97e64043c891792188f4b0a812edccff9e1c584e30ffd57439eed1bf16fbf8d7

Analysis

max time kernel
43s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
15-11-2022 10:25

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General

Target

pss10r.chm
Size

392KB
MD5

54011592a20f7e581e25c393ed8a08e2
SHA1

25aacce53c9f7fbb521da79eaf213390413f6c42
SHA256

0d3a9f075e8003cd83914dde494ab3c457f68a8c8797d9060bc565c929eac515
SHA512

d88e143252e9961c3fff96d58712b0a62d8547bb605b2e66c383252c516c9be0ad4e47a58e13ee365da7ec0562c775c5abcbe8814f3f5b2e2da498fe261b1510
SSDEEP

6144:JWDGvSvzMJP0MFNZQFsI5w3IohQsEuzzH1Skh3j/A4FCR4CKK3xhk3K:JQGabxkvqw3BAeH1SkdIyazHhk3K

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 2 IoCs

adware spyware

Modify Registry

T1112

Processes:

hh.exemshta.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	hh.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	mshta.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

hh.exe

pid process

1980 hh.exe
1980 hh.exe

pid	process
1980	hh.exe
1980	hh.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

hh.execmd.exe

description	pid	process	target process
PID 1980 wrote to memory of 1408	1980	hh.exe	cmd.exe
PID 1980 wrote to memory of 1408	1980	hh.exe	cmd.exe
PID 1980 wrote to memory of 1408	1980	hh.exe	cmd.exe
PID 1408 wrote to memory of 1996	1408	cmd.exe	mshta.exe
PID 1408 wrote to memory of 1996	1408	cmd.exe	mshta.exe
PID 1408 wrote to memory of 1996	1408	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:1980

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c start/min mshta %CD%\pss10r.chm
2⤵
- Suspicious use of WriteProcessMemory
PID:1408

C:\Windows\system32\mshta.exe
mshta C:\Users\Admin\AppData\Local\Temp\pss10r.chm
3⤵
- Modifies Internet Explorer settings
PID:1996

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1408-55-0x0000000000000000-mapping.dmp

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memory/1980-54-0x000007FEFB7B1000-0x000007FEFB7B3000-memory.dmp

Filesize
8KB

Download
memory/1996-56-0x0000000000000000-mapping.dmp

Download