dbc153ff08766e9b203cbb9d49cffc811cef981bb477e63189c681babc995e44

Analysis

max time kernel
158s
max time network
59s
platform
windows7_x64
resource
win7-20230824-en
resource tags

arch:x64arch:x86image:win7-20230824-enlocale:en-usos:windows7-x64system
submitted
30/08/2023, 16:42

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General

Target

exe.win-amd64-3.11/lib/win32com/shell/shellcon.pyc
Size

53KB
MD5

85ffc7a31e54223fc809715bfe457da1
SHA1

1b2f041d84092e3bbf66ad9472126936def398a1
SHA256

8b20a850e4d4d5b310da9e71a26157b69288affa1c39524a00e528f5ca3d267f
SHA512

f8b7f014a875722dd306e8d833fcddff6a2246abc665d0b212df95c3c9d4640627213154667d813d9d4be605ba7091e6a5f89a9923b30014093f5b45e8b87b88
SSDEEP

1536:JnjS0Hsz1RJIoZxAS89RHPSwuEexSOLHz:c0sLTZxAS89RHPdaj

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-1-5-21-1528014236-771305907-3973026625-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1528014236-771305907-3973026625-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1528014236-771305907-3973026625-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1528014236-771305907-3973026625-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1528014236-771305907-3973026625-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1528014236-771305907-3973026625-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1528014236-771305907-3973026625-1000_CLASSES\pyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1528014236-771305907-3973026625-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1528014236-771305907-3973026625-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2416	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2416	AcroRd32.exe
2416	AcroRd32.exe
2416	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1428 wrote to memory of 2756	1428	cmd.exe	30
PID 1428 wrote to memory of 2756	1428	cmd.exe	30
PID 1428 wrote to memory of 2756	1428	cmd.exe	30
PID 2756 wrote to memory of 2416	2756	rundll32.exe	31
PID 2756 wrote to memory of 2416	2756	rundll32.exe	31
PID 2756 wrote to memory of 2416	2756	rundll32.exe	31
PID 2756 wrote to memory of 2416	2756	rundll32.exe	31

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\exe.win-amd64-3.11\lib\win32com\shell\shellcon.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:1428
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\exe.win-amd64-3.11\lib\win32com\shell\shellcon.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2756
- - 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\exe.win-amd64-3.11\lib\win32com\shell\shellcon.pyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2416

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
f1bfb433a3ead37a0a993ee2ca4ce86b

SHA1
5cc15381bbc78a4aac7781a7156844c546dd4339

SHA256
9bd484edd8dfe82086b64f6741b620636d839523a6c05635fdab3ee4569e8b6b

SHA512
96e530c76c33f966a39994b469aca426d5f82ee77b4ac9d27db20a3e80ac9530f83982bfb2d27064ad14f6e29483b401751649225e4a8a6a0b97f4642e3376a2

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