Analysis

  • max time kernel
    134s
  • max time network
    103s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/08/2024, 05:01

General

  • Target

    Shipment documents for Order 20TDD67 440HQ BLMYRHBL009676 ContainerSKIU3444367221.exe

  • Size

    530KB

  • MD5

    7cb10676e04675097448239c9342eb07

  • SHA1

    7b6029fbfc2bdaaef503046ff4f1c0d27875b7e3

  • SHA256

    350c664220aa539cacaa4db8e91b042fed7d41df19d2368831c5a57959fbb33c

  • SHA512

    85dfaf19179840195059e7e02d7838fc928c7746c9716a81d21de0b74301058a62cef96dd8def105b5431a6641df40bc75357b418c2ebf40bb343a0b3689e2e9

  • SSDEEP

    12288:JiTzYG1w0wODUfSE5ZodnvtcZCnRn0idAA:JiTz/tUffwnvhnRnVA

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail3.dynamail.asia
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Fehm.718907M

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 IoCs
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • System Binary Proxy Execution: InstallUtil 1 TTPs 2 IoCs

    Abuse InstallUtil to proxy execution of malicious code.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Shipment documents for Order 20TDD67 440HQ BLMYRHBL009676 ContainerSKIU3444367221.exe
    "C:\Users\Admin\AppData\Local\Temp\Shipment documents for Order 20TDD67 440HQ BLMYRHBL009676 ContainerSKIU3444367221.exe"
    1⤵
    • System Binary Proxy Execution: InstallUtil
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1416
    • C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
      "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
      2⤵
      • Executes dropped EXE
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1448

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe

    Filesize

    41KB

    MD5

    5d4073b2eb6d217c19f2b22f21bf8d57

    SHA1

    f0209900fbf08d004b886a0b3ba33ea2b0bf9da8

    SHA256

    ac1a3f21fcc88f9cee7bf51581eafba24cc76c924f0821deb2afdf1080ddf3d3

    SHA512

    9ac94880684933ba3407cdc135abc3047543436567af14cd9269c4adc5a6535db7b867d6de0d6238a21b94e69f9890dbb5739155871a624520623a7e56872159

  • C:\Users\Admin\AppData\Local\Temp\b1f92ac9-345d-4ee6-83d6-512dab76f3b9\i.dll

    Filesize

    94KB

    MD5

    14ff402962ad21b78ae0b4c43cd1f194

    SHA1

    f8a510eb26666e875a5bdd1cadad40602763ad72

    SHA256

    fb9646cb956945bdc503e69645f6b5316d3826b780d3c36738d6b944e884d15b

    SHA512

    daa7a08bf3709119a944bce28f6ebdd24e54a22b18cd9f86a87873e958df121a3881dcdd5e162f6b4e543238c7aef20f657c9830df01d4c79290f7c9a4fcc54b

  • memory/1416-0-0x000000007474E000-0x000000007474F000-memory.dmp

    Filesize

    4KB

  • memory/1416-1-0x0000000000580000-0x000000000060A000-memory.dmp

    Filesize

    552KB

  • memory/1416-2-0x0000000002960000-0x000000000298C000-memory.dmp

    Filesize

    176KB

  • memory/1416-3-0x0000000005500000-0x0000000005AA4000-memory.dmp

    Filesize

    5.6MB

  • memory/1416-4-0x0000000004E90000-0x0000000004ED4000-memory.dmp

    Filesize

    272KB

  • memory/1416-5-0x0000000004FF0000-0x0000000005082000-memory.dmp

    Filesize

    584KB

  • memory/1416-69-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-194-0x0000000074740000-0x0000000074EF0000-memory.dmp

    Filesize

    7.7MB

  • memory/1416-75-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-73-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-71-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-67-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-66-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-63-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-61-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-59-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-57-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-53-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-51-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-49-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-47-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-45-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-43-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-41-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-39-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-35-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-33-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-31-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-29-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-25-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-23-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-22-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-19-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-13-0x0000000073150000-0x00000000731D9000-memory.dmp

    Filesize

    548KB

  • memory/1416-17-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-15-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-14-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-55-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-37-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-27-0x0000000002960000-0x0000000002986000-memory.dmp

    Filesize

    152KB

  • memory/1416-195-0x000000007474E000-0x000000007474F000-memory.dmp

    Filesize

    4KB

  • memory/1416-196-0x0000000074740000-0x0000000074EF0000-memory.dmp

    Filesize

    7.7MB

  • memory/1416-197-0x0000000074740000-0x0000000074EF0000-memory.dmp

    Filesize

    7.7MB

  • memory/1416-199-0x0000000074740000-0x0000000074EF0000-memory.dmp

    Filesize

    7.7MB

  • memory/1416-200-0x0000000006090000-0x000000000609C000-memory.dmp

    Filesize

    48KB

  • memory/1416-207-0x0000000074740000-0x0000000074EF0000-memory.dmp

    Filesize

    7.7MB

  • memory/1448-206-0x0000000074740000-0x0000000074EF0000-memory.dmp

    Filesize

    7.7MB

  • memory/1448-208-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB

  • memory/1448-209-0x0000000074740000-0x0000000074EF0000-memory.dmp

    Filesize

    7.7MB

  • memory/1448-210-0x0000000005360000-0x00000000053FC000-memory.dmp

    Filesize

    624KB

  • memory/1448-211-0x00000000051B0000-0x00000000051C8000-memory.dmp

    Filesize

    96KB

  • memory/1448-212-0x0000000005FD0000-0x0000000006036000-memory.dmp

    Filesize

    408KB

  • memory/1448-213-0x0000000006800000-0x0000000006850000-memory.dmp

    Filesize

    320KB

  • memory/1448-214-0x00000000068C0000-0x00000000068CA000-memory.dmp

    Filesize

    40KB

  • memory/1448-215-0x0000000074740000-0x0000000074EF0000-memory.dmp

    Filesize

    7.7MB

  • memory/1448-216-0x0000000074740000-0x0000000074EF0000-memory.dmp

    Filesize

    7.7MB