General

  • Target

    C7DF63BD3D9DBD3CBD11E02D0CA6F8988251BF5BEA12D.exe

  • Size

    2.6MB

  • Sample

    211002-ab462sdcc8

  • MD5

    a1a2a0b423349f463d23969864a111c0

  • SHA1

    37d83a34da50b959759cbb18b01654bbd17bbb3f

  • SHA256

    c7df63bd3d9dbd3cbd11e02d0ca6f8988251bf5bea12d6d76c40ba2d33b5468d

  • SHA512

    3100ef7b7cb3c5887bbf6a8eededee660da6f0744e09943bc1276b9db09baaed7dab299a09ace9ba64c09a17d5a47126b8edd9e21be96d78b2bcd9a434940d2d

Malware Config

Extracted

Family

vidar

Version

39.7

Botnet

933

C2

https://shpak125.tumblr.com/

Attributes
  • profile_id

    933

Extracted

Family

smokeloader

Version

2020

C2

http://conceitosseg.com/upload/

http://integrasidata.com/upload/

http://ozentekstil.com/upload/

http://finbelportal.com/upload/

http://telanganadigital.com/upload/

http://fiskahlilian16.top/

http://paishancho17.top/

http://ydiannetter18.top/

http://azarehanelle19.top/

http://quericeriant20.top/

rc4.i32
rc4.i32
rc4.i32
rc4.i32

Extracted

Family

raccoon

Botnet

� um@�Y]�����sN)R���B��Jbd~7�4�e�9�{�

Attributes
  • url4cnc

    �cb{K^�WXP�۸��fB:O�ѡԾ"e.�p�tI�'�.��kAd(8����(�G�� �a�@�R����jN �V��N*��

rc4.plain
rc4.plain

Extracted

Family

vidar

Version

41.1

Botnet

937

C2

https://mas.to/@bardak1ho

Attributes
  • profile_id

    937

Extracted

Family

raccoon

Botnet

�! =A�B_ �����!Os�ܺ��?0yd�f�0F�:�-�

Attributes
  • url4cnc

    �cb{K^�WXP�۸��fB:O�ȼ��/1h �m�p_�|�;�\�~ |"v����h�[��i�a������1S���>����Ѩ�R�P2��@cC

rc4.plain
rc4.plain

Targets

    • Target

      C7DF63BD3D9DBD3CBD11E02D0CA6F8988251BF5BEA12D.exe

    • Size

      2.6MB

    • MD5

      a1a2a0b423349f463d23969864a111c0

    • SHA1

      37d83a34da50b959759cbb18b01654bbd17bbb3f

    • SHA256

      c7df63bd3d9dbd3cbd11e02d0ca6f8988251bf5bea12d6d76c40ba2d33b5468d

    • SHA512

      3100ef7b7cb3c5887bbf6a8eededee660da6f0744e09943bc1276b9db09baaed7dab299a09ace9ba64c09a17d5a47126b8edd9e21be96d78b2bcd9a434940d2d

    • Modifies Windows Defender Real-time Protection settings

    • Process spawned unexpected child process

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

    • Raccoon

      Simple but powerful infostealer which was very active in 2019.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Nirsoft

    • Vidar Stealer

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • 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.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses 2FA software files, possible credential harvesting

    • Checks installed software on the system

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

    • Checks whether UAC is enabled

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Modify Existing Service

1
T1031

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

2
T1112

Disabling Security Tools

1
T1089

Virtualization/Sandbox Evasion

1
T1497

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

6
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

6
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Tasks