Analysis

  • max time kernel
    142s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20231023-en
  • resource tags

    arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
  • submitted
    08-12-2023 01:55

General

  • Target

    a331d8169961a13fabdff8a264ff22687770e49794d63b9ac526055c8c929b1f.exe

  • Size

    587KB

  • MD5

    1ec275d581b7efc115153bb6a8915ba5

  • SHA1

    869acb34500897d1d9ebe06bf3f52eeaeb8c1eaa

  • SHA256

    a331d8169961a13fabdff8a264ff22687770e49794d63b9ac526055c8c929b1f

  • SHA512

    001f23bea4fd2ae52fd88d01f1d9bf9539954ac3e02ae7b7dd0dcc9f57d1c9ac89f242a0128d2126313bd3099c40eb622516081298d98b2d05abdb805785d1c5

  • SSDEEP

    6144:O8LxB3Qx8ayrbordY+VxuOveqXd0N+UMq1zSvEFWcbqX7TZPTvV3AWgbyG1aSmWD:GxPgUrdJE0Wx+YWc871PTWbHfmWPYMf

Malware Config

Signatures

  • AgentTesla

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

  • Executes dropped EXE 2 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 1 IoCs
  • Looks up external IP address via web service 2 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).

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a331d8169961a13fabdff8a264ff22687770e49794d63b9ac526055c8c929b1f.exe
    "C:\Users\Admin\AppData\Local\Temp\a331d8169961a13fabdff8a264ff22687770e49794d63b9ac526055c8c929b1f.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2796
    • C:\Users\Admin\AppData\Local\Temp\aodoeww.exe
      "C:\Users\Admin\AppData\Local\Temp\aodoeww.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1484
      • C:\Users\Admin\AppData\Local\Temp\aodoeww.exe
        "C:\Users\Admin\AppData\Local\Temp\aodoeww.exe"
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2864

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

1
T1112

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

2
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\aodoeww.exe
    Filesize

    165KB

    MD5

    61489aebd8bfdeec13ef3861873f9e45

    SHA1

    7cbb9b36b807b4b79b7f17d7494f6de0ff38edfb

    SHA256

    7f782878abf2380b3fd7953a2eb73f52c7fb8f0ae80e83b4c613118e7d02d4f8

    SHA512

    6897a33996afa73c5f843f9089acef9ed59b812fd149befe044e191ead3f834a0a90ce09b36e498c8dc33a73d14ac3522724ffdf922bacf8082c595429e172a5

  • C:\Users\Admin\AppData\Local\Temp\aodoeww.exe
    Filesize

    165KB

    MD5

    61489aebd8bfdeec13ef3861873f9e45

    SHA1

    7cbb9b36b807b4b79b7f17d7494f6de0ff38edfb

    SHA256

    7f782878abf2380b3fd7953a2eb73f52c7fb8f0ae80e83b4c613118e7d02d4f8

    SHA512

    6897a33996afa73c5f843f9089acef9ed59b812fd149befe044e191ead3f834a0a90ce09b36e498c8dc33a73d14ac3522724ffdf922bacf8082c595429e172a5

  • C:\Users\Admin\AppData\Local\Temp\aodoeww.exe
    Filesize

    165KB

    MD5

    61489aebd8bfdeec13ef3861873f9e45

    SHA1

    7cbb9b36b807b4b79b7f17d7494f6de0ff38edfb

    SHA256

    7f782878abf2380b3fd7953a2eb73f52c7fb8f0ae80e83b4c613118e7d02d4f8

    SHA512

    6897a33996afa73c5f843f9089acef9ed59b812fd149befe044e191ead3f834a0a90ce09b36e498c8dc33a73d14ac3522724ffdf922bacf8082c595429e172a5

  • C:\Users\Admin\AppData\Local\Temp\aodoeww.exe
    Filesize

    165KB

    MD5

    61489aebd8bfdeec13ef3861873f9e45

    SHA1

    7cbb9b36b807b4b79b7f17d7494f6de0ff38edfb

    SHA256

    7f782878abf2380b3fd7953a2eb73f52c7fb8f0ae80e83b4c613118e7d02d4f8

    SHA512

    6897a33996afa73c5f843f9089acef9ed59b812fd149befe044e191ead3f834a0a90ce09b36e498c8dc33a73d14ac3522724ffdf922bacf8082c595429e172a5

