594fc6920eaa06364ff7ffeb87be15ec81882030749759a872a6b9f17da75670

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21-05-2024 14:43

240521-r3mvhshd83 3

21-05-2024 14:40

21-05-2024 14:37

21-05-2024 14:34

21-05-2024 14:31

Analysis

max time kernel
18s
max time network
21s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
21-05-2024 14:34

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General

Target

Some Problems/Copy of clientlib.js(21).download
Size

115B
MD5

252ca0c424e895b56dc613983214476f
SHA1

637865e82e18e78cdace900a2a7dfa15dec560ad
SHA256

1da9f6f486da6b5f399d74322302e572c844f940b30fd9a04249e7cb12852a0c
SHA512

72dc16289cfa853ab4084a5e0c44bef5cb0af6c2dc7ab4a1f10f42b240e6022d7a13e46530de74c58c353ee6da0d8db07acd2a17219ded4c585ee2ebf1d95cc1

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-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\download_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\download_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.download	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.download\ = "download_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\download_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\download_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\download_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\download_auto_file\shell\Read	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2760 AcroRd32.exe
2760 AcroRd32.exe

pid	process
2760	AcroRd32.exe
2760	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2228 wrote to memory of 2716	2228	cmd.exe	rundll32.exe
PID 2228 wrote to memory of 2716	2228	cmd.exe	rundll32.exe
PID 2228 wrote to memory of 2716	2228	cmd.exe	rundll32.exe
PID 2716 wrote to memory of 2760	2716	rundll32.exe	AcroRd32.exe
PID 2716 wrote to memory of 2760	2716	rundll32.exe	AcroRd32.exe
PID 2716 wrote to memory of 2760	2716	rundll32.exe	AcroRd32.exe
PID 2716 wrote to memory of 2760	2716	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\Some Problems\Copy of clientlib.js(21).download"
1⤵
- Suspicious use of WriteProcessMemory
PID:2228

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Some Problems\Copy of clientlib.js(21).download
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2716

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\Some Problems\Copy of clientlib.js(21).download"
3⤵
- Suspicious use of SetWindowsHookEx
PID:2760

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
a7e100b61f639ef9f8bf2ba144dadc1b

SHA1
0373b9d70af64d6dc6f6ab94ada848ca1b4df21a

SHA256
616b388b7dc759993fd339def058453f601e3f61dea97851157dd43be99bff01

SHA512
f505465b60a153155d8bc6c7e5138bf8059e68e75e8c4ff4ecf34e85152eee3b2940f39bb959b166b2aa862221fe952c0365475ef75b7350b931140f000320b5

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