:\Users\Admin\AppData\Local\Temp\2ec7cb891a4d2ad85fbf43e19298f7103c427e7244a4909b72d8c7ff65ac3193.exe
"C:\Users\Admin\AppData\Local\Temp\2ec7cb891a4d2ad85fbf43e19298f7103c427e7244a4909b72d8c7ff65ac3193.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2984
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\2EC7CB~1.EXE > nul
  2⤵
  - Deletes itself
  PID:2900

C:\Windows\Debug\zskhost.exe
C:\Windows\Debug\zskhost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:2088

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
51d36698ed0c937a1f5737f35cb2e07c

SHA1
7707f719c8e7b75ac1f18de538baaccba505b51b

SHA256
5c3095a1164584ebefcd33dc28f9c707f8ec60093449cdaba80d4264bf5d2314

SHA512
2edec8697430313f5ace6e85162d0098b0d1b1ca748c1ab6dc375ceeff61e5acacd93ff155d3404c8b36ca229e2103d89d184f61455e29849c5d72fcf17a7d5e

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