General

  • Target

    Zapitvane_MACH_BULGARIA_EOOD_09_2023.xls

  • Size

    100KB

  • Sample

    230919-te2pwacc43

  • MD5

    55e0c24ad93d53e9a161d813f09d9e9a

  • SHA1

    e3b6b703b99801b32a4c9754d591383dc30432bb

  • SHA256

    c1f218a24f82946584e59d64abc9762e85614803fe82c432d21678d1ae000db5

  • SHA512

    55127c6cbb0a7120f86378feb4057ccfc5341b22f902fffd14121cde404002de6422ebc5b346ae8ea8967d458d4581c68f7ae97d6b0ff85ad10d38aa38071375

  • SSDEEP

    3072:QrxEtjPOtioVjDGUU1qfDlaGGx+cL2QnADtJE2zuxq+fr9wBLa71ba2ryLTHeYR:2xEtjPOtioVjDGUU1qfDlavx+W2QnApF

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

185.225.75.68:3569

Attributes
  • communication_password

    0edcbe7d888380c49e7d1dcf67b6ea6e

  • tor_process

    tor

Targets

    • Target

      Zapitvane_MACH_BULGARIA_EOOD_09_2023.xls

    • Size

      100KB

    • MD5

      55e0c24ad93d53e9a161d813f09d9e9a

    • SHA1

      e3b6b703b99801b32a4c9754d591383dc30432bb

    • SHA256

      c1f218a24f82946584e59d64abc9762e85614803fe82c432d21678d1ae000db5

    • SHA512

      55127c6cbb0a7120f86378feb4057ccfc5341b22f902fffd14121cde404002de6422ebc5b346ae8ea8967d458d4581c68f7ae97d6b0ff85ad10d38aa38071375

    • SSDEEP

      3072:QrxEtjPOtioVjDGUU1qfDlaGGx+cL2QnADtJE2zuxq+fr9wBLa71ba2ryLTHeYR:2xEtjPOtioVjDGUU1qfDlavx+W2QnApF

    • BitRAT

      BitRAT is a remote access tool written in C++ and uses leaked source code from other families.

    • Process spawned unexpected child process

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

    • XenArmor Suite

      XenArmor is as suite of password recovery tools for various application.

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads local data of messenger clients

      Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Accesses Microsoft Outlook accounts

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

4
T1552.001

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

4
T1005

Email Collection

1
T1114

Tasks