8fa72d02675d6c3da7374ad0e00b5fe076c0ac84bde0d6d1b2be5824beaee689

Analysis

max time kernel
150s
max time network
125s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
08-10-2023 19:24

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General

Target

main.pyc
Size

14KB
MD5

03700bc4b25e25e84a724382ef8eedf6
SHA1

66a3f6b58c4de2b70dbf8b8aaffdb77594211051
SHA256

7f45707138b84bcf5826bb040484ea120d8230e6e6a387d9fcaada9b1d4e60bd
SHA512

b78ca7bbdf2629dc714991b807c110e040bc893efff655ff3a4bb6a17a17143875a3802bc2b945d05a4bb7b9c298becf030834dc26fbd19ffd113c35d92a432b
SSDEEP

384:zqry3kQlrLiJld/r8VE6wC7ETeJaV8KWtQXs:zqra+l5h85Y3WQXs

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-1-5-21-3513876443-2771975297-1923446376-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000_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-1-5-21-3513876443-2771975297-1923446376-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000_CLASSES\pyc_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3513876443-2771975297-1923446376-1000_CLASSES\pyc_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2636	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2636	AcroRd32.exe
2636	AcroRd32.exe
2636	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2256 wrote to memory of 2588	2256	cmd.exe	29
PID 2256 wrote to memory of 2588	2256	cmd.exe	29
PID 2256 wrote to memory of 2588	2256	cmd.exe	29
PID 2588 wrote to memory of 2636	2588	rundll32.exe	30
PID 2588 wrote to memory of 2636	2588	rundll32.exe	30
PID 2588 wrote to memory of 2636	2588	rundll32.exe	30
PID 2588 wrote to memory of 2636	2588	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\main.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2256
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\main.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2588
- - 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\main.pyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2636

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
e1ac616304799cc89175c16c47226d07

SHA1
4394feadd7d9b43584c219c33fdba296c6e554d0

SHA256
bd498f113d7a23461585fcf56c7d4ad115bcf3b2313b600b326b26d10759abb1

SHA512
51488741b58e3f9756ce7e45ca2b2e18c662d9e56b37c074d37a0f0cdf866b744796da53840299b7e280a35bb16f3fa4f58d36c20266c7f50b35d8f3b1e1410d

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