Analysis

  • max time kernel
    87s
  • max time network
    90s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    22-01-2021 09:43

General

  • Target

    DHL Details.exe

  • Size

    1.1MB

  • MD5

    41b6de13a1a77f13859e7507cb7801d1

  • SHA1

    169255531a255c357293c87401f9da42d58f15a0

  • SHA256

    d395cb074c93aac76ff1dc501e202c61a86e062896593cb75161d3747d2577e9

  • SHA512

    c4976e9894e6e6e16ad400c48e80675c426db77db91a21339a4a806f0afbf16b65a942c3346752269c817f8bc9afc4c99eddcb4173a7c02814876afcfeaa24e0

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:644
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qKIXouo" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5AD3.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3448
    • 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:3360

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\tmp5AD3.tmp
    MD5

    676bbe3f0e34dd065e2c6daa94a3de93

    SHA1

    13187b9c98fb55007d705d5b7ed31777fc5ea918

    SHA256

    65782fd77c793171a15385a462d28e50d10d32586cb78eb66efba99a104b91ee

    SHA512

    b80e2e7a34e2fa777f2beda514cfa8d626da01fd3a93697ee64a6c3495653c46a0ca1849d61d823efaf2d7e5aea5f97a960c3ac22007fc93973235f7474a75c3

  • memory/644-3-0x0000000000F90000-0x0000000000F91000-memory.dmp
    Filesize

    4KB

  • memory/644-5-0x00000000059E0000-0x00000000059E1000-memory.dmp
    Filesize

    4KB

  • memory/644-6-0x0000000005F80000-0x0000000005F81000-memory.dmp
    Filesize

    4KB

  • memory/644-7-0x0000000005A80000-0x0000000005A81000-memory.dmp
    Filesize

    4KB

  • memory/644-8-0x0000000005CF0000-0x0000000005CF1000-memory.dmp
    Filesize

    4KB

  • memory/644-9-0x0000000005980000-0x0000000005981000-memory.dmp
    Filesize

    4KB

  • memory/644-10-0x0000000005B80000-0x0000000005B81000-memory.dmp
    Filesize

    4KB

  • memory/644-11-0x0000000005B20000-0x0000000005B43000-memory.dmp
    Filesize

    140KB

  • memory/644-12-0x0000000006780000-0x000000000681E000-memory.dmp
    Filesize

    632KB

  • memory/644-2-0x0000000073F80000-0x000000007466E000-memory.dmp
    Filesize

    6.9MB

  • memory/3360-18-0x0000000073F80000-0x000000007466E000-memory.dmp
    Filesize

    6.9MB

  • memory/3360-16-0x00000000004610EE-mapping.dmp
  • memory/3360-15-0x0000000000400000-0x0000000000466000-memory.dmp
    Filesize

    408KB

  • memory/3360-23-0x00000000057C0000-0x00000000057C1000-memory.dmp
    Filesize

    4KB

  • memory/3360-24-0x00000000054B0000-0x00000000054B1000-memory.dmp
    Filesize

    4KB

  • memory/3360-25-0x0000000005C60000-0x0000000005C61000-memory.dmp
    Filesize

    4KB

  • memory/3360-28-0x00000000054B1000-0x00000000054B2000-memory.dmp
    Filesize

    4KB

  • memory/3448-13-0x0000000000000000-mapping.dmp