aaa87b8aba133ee0db3b44e60ddc93e3c5bd62280439a2c3028bffe0a0f7ced6

Analysis

max time kernel
150s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
15/06/2023, 14:53

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General

Target

classes/javax/transaction/xa/XAResource.class
Size

1KB
MD5

c202413e0488d04febf41a27d7c03d7e
SHA1

5541dcfb68207a0e4d7ba15bf3041168d720c5bf
SHA256

136e8ff22db14721381abae8a840203bca732d95e76214749b9959bbbb1be54a
SHA512

269964e8e63f52a9a094def51942ba3545a97af43d2e1c4ae4f5830d73e50d89709b7201b11dc1350689683a4fd65d9f16633181222b39d21eddbcf326dc71ca

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 10 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\class_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\.class	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\.class\ = "class_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\class_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\class_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\class_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\class_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\class_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
1876	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1876	AcroRd32.exe
1876	AcroRd32.exe
1876	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1264 wrote to memory of 520	1264	cmd.exe	29
PID 1264 wrote to memory of 520	1264	cmd.exe	29
PID 1264 wrote to memory of 520	1264	cmd.exe	29
PID 520 wrote to memory of 1876	520	rundll32.exe	30
PID 520 wrote to memory of 1876	520	rundll32.exe	30
PID 520 wrote to memory of 1876	520	rundll32.exe	30
PID 520 wrote to memory of 1876	520	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\classes\javax\transaction\xa\XAResource.class
1⤵
- Suspicious use of WriteProcessMemory
PID:1264
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\classes\javax\transaction\xa\XAResource.class
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:520
- - 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\classes\javax\transaction\xa\XAResource.class"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:1876

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

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Downloads

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

Filesize
3KB

MD5
decad4f75897f96abe654a759962128c

SHA1
bd19a0ebcfda274c676f0ebb2cf22874268a9cbf

SHA256
db1d6b708f61a4e4e5eea7f46140649d67059b2304f186628fa064dfe496e077

SHA512
43b15fb75cb3c247ae37051dfc653785daad3d50dadfa73750aa5103ecd86a4ded5238676f9c38c6e622dda9d545fc74ca0ca27f1f390d4c3e125040a126ba8e

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