Analysis

  • max time kernel
    133s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    09-11-2020 19:29

General

  • Target

    NEW ORDER - BQR381065 - Solyman Services AET-SDZ-CA-Rivaroxaba.exe

  • Size

    472KB

  • MD5

    f70366be12e36b742f437474ad911b31

  • SHA1

    6a14b48690e4001b9485f1042e210e826e730046

  • SHA256

    e2d6119bb484c9e5f5a7107b4687553416208badbb881df4328bec5146d08509

  • SHA512

    3c25bee9a48929389f46deccaac1e2540e0b48c18be6f1d9e09131bd48fe29939c0b5c1dfff6f7f4e550de364798137d2c281684b5ee8a2e9a9ba57f3d8bf121

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    wael@cerasantrading.store
  • Password:
    55Glasgow$

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 IoCs
  • rezer0 1 IoCs

    Detects ReZer0, a packer with multiple versions used in various campaigns.

  • 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.

  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEW ORDER - BQR381065 - Solyman Services AET-SDZ-CA-Rivaroxaba.exe
    "C:\Users\Admin\AppData\Local\Temp\NEW ORDER - BQR381065 - Solyman Services AET-SDZ-CA-Rivaroxaba.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1040
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WePmJo" /XML "C:\Users\Admin\AppData\Local\Temp\tmp258A.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:524
    • C:\Users\Admin\AppData\Local\Temp\NEW ORDER - BQR381065 - Solyman Services AET-SDZ-CA-Rivaroxaba.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1092

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Credential Access

Credentials in Files

2
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

2
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp258A.tmp
    MD5

    d44ef872f56849cf59f43a62b64a1a97

    SHA1

    57503641fb0681a44591c00967abd7779786683a

    SHA256

    e35f9b48d67b8665d464a50354a70cb0753202d6b3074ef502f3594d2315b7b2

    SHA512

    9bbacbbd5d956053ef779e54d1447a836ea64c4d44ca3e41eb5122de39dccf26bd5e5f3ddd7bcfabde3b212ccff3ffd670a653d773b7784c96949a3381ebbaaf

  • memory/524-5-0x0000000000000000-mapping.dmp
  • memory/1040-0-0x0000000074900000-0x0000000074FEE000-memory.dmp
    Filesize

    6.9MB

  • memory/1040-1-0x0000000001070000-0x0000000001071000-memory.dmp
    Filesize

    4KB

  • memory/1040-3-0x00000000003F0000-0x00000000003F3000-memory.dmp
    Filesize

    12KB

  • memory/1040-4-0x0000000005150000-0x00000000051A3000-memory.dmp
    Filesize

    332KB

  • memory/1092-7-0x0000000000400000-0x0000000000450000-memory.dmp
    Filesize

    320KB

  • memory/1092-8-0x000000000044BDDE-mapping.dmp
  • memory/1092-9-0x0000000000400000-0x0000000000450000-memory.dmp
    Filesize

    320KB

  • memory/1092-10-0x0000000000400000-0x0000000000450000-memory.dmp
    Filesize

    320KB

  • memory/1092-11-0x0000000074900000-0x0000000074FEE000-memory.dmp
    Filesize

    6.9MB