Analysis

  • max time kernel
    99s
  • max time network
    12s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    29-01-2021 10:16

General

  • Target

    0b294a86c7a96940273ae96e52524162e31f869dd6b79100061de0399079c4e7.exe

  • Size

    1.2MB

  • MD5

    eef6884d0bb02a34de95bae6f9a73d96

  • SHA1

    ca4b15eb51c602c16389947716fee3e143e739ef

  • SHA256

    0b294a86c7a96940273ae96e52524162e31f869dd6b79100061de0399079c4e7

  • SHA512

    3bbce19ddaa9d7494d9cfcebe20c3e5fbe0aecdb6bc419b01f392291060ba53b4b03020e19e9442c35122744b5df7c48829740ec1d7def9d186d01a51a3e5b30

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.hybridgroupco.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    y.NI13R&oE(,

Signatures

  • AgentTesla

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

  • AgentTesla Payload 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.

  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0b294a86c7a96940273ae96e52524162e31f869dd6b79100061de0399079c4e7.exe
    "C:\Users\Admin\AppData\Local\Temp\0b294a86c7a96940273ae96e52524162e31f869dd6b79100061de0399079c4e7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1764
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\cGAmxwwzOQQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4D36.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1372
    • C:\Users\Admin\AppData\Local\Temp\0b294a86c7a96940273ae96e52524162e31f869dd6b79100061de0399079c4e7.exe
      "C:\Users\Admin\AppData\Local\Temp\0b294a86c7a96940273ae96e52524162e31f869dd6b79100061de0399079c4e7.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1308

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp4D36.tmp
    MD5

    3ebf0bec455da290217b07d7442c19e8

    SHA1

    d5033401decd421e9d91491529ebd26535d4b35b

    SHA256

    5656133e3820731ded9001d3caef44b47330a89c3e0f15487da952871f762834

    SHA512

    552b2d58da096d7de36fdacff58e0faf6c79f7edee6e5aa25b5556f33d7b07ee5334de91a7cb5a2b39314847bc1a5cd0d8f81dfe765087ae2fde63ea2f24912f

  • memory/1308-10-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/1308-11-0x000000000043760E-mapping.dmp
  • memory/1308-12-0x0000000074DD0000-0x00000000754BE000-memory.dmp
    Filesize

    6.9MB

  • memory/1308-13-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/1308-15-0x0000000000A90000-0x0000000000A91000-memory.dmp
    Filesize

    4KB

  • memory/1372-8-0x0000000000000000-mapping.dmp
  • memory/1764-2-0x0000000074DD0000-0x00000000754BE000-memory.dmp
    Filesize

    6.9MB

  • memory/1764-3-0x0000000010A30000-0x0000000010A31000-memory.dmp
    Filesize

    4KB

  • memory/1764-5-0x00000000047D0000-0x00000000047D1000-memory.dmp
    Filesize

    4KB

  • memory/1764-6-0x0000000000530000-0x0000000000533000-memory.dmp
    Filesize

    12KB

  • memory/1764-7-0x00000000052E0000-0x0000000005387000-memory.dmp
    Filesize

    668KB