blister | f57aa9ab17ac7f1cb81871d28fb70e3a3072801f5da5d615549032c809190817

Analysis

max time kernel
38s
max time network
41s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
01-09-2022 17:51

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General

Target

f57aa9ab17ac7f1cb81871d28fb70e3a3072801f5da5d615549032c809190817.exe
Size

454KB
MD5

eab4905720f7b315f4e061f6092bab07
SHA1

742c84ccd773d3c60ecf75be8fb8231bfca702d5
SHA256

f57aa9ab17ac7f1cb81871d28fb70e3a3072801f5da5d615549032c809190817
SHA512

a3973ad44c53ef33abea5f341ff5f7934b6045136cabbffb8cd2c7b667722e13e4eb8b1f21fa2b663929bdb89f402e6d1f53d4561cef7639988d61ecf103dd26
SSDEEP

12288:8j01lUPCTgvBwXW2eHEnMisaLfBtgh6avAmu/q1:71yqTWAWTAMihfBtghF+G

Score

10^/10

blister loader

Malware Config

Signatures

BLISTER
BLISTER is a downloader used to deliver other malware families.
loader blister

Detect Blister loader x64 6 IoCs

loader

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\3d_dxg\VGAuthService.dll	family_blister_x64
\Users\Admin\AppData\Local\Temp\3d_dxg\VGAuthService.dll	family_blister_x64
\Users\Admin\AppData\Local\Temp\3d_dxg\VGAuthService.dll	family_blister_x64
\Users\Admin\AppData\Local\Temp\3d_dxg\VGAuthService.dll	family_blister_x64
\Users\Admin\AppData\Local\Temp\3d_dxg\VGAuthService.dll	family_blister_x64
behavioral1/memory/1428-61-0x000007FEF6480000-0x000007FEF6520000-memory.dmp	family_blister_x64

Loads dropped DLL 4 IoCs

Processes:

Rundll32.exe

pid process

1428 Rundll32.exe
1428 Rundll32.exe
1428 Rundll32.exe
1428 Rundll32.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

pid	process
1428	Rundll32.exe
1428	Rundll32.exe
1428	Rundll32.exe
1428	Rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

f57aa9ab17ac7f1cb81871d28fb70e3a3072801f5da5d615549032c809190817.exe

description	pid	process	target process
PID 784 wrote to memory of 1428	784	f57aa9ab17ac7f1cb81871d28fb70e3a3072801f5da5d615549032c809190817.exe	Rundll32.exe
PID 784 wrote to memory of 1428	784	f57aa9ab17ac7f1cb81871d28fb70e3a3072801f5da5d615549032c809190817.exe	Rundll32.exe
PID 784 wrote to memory of 1428	784	f57aa9ab17ac7f1cb81871d28fb70e3a3072801f5da5d615549032c809190817.exe	Rundll32.exe

C:\Users\Admin\AppData\Local\Temp\f57aa9ab17ac7f1cb81871d28fb70e3a3072801f5da5d615549032c809190817.exe
"C:\Users\Admin\AppData\Local\Temp\f57aa9ab17ac7f1cb81871d28fb70e3a3072801f5da5d615549032c809190817.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:784
- C:\Windows\system32\Rundll32.exe
  Rundll32.exe C:\Users\Admin\AppData\Local\Temp\3d_dxg\VGAuthService.dll,DXGIReportAdapterConfiguration
  2⤵
  - Loads dropped DLL
  PID:1428

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\3d_dxg\VGAuthService.dll

Filesize
621KB

MD5
160389696ed7f37f164f1947eda00830

SHA1
8fa0c8bd42a2e28820b4288fdc9d983348fd0724

SHA256
149c3d044abc3c3a15ba1bb55db7e05cbf87008bd3d23d7dd4a3e31fcfd7af10

SHA512
754476ae08414a28a86bebd1f99dd4ff1caef6a6b9e920ae9f84716ea2e9d1bd82c98c4f3a71065f7ef4afcbd889464a02d3628873a60a3e5596fdd08fa0196f

Download Submit
\Users\Admin\AppData\Local\Temp\3d_dxg\VGAuthService.dll

Filesize
621KB

MD5
160389696ed7f37f164f1947eda00830

SHA1
8fa0c8bd42a2e28820b4288fdc9d983348fd0724

SHA256
149c3d044abc3c3a15ba1bb55db7e05cbf87008bd3d23d7dd4a3e31fcfd7af10

SHA512
754476ae08414a28a86bebd1f99dd4ff1caef6a6b9e920ae9f84716ea2e9d1bd82c98c4f3a71065f7ef4afcbd889464a02d3628873a60a3e5596fdd08fa0196f

Download Submit
\Users\Admin\AppData\Local\Temp\3d_dxg\VGAuthService.dll

Filesize
621KB

MD5
160389696ed7f37f164f1947eda00830

SHA1
8fa0c8bd42a2e28820b4288fdc9d983348fd0724

SHA256
149c3d044abc3c3a15ba1bb55db7e05cbf87008bd3d23d7dd4a3e31fcfd7af10

SHA512
754476ae08414a28a86bebd1f99dd4ff1caef6a6b9e920ae9f84716ea2e9d1bd82c98c4f3a71065f7ef4afcbd889464a02d3628873a60a3e5596fdd08fa0196f

Download Submit
\Users\Admin\AppData\Local\Temp\3d_dxg\VGAuthService.dll

Filesize
621KB

MD5
160389696ed7f37f164f1947eda00830

SHA1
8fa0c8bd42a2e28820b4288fdc9d983348fd0724

SHA256
149c3d044abc3c3a15ba1bb55db7e05cbf87008bd3d23d7dd4a3e31fcfd7af10

SHA512
754476ae08414a28a86bebd1f99dd4ff1caef6a6b9e920ae9f84716ea2e9d1bd82c98c4f3a71065f7ef4afcbd889464a02d3628873a60a3e5596fdd08fa0196f

Download Submit
\Users\Admin\AppData\Local\Temp\3d_dxg\VGAuthService.dll

Filesize
621KB

MD5
160389696ed7f37f164f1947eda00830

SHA1
8fa0c8bd42a2e28820b4288fdc9d983348fd0724

SHA256
149c3d044abc3c3a15ba1bb55db7e05cbf87008bd3d23d7dd4a3e31fcfd7af10

SHA512
754476ae08414a28a86bebd1f99dd4ff1caef6a6b9e920ae9f84716ea2e9d1bd82c98c4f3a71065f7ef4afcbd889464a02d3628873a60a3e5596fdd08fa0196f

Download Submit
memory/784-54-0x000007FEFB871000-0x000007FEFB873000-memory.dmp

Filesize
8KB

Download
memory/1428-55-0x0000000000000000-mapping.dmp

Download
memory/1428-61-0x000007FEF6480000-0x000007FEF6520000-memory.dmp

Filesize
640KB

Download