40dca8cc9156a448082670599d1779339738028a616b3c1047178cf0a0baa6e5

Analysis

max time kernel
840s
max time network
842s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
23/02/2024, 12:36

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General

Target

doc/src/Develop.rst
Size

105KB
MD5

e56d2562c2a861888c93647adc3c868e
SHA1

7a1568cc9b3121283cfd122efb281d1ce5855aa9
SHA256

9a926548948c7aadd6cf723b757eaabbf0a9e43039d548b2b25cf3d3535e03f5
SHA512

64a7e06826d7abc71a101b98a74f44533a9ed509789ecc8a9776276c4ae98bdee95e4191b1911b40a7ea174746a869d2c8392c6c132700029ac43742d923118b
SSDEEP

3072:zdIJ44afjeTuqD0bJ8OZjB36Mc9wYAQWLqHw:z+J44afjeTuqD0x36gQWx

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
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\rst_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.rst	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\rst_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\rst_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\rst_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.rst\ = "rst_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\rst_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\rst_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
2388	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2388	AcroRd32.exe
2388	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2908 wrote to memory of 2648	2908	cmd.exe	29
PID 2908 wrote to memory of 2648	2908	cmd.exe	29
PID 2908 wrote to memory of 2648	2908	cmd.exe	29
PID 2648 wrote to memory of 2388	2648	rundll32.exe	30
PID 2648 wrote to memory of 2388	2648	rundll32.exe	30
PID 2648 wrote to memory of 2388	2648	rundll32.exe	30
PID 2648 wrote to memory of 2388	2648	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\doc\src\Develop.rst
1⤵
- Suspicious use of WriteProcessMemory
PID:2908
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\doc\src\Develop.rst
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2648
- - 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\doc\src\Develop.rst"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2388

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
d56c20163860a2c93e1654cc85b9b180

SHA1
5b89f23e56aa90a4a2263e9257e77032db6a3971

SHA256
f92422548164914377ab0f482148590542e368ffb7d403ec524984412e2a0a81

SHA512
7b963df241590a0602eeed3ca7f7783ed34164333359c4ff5ada02a05b0723701028636acb97952ae2330b6fd5b6806d6af2f380f635ebe7d1f0aa973ec2e7e6

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