Analysis

  • max time kernel
    36s
  • max time network
    91s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    17-06-2023 01:30

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 2 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:624
    • 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:520

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\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

    Filesize

    62KB

    MD5

    3ac860860707baaf32469fa7cc7c0192

    SHA1

    c33c2acdaba0e6fa41fd2f00f186804722477639

    SHA256

    d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904

    SHA512

    d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

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

    Filesize

    304B

    MD5

    5abe0cd589cf62affa1dc2b584514c8c

    SHA1

    6a0804633c397f90ddb90b6a61e093da2a34a544

    SHA256

    06735e1b109b4aac28b95171d73b5ca25189b0fa0d8cc2f5b40b47d648fa9f67

    SHA512

    943a1301a4277756b8d627a2cf92baaeb7e902c67c8273e24d516d7c25a9346217b63ee421effe76b632d3571037ba6358eaea160e79ef0c8e0f8eaf916c8675

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

    Filesize

    304B

    MD5

    262df9367783a0df47c2510abb9372d2

    SHA1

    82b1e58194397bd4eca6257c528e0a2c3c28e16f

    SHA256

    e66556eaa730187769a03a0a5ed19d4728c7cdca57b80980d737427b99dab1fb

    SHA512

    8d6b9a8bec70ed64fc77e725cc29ab88946cb691d3715160e89c4e6a61e6f4a3af09a939fc71a57fbc5284ffcc18b5ba1e1ea4845daeb5f3c3155d509ead6b0f

  • C:\Users\Admin\AppData\Local\Temp\Cab1603.tmp

    Filesize

    61KB

    MD5

    fc4666cbca561e864e7fdf883a9e6661

    SHA1

    2f8d6094c7a34bf12ea0bbf0d51ee9c5bb7939a5

    SHA256

    10f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b

    SHA512

    c71f54b571e01f247f072be4bbebdf5d8410b67eb79a61e7e0d9853fe857ab9bd12f53e6af3394b935560178107291fc4be351b27deb388eba90ba949633d57d

  • C:\Users\Admin\AppData\Local\Temp\Tar17BF.tmp

    Filesize

    164KB

    MD5

    4ff65ad929cd9a367680e0e5b1c08166

    SHA1

    c0af0d4396bd1f15c45f39d3b849ba444233b3a2

    SHA256

    c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6

    SHA512

    f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

  • memory/520-1060-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/520-1080-0x0000000004A10000-0x0000000004A50000-memory.dmp

    Filesize

    256KB

  • memory/520-1061-0x0000000004A10000-0x0000000004A50000-memory.dmp

    Filesize

    256KB

  • memory/624-156-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-164-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-132-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-130-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-134-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-136-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-138-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-140-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-142-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-144-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-146-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-150-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-148-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-152-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-154-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-54-0x0000000000E70000-0x0000000000E78000-memory.dmp

    Filesize

    32KB

  • memory/624-158-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-160-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-166-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-128-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-162-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-168-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-170-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-172-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-174-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-176-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-178-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-180-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-182-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-186-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-184-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-823-0x0000000004C80000-0x0000000004CC0000-memory.dmp

    Filesize

    256KB

  • memory/624-1046-0x0000000000CC0000-0x0000000000D02000-memory.dmp

    Filesize

    264KB

  • memory/624-1047-0x00000000023A0000-0x00000000023EC000-memory.dmp

    Filesize

    304KB

  • memory/624-1056-0x0000000000670000-0x0000000000671000-memory.dmp

    Filesize

    4KB

  • memory/624-126-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-124-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-123-0x0000000005970000-0x0000000005A1F000-memory.dmp

    Filesize

    700KB

  • memory/624-122-0x0000000005970000-0x0000000005A26000-memory.dmp

    Filesize

    728KB

  • memory/624-55-0x0000000004C80000-0x0000000004CC0000-memory.dmp

    Filesize

    256KB