70b109fee37c587d815cf848a7b30bfefe77b8e0d7b485183c9782e3c3fc721c

Analysis

max time kernel
121s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10-05-2024 10:39

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General

Target

New folder/ac337d0e2c1d6f6a1132285a.au3
Size

149KB
MD5

3b340bfe4c0707bc961338f81b77ae2d
SHA1

93f5ba8d5f5c242f7e971d5fa7881df6c9150046
SHA256

ac337d0e2c1d6f6a1132285a409a49a0003a2e058cf84063fd899e5d40103b83
SHA512

9199c027389252fcab8d236162bfeb74519df0fbbd4603775f7a6a0e67cf061f35fd57287604797521cdcdb473f2fe93f7736c0459ea2909fbf088045942f1cd
SSDEEP

1536:1F+W3GYbAx7LfIji3tIdprUZIpJkmRz+zDgA1s:SXzEiODU29D

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-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\au3_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\au3_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.au3	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.au3\ = "au3_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\au3_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\au3_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\au3_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\au3_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

2716 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2716 AcroRd32.exe
2716 AcroRd32.exe

pid	process
2716	AcroRd32.exe

pid	process
2716	AcroRd32.exe
2716	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2136 wrote to memory of 2596	2136	cmd.exe	rundll32.exe
PID 2136 wrote to memory of 2596	2136	cmd.exe	rundll32.exe
PID 2136 wrote to memory of 2596	2136	cmd.exe	rundll32.exe
PID 2596 wrote to memory of 2716	2596	rundll32.exe	AcroRd32.exe
PID 2596 wrote to memory of 2716	2596	rundll32.exe	AcroRd32.exe
PID 2596 wrote to memory of 2716	2596	rundll32.exe	AcroRd32.exe
PID 2596 wrote to memory of 2716	2596	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\New folder\ac337d0e2c1d6f6a1132285a.au3"
1⤵
- Suspicious use of WriteProcessMemory
PID:2136

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\New folder\ac337d0e2c1d6f6a1132285a.au3
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2596

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\New folder\ac337d0e2c1d6f6a1132285a.au3"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2716

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
8b4f04e796ddfd19e5b25b5ad879153c

SHA1
6e03a0c4f0f2890cd28788af79cf1ccedaa14112

SHA256
ae4963ab74b0a7cb1a1f8cb50a79ce5bd0be18ae4dd409c668462e031090463f

SHA512
3688f902123f21cbc448a6f954af0f8bc7dc13efa7f7b815668378a4bc0b13eb849273423fed8c0bc965f74d2aabe1fe6b9f8600e319864e17492a16e9f0cdef

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