e9fdc7c9f967ae208a63fffd55b08876761bfe4d6b769fb442b1e45289879e76

Analysis

max time kernel
141s
max time network
128s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
11/11/2023, 10:45

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General

Target

e9fdc7c9f967ae208a63fffd55b08876761bfe4d6b769fb442b1e45289879e76.exe
Size

194KB
MD5

a65a1b9b45b85f5b8b9fd09bf8295511
SHA1

977bf54b60813c6a429d24f50839646d0ae83fba
SHA256

e9fdc7c9f967ae208a63fffd55b08876761bfe4d6b769fb442b1e45289879e76
SHA512

f830fdde7327af98146177d9ada645caf10132cb2f47f24a564d3c38e6b15496b631c58974cd5ca70206010459ff5b20b84fc7901ccf99158dcd6f96a7a57427
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOU:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXx

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2856	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2284	zskhost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\zskhost.exe	e9fdc7c9f967ae208a63fffd55b08876761bfe4d6b769fb442b1e45289879e76.exe
File opened for modification	C:\Windows\Debug\zskhost.exe	e9fdc7c9f967ae208a63fffd55b08876761bfe4d6b769fb442b1e45289879e76.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	2516	e9fdc7c9f967ae208a63fffd55b08876761bfe4d6b769fb442b1e45289879e76.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2516 wrote to memory of 2856	2516	e9fdc7c9f967ae208a63fffd55b08876761bfe4d6b769fb442b1e45289879e76.exe	29
PID 2516 wrote to memory of 2856	2516	e9fdc7c9f967ae208a63fffd55b08876761bfe4d6b769fb442b1e45289879e76.exe	29
PID 2516 wrote to memory of 2856	2516	e9fdc7c9f967ae208a63fffd55b08876761bfe4d6b769fb442b1e45289879e76.exe	29
PID 2516 wrote to memory of 2856	2516	e9fdc7c9f967ae208a63fffd55b08876761bfe4d6b769fb442b1e45289879e76.exe	29

C:\Users\Admin\AppData\Local\Temp\e9fdc7c9f967ae208a63fffd55b08876761bfe4d6b769fb442b1e45289879e76.exe
"C:\Users\Admin\AppData\Local\Temp\e9fdc7c9f967ae208a63fffd55b08876761bfe4d6b769fb442b1e45289879e76.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2516
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\E9FDC7~1.EXE > nul
  2⤵
  - Deletes itself
  PID:2856

C:\Windows\Debug\zskhost.exe
C:\Windows\Debug\zskhost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:2284

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
194KB

MD5
515c4a7f4f89c052c885e5fdad968a9d

SHA1
828acc7108ee8b775209e7732b0aa762ab24b02e

SHA256
3394f9556c233cd3293f2f0dea0b1b0cd2a458386064fb921cd69855b92bf77f

SHA512
3c68842747a0acad8f42cba6fe16f3410fa3909bba9572ea2303b33d5d45f316e022f5075faf6227b0a797c851fd8113de740198f44aef38799f1426dac63482

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

Filesize
194KB

MD5
515c4a7f4f89c052c885e5fdad968a9d

SHA1
828acc7108ee8b775209e7732b0aa762ab24b02e

SHA256
3394f9556c233cd3293f2f0dea0b1b0cd2a458386064fb921cd69855b92bf77f

SHA512
3c68842747a0acad8f42cba6fe16f3410fa3909bba9572ea2303b33d5d45f316e022f5075faf6227b0a797c851fd8113de740198f44aef38799f1426dac63482

Download Submit