dd9a95436bbce09e0049ab8a8c59069ae43b4b4e400f41ab8cad933b2cde69fd

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
06/03/2024, 15:31 UTC

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

reg_backup.pyc
Size

6KB
MD5

10fdb4b38c53a4831819705aab9f4c2e
SHA1

211afce3552e094054b4a2ceaa4e54bc4babb93e
SHA256

0209a0220ed750582b41b74187203a501c333f2bbc797d81976bb368a43597aa
SHA512

4d5b6204f09c01e88ed47c20a1fb0da4dbee1d1be5112417234735eafaa534d874f3a9efb1174d37cb6c80cd483406c16575400801a1f540d126680fa8ce427d
SSDEEP

96:q+CNsheuyFqytMAdchmmnf53CGKzGA6NL+8qGtQsGR7ds2WrReMFYQVGA:VCaheltMZm85CW+8h5Cs2IEMFYgF

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-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pyc_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pyc_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pyc_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pyc_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pyc_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.pyc	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.pyc\ = "pyc_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pyc_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2420	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2420	AcroRd32.exe
2420	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2188 wrote to memory of 2536	2188	cmd.exe	29
PID 2188 wrote to memory of 2536	2188	cmd.exe	29
PID 2188 wrote to memory of 2536	2188	cmd.exe	29
PID 2536 wrote to memory of 2420	2536	rundll32.exe	30
PID 2536 wrote to memory of 2420	2536	rundll32.exe	30
PID 2536 wrote to memory of 2420	2536	rundll32.exe	30
PID 2536 wrote to memory of 2420	2536	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\reg_backup.pyc
1⤵
- Suspicious use of WriteProcessMemory
PID:2188
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\reg_backup.pyc
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2536
- - 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\reg_backup.pyc"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2420

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
f7bb176ddf1b31b88156ba749dd30986

SHA1
8500a9c00201dbb7fb11fdededa9c6e3a9ff3d5e

SHA256
50361e44436b137cd43ca919858028d42a20a399b70315841578436df971195e

SHA512
ca4b21166ef72439975832588d1612366561d480076c95e86c31d7f4876e7199a720f92b82f59b47ec07517c6c0e503f8e06a6b13a875369111bcacfa36bbac4

Download Submit