ba0f13322211b52802b5876273575b36f7b5623008b5ce6eaa535788cb3087cd

Analysis

max time kernel
156s
max time network
40s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
15-03-2023 23:08

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General

Target

ReasonLabs/DNS/ui/app.asar.sig
Size

685B
MD5

74272b81bd5fbdcb6ea44dc21dbab660
SHA1

90bac7c9beb68c3f01f54f6fe7a8ca0cd5099378
SHA256

d88f8ff2dd70f944c479d0a0f6c9edbd375538f7849fc78dd25c5f8daab13051
SHA512

8b85106b13cd2fb756ee52a2e0905c40bfa561fba2cf4a9a90a02f89e587cba69f4fb7d4050d726925bbd913481506bcc64d402cbead755b9495ab3d6d4f0c99

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 10 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\.sig	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\.sig\ = "sig_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\sig_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\sig_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\sig_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\sig_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\sig_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\sig_auto_file\shell	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

700 AcroRd32.exe
700 AcroRd32.exe
700 AcroRd32.exe

pid	process
700	AcroRd32.exe
700	AcroRd32.exe
700	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 864 wrote to memory of 1520	864	cmd.exe	rundll32.exe
PID 864 wrote to memory of 1520	864	cmd.exe	rundll32.exe
PID 864 wrote to memory of 1520	864	cmd.exe	rundll32.exe
PID 1520 wrote to memory of 700	1520	rundll32.exe	AcroRd32.exe
PID 1520 wrote to memory of 700	1520	rundll32.exe	AcroRd32.exe
PID 1520 wrote to memory of 700	1520	rundll32.exe	AcroRd32.exe
PID 1520 wrote to memory of 700	1520	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\ReasonLabs\DNS\ui\app.asar.sig
1⤵
- Suspicious use of WriteProcessMemory
PID:864

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\ReasonLabs\DNS\ui\app.asar.sig
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1520

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\ReasonLabs\DNS\ui\app.asar.sig"
3⤵
- Suspicious use of SetWindowsHookEx
PID:700

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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