Overview

overview

10

Static

static

cfc2042c_b...is.exe

windows7_x64

10

cfc2042c_b...is.exe

windows10_x64

10

Sharing

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General

  • Target

    cfc2042c_by_Libranalysis

  • Size

    1.5MB

  • Sample

    210505-rh949r6276

  • MD5

    cfc2042cfba9c9198695f5d8225c1e18

  • SHA1

    6e5ddf8e712a91e162c3d8fdf9dedcced0a1cc46

  • SHA256

    260d42da5478025970f78fdaabbfc83384795e96412ba5040d128572b691b48f

  • SHA512

    848dbb1f4481c95272078f31075c4e0fd1af804286323ff50b09ebfd6f7338d9320fd5a7abaede4ad33e04a88d859df773b6fe06eaa5f395bb407381cb68f774

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      cfc2042c_by_Libranalysis

    • Size

      1.5MB

    • MD5

      cfc2042cfba9c9198695f5d8225c1e18

    • SHA1

      6e5ddf8e712a91e162c3d8fdf9dedcced0a1cc46

    • SHA256

      260d42da5478025970f78fdaabbfc83384795e96412ba5040d128572b691b48f

    • SHA512

      848dbb1f4481c95272078f31075c4e0fd1af804286323ff50b09ebfd6f7338d9320fd5a7abaede4ad33e04a88d859df773b6fe06eaa5f395bb407381cb68f774

    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