1b475e95186ce2a8843516be389b66a6c53c6b77bdac33ffcf5d00af133e7570

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 07:38

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General

Target

config.toml
Size

780B
MD5

f5ec88df425e13717288aefb6f6bdbf1
SHA1

1ede83c1df8a9f54d2f66dabd1ccca0b34b484bf
SHA256

b5c1ff30db8d16ab078be8417b129656f85b1752abdd5f8a10ee3cda40ea68ef
SHA512

900842b340d46e2294157ad893473d9ac40b63599a550086c1040d6574f43c89188db97d188ce0c16eaa93bae6e132d1ad3b50e9ebf07e4f06d0c0f009ff1ee0

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\.toml	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.toml\ = "toml_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\toml_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\toml_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\toml_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\toml_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\toml_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\toml_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2524 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2524 AcroRd32.exe
2524 AcroRd32.exe

pid	process
2524	AcroRd32.exe

pid	process
2524	AcroRd32.exe
2524	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 3068 wrote to memory of 2680	3068	cmd.exe	rundll32.exe
PID 3068 wrote to memory of 2680	3068	cmd.exe	rundll32.exe
PID 3068 wrote to memory of 2680	3068	cmd.exe	rundll32.exe
PID 2680 wrote to memory of 2524	2680	rundll32.exe	AcroRd32.exe
PID 2680 wrote to memory of 2524	2680	rundll32.exe	AcroRd32.exe
PID 2680 wrote to memory of 2524	2680	rundll32.exe	AcroRd32.exe
PID 2680 wrote to memory of 2524	2680	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\config.toml
1⤵
- Suspicious use of WriteProcessMemory
PID:3068

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\config.toml
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2680

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\config.toml"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2524

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
628cf9c1e292e92405ba6d279501f14a

SHA1
3580b05864f4b294782c4cd40d37c32eb5d684e5

SHA256
acb10b1f2b0bb19f6fd96521df20a9cd5b1adf451fd4a37fdb746cd3d16d1c1b

SHA512
701061c4bdc45e4d6aba71a2b4baf449322449715c5fc281c952177e57dd5432d30bd77fd0bbfc45b84f0dc37afb0712187f5f4e116c835b1de7a55a10a4415c

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