79c70132d8af494d0debc352db407d99b5c8c83b4484946b8a10be432e8f80b1

Resubmissions

11-06-2023 01:19

230611-bpmdtsgh9z 7

11-06-2023 01:17

230611-bnn62agb96 7

Analysis

max time kernel
149s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
11-06-2023 01:19

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General

Target

BCLjoy_200.emd
Size

17KB
MD5

29b350119fe38eb8fe6a45aed35c09cc
SHA1

f7a530e69e2d2c88836cdd750eed29d1ce71a84f
SHA256

f00f25644a628e738c155f493d072af143f253cbf99f08bf4829cbe5d4f4351c
SHA512

37d65d8ea0758dee60837b16cee8642a78fe87adba3c282c9e4395e662b054b6a99b57bd47e8b5fc4f8d8f5f39c0096199dd78d3aeb07917941e223a5db56c37
SSDEEP

384:T/fgVLRtGFfCLQVtrQdY+3Q39zjQpWv1R8wBg7gVx9Jj5nd1k:v+QL6AzLv1ywBlZk

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 10 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\.emd	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\emd_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\emd_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\emd_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\emd_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\emd_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\.emd\ = "emd_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000_CLASSES\emd_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

1428 AcroRd32.exe
1428 AcroRd32.exe
1428 AcroRd32.exe

pid	process
1428	AcroRd32.exe
1428	AcroRd32.exe
1428	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1740 wrote to memory of 656	1740	cmd.exe	rundll32.exe
PID 1740 wrote to memory of 656	1740	cmd.exe	rundll32.exe
PID 1740 wrote to memory of 656	1740	cmd.exe	rundll32.exe
PID 656 wrote to memory of 1428	656	rundll32.exe	AcroRd32.exe
PID 656 wrote to memory of 1428	656	rundll32.exe	AcroRd32.exe
PID 656 wrote to memory of 1428	656	rundll32.exe	AcroRd32.exe
PID 656 wrote to memory of 1428	656	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\BCLjoy_200.emd
1⤵
- Suspicious use of WriteProcessMemory
PID:1740

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\BCLjoy_200.emd
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:656

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\BCLjoy_200.emd"
3⤵
- Suspicious use of SetWindowsHookEx
PID:1428

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

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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