0432dca5d3f8623103c1e112f052a4ed7990d550b029c445858ffc94a9abe65b

Resubmissions

15-04-2024 17:37

240415-v66nksed8w 7

15-04-2024 17:34

240415-v5ll1sed3z 7

15-04-2024 17:30

240415-v3fmzsca66 3

15-04-2024 17:27

240415-v1vdcseb8w 7

Analysis

max time kernel
18s
max time network
20s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
15-04-2024 17:37

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General

Target

WindowsPowerShell/v1.0/Modules/VpnClient/PS_VpnConnection_v1.0.0.cdxml
Size

28KB
MD5

5316a9a9dd734aad904b7b53f3a5f7a2
SHA1

370ddd90e10b89e8149527c01859e79e4f079e02
SHA256

784191dcc63f1faacb881a14e3e6c3b2fd95871d2ad91543c9e590650b1866ad
SHA512

3ccd08c42cbddc67cb17c61304c30e64b3e0efa165fb1bbc1774dbb4ddb9172dc219f4e03b4b552c51425ee1dd91324311d7a0e50789fb1f6f38120d135c27d4
SSDEEP

384:SDV1DhuD5V1DODLDtD2DbDGDtD5iJD5pDNCDV1DODLD2DtDGDODaD3XDZHDtD2Dc:wsCQAbw

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
Set value (str)	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\.cdxml\ = "cdxml_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\cdxml_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\cdxml_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\cdxml_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\cdxml_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\cdxml_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\cdxml_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\.cdxml	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2536	AcroRd32.exe
2536	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2260 wrote to memory of 2548	2260	cmd.exe	29
PID 2260 wrote to memory of 2548	2260	cmd.exe	29
PID 2260 wrote to memory of 2548	2260	cmd.exe	29
PID 2548 wrote to memory of 2536	2548	rundll32.exe	30
PID 2548 wrote to memory of 2536	2548	rundll32.exe	30
PID 2548 wrote to memory of 2536	2548	rundll32.exe	30
PID 2548 wrote to memory of 2536	2548	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\WindowsPowerShell\v1.0\Modules\VpnClient\PS_VpnConnection_v1.0.0.cdxml
1⤵
- Suspicious use of WriteProcessMemory
PID:2260
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\WindowsPowerShell\v1.0\Modules\VpnClient\PS_VpnConnection_v1.0.0.cdxml
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2548
- - 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\WindowsPowerShell\v1.0\Modules\VpnClient\PS_VpnConnection_v1.0.0.cdxml"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2536

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
a8c04dab4bf4eea22341a32fff92030c

SHA1
fcd706fc8476ecceffbf16c0043a9ae42bba8182

SHA256
f699316f0ed0ba6ccbd9adeb9063f5efe196e674867a858b2c7faad5edeec38d

SHA512
51c20e28d087aec805f7d761f81d43f519205470e04c5bcbec175e15c2b1b1409b0004ca5ba744043dbf471aad0fae0978beaa6bb36e5505d5c01c91b3bd30b1

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