Analysis

  • max time kernel
    76s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    30-03-2023 14:06

General

  • Target

    7c69c8b13870df342b88a74c4593de7cdafd313516a613e6d2c358654989b197.exe

  • Size

    655KB

  • MD5

    a85b55466d5c83a3c9b988e1b098584c

  • SHA1

    df09609a0f86dc2e2970ca8f3df936649aea1a1f

  • SHA256

    7c69c8b13870df342b88a74c4593de7cdafd313516a613e6d2c358654989b197

  • SHA512

    d2011e7f04cbdce17c6779a0da8df55996235f4b526d316eb93cda2ec456e61cca1edb2b0cf9753ef698bbc85cf0271535b7e5be95fcfb23d3156589c5b267f1

  • SSDEEP

    12288:c7imOMt+1ZayM10SR9kO9evMVDg9y4mEzKrLg08kNRzg:c7imXqZayM10SBCMxg9y4mIILg08k

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5425216647:AAGbQiGXp5vgyVQu7hfyzrdaFXxZvpgWjrE/

Signatures

  • AgentTesla

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

  • 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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7c69c8b13870df342b88a74c4593de7cdafd313516a613e6d2c358654989b197.exe
    "C:\Users\Admin\AppData\Local\Temp\7c69c8b13870df342b88a74c4593de7cdafd313516a613e6d2c358654989b197.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1476
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ChQcFJSeQ.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1440
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ChQcFJSeQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE689.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:340
    • C:\Users\Admin\AppData\Local\Temp\7c69c8b13870df342b88a74c4593de7cdafd313516a613e6d2c358654989b197.exe
      "C:\Users\Admin\AppData\Local\Temp\7c69c8b13870df342b88a74c4593de7cdafd313516a613e6d2c358654989b197.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1104

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

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpE689.tmp
    Filesize

    1KB

    MD5

    877f4850af19f6bad438a340c72129fb

    SHA1

    6eaf59ef9aee74cb34655e13f5d6a76a3f591998

    SHA256

    5f1a3b304f3afc7d08c5c2ddf1f6c23e1fd62e17c940252f6a643cb49b29a581

    SHA512

    b5f41e16a3c31f879718b8dccdc83e4e8dd1fc627085fb17fe171470515fd70a10d845fab67af08df750853ab142233dff03b252cab43bcf7ee1f097e761117a

  • memory/1104-73-0x0000000000400000-0x0000000000430000-memory.dmp
    Filesize

    192KB

  • memory/1104-71-0x0000000000400000-0x0000000000430000-memory.dmp
    Filesize

    192KB

  • memory/1104-70-0x0000000000400000-0x0000000000430000-memory.dmp
    Filesize

    192KB

  • memory/1104-72-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/1104-69-0x0000000000400000-0x0000000000430000-memory.dmp
    Filesize

    192KB

  • memory/1104-78-0x0000000000E10000-0x0000000000E50000-memory.dmp
    Filesize

    256KB

  • memory/1104-68-0x0000000000400000-0x0000000000430000-memory.dmp
    Filesize

    192KB

  • memory/1104-80-0x0000000000E10000-0x0000000000E50000-memory.dmp
    Filesize

    256KB

  • memory/1104-77-0x0000000000400000-0x0000000000430000-memory.dmp
    Filesize

    192KB

  • memory/1104-75-0x0000000000400000-0x0000000000430000-memory.dmp
    Filesize

    192KB

  • memory/1440-79-0x0000000001D30000-0x0000000001D70000-memory.dmp
    Filesize

    256KB

  • memory/1476-55-0x0000000000690000-0x000000000069E000-memory.dmp
    Filesize

    56KB

  • memory/1476-54-0x0000000001080000-0x000000000112A000-memory.dmp
    Filesize

    680KB

  • memory/1476-58-0x00000000006A0000-0x00000000006AC000-memory.dmp
    Filesize

    48KB

  • memory/1476-57-0x0000000001000000-0x0000000001040000-memory.dmp
    Filesize

    256KB

  • memory/1476-65-0x0000000001040000-0x0000000001072000-memory.dmp
    Filesize

    200KB

  • memory/1476-56-0x0000000001000000-0x0000000001040000-memory.dmp
    Filesize

    256KB

  • memory/1476-59-0x0000000005680000-0x00000000056F6000-memory.dmp
    Filesize

    472KB