b17cb39f3d9da2e11a0f098e075fbd104327cbcf2143ccee63fb1510810a9d09

Analysis

max time kernel
118s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11-09-2024 19:12

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General

Target

loader-o.pyc
Size

61KB
MD5

4da1c2751b1ab14235592b98665387e3
SHA1

e80b3e2288b4a56bb16613297c0145375769d023
SHA256

1c492f435f72342a73511d72a4ec41cb314789d46cb0a4a9e4adc7ddb5883c97
SHA512

a0fccc1d2f66c90234156c6c6945301ff7e96a863a83a42d64eacf5b3338d8e4f8f8996728024c84018ef001ec7b17f5b4106cf8fde096fcad80be03d2c300e0
SSDEEP

768:lU5RsdBJeuqUIx4Lc11n/ijkGIVY48maOFJfuuc9oLmgj3nHvVZ0FC:lU5RCJeupLc1JKiG4/a2J2uc9ojjXvf

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-1-5-21-457978338-2990298471-2379561640-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000_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-1-5-21-457978338-2990298471-2379561640-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2980	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2980	AcroRd32.exe
2980	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2808 wrote to memory of 2864	2808	cmd.exe	31
PID 2808 wrote to memory of 2864	2808	cmd.exe	31
PID 2808 wrote to memory of 2864	2808	cmd.exe	31
PID 2864 wrote to memory of 2980	2864	rundll32.exe	32
PID 2864 wrote to memory of 2980	2864	rundll32.exe	32
PID 2864 wrote to memory of 2980	2864	rundll32.exe	32
PID 2864 wrote to memory of 2980	2864	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:2808
- 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:2864
- - 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:2980

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
a56cc6fd162e197bd883817075ba12d7

SHA1
51efe91ab96676345e070a02086863cb61730330

SHA256
985f03afec2cda5213f93d61f031748d7b547a6d8c2bb1c55233986943175a85

SHA512
d6ef8cdd3b6362154d27580485ee189210129984ad9621fa749498b85a73fa4e7e9803df184cca87a8689330445b09c930454cdbd78cae5f80cc8e5c4b556bc6

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