Analysis

  • max time kernel
    93s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-03-2024 01:28

General

  • Target

    1d4c77db2631d25a6fa5355f7bbf1254936c675a9618f35ecdd96fed46d113af.exe

  • Size

    740KB

  • MD5

    3c9cc76ad5198f10936b6046df83e938

  • SHA1

    737bc49c8350974cecbf59f7c8517460eb59dd6c

  • SHA256

    1d4c77db2631d25a6fa5355f7bbf1254936c675a9618f35ecdd96fed46d113af

  • SHA512

    e5c2f4d89fbda728854c8284ce5c2e622a0eca2d174233c038e888ca6c3e50d196027e6046845905b47dca1848b09132890c3975082a2d38571002386626f529

  • SSDEEP

    12288:sd1JsJ6SjV1Sh2iNwR+8hh/v//w1/+FJC9IwyuUItwGKjrCAXQiaex8S20k0nz3r:sdmw1GRHhtvABgC9IUtwGKjrCkQTMj2v

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.karapipe.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    elu8wTHZY5

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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).

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1d4c77db2631d25a6fa5355f7bbf1254936c675a9618f35ecdd96fed46d113af.exe
    "C:\Users\Admin\AppData\Local\Temp\1d4c77db2631d25a6fa5355f7bbf1254936c675a9618f35ecdd96fed46d113af.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2244
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\1d4c77db2631d25a6fa5355f7bbf1254936c675a9618f35ecdd96fed46d113af.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:780
    • C:\Users\Admin\AppData\Local\Temp\1d4c77db2631d25a6fa5355f7bbf1254936c675a9618f35ecdd96fed46d113af.exe
      "C:\Users\Admin\AppData\Local\Temp\1d4c77db2631d25a6fa5355f7bbf1254936c675a9618f35ecdd96fed46d113af.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3140

Network

MITRE ATT&CK Matrix ATT&CK v13

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

4
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\1d4c77db2631d25a6fa5355f7bbf1254936c675a9618f35ecdd96fed46d113af.exe.log
    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rrhpxszi.uup.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/780-23-0x0000000005AC0000-0x0000000005B26000-memory.dmp
    Filesize

    408KB

  • memory/780-54-0x00000000075B0000-0x00000000075BA000-memory.dmp
    Filesize

    40KB

  • memory/780-34-0x0000000006210000-0x000000000622E000-memory.dmp
    Filesize

    120KB

  • memory/780-33-0x0000000005E30000-0x0000000006184000-memory.dmp
    Filesize

    3.3MB

  • memory/780-63-0x0000000075160000-0x0000000075910000-memory.dmp
    Filesize

    7.7MB

  • memory/780-60-0x0000000007860000-0x0000000007868000-memory.dmp
    Filesize

    32KB

  • memory/780-59-0x0000000007880000-0x000000000789A000-memory.dmp
    Filesize

    104KB

  • memory/780-58-0x0000000007780000-0x0000000007794000-memory.dmp
    Filesize

    80KB

  • memory/780-57-0x0000000007770000-0x000000000777E000-memory.dmp
    Filesize

    56KB

  • memory/780-56-0x0000000007740000-0x0000000007751000-memory.dmp
    Filesize

    68KB

  • memory/780-55-0x00000000077C0000-0x0000000007856000-memory.dmp
    Filesize

    600KB

  • memory/780-52-0x0000000007B80000-0x00000000081FA000-memory.dmp
    Filesize

    6.5MB

  • memory/780-15-0x00000000028A0000-0x00000000028D6000-memory.dmp
    Filesize

    216KB

  • memory/780-53-0x0000000007540000-0x000000000755A000-memory.dmp
    Filesize

    104KB

  • memory/780-17-0x0000000075160000-0x0000000075910000-memory.dmp
    Filesize

    7.7MB

  • memory/780-18-0x0000000002890000-0x00000000028A0000-memory.dmp
    Filesize

    64KB

  • memory/780-51-0x0000000006840000-0x00000000068E3000-memory.dmp
    Filesize

    652KB

  • memory/780-35-0x0000000006260000-0x00000000062AC000-memory.dmp
    Filesize

    304KB

  • memory/780-21-0x0000000002890000-0x00000000028A0000-memory.dmp
    Filesize

    64KB

  • memory/780-22-0x0000000005240000-0x0000000005262000-memory.dmp
    Filesize

    136KB

  • memory/780-50-0x0000000002890000-0x00000000028A0000-memory.dmp
    Filesize

    64KB

  • memory/780-36-0x000000007F590000-0x000000007F5A0000-memory.dmp
    Filesize

    64KB

  • memory/780-48-0x00000000067E0000-0x00000000067FE000-memory.dmp
    Filesize

    120KB

  • memory/780-49-0x0000000002890000-0x00000000028A0000-memory.dmp
    Filesize

    64KB

  • memory/780-19-0x00000000052A0000-0x00000000058C8000-memory.dmp
    Filesize

    6.2MB

  • memory/780-38-0x0000000070E80000-0x0000000070ECC000-memory.dmp
    Filesize

    304KB

  • memory/780-37-0x0000000006800000-0x0000000006832000-memory.dmp
    Filesize

    200KB

  • memory/2244-9-0x0000000007C50000-0x0000000007CD2000-memory.dmp
    Filesize

    520KB

  • memory/2244-3-0x0000000004B50000-0x0000000004BE2000-memory.dmp
    Filesize

    584KB

  • memory/2244-0-0x00000000000A0000-0x000000000015C000-memory.dmp
    Filesize

    752KB

  • memory/2244-1-0x0000000075160000-0x0000000075910000-memory.dmp
    Filesize

    7.7MB

  • memory/2244-4-0x0000000004D30000-0x0000000004D40000-memory.dmp
    Filesize

    64KB

  • memory/2244-6-0x0000000004DE0000-0x0000000004E7C000-memory.dmp
    Filesize

    624KB

  • memory/2244-14-0x0000000075160000-0x0000000075910000-memory.dmp
    Filesize

    7.7MB

  • memory/2244-5-0x0000000004CF0000-0x0000000004CFA000-memory.dmp
    Filesize

    40KB

  • memory/2244-7-0x0000000004EB0000-0x0000000004EC2000-memory.dmp
    Filesize

    72KB

  • memory/2244-8-0x0000000004FD0000-0x0000000004FDC000-memory.dmp
    Filesize

    48KB

  • memory/2244-2-0x0000000005100000-0x00000000056A4000-memory.dmp
    Filesize

    5.6MB

  • memory/3140-20-0x00000000051D0000-0x00000000051E0000-memory.dmp
    Filesize

    64KB

  • memory/3140-10-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/3140-66-0x00000000051D0000-0x00000000051E0000-memory.dmp
    Filesize

    64KB

  • memory/3140-16-0x0000000005420000-0x0000000005486000-memory.dmp
    Filesize

    408KB

  • memory/3140-64-0x0000000006210000-0x0000000006260000-memory.dmp
    Filesize

    320KB

  • memory/3140-65-0x0000000075160000-0x0000000075910000-memory.dmp
    Filesize

    7.7MB

  • memory/3140-13-0x0000000075160000-0x0000000075910000-memory.dmp
    Filesize

    7.7MB