Overview

overview

10

Static

static

b1e13ac6_b...is.exe

windows7_x64

10

b1e13ac6_b...is.exe

windows10_x64

10

Sharing

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General

  • Target

    b1e13ac6_by_Libranalysis

  • Size

    624KB

  • Sample

    210505-7vrxln8phs

  • MD5

    b1e13ac67f1595460a6bb752c57d1763

  • SHA1

    abc71788fd8e7ba7c9d8693bd64fdc8503b0cfd4

  • SHA256

    357bb9f6a7f23022ae20ce04a376add44d82bfacc358e6364a91c11d3cbef5af

  • SHA512

    fb5828efac2203287e00044b29423c0b224ccaf9ea3d01d3ae9cfbe394136597aca1b523622c32033e610c4e8d5de81a5a261a442101c1d5f5bd1b578284c290

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      b1e13ac6_by_Libranalysis

    • Size

      624KB

    • MD5

      b1e13ac67f1595460a6bb752c57d1763

    • SHA1

      abc71788fd8e7ba7c9d8693bd64fdc8503b0cfd4

    • SHA256

      357bb9f6a7f23022ae20ce04a376add44d82bfacc358e6364a91c11d3cbef5af

    • SHA512

      fb5828efac2203287e00044b29423c0b224ccaf9ea3d01d3ae9cfbe394136597aca1b523622c32033e610c4e8d5de81a5a261a442101c1d5f5bd1b578284c290

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies WinLogon for persistence

      persistence

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Executes dropped EXE

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

      ransomware

    • Checks computer location settings

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

    • 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

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Hidden Files and Directories

1
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Bypass User Account Control

1
T1088

Defense Evasion

Modify Registry

5
T1112

Hidden Files and Directories

1
T1158

Bypass User Account Control

1
T1088

Disabling Security Tools

1
T1089

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Tasks