b09d2d89c491e774b3955eb85e60cd886357887992e7b00e28b90b9e2ee7bcde

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20230831-en
resource tags

arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
submitted
07-09-2023 18:59

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General

Target

2023-08-23_ab83ad3e46a84101a82f627af8125099_cobalt-strike_cobaltstrike_meterpreter_JC.dll
Size

203KB
MD5

ab83ad3e46a84101a82f627af8125099
SHA1

cdc2413fe1eadd6a6dd35fd710e326b0d385204f
SHA256

b09d2d89c491e774b3955eb85e60cd886357887992e7b00e28b90b9e2ee7bcde
SHA512

d9248c44e97e20e6980bc531675f9bbf340a1aeab5aff0615784dd6c895d97a4c26dd98d9947c4b67ba6b9ca6950cf7da2191c976975d3d3e56cc808be6565bb
SSDEEP

3072:PYaW8qUEflaASmkDs1oo8CUS5D+u73vqQ+z+F62hAxquMfgj5jdUC5eg:PFHEfoAaDQoo8CUwxTvhU+F66fgVj

Score

5^/10

Malware Config

Signatures

Drops file in System32 directory 1 IoCs

Processes:

svchost.exe

description	ioc	process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{FD8ABE36-C6B2-43F3-856D-8E19A5318507}.catalogItem	svchost.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2628 2844 WerFault.exe rundll32.exe

pid	pid_target	process	target process
2628	2844	WerFault.exe	rundll32.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	svchost.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 972 wrote to memory of 2844	972	rundll32.exe	rundll32.exe
PID 972 wrote to memory of 2844	972	rundll32.exe	rundll32.exe
PID 972 wrote to memory of 2844	972	rundll32.exe	rundll32.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2023-08-23_ab83ad3e46a84101a82f627af8125099_cobalt-strike_cobaltstrike_meterpreter_JC.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:972

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2023-08-23_ab83ad3e46a84101a82f627af8125099_cobalt-strike_cobaltstrike_meterpreter_JC.dll,#1
2⤵
PID:2844

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2844 -s 632
3⤵
- Program crash
PID:2628

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 2844 -ip 2844
1⤵
PID:4672

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:3460

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Resource Development

Reconnaissance

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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