26d89e1ea2b7a3f46ff269da5d9b93f405a3de68eb87c9df97e67a61b59d20b5

Resubmissions

14-01-2024 22:16

240114-16txnsebh6 10

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
14-01-2024 22:16

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General

Target

Creal.pyc
Size

121KB
MD5

049c4a263fbd030d43153d8488b364d6
SHA1

dffa7ef4adf32bc01a35c3891c48adea93acfc98
SHA256

29cd726e3b115710db287a590a1abc0b7a8ac470406913e24f302098a1fc50ba
SHA512

00a2c575e04481d78329764b0e1b34655c94bdcdeffb8cf9ef935a05314116987e6a71f1a7e6af007ad676078b7a54c995ac36841a5bb7c737b78a1b69df5258
SSDEEP

1536:MrXaqMamq3YwmQyLCipnml5ZOhLQmGwCo38jswmUcUlGks1HnR1o/agcIMxqHtEq:M77MapmJpnDSoUoREcI1d

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-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\pyc_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\.pyc	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_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-1-5-21-3427588347-1492276948-3422228430-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2808	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2808	AcroRd32.exe
2808	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2184 wrote to memory of 2668	2184	cmd.exe	29
PID 2184 wrote to memory of 2668	2184	cmd.exe	29
PID 2184 wrote to memory of 2668	2184	cmd.exe	29
PID 2668 wrote to memory of 2808	2668	rundll32.exe	30
PID 2668 wrote to memory of 2808	2668	rundll32.exe	30
PID 2668 wrote to memory of 2808	2668	rundll32.exe	30
PID 2668 wrote to memory of 2808	2668	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Creal.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2184
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Creal.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2668
- - 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\Creal.pyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2808

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
05b310a6439ad61bd5089b40ad5e9436

SHA1
9f7c00dbe44297ec16ae4c674151ab0d0c8729d6

SHA256
0018f48b7c6e52bc827490e54770a339ff591d36d2378ce39314230321ede538

SHA512
a62649e9deebc437a569214296c16d2d4aad4d3ff88744d2b56fd6fb8614567de5fa2cedf8064c6e614fe3793a4d164e006bded2cfe936c952b32dbe27ca3853

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