8bc2a80321c01b51ff4896895730ccda0b34f2a1cacc2bba849b4b208ff197d8

Resubmissions

06-02-2023 11:08

230206-m8jmtsgh5w 10

06-02-2023 11:04

230206-m6j6ksgh4w 10

Analysis

max time kernel
569s
max time network
419s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
06-02-2023 11:08

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Order to Purchase DOC_PO.20051011_060223.ace
Size

401KB
MD5

3de0367d8fd512ec8b4c62e67c6700c0
SHA1

39aa9a0ab59f3f93c24aa9c6e3a2b7200271a831
SHA256

8bc2a80321c01b51ff4896895730ccda0b34f2a1cacc2bba849b4b208ff197d8
SHA512

cfc2a5a692b445e7befa6b295179b416f2ca99b4e44235d359298f7acb418d47a907b037d3e5814da223d083af479ed56dd4209956c00a377961f39972544d0d
SSDEEP

12288:YaO/hw4kpKI/6MVAgJTezEyRm0slq+/MP1jcv23:YFwXpV/VVAgJWRshUPhe23

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 10 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\ace_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\.ace\ = "ace_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\ace_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\ace_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\.ace	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\ace_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\ace_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\ace_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
948	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
948	AcroRd32.exe
948	AcroRd32.exe
948	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 616 wrote to memory of 1472	616	cmd.exe	29
PID 616 wrote to memory of 1472	616	cmd.exe	29
PID 616 wrote to memory of 1472	616	cmd.exe	29
PID 1472 wrote to memory of 948	1472	rundll32.exe	30
PID 1472 wrote to memory of 948	1472	rundll32.exe	30
PID 1472 wrote to memory of 948	1472	rundll32.exe	30
PID 1472 wrote to memory of 948	1472	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\Order to Purchase DOC_PO.20051011_060223.ace"
1⤵
- Suspicious use of WriteProcessMemory
PID:616
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Order to Purchase DOC_PO.20051011_060223.ace
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1472
- - 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\Order to Purchase DOC_PO.20051011_060223.ace"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:948

Network

MITRE ATT&CK Enterprise v6

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

memory/616-54-0x000007FEFC091000-0x000007FEFC093000-memory.dmp

Filesize
8KB

Download
memory/948-81-0x0000000000000000-mapping.dmp

Download
memory/948-82-0x0000000075931000-0x0000000075933000-memory.dmp

Filesize
8KB

Download
memory/1472-76-0x0000000000000000-mapping.dmp

Download