1d5ed30967a42295031408d97ad6ae205fc9533d4448d0a40dc1c4d3fb4dc5ed

Analysis

max time kernel
122s
max time network
124s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
23/07/2024, 16:30

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General

Target

loader-o.pyc
Size

383KB
MD5

a23f9203f7b4e83a8aa53eb858f2239d
SHA1

ea0bae7700f09126981cd001a4dfdbd0f06448fa
SHA256

5bdc2ea950f649756bc88bf9cdf9a6752bda63504d41e699b17df9beb3b18733
SHA512

215fbfeb91de4636475ecedd3b84f960dd2940c63015c6a7c0967f1584bb71518bef98851d33defa10ebd90eecd511dbf67dd92833a3bec53e60104e47723805
SSDEEP

3072:aU8h31xPc3DRzznbNfKFIcgZeF2rWaEGkwO0:Pa1xPc3lzzbNyr0eF2rvEB6

Score

3^/10

discovery

Malware Config

Signatures

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2836	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2836	AcroRd32.exe
2836	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3024 wrote to memory of 2888	3024	cmd.exe	31
PID 3024 wrote to memory of 2888	3024	cmd.exe	31
PID 3024 wrote to memory of 2888	3024	cmd.exe	31
PID 2888 wrote to memory of 2836	2888	rundll32.exe	32
PID 2888 wrote to memory of 2836	2888	rundll32.exe	32
PID 2888 wrote to memory of 2836	2888	rundll32.exe	32
PID 2888 wrote to memory of 2836	2888	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\loader-o.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:3024
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\loader-o.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2888
- - 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\loader-o.pyc"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2836

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
3KB

MD5
7ebe9a5aecfdbe415f87d3417d6a0188

SHA1
5293e06ada84ccaf0c51908fb1ac466b93624e4d

SHA256
097ca7ef537b83def0d63a57f978e2ae3b4163ed4135b963ad82ddba01541fbd

SHA512
e92a0520684525446ab031045468b3de981cf33d315b0dcd8401fff5aec2e332d47248d4a7db0bfd76c467838b2f91179e5b63e586822a6644399b43b3a5cf90

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