f142cc80243c6a39378a0cceb5cee6b5d812a1a6fda8c7c8ffb5fcda618899a1

Analysis

max time kernel
141s
max time network
128s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
24-09-2023 01:16

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General

Target

f142cc80243c6a39378a0cceb5cee6b5d812a1a6fda8c7c8ffb5fcda618899a1.exe
Size

198KB
MD5

c193085517d0088f39746fe17795e2b1
SHA1

94e2f222f98399b1ba77a6ed309b9690a92e7253
SHA256

f142cc80243c6a39378a0cceb5cee6b5d812a1a6fda8c7c8ffb5fcda618899a1
SHA512

61d1e227c1a033730875adab793d37a3defae2868aac2885119a8df1a23adc9c7065b52915a0057d26bad359879732ca26226c5902442c87e831a82f18d96072
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOE:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXR

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2632	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
3000	zskhost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\zskhost.exe	f142cc80243c6a39378a0cceb5cee6b5d812a1a6fda8c7c8ffb5fcda618899a1.exe
File opened for modification	C:\Windows\Debug\zskhost.exe	f142cc80243c6a39378a0cceb5cee6b5d812a1a6fda8c7c8ffb5fcda618899a1.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	2692	f142cc80243c6a39378a0cceb5cee6b5d812a1a6fda8c7c8ffb5fcda618899a1.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 2632	2692	f142cc80243c6a39378a0cceb5cee6b5d812a1a6fda8c7c8ffb5fcda618899a1.exe	29
PID 2692 wrote to memory of 2632	2692	f142cc80243c6a39378a0cceb5cee6b5d812a1a6fda8c7c8ffb5fcda618899a1.exe	29
PID 2692 wrote to memory of 2632	2692	f142cc80243c6a39378a0cceb5cee6b5d812a1a6fda8c7c8ffb5fcda618899a1.exe	29
PID 2692 wrote to memory of 2632	2692	f142cc80243c6a39378a0cceb5cee6b5d812a1a6fda8c7c8ffb5fcda618899a1.exe	29

C:\Users\Admin\AppData\Local\Temp\f142cc80243c6a39378a0cceb5cee6b5d812a1a6fda8c7c8ffb5fcda618899a1.exe
"C:\Users\Admin\AppData\Local\Temp\f142cc80243c6a39378a0cceb5cee6b5d812a1a6fda8c7c8ffb5fcda618899a1.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2692
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\F142CC~1.EXE > nul
  2⤵
  - Deletes itself
  PID:2632

C:\Windows\Debug\zskhost.exe
C:\Windows\Debug\zskhost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:3000

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
198KB

MD5
aaedeb706e1b391535b33bf79573b132

SHA1
78687c66534040cbae9ac967551be1bd434fdedf

SHA256
571b5177e9d3c78144c4146c3115ae33b136f6c122756785025fc6f46ecb3d24

SHA512
8ddcedb5b7a1a9ab01f38365d4df047ab2d6029980cd3e50010c302cdbad1e1a167746e6f105e1b42543063a860002a2ad4746afec2e86c0d696bd0816e88d13

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