Analysis

  • max time kernel
    86s
  • max time network
    113s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    22-01-2021 10:43

General

  • Target

    DHL Details.exe

  • Size

    1.2MB

  • MD5

    e0ebf5297cd0ef368872846be220cb17

  • SHA1

    cec0bfec250fe5f031e90ff5aaf5b15c6216f222

  • SHA256

    5cd5db1f2bc06d7827e42e7e81a180b0abb3a937cd106ed0e3e2813833d3469b

  • SHA512

    28925c284fc98432ca99da64d1048fb596f3d8fb7c00006d06d7646b471bd4900476cc11337b63bf9d2fc1c9f2c2adf2a7532dba2cf546fea8c9183474b1bee3

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    server126.web-hosting.com
  • Port:
    587
  • Username:
    milli@emremetal.xyz
  • Password:
    TB@h;x2zl*5c

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    server126.web-hosting.com
  • Port:
    587
  • Username:
    milli@emremetal.xyz
  • Password:
    TB@h;x2zl*5c

Signatures

  • AgentTesla

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

  • AgentTesla Payload 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.

  • 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 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DHL Details.exe
    "C:\Users\Admin\AppData\Local\Temp\DHL Details.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4048
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TcqFzn" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2B08.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1892
    • C:\Users\Admin\AppData\Local\Temp\DHL Details.exe
      "C:\Users\Admin\AppData\Local\Temp\DHL Details.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2136

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

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\DHL Details.exe.log
    MD5

    90acfd72f14a512712b1a7380c0faf60

    SHA1

    40ba4accb8faa75887e84fb8e38d598dc8cf0f12

    SHA256

    20806822f0c130b340504132c1461b589261fbbc518e468f4f90733ab514cb86

    SHA512

    29dbf85e14e60868574cb4dc9bda83d3c229fb956733d8d2557f2475ee0e690ac9c2e72f31e02284996da6906ba2dbfa382a29b04c15a2406571d8ee19ad16b9

  • C:\Users\Admin\AppData\Local\Temp\tmp2B08.tmp
    MD5

    a8ae33d87a716a2a437272cb664b8f11

    SHA1

    870f8c47a9d36593ff536e1bcfddec208dc28ab4

    SHA256

    6ca18c62e50129767864538c915f2c23bd49c1cf62c0c429e5638c23568528fb

    SHA512

    70741f0b3f890eca567b728a7028ff84b1ed2f9e1c2fe430e2fda799cd1748d748d3cbe369602ea5ac7ba85e3f6bdb0e2fa6bdedc19b8a48f433881beae30d86

  • memory/1892-13-0x0000000000000000-mapping.dmp
  • memory/2136-18-0x0000000073820000-0x0000000073F0E000-memory.dmp
    Filesize

    6.9MB

  • memory/2136-23-0x0000000005230000-0x0000000005231000-memory.dmp
    Filesize

    4KB

  • memory/2136-28-0x0000000005231000-0x0000000005232000-memory.dmp
    Filesize

    4KB

  • memory/2136-25-0x0000000005A20000-0x0000000005A21000-memory.dmp
    Filesize

    4KB

  • memory/2136-24-0x00000000053C0000-0x00000000053C1000-memory.dmp
    Filesize

    4KB

  • memory/2136-16-0x00000000004610EE-mapping.dmp
  • memory/2136-15-0x0000000000400000-0x0000000000466000-memory.dmp
    Filesize

    408KB

  • memory/4048-6-0x0000000005A50000-0x0000000005A51000-memory.dmp
    Filesize

    4KB

  • memory/4048-5-0x00000000054B0000-0x00000000054B1000-memory.dmp
    Filesize

    4KB

  • memory/4048-12-0x00000000065F0000-0x0000000006690000-memory.dmp
    Filesize

    640KB

  • memory/4048-11-0x0000000006240000-0x0000000006263000-memory.dmp
    Filesize

    140KB

  • memory/4048-3-0x0000000000A10000-0x0000000000A11000-memory.dmp
    Filesize

    4KB

  • memory/4048-2-0x0000000073820000-0x0000000073F0E000-memory.dmp
    Filesize

    6.9MB

  • memory/4048-7-0x00000000055F0000-0x00000000055F1000-memory.dmp
    Filesize

    4KB

  • memory/4048-10-0x0000000005750000-0x0000000005751000-memory.dmp
    Filesize

    4KB

  • memory/4048-9-0x00000000054A0000-0x00000000054A1000-memory.dmp
    Filesize

    4KB

  • memory/4048-8-0x00000000057B0000-0x00000000057B1000-memory.dmp
    Filesize

    4KB