Analysis

  • max time kernel
    96s
  • max time network
    110s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    28-01-2021 16:25

General

  • Target

    HTG-69784869.exe

  • Size

    778KB

  • MD5

    652a7d27ddd37e4ce384bc1957c00b9e

  • SHA1

    fe2e68496eed6e1f789e1befe4f4d349d12e4143

  • SHA256

    1321e390a0141decaf5a8dab00fe02bc111ece34f446115842c6afa068c7fd3c

  • SHA512

    536aee0303b8379c57a921c4a504f81d70c73634bb2d34516b3b71943d2e8f5caf59f44de5b67e7838dd1909bb82d0c77aa9a14fb0a36a2321d9e5506e641cd1

Malware Config

Signatures

  • AgentTesla

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

  • AgentTesla Payload 1 IoCs
  • Executes dropped EXE 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.

  • 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 10 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\HTG-69784869.exe
    "C:\Users\Admin\AppData\Local\Temp\HTG-69784869.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3116
    • C:\Users\Admin\AppData\Local\Temp\pscvelqdj.exe
      C:\Users\Admin\AppData\Local\Temp\pscvelqdj.exe C:\Users\Admin\AppData\Local\Temp\tcpgayny.w
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:3984
      • C:\Users\Admin\AppData\Local\Temp\987tlsr.exe
        C:\Users\Admin\AppData\Local\Temp\pscvelqdj.exe C:\Users\Admin\AppData\Local\Temp\tcpgayny.w
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3164

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\987tlsr.exe
    MD5

    535dd1329aef11bf4654b3270f026d5b

    SHA1

    9c84de0bde8333f852120ab40710545b3f799300

    SHA256

    b31445fc4b8803d1b7122a6563002cfe3e925ffd1fdc9b84fba6fc78f6a8b955

    SHA512

    a552e20a09a796a6e3e18dece308880069c958cf9136bb4fc3ee726d6bc9b2f8eddbcff06ff9f9ded4dd268f5d0f39d516ad42ecce6455a4bf5cf4f3cb4c4ecc

  • C:\Users\Admin\AppData\Local\Temp\pscvelqdj.exe
    MD5

    c56b5f0201a3b3de53e561fe76912bfd

    SHA1

    2a4062e10a5de813f5688221dbeb3f3ff33eb417

    SHA256

    237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d

    SHA512

    195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c

  • C:\Users\Admin\AppData\Local\Temp\pscvelqdj.exe
    MD5

    c56b5f0201a3b3de53e561fe76912bfd

    SHA1

    2a4062e10a5de813f5688221dbeb3f3ff33eb417

    SHA256

    237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d

    SHA512

    195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c

  • C:\Users\Admin\AppData\Local\Temp\tcpgayny.w
    MD5

    6ae0b4f6ae333dfe33829ea82061ca51

    SHA1

    41385437464d9140225d857018ad1e137abec176

    SHA256

    820378722e43cd9b762dcbfc7998f4e4386b321094caaa783394a19362701af6

    SHA512

    779a4fef5ca308840fc273f6439dd6845475fb3f28a5fcfbdd438fb6647c7f7f5307dc6eeb974108813172401b19330c78c5b6c07f27355fbec001db2056efbf

  • C:\Users\Admin\AppData\Local\Temp\zxcdnq.qjp
    MD5

    50974f348d2efa2973548fad944c5945

    SHA1

    78b80e51f91d62e842c498088c29877bab3c9140

    SHA256

    fbbba0bbfc07689097f510175993ce8325e417d295ff009c534a533ee7aa2bbf

    SHA512

    e3c72cb6f4c1a21e511d8c84948ee9109b43974ae0f8490c3387c5e8978d92777fc73cebe901a2211e2b35d5e727f2c1ea01ae67dd8f78bb026178df53cabb71

  • memory/3164-7-0x000000000040188B-mapping.dmp
  • memory/3164-10-0x0000000000400000-0x000000000044B000-memory.dmp
    Filesize

    300KB

  • memory/3164-11-0x0000000002520000-0x0000000002521000-memory.dmp
    Filesize

    4KB

  • memory/3164-13-0x0000000002522000-0x0000000002524000-memory.dmp
    Filesize

    8KB

  • memory/3164-12-0x0000000002521000-0x0000000002522000-memory.dmp
    Filesize

    4KB

  • memory/3164-14-0x0000000002527000-0x0000000002528000-memory.dmp
    Filesize

    4KB

  • memory/3164-15-0x0000000002528000-0x0000000002529000-memory.dmp
    Filesize

    4KB

  • memory/3164-16-0x000000000252D000-0x000000000252F000-memory.dmp
    Filesize

    8KB

  • memory/3984-2-0x0000000000000000-mapping.dmp
  • memory/3984-9-0x0000000000960000-0x0000000000962000-memory.dmp
    Filesize

    8KB