Analysis

  • max time kernel
    143s
  • max time network
    66s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    15-04-2021 17:28

General

  • Target

    0d24edbababf83cfc896376cff5faa7d.exe

  • Size

    641KB

  • MD5

    0d24edbababf83cfc896376cff5faa7d

  • SHA1

    a7253544a3b15c1e6e87b5e667ce2f7fe3f5d342

  • SHA256

    884e1915901c600a0e0203c06de3a208a1adba49289f7ee8f910fa112782357e

  • SHA512

    6a7286aa8436e99e4f96af8d1667e74aef312e34778a65175d564058d7f88062c9df93fe66e4c3c2d87986eef1f6ab5eea9be97cab55f125355163ff1d1914cc

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.eczanaerya.com
  • Port:
    587
  • Username:
    John@eczanaerya.com
  • Password:
    daunting@123

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 IoCs
  • Executes dropped EXE 2 IoCs
  • Drops startup file 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Obfuscated with Agile.Net obfuscator 1 IoCs

    Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

  • 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0d24edbababf83cfc896376cff5faa7d.exe
    "C:\Users\Admin\AppData\Local\Temp\0d24edbababf83cfc896376cff5faa7d.exe"
    1⤵
    • Drops startup file
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1776
    • C:\Users\Admin\Documents\shelf.exe
      "C:\Users\Admin\Documents\shelf.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1520
      • C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
        "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:544

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

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

    91c9ae9c9a17a9db5e08b120e668c74c

    SHA1

    50770954c1ceb0bb6f1d5d3f2de2a0a065773723

    SHA256

    e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

    SHA512

    ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

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

    91c9ae9c9a17a9db5e08b120e668c74c

    SHA1

    50770954c1ceb0bb6f1d5d3f2de2a0a065773723

    SHA256

    e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

    SHA512

    ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

  • C:\Users\Admin\Documents\shelf.exe
    MD5

    0d24edbababf83cfc896376cff5faa7d

    SHA1

    a7253544a3b15c1e6e87b5e667ce2f7fe3f5d342

    SHA256

    884e1915901c600a0e0203c06de3a208a1adba49289f7ee8f910fa112782357e

    SHA512

    6a7286aa8436e99e4f96af8d1667e74aef312e34778a65175d564058d7f88062c9df93fe66e4c3c2d87986eef1f6ab5eea9be97cab55f125355163ff1d1914cc

  • C:\Users\Admin\Documents\shelf.exe
    MD5

    0d24edbababf83cfc896376cff5faa7d

    SHA1

    a7253544a3b15c1e6e87b5e667ce2f7fe3f5d342

    SHA256

    884e1915901c600a0e0203c06de3a208a1adba49289f7ee8f910fa112782357e

    SHA512

    6a7286aa8436e99e4f96af8d1667e74aef312e34778a65175d564058d7f88062c9df93fe66e4c3c2d87986eef1f6ab5eea9be97cab55f125355163ff1d1914cc

  • \Users\Admin\AppData\Local\Temp\InstallUtil.exe
    MD5

    91c9ae9c9a17a9db5e08b120e668c74c

    SHA1

    50770954c1ceb0bb6f1d5d3f2de2a0a065773723

    SHA256

    e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

    SHA512

    ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

  • \Users\Admin\Documents\shelf.exe
    MD5

    0d24edbababf83cfc896376cff5faa7d

    SHA1

    a7253544a3b15c1e6e87b5e667ce2f7fe3f5d342

    SHA256

    884e1915901c600a0e0203c06de3a208a1adba49289f7ee8f910fa112782357e

    SHA512

    6a7286aa8436e99e4f96af8d1667e74aef312e34778a65175d564058d7f88062c9df93fe66e4c3c2d87986eef1f6ab5eea9be97cab55f125355163ff1d1914cc

  • \Users\Admin\Documents\shelf.exe
    MD5

    0d24edbababf83cfc896376cff5faa7d

    SHA1

    a7253544a3b15c1e6e87b5e667ce2f7fe3f5d342

    SHA256

    884e1915901c600a0e0203c06de3a208a1adba49289f7ee8f910fa112782357e

    SHA512

    6a7286aa8436e99e4f96af8d1667e74aef312e34778a65175d564058d7f88062c9df93fe66e4c3c2d87986eef1f6ab5eea9be97cab55f125355163ff1d1914cc

  • memory/544-85-0x00000000003A0000-0x00000000003A1000-memory.dmp
    Filesize

    4KB

  • memory/544-83-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/544-80-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/544-81-0x000000000043761E-mapping.dmp
  • memory/1520-68-0x0000000000000000-mapping.dmp
  • memory/1520-77-0x00000000005A0000-0x00000000005A1000-memory.dmp
    Filesize

    4KB

  • memory/1520-76-0x00000000005D0000-0x00000000005DB000-memory.dmp
    Filesize

    44KB

  • memory/1520-73-0x0000000004CB0000-0x0000000004CB1000-memory.dmp
    Filesize

    4KB

  • memory/1520-71-0x0000000001060000-0x0000000001061000-memory.dmp
    Filesize

    4KB

  • memory/1776-60-0x00000000009A0000-0x00000000009A1000-memory.dmp
    Filesize

    4KB

  • memory/1776-65-0x0000000004E61000-0x0000000004E62000-memory.dmp
    Filesize

    4KB

  • memory/1776-64-0x00000000004B0000-0x00000000004D1000-memory.dmp
    Filesize

    132KB

  • memory/1776-62-0x0000000004E60000-0x0000000004E61000-memory.dmp
    Filesize

    4KB