Overview

overview

10

Static

static

3

advbattoex...er.exe

windows10-2004-x64

10

Resubmissions

15-05-2024 18:43

240515-xc4y1aeb7w 7

15-05-2024 17:43

240515-waz2lacb46 10

15-05-2024 15:09

240515-sjvxfseh8w 10

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General

  • Target

    advbattoexeconverter.exe

  • Size

    804KB

  • Sample

    240515-sjvxfseh8w

  • MD5

    83bb1b476c7143552853a2cf983c1142

  • SHA1

    8ff8ed5c533d70a7d933ec45264dd700145acd8c

  • SHA256

    af09248cb756488850f9e6f9a7a00149005bf47a9b2087b792ff6bd937297ffb

  • SHA512

    6916c6c5addf43f56b9de217e1b640ab6f4d7e5a73cd33a7189f66c9b7f0b954c5aa635f92fcef5692ca0ca0c8767e97a678e90d545079b5e6d421555f5b761a

  • SSDEEP

    24576:0xFkFHdJ8aT/iziXH6FGnYhqQuimKC6Qpor:0IdJ1KiBYhsl+r

Score
10/10
dcratdiscoveryevasioninfostealerpersistenceratspywarestealer

Malware Config

Targets

    • Target

      advbattoexeconverter.exe

    • Size

      804KB

    • MD5

      83bb1b476c7143552853a2cf983c1142

    • SHA1

      8ff8ed5c533d70a7d933ec45264dd700145acd8c

    • SHA256

      af09248cb756488850f9e6f9a7a00149005bf47a9b2087b792ff6bd937297ffb

    • SHA512

      6916c6c5addf43f56b9de217e1b640ab6f4d7e5a73cd33a7189f66c9b7f0b954c5aa635f92fcef5692ca0ca0c8767e97a678e90d545079b5e6d421555f5b761a

    • SSDEEP

      24576:0xFkFHdJ8aT/iziXH6FGnYhqQuimKC6Qpor:0IdJ1KiBYhsl+r

    Score
    10/10
    dcratdiscoveryevasioninfostealerpersistenceratspywarestealer

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

      ratinfostealerdcrat

    • Modifies WinLogon for persistence

      persistence

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

      rat

    • Disables Task Manager via registry modification

      evasion

    • Downloads MZ/PE file

    • 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 for any installed AV software in registry

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Drops file in System32 directory

    behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

4
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Peripheral Device Discovery

2
T1120

Process Discovery

1
T1057

Query Registry

6
T1012

Software Discovery

1
T1518

Security Software Discovery

1
T1518.001

System Information Discovery

5
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks