26a8acb862ae176d149801a6714296c29f7a532719bc05b3031e39868bff36db

Analysis

max time kernel
45s
max time network
48s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
15-11-2022 06:33

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General

Target

pss10r.chm
Size

392KB
MD5

8e5d477d42c9272448757883298cf37e
SHA1

6add06ab9900bf173d187b56b3269a0fac4a8a17
SHA256

be625229a8d2903ad4d680e47f8a93fc52cbd2e8b03594bb0e228797f786a7d4
SHA512

6cc431da961c273e65e03b1eee7fa62a7d4ec6998718d66de703432bcd1712d694bd4383ac7a61f10a2e864193bea2c3e4c0463140841a989be2994106a0ff0b
SSDEEP

6144:uWDGvSvzMJP0MFNZQFsI5w3IohQsEuzzH1Skh3j/A4FCR4CKK3xhkQ:uQGabxkvqw3BAeH1SkdIyazHhkQ

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Modifies Internet Explorer settings 1 TTPs 1 IoCs
adware spyware

Modify Registry
T1112

Processes:

hh.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main hh.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

hh.exe

pid process

1812 hh.exe
1812 hh.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main	hh.exe

pid	process
1812	hh.exe
1812	hh.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

hh.execmd.exe

description	pid	process	target process
PID 1812 wrote to memory of 1272	1812	hh.exe	cmd.exe
PID 1812 wrote to memory of 1272	1812	hh.exe	cmd.exe
PID 1812 wrote to memory of 1272	1812	hh.exe	cmd.exe
PID 1272 wrote to memory of 1760	1272	cmd.exe	mshta.exe
PID 1272 wrote to memory of 1760	1272	cmd.exe	mshta.exe
PID 1272 wrote to memory of 1760	1272	cmd.exe	mshta.exe

C:\Windows\hh.exe
"C:\Windows\hh.exe" C:\Users\Admin\AppData\Local\Temp\pss10r.chm
1⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1812

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c start/min mshta %CD%\pss10r.chm
2⤵
- Suspicious use of WriteProcessMemory
PID:1272

C:\Windows\system32\mshta.exe
mshta C:\Users\Admin\AppData\Local\Temp\pss10r.chm
3⤵
PID:1760

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1272-55-0x0000000000000000-mapping.dmp

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memory/1760-56-0x0000000000000000-mapping.dmp

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memory/1812-54-0x000007FEFBCA1000-0x000007FEFBCA3000-memory.dmp

Filesize
8KB

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