Analysis

  • max time kernel
    62s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2022 08:42

General

  • Target

    SHIPPING INVOICE-PACKING LIST DOCS.exe

  • Size

    555KB

  • MD5

    5b7d13236bd0e3f952b7c7b68b04e55d

  • SHA1

    4d4f83b41622cdc8e418681c4c15b7ffc702b421

  • SHA256

    65c9b0f0953bfb1534836f0077fc7b14edf3c2d06649931cf39c26c7ec9d8f19

  • SHA512

    91eed2ee379165f4a316b8cabff80610f7815080650e2eb41db155aa3e7ba629a5739b5ab33fef6ea7dc7b899316bbde1d70243b709350739bc596a02de8d684

  • SSDEEP

    12288:XaZbIZlxbK9ESCYX4XP4upRj19sCdyGIz46mol:XaKxu7R242On9M6mol

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5515611206:AAEcQSX8hXHOAxSYr8KUdLxGF5eqw4FRXoA/

Signatures

  • AgentTesla

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • 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
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SHIPPING INVOICE-PACKING LIST DOCS.exe
    "C:\Users\Admin\AppData\Local\Temp\SHIPPING INVOICE-PACKING LIST DOCS.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1388
    • C:\Users\Admin\AppData\Local\Temp\dkixjr.exe
      "C:\Users\Admin\AppData\Local\Temp\dkixjr.exe" C:\Users\Admin\AppData\Local\Temp\hlhtoeysjn.mr
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1004
      • C:\Users\Admin\AppData\Local\Temp\dkixjr.exe
        "C:\Users\Admin\AppData\Local\Temp\dkixjr.exe" C:\Users\Admin\AppData\Local\Temp\hlhtoeysjn.mr
        3⤵
        • Executes dropped EXE
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:1400

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    333KB

    MD5

    3530026ab3aa2fb86aa48d3e97ea4e92

    SHA1

    d0b797210d85a28ee0b8344cc057c7cfad091a91

    SHA256

    ce1161671512232159adcc0ae8d0d1b71aa87fecacbd916213e05ae8fec6c37b

    SHA512

    f5c9ced6493a8703ed649eb015e1d544d45b33fe226185d44f2607fdad4256d17872b00c923870e19828a2f1073fc134183d9c43358da6e3d525f9cb439f74c8

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

    Filesize

    333KB

    MD5

    3530026ab3aa2fb86aa48d3e97ea4e92

    SHA1

    d0b797210d85a28ee0b8344cc057c7cfad091a91

    SHA256

    ce1161671512232159adcc0ae8d0d1b71aa87fecacbd916213e05ae8fec6c37b

    SHA512

    f5c9ced6493a8703ed649eb015e1d544d45b33fe226185d44f2607fdad4256d17872b00c923870e19828a2f1073fc134183d9c43358da6e3d525f9cb439f74c8

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

    Filesize

    333KB

    MD5

    3530026ab3aa2fb86aa48d3e97ea4e92

    SHA1

    d0b797210d85a28ee0b8344cc057c7cfad091a91

    SHA256

    ce1161671512232159adcc0ae8d0d1b71aa87fecacbd916213e05ae8fec6c37b

    SHA512

    f5c9ced6493a8703ed649eb015e1d544d45b33fe226185d44f2607fdad4256d17872b00c923870e19828a2f1073fc134183d9c43358da6e3d525f9cb439f74c8

  • C:\Users\Admin\AppData\Local\Temp\fksex.wyt

    Filesize

    295KB

    MD5

    cf366c6fa3c9ef7a9b1c15463392f530

    SHA1

    765fb4bb4cc02d322c00f66ccdd812a437565275

    SHA256

    650a32f883f5fbd02848ee065d89e56adee648786f0b0ffe81c78f8b1a6be45a

    SHA512

    9a3f3d9fbed61935031c5927bb68ce6f84e8b1d06ef49d0d22b89ecdd55f4ab5921a27c9428bff4bfd3385a05397ccff38dc550a5f74ff1b2179fc69f92cea0f

  • C:\Users\Admin\AppData\Local\Temp\hlhtoeysjn.mr

    Filesize

    5KB

    MD5

    f63eb37d3310026dbd77c9a413c4a0ad

    SHA1

    a167b17dfc66e148217ec051c526d24d9cd94df0

    SHA256

    13ef85bf9408f5338b453a5c52f872e66fec377db87c0675584d65649eca903a

    SHA512

    7abd2250119e79eed2f97b5168a034ee5f1e5fac95ac49cb16481dc2a36c678ab6561abceba1a017dccba4175757c948cd125af4406d399482291024dc9a2b9b

  • \Users\Admin\AppData\Local\Temp\dkixjr.exe

    Filesize

    333KB

    MD5

    3530026ab3aa2fb86aa48d3e97ea4e92

    SHA1

    d0b797210d85a28ee0b8344cc057c7cfad091a91

    SHA256

    ce1161671512232159adcc0ae8d0d1b71aa87fecacbd916213e05ae8fec6c37b

    SHA512

    f5c9ced6493a8703ed649eb015e1d544d45b33fe226185d44f2607fdad4256d17872b00c923870e19828a2f1073fc134183d9c43358da6e3d525f9cb439f74c8

  • \Users\Admin\AppData\Local\Temp\dkixjr.exe

    Filesize

    333KB

    MD5

    3530026ab3aa2fb86aa48d3e97ea4e92

    SHA1

    d0b797210d85a28ee0b8344cc057c7cfad091a91

    SHA256

    ce1161671512232159adcc0ae8d0d1b71aa87fecacbd916213e05ae8fec6c37b

    SHA512

    f5c9ced6493a8703ed649eb015e1d544d45b33fe226185d44f2607fdad4256d17872b00c923870e19828a2f1073fc134183d9c43358da6e3d525f9cb439f74c8

  • memory/1004-56-0x0000000000000000-mapping.dmp

  • memory/1388-54-0x0000000075E11000-0x0000000075E13000-memory.dmp

    Filesize

    8KB

  • memory/1400-63-0x0000000000401896-mapping.dmp

  • memory/1400-66-0x0000000001F20000-0x0000000001F5C000-memory.dmp

    Filesize

    240KB

  • memory/1400-67-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB