2a7f77dd390052d5407e2b494b173a9fc6b671ab757d25b79ed23352361dce5c

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
25-01-2024 17:45

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General

Target

is-PF2KB.tmp
Size

47B
MD5

3e5337e7aae41797043107c0a05980c7
SHA1

c3b87f4a1d0b7a81c08b54aa19dfcd34db210ae2
SHA256

2a7f77dd390052d5407e2b494b173a9fc6b671ab757d25b79ed23352361dce5c
SHA512

23ca07123e45876869ea50dd5b22104d2934a6ad4dfeb3064c2e604536dd0df2c29076b70c1f475f015981654eb81d70c10a96cf678a4cc6913fd48eff8f20d5

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

Processes:

rundll32.exe

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\tmp_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\tmp_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\.tmp	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.tmp\ = "tmp_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\tmp_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\tmp_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\tmp_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\tmp_auto_file	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid	Process
2716	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid	Process
2716	AcroRd32.exe
2716	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	Process	procid_target
PID 2736 wrote to memory of 2680	2736	cmd.exe	29
PID 2736 wrote to memory of 2680	2736	cmd.exe	29
PID 2736 wrote to memory of 2680	2736	cmd.exe	29
PID 2680 wrote to memory of 2716	2680	rundll32.exe	30
PID 2680 wrote to memory of 2716	2680	rundll32.exe	30
PID 2680 wrote to memory of 2716	2680	rundll32.exe	30
PID 2680 wrote to memory of 2716	2680	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\is-PF2KB.tmp
1⤵
- Suspicious use of WriteProcessMemory
PID:2736
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\is-PF2KB.tmp
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2680
- - 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\is-PF2KB.tmp"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2716

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
6ad1869c304c026f69b5dd70138fb1e7

SHA1
1aa65c3639bef41594363ff9c341304a5efb9ad0

SHA256
d86babb43a597c91f09ca2948d94c2bd708832559c58b1dc15a9238466de2207

SHA512
e381e51dba6c279f0bfa3f4fe81e101069ce650284bfdecf8c4eaf659938be3f4a8eb8dfa91e123150c7fc12767df13f6aca59e17ea46008cac82a45c44314b4

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