a91d6d39389eb6374d3ef4384b496894b1e277bb4175d85b500d31366ac42ffd | Triage

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Overview

overview

Static

static

8

a91d6d3938...fd.exe

windows7-x64

a91d6d3938...fd.exe

windows10-2004-x64

Sharing

General

Target

a91d6d39389eb6374d3ef4384b496894b1e277bb4175d85b500d31366ac42ffd
Size

429KB
Sample

221123-1ek6fsfa85
MD5

24429ba7391dfb9ef44dba198357a27c
SHA1

0043b89fe2f1ac36f2ac46d9bc23e450d389d041
SHA256

a91d6d39389eb6374d3ef4384b496894b1e277bb4175d85b500d31366ac42ffd
SHA512

4c653019173f45215b32ccc44a547d9c0eef01eeb3e4b0c276989381c0a8f961694d23eddf341bbf20c91fae8b519eb82101496162b697909d4495ec2cb071b9
SSDEEP

6144:5uHONl+lXDZJfLufs73dOk0XDpNjNOpys85rG1VVE+Ih/UOPSe570Szp3irG1VVY:gONeZJys73dOvXDpNjNe8NupOB0JuIqa

Score

10^/10

evasion persistence upx

Static task

static1

1 signatures

Behavioral task

behavioral1

Sample

a91d6d39389eb6374d3ef4384b496894b1e277bb4175d85b500d31366ac42ffd.exe

Resource

win7-20220812-en

evasion persistence upx

windows7-x64

17 signatures

150 seconds

Behavioral task

behavioral2

Sample

a91d6d39389eb6374d3ef4384b496894b1e277bb4175d85b500d31366ac42ffd.exe

Resource

win10v2004-20221111-en

evasion persistence upx

windows10-2004-x64

16 signatures

150 seconds

Malware Config

Targets

- Target
  
  a91d6d39389eb6374d3ef4384b496894b1e277bb4175d85b500d31366ac42ffd
- Size
  
  429KB
- MD5
  
  24429ba7391dfb9ef44dba198357a27c
- SHA1
  
  0043b89fe2f1ac36f2ac46d9bc23e450d389d041
- SHA256
  
  a91d6d39389eb6374d3ef4384b496894b1e277bb4175d85b500d31366ac42ffd
- SHA512
  
  4c653019173f45215b32ccc44a547d9c0eef01eeb3e4b0c276989381c0a8f961694d23eddf341bbf20c91fae8b519eb82101496162b697909d4495ec2cb071b9
- SSDEEP
  
  6144:5uHONl+lXDZJfLufs73dOk0XDpNjNOpys85rG1VVE+Ih/UOPSe570Szp3irG1VVY:gONeZJys73dOvXDpNjNe8NupOB0JuIqa
Score

10^/10

evasion persistence upx
- Modifies visibility of file extensions in Explorer
  evasion
- Blocks application from running via registry modification
  Adds application to list of disallowed applications.
  evasion
- Executes dropped EXE
- Sets file execution options in registry
  persistence
- UPX packed file
  Detects executables packed with UPX/modified UPX open source packer.
  upx
- Loads dropped DLL
- Drops autorun.inf file
  Malware can abuse Windows Autorun to spread further via attached volumes.
- Drops file in System32 directory
behavioral1 behavioral2

MITRE ATT&CK Enterprise v6

Initial Access

Replication Through Removable Media

Execution

Persistence

Hidden Files and Directories

Registry Run Keys / Startup Folder

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Lateral Movement

Replication Through Removable Media

Collection

Command and Control

Exfiltration

Impact

Tasks

static1

behavioral1

evasionpersistenceupx

behavioral2

evasionpersistenceupx

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