  • C:\Users\Admin\AppData\Local\Temp\kjwkjigjuz.jpc
    Filesize

    333KB

    MD5

    96b2d3902a0e83e8566903c45773664b

    SHA1

    58fa09c32f35cfd8b31d0a53230fdfa184d9eede

    SHA256

    bf6daa91ecdf8ec351ab89424d323865fd8f5b2124a9f2b9954ffc4539a44033

    SHA512

    2c9ec68e765a1c677b7e4493dbd9105f0edf93052b2c4612ff64c0954fc455123e6871a712ffec04f1a3d7c1be9f6406eb9046056fbbf1a50ca0324cc8679f73

  • \Users\Admin\AppData\Local\Temp\aodoeww.exe
    Filesize

    165KB

    MD5

    61489aebd8bfdeec13ef3861873f9e45

    SHA1

    7cbb9b36b807b4b79b7f17d7494f6de0ff38edfb

    SHA256

    7f782878abf2380b3fd7953a2eb73f52c7fb8f0ae80e83b4c613118e7d02d4f8

    SHA512

    6897a33996afa73c5f843f9089acef9ed59b812fd149befe044e191ead3f834a0a90ce09b36e498c8dc33a73d14ac3522724ffdf922bacf8082c595429e172a5

  • \Users\Admin\AppData\Local\Temp\aodoeww.exe
    Filesize

    165KB

    MD5

    61489aebd8bfdeec13ef3861873f9e45

    SHA1

    7cbb9b36b807b4b79b7f17d7494f6de0ff38edfb

    SHA256

    7f782878abf2380b3fd7953a2eb73f52c7fb8f0ae80e83b4c613118e7d02d4f8

    SHA512

    6897a33996afa73c5f843f9089acef9ed59b812fd149befe044e191ead3f834a0a90ce09b36e498c8dc33a73d14ac3522724ffdf922bacf8082c595429e172a5

  • \Users\Admin\AppData\Local\Temp\aodoeww.exe
    Filesize

    165KB

    MD5

    61489aebd8bfdeec13ef3861873f9e45

    SHA1

    7cbb9b36b807b4b79b7f17d7494f6de0ff38edfb

    SHA256

    7f782878abf2380b3fd7953a2eb73f52c7fb8f0ae80e83b4c613118e7d02d4f8

    SHA512

    6897a33996afa73c5f843f9089acef9ed59b812fd149befe044e191ead3f834a0a90ce09b36e498c8dc33a73d14ac3522724ffdf922bacf8082c595429e172a5

  • memory/1484-16-0x0000000000400000-0x000000000042E000-memory.dmp
    Filesize

    184KB

  • memory/1484-9-0x0000000000400000-0x000000000042E000-memory.dmp
    Filesize

    184KB

  • memory/2864-13-0x0000000000400000-0x0000000000452000-memory.dmp
    Filesize

    328KB

  • memory/2864-17-0x0000000000400000-0x0000000000452000-memory.dmp
    Filesize

    328KB

  • memory/2864-18-0x0000000000400000-0x0000000000452000-memory.dmp
    Filesize

    328KB

  • memory/2864-19-0x0000000001D70000-0x0000000001DB2000-memory.dmp
    Filesize

    264KB

  • memory/2864-20-0x00000000741E0000-0x00000000748CE000-memory.dmp
    Filesize

    6.9MB

  • memory/2864-21-0x0000000001DC0000-0x0000000001E00000-memory.dmp
    Filesize

    256KB

  • memory/2864-22-0x0000000001DC0000-0x0000000001E00000-memory.dmp
    Filesize

    256KB

  • memory/2864-23-0x0000000001DC0000-0x0000000001E00000-memory.dmp
    Filesize

    256KB

  • memory/2864-25-0x00000000741E0000-0x00000000748CE000-memory.dmp
    Filesize

    6.9MB

  • memory/2864-27-0x0000000001DC0000-0x0000000001E00000-memory.dmp
    Filesize

    256KB