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
16s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
25/03/2024, 20:45

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General

Target

Prefetch/CONHOST.EXE-0C6456FB.pf
Size

4KB
MD5

2017a8fa498f093cace11ef065154a46
SHA1

0ea87f0846897e5eb958adc85ab4c8209336d81f
SHA256

f44e26446f0c2b423ec8a5e3e51c9c44c2b3f8a34ff9b3f451dcb7f6ec40ae95
SHA512

04fff13e7150ecafdea18252dce5da79dde3aa2b756c6294fc57bfc9270ad70aa4f9b0715cca3b81115ed64d963601acb0fccbd72c20444884b7ea78711b31b9
SSDEEP

96:k8yP0Gd+XPIw1ci2wCKyN1G8WXEozGZ2agXmGt60TYPlCSsD4fLH4iZuh:ePjd+XQJizCKwAZB67QUTYiZuh

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-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pf_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.pf	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.pf\ = "pf_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pf_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pf_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pf_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_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-1-5-21-3627615824-4061627003-3019543961-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\pf_auto_file	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2720	AcroRd32.exe
2720	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 2284	2128	cmd.exe	29
PID 2128 wrote to memory of 2284	2128	cmd.exe	29
PID 2128 wrote to memory of 2284	2128	cmd.exe	29
PID 2284 wrote to memory of 2720	2284	rundll32.exe	30
PID 2284 wrote to memory of 2720	2284	rundll32.exe	30
PID 2284 wrote to memory of 2720	2284	rundll32.exe	30
PID 2284 wrote to memory of 2720	2284	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Prefetch\CONHOST.EXE-0C6456FB.pf
1⤵
- Suspicious use of WriteProcessMemory
PID:2128
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Prefetch\CONHOST.EXE-0C6456FB.pf
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2284
- - 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\CONHOST.EXE-0C6456FB.pf"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2720

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
9072521b9c145782581d9976ef8142f2

SHA1
bff9a638e86a8243243c70961e7788429da1efcd

SHA256
1d64f34c0d3503f92b074f41735eaa53cad30fee3c439b318dd43a304abaff70

SHA512
ccfd78a3f3648e277a9071ccf56c42f667fc8b6fd308b6e81fcb50e8f79244c95797b0379ee4a45ea627a0ca1d12e8ccf1b852e54cc77631c8afd37b7415fadf

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