Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 00:26

General

  • Target

    Order37809.exe

  • Size

    746KB

  • MD5

    29a1ae76ec55026d364b3353744d1856

  • SHA1

    0d12536c4daec56b5ef758dcffa63ba557a59318

  • SHA256

    af866ce87e2851bc3b592a6fc07d227974809126ee02d68313aa0b45c157ed1d

  • SHA512

    265d152bb0572da4f2d62cb17ea9486a6e5964d2a0a7a8bac5f03e4b828fab33332c22ca79f401991f7aa03c0636ceaf24c8843531a9d665e91cadbff3297366

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.kindlogistics.co.ke
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Kv0BU[@-O9kf

Signatures

  • AgentTesla

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

  • AgentTesla Payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

  • 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Order37809.exe
    "C:\Users\Admin\AppData\Local\Temp\Order37809.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3568
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\&startupname&" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCDC0.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2952
    • C:\Users\Admin\AppData\Local\Temp\Order37809.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3684

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

3
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Order37809.exe.log
    Filesize

    611B

    MD5

    bceb1b24038a079a8046db250ce33039

    SHA1

    95d2a21b00e5c127f023d2950afe052d2acba572

    SHA256

    d5237a1aac346aaff3cedaca0a567afa529b84a21676e4c7017c9f87cfb32d57

    SHA512

    182dc30cd1e600da9b7ea1ca12860fd82237b04de293899d19ab7edb8b2bcdb37e30d387bbdbb54acdbecdb8200f5a39d417abd91d2b4c11fd126a9e4d0f050e

  • C:\Users\Admin\AppData\Local\Temp\tmpCDC0.tmp
    Filesize

    1KB

    MD5

    f0194d140d5655b77acfe5c633086ba1

    SHA1

    8cd43646855f664a0ebcff81adb01c0681a9363e

    SHA256

    31fb428c38ed87cd3c15ca9020c0dd95120ff487e25a9886be7acf1c7c9c5e46

    SHA512

    abf16211ad68556400043b1a50b9753bbcdb25e433a1c7bc982afcd3c9bfa48207f063f90130d1f5fe1eb8c335ef06159d9fe740cff7f9e0cb6bca6d8e422a14

  • memory/2952-133-0x0000000000000000-mapping.dmp
  • memory/3568-130-0x0000000000BD0000-0x0000000000C90000-memory.dmp
    Filesize

    768KB

  • memory/3568-131-0x0000000007E40000-0x0000000007EDC000-memory.dmp
    Filesize

    624KB

  • memory/3568-132-0x0000000008200000-0x0000000008292000-memory.dmp
    Filesize

    584KB

  • memory/3684-135-0x0000000000000000-mapping.dmp
  • memory/3684-136-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/3684-138-0x0000000005640000-0x0000000005BE4000-memory.dmp
    Filesize

    5.6MB

  • memory/3684-139-0x0000000005D30000-0x0000000005D96000-memory.dmp
    Filesize

    408KB

  • memory/3684-140-0x0000000006380000-0x00000000063D0000-memory.dmp
    Filesize

    320KB