Overview

overview

10

Static

static

1

EFI_[unkno...]_.zip

windows10-2004-x64

Resubmissions

18-07-2024 00:13

240718-ah91wawelp 10

18-07-2024 00:06

240718-ady3tayhqh 10

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General

  • Target

    EFI_[unknowncheats.me]_.zip

  • Size

    22B

  • Sample

    240718-ady3tayhqh

  • MD5

    76cdb2bad9582d23c1f6f4d868218d6c

  • SHA1

    b04f3ee8f5e43fa3b162981b50bb72fe1acabb33

  • SHA256

    8739c76e681f900923b900c9df0ef75cf421d39cabb54650c4b9ad19b6a76d85

  • SHA512

    5e2f959f36b66df0580a94f384c5fc1ceeec4b2a3925f062d7b68f21758b86581ac2adcfdde73a171a28496e758ef1b23ca4951c05455cdae9357cc3b5a5825f

Score
10/10
dharmadefense_evasionexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Targets

    • Target

      EFI_[unknowncheats.me]_.zip

    • Size

      22B

    • MD5

      76cdb2bad9582d23c1f6f4d868218d6c

    • SHA1

      b04f3ee8f5e43fa3b162981b50bb72fe1acabb33

    • SHA256

      8739c76e681f900923b900c9df0ef75cf421d39cabb54650c4b9ad19b6a76d85

    • SHA512

      5e2f959f36b66df0580a94f384c5fc1ceeec4b2a3925f062d7b68f21758b86581ac2adcfdde73a171a28496e758ef1b23ca4951c05455cdae9357cc3b5a5825f

    Score
    10/10
    dharmadefense_evasionexecutionimpactpersistenceransomwarespywarestealer

    • Dharma

      Dharma is a ransomware that uses security software installation to hide malicious activities.

      ransomwaredharma

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Renames multiple (522) files with added filename extension

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

      ransomware

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Deletes itself

    • Drops startup file

    • 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

    • Drops desktop.ini file(s)

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    behavioral1

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Windows Management Instrumentation

1
T1047

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Indicator Removal

2
T1070

File Deletion

2
T1070.004

Modify Registry

2
T1112

Direct Volume Access

1
T1006

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

4
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Remote System Discovery

1
T1018

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Inhibit System Recovery

2
T1490

Resource Development

Reconnaissance

Tasks