Analysis

  • max time kernel
    150s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-04-2023 11:26

General

  • Target

    31172a6da2d4b232acc28aac3e7345a428f73aa67430f5da1ad436ddc48eba33.exe

  • Size

    923KB

  • MD5

    5aa33c0ff774e15ceda6fb3f19f4bc9c

  • SHA1

    e473649407f5dce2f99f5ef8b26210f73f887292

  • SHA256

    31172a6da2d4b232acc28aac3e7345a428f73aa67430f5da1ad436ddc48eba33

  • SHA512

    59c9aa58c4fdf713deb339727f6faf2e1c64b6fdf4df8568eaa6216d236a521ed48f991cc839fd5f7b6856e68d30452dde57e692aad7d018547fd8fb4e614cf4

  • SSDEEP

    12288:EQwGNnSZcCyKxaP0AO9ee5dR6MOMeF2qSafV/wcE0yE9kkDpTQ7UpikAOROPrXkb:EQTgZc9U4OBPtSfVoe9kR709k

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    graceofgod@amenn

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\31172a6da2d4b232acc28aac3e7345a428f73aa67430f5da1ad436ddc48eba33.exe
    "C:\Users\Admin\AppData\Local\Temp\31172a6da2d4b232acc28aac3e7345a428f73aa67430f5da1ad436ddc48eba33.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4412
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZBvXLPcGcFJWf.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1852
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZBvXLPcGcFJWf" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBF68.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3872
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:4240

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ligjiqfe.hfz.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpBF68.tmp
    Filesize

    1KB

    MD5

    7d1d744e1dfb4ffd24ea5714383fcad4

    SHA1

    bf55fceac9e1783e0d9bff334fbbfd9c2dfa06b4

    SHA256

    a335fee6fdca9e679ba2c1dc951943b49de4a3dd2a718355e1bc9146ac685925

    SHA512

    a26d369efe89b347bd1d42a23fa2dbfb2d62dfbb743f71ec05c22475bdc2c5e0c4ce531dbad02a8f20d909bbd84f090dd273fc170aa2398a9e7b56385bd238d7

  • memory/1852-164-0x00000000067B0000-0x00000000067CE000-memory.dmp
    Filesize

    120KB

  • memory/1852-182-0x0000000003030000-0x0000000003040000-memory.dmp
    Filesize

    64KB

  • memory/1852-188-0x0000000007F10000-0x0000000007F18000-memory.dmp
    Filesize

    32KB

  • memory/1852-165-0x0000000003030000-0x0000000003040000-memory.dmp
    Filesize

    64KB

  • memory/1852-187-0x0000000007F30000-0x0000000007F4A000-memory.dmp
    Filesize

    104KB

  • memory/1852-166-0x0000000006E90000-0x0000000006EC2000-memory.dmp
    Filesize

    200KB

  • memory/1852-186-0x0000000007E20000-0x0000000007E2E000-memory.dmp
    Filesize

    56KB

  • memory/1852-146-0x0000000005AA0000-0x00000000060C8000-memory.dmp
    Filesize

    6.2MB

  • memory/1852-185-0x0000000007E50000-0x0000000007EE6000-memory.dmp
    Filesize

    600KB

  • memory/1852-150-0x0000000003030000-0x0000000003040000-memory.dmp
    Filesize

    64KB

  • memory/1852-149-0x0000000003030000-0x0000000003040000-memory.dmp
    Filesize

    64KB

  • memory/1852-183-0x0000000003030000-0x0000000003040000-memory.dmp
    Filesize

    64KB

  • memory/1852-152-0x0000000005820000-0x0000000005842000-memory.dmp
    Filesize

    136KB

  • memory/1852-153-0x00000000058C0000-0x0000000005926000-memory.dmp
    Filesize

    408KB

  • memory/1852-154-0x0000000005930000-0x0000000005996000-memory.dmp
    Filesize

    408KB

  • memory/1852-181-0x0000000007C60000-0x0000000007C6A000-memory.dmp
    Filesize

    40KB

  • memory/1852-180-0x0000000007C00000-0x0000000007C1A000-memory.dmp
    Filesize

    104KB

  • memory/1852-179-0x0000000008280000-0x00000000088FA000-memory.dmp
    Filesize

    6.5MB

  • memory/1852-144-0x0000000002FC0000-0x0000000002FF6000-memory.dmp
    Filesize

    216KB

  • memory/1852-167-0x0000000071480000-0x00000000714CC000-memory.dmp
    Filesize

    304KB

  • memory/1852-177-0x0000000006E70000-0x0000000006E8E000-memory.dmp
    Filesize

    120KB

  • memory/1852-178-0x000000007F810000-0x000000007F820000-memory.dmp
    Filesize

    64KB

  • memory/4240-184-0x0000000005370000-0x0000000005380000-memory.dmp
    Filesize

    64KB

  • memory/4240-192-0x0000000005370000-0x0000000005380000-memory.dmp
    Filesize

    64KB

  • memory/4240-193-0x0000000005370000-0x0000000005380000-memory.dmp
    Filesize

    64KB

  • memory/4240-147-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/4240-151-0x0000000005370000-0x0000000005380000-memory.dmp
    Filesize

    64KB

  • memory/4240-191-0x0000000006620000-0x0000000006670000-memory.dmp
    Filesize

    320KB

  • memory/4412-136-0x00000000076D0000-0x00000000076DA000-memory.dmp
    Filesize

    40KB

  • memory/4412-137-0x0000000007500000-0x0000000007510000-memory.dmp
    Filesize

    64KB

  • memory/4412-139-0x00000000090F0000-0x000000000918C000-memory.dmp
    Filesize

    624KB

  • memory/4412-135-0x0000000007510000-0x00000000075A2000-memory.dmp
    Filesize

    584KB

  • memory/4412-138-0x0000000007500000-0x0000000007510000-memory.dmp
    Filesize

    64KB

  • memory/4412-133-0x00000000005A0000-0x000000000068E000-memory.dmp
    Filesize

    952KB

  • memory/4412-134-0x0000000007A00000-0x0000000007FA4000-memory.dmp
    Filesize

    5.6MB