Analysis

  • max time kernel
    159s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-05-2023 18:48

General

  • Target

    DHL-AWB 764312.exe

  • Size

    841KB

  • MD5

    a27033a4d5e25bf5a4844f18d8d1bd38

  • SHA1

    62eea27661ed94a48b8142fe87d049b03b9f1295

  • SHA256

    86d4a06ce584c3d67c982690c85a60d789d48293ef122c81c7ea4e19ab7c912d

  • SHA512

    94775dd4022c9d1be83308e3d6a0760ab4c6e0749179f2339ede2c5c2786995969f96950d3eac2813b6ae64651c784bb26ad32f3537bb586f39edb224b6374dd

  • SSDEEP

    12288:LZ/9WflU/9DWlN/OyRj+uIeAeDNnqWWaF7luSDCA11WHNdLk2W3:tylURUNmy9LDplqA7luhEw7gd

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5635409590:AAHInAR4dWLcsUes3TU8Nj2UQrEubKrXKLs/

Signatures

  • AgentTesla

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

  • Detects Redline Stealer samples 2 IoCs

    This rule detects the presence of Redline Stealer samples based on their unique strings.

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DHL-AWB 764312.exe
    "C:\Users\Admin\AppData\Local\Temp\DHL-AWB 764312.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2368
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\dZEyalBRQqTl.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4468
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dZEyalBRQqTl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9333.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3172
    • C:\Users\Admin\AppData\Local\Temp\DHL-AWB 764312.exe
      "C:\Users\Admin\AppData\Local\Temp\DHL-AWB 764312.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4104

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xdgfd52l.szn.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp9333.tmp

    Filesize

    1KB

    MD5

    7245bfa48781bf745ab7e63ab8be4483

    SHA1

    18b28e860ceb47ec3d26825a084fa0407e6572b7

    SHA256

    d1c6bbb2b5f40928623736ca7abd423ecd3ed1c28f1772b6ce9029a90adcdcd8

    SHA512

    69739d068c868b52338b5674295d1eecd095655d6e75580183fcebd5058243836d9b3e5f13f03edb1c1d9b23db2d84677f5c3dc7e4dc78261fdc94741b8b1b73

  • memory/2368-136-0x0000000005880000-0x0000000005890000-memory.dmp

    Filesize

    64KB

  • memory/2368-133-0x0000000000C90000-0x0000000000D68000-memory.dmp

    Filesize

    864KB

  • memory/2368-137-0x00000000061E0000-0x00000000061EA000-memory.dmp

    Filesize

    40KB

  • memory/2368-138-0x0000000005880000-0x0000000005890000-memory.dmp

    Filesize

    64KB

  • memory/2368-139-0x0000000006D80000-0x0000000006E1C000-memory.dmp

    Filesize

    624KB

  • memory/2368-135-0x0000000005720000-0x00000000057B2000-memory.dmp

    Filesize

    584KB

  • memory/2368-134-0x0000000005C10000-0x00000000061B4000-memory.dmp

    Filesize

    5.6MB

  • memory/4104-176-0x00000000073A0000-0x00000000073F0000-memory.dmp

    Filesize

    320KB

  • memory/4104-166-0x00000000057A0000-0x00000000057B0000-memory.dmp

    Filesize

    64KB

  • memory/4104-147-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/4104-150-0x00000000057A0000-0x00000000057B0000-memory.dmp

    Filesize

    64KB

  • memory/4104-151-0x0000000005820000-0x0000000005886000-memory.dmp

    Filesize

    408KB

  • memory/4468-154-0x0000000005840000-0x00000000058A6000-memory.dmp

    Filesize

    408KB

  • memory/4468-169-0x0000000006EA0000-0x0000000006ED2000-memory.dmp

    Filesize

    200KB

  • memory/4468-152-0x0000000005920000-0x0000000005F48000-memory.dmp

    Filesize

    6.2MB

  • memory/4468-148-0x0000000005260000-0x0000000005270000-memory.dmp

    Filesize

    64KB

  • memory/4468-164-0x0000000005260000-0x0000000005270000-memory.dmp

    Filesize

    64KB

  • memory/4468-165-0x0000000005260000-0x0000000005270000-memory.dmp

    Filesize

    64KB

  • memory/4468-145-0x00000000052B0000-0x00000000052E6000-memory.dmp

    Filesize

    216KB

  • memory/4468-167-0x0000000006270000-0x000000000628E000-memory.dmp

    Filesize

    120KB

  • memory/4468-168-0x0000000005260000-0x0000000005270000-memory.dmp

    Filesize

    64KB

  • memory/4468-153-0x00000000057A0000-0x00000000057C2000-memory.dmp

    Filesize

    136KB

  • memory/4468-170-0x00000000723F0000-0x000000007243C000-memory.dmp

    Filesize

    304KB

  • memory/4468-144-0x0000000005260000-0x0000000005270000-memory.dmp

    Filesize

    64KB

  • memory/4468-181-0x0000000006E80000-0x0000000006E9E000-memory.dmp

    Filesize

    120KB

  • memory/4468-182-0x000000007FB60000-0x000000007FB70000-memory.dmp

    Filesize

    64KB

  • memory/4468-183-0x0000000008220000-0x000000000889A000-memory.dmp

    Filesize

    6.5MB

  • memory/4468-184-0x0000000007BD0000-0x0000000007BEA000-memory.dmp

    Filesize

    104KB

  • memory/4468-185-0x0000000007C40000-0x0000000007C4A000-memory.dmp

    Filesize

    40KB

  • memory/4468-186-0x0000000005260000-0x0000000005270000-memory.dmp

    Filesize

    64KB

  • memory/4468-187-0x0000000007E60000-0x0000000007EF6000-memory.dmp

    Filesize

    600KB

  • memory/4468-188-0x000000007FB60000-0x000000007FB70000-memory.dmp

    Filesize

    64KB