b3c5e464e43d7db2432f3e28de75bd0eee8fa7a2b7b6fef7134e7115d6681be3

Analysis

max time kernel
122s
max time network
124s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
25-03-2024 14:35

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General

Target

$RECYCLE.BIN/$ITQTF65.vhd
Size

52B
MD5

5c4658d0c26e73e822805cd541661a77
SHA1

45d2b460c1b8395401fd60b26b8f398f5cfbcbf5
SHA256

8f3b7422617b49f01037d7f18aeeec7892d95a804cc220228ded61e3fbb7bb30
SHA512

d8e455d594bf16b279f082aefccb939440619a0da8339534873dfbbddd3cc2880e2f7c6b2fdf9999ee48455b4c139750403ed9b8c2e6c82da0bdeb522b196002

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

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\vhd_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.vhd\ = "vhd_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.vhd	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\vhd_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\vhd_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\vhd_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\vhd_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\vhd_auto_file\	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2684 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2684 AcroRd32.exe
2684 AcroRd32.exe

pid	process
2684	AcroRd32.exe

pid	process
2684	AcroRd32.exe
2684	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2972 wrote to memory of 2504	2972	cmd.exe	rundll32.exe
PID 2972 wrote to memory of 2504	2972	cmd.exe	rundll32.exe
PID 2972 wrote to memory of 2504	2972	cmd.exe	rundll32.exe
PID 2504 wrote to memory of 2684	2504	rundll32.exe	AcroRd32.exe
PID 2504 wrote to memory of 2684	2504	rundll32.exe	AcroRd32.exe
PID 2504 wrote to memory of 2684	2504	rundll32.exe	AcroRd32.exe
PID 2504 wrote to memory of 2684	2504	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\$RECYCLE.BIN\$ITQTF65.vhd
1⤵
- Suspicious use of WriteProcessMemory
PID:2972

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\$RECYCLE.BIN\$ITQTF65.vhd
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2504

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\$RECYCLE.BIN\$ITQTF65.vhd"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2684

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Filesize
3KB

MD5
138ff0573be3e545e5ac100689fa2c0e

SHA1
d3138323d36a246106a8cd838744b10ca3033944

SHA256
311003bf27d5d0ec62c594a9a5e1ddcd3a6035f7968eb9d27a9fa7b1a3893d11

SHA512
9983b32c7d5cb52b64cb2fe90505414da2d6bbd01a0b93229d16eefab7ada617ef974266fe19a4c23b1812dff000606d0fb5aed41032142b2a6842470c11c273

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