Analysis

  • max time kernel
    121s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    01-10-2024 01:20

General

  • Target

    5ea66e4e338b5ded7b00ad1575010d7c1149341323a646069f3b00a518f300d5.exe

  • Size

    745KB

  • MD5

    fa367270d40ada68dd7be9a3ebe2bdf1

  • SHA1

    afd6f7b9822d0d3956e5e055d50451b23481df66

  • SHA256

    5ea66e4e338b5ded7b00ad1575010d7c1149341323a646069f3b00a518f300d5

  • SHA512

    c99c57ced780eead7c7478c0167b855b83dd40c35a2e1e22159c3ae77c2f12e01862fc722249e90c9f5ebd74b5a9e1565205c33094075e91103fdb848c49a510

  • SSDEEP

    12288:oX1nN018HO8PdTXyvFxTPV0gexASJVQ6tb4MjJl9+SoMMBAiK/JSmKRP2crA+XLz:cKOHOaTX+vVhFS7DV4QtdoMViqs/VrAc

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.fosna.net
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    (=8fPSH$KO_!

Signatures

  • AgentTesla

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • 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 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Looks up external IP address via web service 1 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).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 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 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5ea66e4e338b5ded7b00ad1575010d7c1149341323a646069f3b00a518f300d5.exe
    "C:\Users\Admin\AppData\Local\Temp\5ea66e4e338b5ded7b00ad1575010d7c1149341323a646069f3b00a518f300d5.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2172
    • 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\5ea66e4e338b5ded7b00ad1575010d7c1149341323a646069f3b00a518f300d5.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2888
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ejRAbgfUflKqo.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2912
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ejRAbgfUflKqo" /XML "C:\Users\Admin\AppData\Local\Temp\tmp60D5.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2728
    • C:\Users\Admin\AppData\Local\Temp\5ea66e4e338b5ded7b00ad1575010d7c1149341323a646069f3b00a518f300d5.exe
      "C:\Users\Admin\AppData\Local\Temp\5ea66e4e338b5ded7b00ad1575010d7c1149341323a646069f3b00a518f300d5.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1896

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp60D5.tmp

    Filesize

    1KB

    MD5

    8f34199ba584445bb8098a69bcdd838f

    SHA1

    60c0952d18fb77d7bbb43defe55b2ac837ec9330

    SHA256

    bd2f1a6b73bc695a5ec8fca34bc4c56e59c149e9f0995519c3b1542d2a4ca882

    SHA512

    3294acb263afa3688fc90fcc17aeaafaf1fe6f5f93815cd99b7e21f79be853310153e3959cdae7b9239566142caa7363d35b0d23a2c82cde010101f271d8a444

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\L9953CCRD3OVOH5JUU67.temp

    Filesize

    7KB

    MD5

    b06656395279d53fd8fe194953dc7893

    SHA1

    8a53c98f0aa5d61cecd7e1fc4bca43bbd53f8f8f

    SHA256

    964eac348ff0aec12bfe2e7a90648e81abda1f7075048bf5884ab6c7702b83a9

    SHA512

    62a0fce7c22d0590db1e8563737c3c56dea39cddfb457d42da46219e2863514da629ba7d8b4995f75f3654aff9a1ea49ef7d3161db99dd57324832a85b53c68b

  • memory/1896-30-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1896-24-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1896-20-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1896-22-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1896-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1896-29-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1896-32-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1896-26-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2172-1-0x0000000000E30000-0x0000000000EEE000-memory.dmp

    Filesize

    760KB

  • memory/2172-2-0x0000000074C60000-0x000000007534E000-memory.dmp

    Filesize

    6.9MB

  • memory/2172-0-0x0000000074C6E000-0x0000000074C6F000-memory.dmp

    Filesize

    4KB

  • memory/2172-7-0x0000000000570000-0x00000000005F4000-memory.dmp

    Filesize

    528KB

  • memory/2172-6-0x0000000074C60000-0x000000007534E000-memory.dmp

    Filesize

    6.9MB

  • memory/2172-3-0x0000000000D60000-0x0000000000E10000-memory.dmp

    Filesize

    704KB

  • memory/2172-5-0x0000000074C6E000-0x0000000074C6F000-memory.dmp

    Filesize

    4KB

  • memory/2172-4-0x0000000000390000-0x00000000003AE000-memory.dmp

    Filesize

    120KB

  • memory/2172-33-0x0000000074C60000-0x000000007534E000-memory.dmp

    Filesize

    6.9MB