841a98464457d2fceff8a35e6b575b1e5e0681f7232cb3c2b94c698e38960a25

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25/03/2024, 21:05

240325-zxdnnahe48 3

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25/03/2024, 20:38

25/03/2024, 20:36

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
25/03/2024, 20:38

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Report Analysis Logs

General

Target

Prefetch/APPINSTALLERFULLTRUSTAPPSERVI-ADC5D7F4.pf
Size

9KB
MD5

6a2f494245822149e60975e62ae7ceef
SHA1

173e49008a45f9c1589d675b3fd4e21b3507d185
SHA256

78b813ea7c561c94f9ee8e8ef6796a35d5a4d14f389d2a5bcbae1ad1513b908b
SHA512

6a4f030e4150f84ec19ba0fdb9623f8afffce7ad26164161f551387e62a351feeff4fb13780b8a4d2e48ded50cf04ab3f9dfad45fcf43af19483dffeadde6f61
SSDEEP

192:5P0Rl+nK9JLlqPbnEa7hbk7HVT1AYauYP/DwEpSvYT/onI+jT7CR0NtawbJldabB:+Rl+K9JLcjnP9m51AgYzwTv6AnIKT7CN

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	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	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.pf\ = "pf_auto_file"	rundll32.exe
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\Local Settings	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

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2664	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2664	AcroRd32.exe
2664	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1540 wrote to memory of 1876	1540	cmd.exe	29
PID 1540 wrote to memory of 1876	1540	cmd.exe	29
PID 1540 wrote to memory of 1876	1540	cmd.exe	29
PID 1876 wrote to memory of 2664	1876	rundll32.exe	30
PID 1876 wrote to memory of 2664	1876	rundll32.exe	30
PID 1876 wrote to memory of 2664	1876	rundll32.exe	30
PID 1876 wrote to memory of 2664	1876	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Prefetch\APPINSTALLERFULLTRUSTAPPSERVI-ADC5D7F4.pf
1⤵
- Suspicious use of WriteProcessMemory
PID:1540
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Prefetch\APPINSTALLERFULLTRUSTAPPSERVI-ADC5D7F4.pf
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1876
- - 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\APPINSTALLERFULLTRUSTAPPSERVI-ADC5D7F4.pf"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2664

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
653eec6455b5cf76fcad5cc572e6db4a

SHA1
65ddfa08c68befe115087a5dde2901e0f4b42a0c

SHA256
fa61a9843de146ef147e5f062418ab0b8e48232eedc5ab4384057536d45528de

SHA512
13fab6097500acb024eec6096603b305e0b478067e60124d69c2c51980378f64db586bddd24e0058c76ae00899ca939b5f2f3182b7c818c83abbb6ba56052961

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