37a5aed8e8c4d56a9bffed1975aabde0f7042cbc5ee3ec466eff3644847d2de2

Analysis

max time kernel
117s
max time network
119s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
17-02-2024 21:33

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General

Target

Loader.pyc
Size

27KB
MD5

b177d0351ac47689722ed71cca260948
SHA1

560d0749d713fdef65c6b92ec29f4e9277c4066f
SHA256

16ba144ab4bec59328aae25da6baa5daaf485e1f339607ffb6edc47671c72fa8
SHA512

89f7710a577746d257f03be938bf7e867106f98fff3135dd359dfa3145626e9af0a9906cc5110f0c30f3fa10621e33ffdcad082b7934cfd115a6ce3ac8ffce3b
SSDEEP

768:ktBfOjDXCzzm9U4VwbgtlI560vrGSj8jdGHOaTFp4/n2:kt4XiP4Bl4vrNj8jA/34/2

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-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\pyc_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_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-1-5-21-3818056530-936619650-3554021955-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2728	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2728	AcroRd32.exe
2728	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3048 wrote to memory of 2464	3048	cmd.exe	29
PID 3048 wrote to memory of 2464	3048	cmd.exe	29
PID 3048 wrote to memory of 2464	3048	cmd.exe	29
PID 2464 wrote to memory of 2728	2464	rundll32.exe	30
PID 2464 wrote to memory of 2728	2464	rundll32.exe	30
PID 2464 wrote to memory of 2728	2464	rundll32.exe	30
PID 2464 wrote to memory of 2728	2464	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Loader.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:3048
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Loader.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2464
- - 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.pyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2728

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
c2202090d5432a84bc567981bf32eb02

SHA1
ea6960d1cd1e20f6d04cbc9e711f25c5abdc86bf

SHA256
400fce9b8cc7662ee686b713755db21996b09effac7658ad8560e47f788401ec

SHA512
627c8b3c8b267c6c24b7a07f6393e564e848c2c9ef0744f6ed8565e3e94b5d12d7e90cb3128a3987fc81349f44d5feaf9884c866d3d31b4be54f3af67d3933e7

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