Analysis

  • max time kernel
    48s
  • max time network
    51s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    18-06-2023 11:04

General

  • Target

    5780663f3e32e0308caa2cc657ccdcaadf393f22d2c1c3c1f5afa9f55aa136bb.exe

  • Size

    6KB

  • MD5

    8402ed726c49025989f98d23ce9d7e3e

  • SHA1

    e5784d2999ab073773b65e7d3a10ab2bb3460ff0

  • SHA256

    5780663f3e32e0308caa2cc657ccdcaadf393f22d2c1c3c1f5afa9f55aa136bb

  • SHA512

    208fdd79dd0ff0a61a0dccc80ea718b6f6ef18151104d3d74753035e7ed2844facc07df1605af42dfbb6631971eff6e5ec4cecbbe42f93bef0e3c75d5c942ebc

  • SSDEEP

    96:gzTFJVQ7mAK9KgeRZskYuIH7dYYyWwRkvPzNt:gHa7m79ETSuIH7dYYyYR

Malware Config

Extracted

Family

purecrypter

C2

https://files.catbox.moe/6dlgj3.mp4

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot2100759405:AAFzA0s7LpNOhvzQJo2bUlDpzSqnB8ir69o/

Signatures

  • AgentTesla

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

  • PureCrypter

    PureCrypter is a .NET malware loader first seen in early 2021.

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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
  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5780663f3e32e0308caa2cc657ccdcaadf393f22d2c1c3c1f5afa9f55aa136bb.exe
    "C:\Users\Admin\AppData\Local\Temp\5780663f3e32e0308caa2cc657ccdcaadf393f22d2c1c3c1f5afa9f55aa136bb.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1676
    • C:\Users\Admin\AppData\Local\Temp\5780663f3e32e0308caa2cc657ccdcaadf393f22d2c1c3c1f5afa9f55aa136bb.exe
      C:\Users\Admin\AppData\Local\Temp\5780663f3e32e0308caa2cc657ccdcaadf393f22d2c1c3c1f5afa9f55aa136bb.exe
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1264

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    62KB

    MD5

    3ac860860707baaf32469fa7cc7c0192

    SHA1

    c33c2acdaba0e6fa41fd2f00f186804722477639

    SHA256

    d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904

    SHA512

    d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

  • C:\Users\Admin\AppData\Local\Temp\Cab77F1.tmp

    Filesize

    61KB

    MD5

    fc4666cbca561e864e7fdf883a9e6661

    SHA1

    2f8d6094c7a34bf12ea0bbf0d51ee9c5bb7939a5

    SHA256

    10f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b

    SHA512

    c71f54b571e01f247f072be4bbebdf5d8410b67eb79a61e7e0d9853fe857ab9bd12f53e6af3394b935560178107291fc4be351b27deb388eba90ba949633d57d

  • C:\Users\Admin\AppData\Local\Temp\Tar7B23.tmp

    Filesize

    164KB

    MD5

    4ff65ad929cd9a367680e0e5b1c08166

    SHA1

    c0af0d4396bd1f15c45f39d3b849ba444233b3a2

    SHA256

    c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6

    SHA512

    f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

  • memory/1264-1071-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1264-1073-0x0000000004ED0000-0x0000000004F10000-memory.dmp

    Filesize

    256KB

  • memory/1264-1072-0x0000000004ED0000-0x0000000004F10000-memory.dmp

    Filesize

    256KB

  • memory/1676-165-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-171-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-137-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-139-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-141-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-145-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-143-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-147-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-149-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-151-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-153-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-155-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-157-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-159-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-161-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-163-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-54-0x0000000000390000-0x0000000000398000-memory.dmp

    Filesize

    32KB

  • memory/1676-167-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-169-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-135-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-173-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-175-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-177-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-179-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-181-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-185-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-183-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-187-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-189-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-191-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-193-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-195-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-197-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-910-0x0000000004A10000-0x0000000004A50000-memory.dmp

    Filesize

    256KB

  • memory/1676-1057-0x0000000004B50000-0x0000000004B92000-memory.dmp

    Filesize

    264KB

  • memory/1676-1058-0x0000000005010000-0x000000000505C000-memory.dmp

    Filesize

    304KB

  • memory/1676-1060-0x0000000001E00000-0x0000000001E01000-memory.dmp

    Filesize

    4KB

  • memory/1676-134-0x0000000006590000-0x000000000663F000-memory.dmp

    Filesize

    700KB

  • memory/1676-133-0x0000000006590000-0x0000000006646000-memory.dmp

    Filesize

    728KB

  • memory/1676-55-0x0000000004A10000-0x0000000004A50000-memory.dmp

    Filesize

    256KB