aaa87b8aba133ee0db3b44e60ddc93e3c5bd62280439a2c3028bffe0a0f7ced6

Analysis

max time kernel
150s
max time network
30s
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/Xid.class
Size

292B
MD5

3dd6b953d8bcbf2f324e6b8417eaee9c
SHA1

606eeb43f79156ee13f5dfa3dddbdc4d6ea48693
SHA256

1b0ed65ed9bbb7b153eb3450148518f2c7612b409a94a07d9dac20ff3d4ff481
SHA512

d65ddeafc5f6df39d29b06679055923b1ab1814d46560a0c42f3278b9d8a5eb9a3e98666966f4aeb4bf3305ee9d9f71f5666dfdf51232081189588618706d54e

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-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\class_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\.class\ = "class_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\class_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\class_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\class_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\class_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\.class	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\class_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1868	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1868	AcroRd32.exe
1868	AcroRd32.exe
1868	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2044 wrote to memory of 552	2044	cmd.exe	29
PID 2044 wrote to memory of 552	2044	cmd.exe	29
PID 2044 wrote to memory of 552	2044	cmd.exe	29
PID 552 wrote to memory of 1868	552	rundll32.exe	30
PID 552 wrote to memory of 1868	552	rundll32.exe	30
PID 552 wrote to memory of 1868	552	rundll32.exe	30
PID 552 wrote to memory of 1868	552	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\classes\javax\transaction\xa\Xid.class
1⤵
- Suspicious use of WriteProcessMemory
PID:2044
- 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\Xid.class
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:552
- - 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\Xid.class"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:1868

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
278010d9589fb98c86b612dd8d7891f1

SHA1
d767e7979fd1f9112d1c3dec0fa2a30d7829c2c8

SHA256
2654a5409cc9b7318706bf5e67a67379d431c2f9bce7e7e4a39a79c067a8a906

SHA512
e62b6986b1fd96a3aa2e4bad9294fcc009949467ed9e3fc655e13a3b1c2c8a5e01772a34a0fbf781386b69e72a40f165dfb07617130c66ddaeaef73501a70b0e

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