a7d2ea641dbc8e50000e6b42c9cca200fa25d5e37ddd1857eb489795ab5564ee

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
27-06-2024 13:35

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General

Target

Absorbable.sul
Size

816KB
MD5

6593de223564535ce11d13bfb74348ca
SHA1

5d85af6a3877470118ddac318a131c7eb2498bb2
SHA256

a57cb464f48b61e87ed20832f2d6eae93c2669bb13850cb6186248e9b597364c
SHA512

f0b85a3f75268cb4b08ff7fc18a631acc4c1d9e8aca804b9ed8dfc186789bf930467f1c2ae2dcc769ac200557d4ff01abda80ea17ce622488d56c264d2941e3f
SSDEEP

768:ONjfRwbxYsn1KxrM/MRos6Yumut+ud9j4f7lzZnMkviwCdR/S9krIXLtZkCoVf/1:Q/5y

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-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\sul_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\.sul	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\.sul\ = "sul_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\sul_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\sul_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\sul_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\sul_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\sul_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	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 2852 wrote to memory of 2632	2852	cmd.exe	rundll32.exe
PID 2852 wrote to memory of 2632	2852	cmd.exe	rundll32.exe
PID 2852 wrote to memory of 2632	2852	cmd.exe	rundll32.exe
PID 2632 wrote to memory of 2684	2632	rundll32.exe	AcroRd32.exe
PID 2632 wrote to memory of 2684	2632	rundll32.exe	AcroRd32.exe
PID 2632 wrote to memory of 2684	2632	rundll32.exe	AcroRd32.exe
PID 2632 wrote to memory of 2684	2632	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Absorbable.sul
1⤵
- Suspicious use of WriteProcessMemory
PID:2852

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Absorbable.sul
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2632

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\Absorbable.sul"
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
9be727cb542dcf367fc4be47b71cdfc0

SHA1
222a95e556ee981dde89fd7883f4107abe4b75f9

SHA256
2986134ab12f7f57c61da0f3be2bf443e3d10990766a83905af43c893c293704

SHA512
4723c231af85a44b85b9ba2527ee39b00e033a4df0985a7a550391f384127767ad0622348c70d77ae9fe200a8c32d8306667931a78bd5328c6e46f6d25ce8d3d

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