841a98464457d2fceff8a35e6b575b1e5e0681f7232cb3c2b94c698e38960a25

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25/03/2024, 21:05

240325-zxdnnahe48 3

25/03/2024, 20:59

25/03/2024, 20:56

25/03/2024, 20:51

25/03/2024, 20:45

25/03/2024, 20:38

25/03/2024, 20:36

Analysis

max time kernel
18s
max time network
18s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/03/2024, 20:56

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General

Target

Prefetch/WINDOWSDESKTOP-RUNTIME-6.0.14-DB6DE8EF.pf
Size

11KB
MD5

5660dcadcd79f1cabf0dfd989f0b3c55
SHA1

7b0229e0aed1a707ae38957d78cbfae4f200694a
SHA256

f7f4656565173a8d5f343226b02b9abbd0f19bdf2c260cd718c4d9a02f683e92
SHA512

3f26c1092b73bba36eabd8b3284e30e22a7ddceb64722bcf0a1a78f56d3047c31b4fc3402dd4f94337f29e0744639c70a961b6b2d91abf92084cec19c4e815e6
SSDEEP

192:dGGrAb85WYM9kpRWGXyvGp4dhbzOtDzNIea9GYWRkpb0JArvsAeHl:d3S8pMmJy08xzkFTlYWTJMkDF

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pf_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pf_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pf_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\.pf	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\.pf\ = "pf_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pf_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pf_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pf_auto_file	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2544	AcroRd32.exe
2544	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 828 wrote to memory of 2660	828	cmd.exe	29
PID 828 wrote to memory of 2660	828	cmd.exe	29
PID 828 wrote to memory of 2660	828	cmd.exe	29
PID 2660 wrote to memory of 2544	2660	rundll32.exe	30
PID 2660 wrote to memory of 2544	2660	rundll32.exe	30
PID 2660 wrote to memory of 2544	2660	rundll32.exe	30
PID 2660 wrote to memory of 2544	2660	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Prefetch\WINDOWSDESKTOP-RUNTIME-6.0.14-DB6DE8EF.pf
1⤵
- Suspicious use of WriteProcessMemory
PID:828
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Prefetch\WINDOWSDESKTOP-RUNTIME-6.0.14-DB6DE8EF.pf
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2660
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\Prefetch\WINDOWSDESKTOP-RUNTIME-6.0.14-DB6DE8EF.pf"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2544

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
a93142f81e0e6ec33c70a81174eae4ae

SHA1
2fbfe2b3b3b4ad6bfcfca7a00ca23c247a519126

SHA256
ce12e110d95d7780701060f5840142ba13777a351955b3242335e4b207b3802e

SHA512
edcbafdd5ddaf7fd529a108d797568b183c9a97f2576c1dfe2d51705d62cd86d68455657405ef498f333f43b56787a69a82692ac17a0569af49153b97f1af58f

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