01b06d0edf88424afce8026c8cf914837212e82ab064f966dd45fa6b55882fdb

Analysis

max time kernel
85s
max time network
48s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
14-11-2022 19:45

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General

Target

pss10r.chm
Size

392KB
MD5

1ab1fc892f0d73b30b958124d51a1978
SHA1

3c59da8769460ed56bfd31a20d091313d7be9085
SHA256

1868997bb4c11f537882632f9ffbc58e3241417f4cf79fcdc4ae46ddc81a6f57
SHA512

47528cdb195416730d7cd049dbec6eefffd149c082fe737a6b706ed3d360547f22d71882d46c09e741a08bb19b4a2c09891ba4b148604f5425311a1a9eed20b5
SSDEEP

6144:iWDGvSvzMJP0MFNZQFsI5w3IohQsEuzzH1Skh3j/A4FCR4CKK3xhkF:iQGabxkvqw3BAeH1SkdIyazHhkF

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:

mshta.exehh.exe

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

1896 hh.exe
1896 hh.exe

pid	process
1896	hh.exe
1896	hh.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

hh.execmd.exe

description	pid	process	target process
PID 1896 wrote to memory of 1744	1896	hh.exe	cmd.exe
PID 1896 wrote to memory of 1744	1896	hh.exe	cmd.exe
PID 1896 wrote to memory of 1744	1896	hh.exe	cmd.exe
PID 1744 wrote to memory of 968	1744	cmd.exe	mshta.exe
PID 1744 wrote to memory of 968	1744	cmd.exe	mshta.exe
PID 1744 wrote to memory of 968	1744	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:1896

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c start/min mshta %CD%\pss10r.chm
2⤵
- Suspicious use of WriteProcessMemory
PID:1744

C:\Windows\system32\mshta.exe
mshta C:\Users\Admin\AppData\Local\Temp\pss10r.chm
3⤵
- Modifies Internet Explorer settings
PID:968

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/968-56-0x0000000000000000-mapping.dmp

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memory/1744-55-0x0000000000000000-mapping.dmp

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memory/1896-54-0x000007FEFC621000-0x000007FEFC623000-memory.dmp

Filesize
8KB

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