Analysis

  • max time kernel
    122s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    22-05-2024 01:33

General

  • Target

    ITEMS CATOLOG SLIDE.exe

  • Size

    937KB

  • MD5

    4a323d354ce4f623d28481674820af27

  • SHA1

    47c96244f4f6c5ba61b09d97694afbf16707cff8

  • SHA256

    9a40bb86b69f6c6702f4cef6b9b4c51c68d5923a239eaf6ed3029374d13ccee8

  • SHA512

    2f5cec2c419460af012bfc233222db3ba7ba64c2339ac4c2f6dca17377c7cdf4f0cfa4fbec47577f35fcbeee728724483d5e98357681261a9a7cb7675a89fcb3

  • SSDEEP

    12288:PMMbni72U8L4042zQ1WVeXFfJoPQ59ouW1md0PaLAJRCIYpu5ssoxJzNJbH7o:kMbni723L73/gXFxoYzcBVeNN7o

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.avtorska.com.mk
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    avtorska2014@

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • 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.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Looks up external IP address via web service 3 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Runs ping.exe 1 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 61 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ITEMS CATOLOG SLIDE.exe
    "C:\Users\Admin\AppData\Local\Temp\ITEMS CATOLOG SLIDE.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2004
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c ping 127.0.0.1 -n 9 > nul && REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "files" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\mail\file.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2884
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 9
        3⤵
        • Runs ping.exe
        PID:2312
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "files" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\mail\file.exe"
        3⤵
        • Adds Run key to start application
        PID:2684
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c ping 127.0.0.1 -n 12 > nul && copy "C:\Users\Admin\AppData\Local\Temp\ITEMS CATOLOG SLIDE.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\mail\file.exe" && ping 127.0.0.1 -n 12 > nul && "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\mail\file.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2256
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 12
        3⤵
        • Runs ping.exe
        PID:3068
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 12
        3⤵
        • Runs ping.exe
        PID:2660
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\mail\file.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\mail\file.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2520
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          4⤵
          • Adds Run key to start application
          • Modifies system certificate store
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2852

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

2
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Remote System Discovery

1
T1018

Collection

Data from Local System

2
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357
    Filesize

    1KB

    MD5

    a266bb7dcc38a562631361bbf61dd11b

    SHA1

    3b1efd3a66ea28b16697394703a72ca340a05bd5

    SHA256

    df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

    SHA512

    0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357
    Filesize

    242B

    MD5

    0e9e1dec783c9b8aa8cdbc1175bd9491

    SHA1

    ec0ec70c51fd128350f19435e484a7fb19fb3b79

    SHA256

    258322f36ac4ae5bb28a554c9b549bbc3a774f6b9ebcbe7145152e1c3245bd20

    SHA512

    92a0ec79aeca26304afb9aedb41e0a64aee862fc95d8961bfd8a7e449ae1407ec68c393af164c8ff38085c3a91b76317c6ab1ebbe66390fbf73eb66f81f0e752

  • C:\Users\Admin\AppData\Local\Temp\Tar3B7F.tmp
    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • \Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\mail\file.exe
    Filesize

    937KB

    MD5

    4a323d354ce4f623d28481674820af27

    SHA1

    47c96244f4f6c5ba61b09d97694afbf16707cff8

    SHA256

    9a40bb86b69f6c6702f4cef6b9b4c51c68d5923a239eaf6ed3029374d13ccee8

    SHA512

    2f5cec2c419460af012bfc233222db3ba7ba64c2339ac4c2f6dca17377c7cdf4f0cfa4fbec47577f35fcbeee728724483d5e98357681261a9a7cb7675a89fcb3

  • memory/2004-1-0x00000000054E0000-0x0000000005524000-memory.dmp
    Filesize

    272KB

  • memory/2004-0-0x0000000000DA0000-0x0000000000E90000-memory.dmp
    Filesize

    960KB

  • memory/2520-11-0x0000000001130000-0x0000000001220000-memory.dmp
    Filesize

    960KB

  • memory/2520-12-0x00000000007A0000-0x00000000007BA000-memory.dmp
    Filesize

    104KB

  • memory/2520-13-0x0000000000680000-0x0000000000686000-memory.dmp
    Filesize

    24KB

  • memory/2852-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2852-23-0x0000000000400000-0x0000000000444000-memory.dmp
    Filesize

    272KB

  • memory/2852-24-0x0000000000400000-0x0000000000444000-memory.dmp
    Filesize

    272KB

  • memory/2852-25-0x0000000000400000-0x0000000000444000-memory.dmp
    Filesize

    272KB

  • memory/2852-18-0x0000000000400000-0x0000000000444000-memory.dmp
    Filesize

    272KB

  • memory/2852-20-0x0000000000400000-0x0000000000444000-memory.dmp
    Filesize

    272KB

  • memory/2852-14-0x0000000000400000-0x0000000000444000-memory.dmp
    Filesize

    272KB

  • memory/2852-16-0x0000000000400000-0x0000000000444000-memory.dmp
    Filesize

    272KB