Analysis

  • max time kernel
    135s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-04-2023 10:51

General

  • Target

    TT SWIFT COPY $37,000.00.exe

  • Size

    725KB

  • MD5

    627d531f2361508ce6d650dfb74f50b7

  • SHA1

    74cdf31cf47ce5898fc6391bfdd1b8801bc2813f

  • SHA256

    fa1cb59a2e33d1b2256194f4741afc762ef819cf058614afd490f56e5e92bcd5

  • SHA512

    e13dc5bdf4e48cabdfe165fdad52c686d64d583e91d7251ea0b70d0437dd13be7fbbc56e5d81ae1647a6a04ff47a3c8aa84076ba5a049e907fa0dd02afa51066

  • SSDEEP

    12288:nUuXMbBzUnxUn7bNVVebMyywV42hhmihgMDdvqv96q6GmdEk9z:fXMbynWnlwVHh1hbdvq16qSmu

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.southernboilers.org
  • Port:
    587
  • Username:
    info@southernboilers.org
  • Password:
    Sksmoke2018#
  • Email To:
    obtxxxtf@gmail.com

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\TT SWIFT COPY $37,000.00.exe
    "C:\Users\Admin\AppData\Local\Temp\TT SWIFT COPY $37,000.00.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:380
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IkhnidnnYYPv" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDBBF.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2432
    • C:\Users\Admin\AppData\Local\Temp\TT SWIFT COPY $37,000.00.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:2844

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\TT SWIFT COPY $37,000.00.exe.log
    Filesize

    1KB

    MD5

    17573558c4e714f606f997e5157afaac

    SHA1

    13e16e9415ceef429aaf124139671ebeca09ed23

    SHA256

    c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

    SHA512

    f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

  • C:\Users\Admin\AppData\Local\Temp\tmpDBBF.tmp
    Filesize

    1KB

    MD5

    7e2721292259896e870ea2866fafa2ee

    SHA1

    c39cd3f160005de3a9ba30635061a0dc39e33060

    SHA256

    97a710950fa65534131dbe831aa77fc1b2c687839130a90152d262eb6502a386

    SHA512

    319eb756f917797c5b065c2cf9b7110e631e96037c49843861786c85d7acc36138b2cdd2915b63946e9878109ab94cc70b82683bd21c2edd1f32dd200bcc2ee6

  • memory/380-137-0x0000000005820000-0x000000000582A000-memory.dmp
    Filesize

    40KB

  • memory/380-134-0x0000000005710000-0x00000000057AC000-memory.dmp
    Filesize

    624KB

  • memory/380-133-0x0000000000D10000-0x0000000000DCA000-memory.dmp
    Filesize

    744KB

  • memory/380-138-0x0000000005A40000-0x0000000005A96000-memory.dmp
    Filesize

    344KB

  • memory/380-139-0x0000000005B40000-0x0000000005B50000-memory.dmp
    Filesize

    64KB

  • memory/380-140-0x0000000005B40000-0x0000000005B50000-memory.dmp
    Filesize

    64KB

  • memory/380-135-0x0000000005DC0000-0x0000000006364000-memory.dmp
    Filesize

    5.6MB

  • memory/380-136-0x00000000058B0000-0x0000000005942000-memory.dmp
    Filesize

    584KB

  • memory/2844-144-0x0000000000400000-0x0000000000430000-memory.dmp
    Filesize

    192KB

  • memory/2844-147-0x0000000004F40000-0x0000000004FA6000-memory.dmp
    Filesize

    408KB

  • memory/2844-148-0x0000000005230000-0x0000000005240000-memory.dmp
    Filesize

    64KB

  • memory/2844-149-0x0000000005230000-0x0000000005240000-memory.dmp
    Filesize

    64KB

  • memory/2844-150-0x00000000069F0000-0x0000000006A40000-memory.dmp
    Filesize

    320KB

  • memory/2844-151-0x0000000006D30000-0x0000000006EF2000-memory.dmp
    Filesize

    1.8MB