Overview

overview

10

Static

static

3

3850dda7fa...83.exe

windows7-x64

10

3850dda7fa...83.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    3850dda7fa236f108b0854e1033e2483

  • Size

    488KB

  • Sample

    231225-x92j5sbgfm

  • MD5

    3850dda7fa236f108b0854e1033e2483

  • SHA1

    4524c13d4fcb7c2cdd7fea0b60e1f6b4553e8894

  • SHA256

    b1056b18e01f75b03fcbc0fcdec284c773e3f300a8ceffd97e27dea372c29e4a

  • SHA512

    8a6abd8fbb1093f25e1b9532dddfa0eb9532907d6482216214828a178e03f56b9beda8f6030b6e05b9e0b1f52e5b41e435381b86094729d9836f8b0c9140b003

  • SSDEEP

    12288:bY7/tf+rvWBoF6nqw+RcpV4Uzl/cMG4sPY7KxqHLGbB:btbWBoEnjWcbp24sZxqHL

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      3850dda7fa236f108b0854e1033e2483

    • Size

      488KB

    • MD5

      3850dda7fa236f108b0854e1033e2483

    • SHA1

      4524c13d4fcb7c2cdd7fea0b60e1f6b4553e8894

    • SHA256

      b1056b18e01f75b03fcbc0fcdec284c773e3f300a8ceffd97e27dea372c29e4a

    • SHA512

      8a6abd8fbb1093f25e1b9532dddfa0eb9532907d6482216214828a178e03f56b9beda8f6030b6e05b9e0b1f52e5b41e435381b86094729d9836f8b0c9140b003

    • SSDEEP

      12288:bY7/tf+rvWBoF6nqw+RcpV4Uzl/cMG4sPY7KxqHLGbB:btbWBoEnjWcbp24sZxqHL

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (58) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Modify Registry

5
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks