Analysis

  • max time kernel
    17s
  • max time network
    114s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    18-01-2021 07:12

General

  • Target

    09009009000088.exe

  • Size

    871KB

  • MD5

    e9fe4e5f1d13e2bb32d7363362411333

  • SHA1

    f5a461c65e80402982f2953327b1b07b182a3dea

  • SHA256

    6800f5b370a3df8a367fdf29b81f596dc78b5d7b095e5c3c5a9cae0dac36efbc

  • SHA512

    98b5ba9fd71dfa036d190ec10405bd09343df6406d705a53c079558c55f226dc1413aef7805d79fe2873ab26e8b74b0ccd106e65fd45361f0d647c06839d0e7c

Malware Config

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger Payload 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • 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.

  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\09009009000088.exe
    "C:\Users\Admin\AppData\Local\Temp\09009009000088.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1668
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\921b312938f74b4684ea2d448339e069.xml"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1224
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\921b312938f74b4684ea2d448339e069.xml"
        3⤵
        • Creates scheduled task(s)
        PID:1376
    • C:\Users\Admin\AppData\Local\Temp\09009009000088.exe
      "C:\Users\Admin\AppData\Local\Temp\09009009000088.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1316
      • C:\Users\Admin\AppData\Local\Temp\bilgi snake 2021.exe
        "C:\Users\Admin\AppData\Local\Temp\bilgi snake 2021.exe" 0
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:520

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\921b312938f74b4684ea2d448339e069.xml
    MD5

    9313352a59e3b368ab4eb8173567c406

    SHA1

    fc776c28e3ae9bd5e68f25c2a4f6248126731370

    SHA256

    469d4994320f37196faca4de8ada85161a43dd42c9405b283bea5e4ea84c9a8d

    SHA512

    000f6edf387b4ea0f244003fad3f66be5eb1920012838ba3a19c3f2dcde973fce8450c8e556c22cc20f7a3a0980d735fb169ecfafd440993c9fe5b8875fc7462

  • C:\Users\Admin\AppData\Local\Temp\bilgi snake 2021.exe
    MD5

    e33e63bda6a3976ecadfa9ee6f096944

    SHA1

    68b683bb325ae9c21f471593f007c797a02dc497

    SHA256

    c2d3a6b20eb4bc377bf9be955b23615492786be0613373bfc7f440ab872a8142

    SHA512

    91b672e86e30804e7e632d79e78c99ac9a0ee7c8468ad9eecc555f15773bb535d430f0c39efa61d9afdec7bb3f05f97cd18126e6c16eb6b1036e131b8f256142

  • C:\Users\Admin\AppData\Local\Temp\bilgi snake 2021.exe
    MD5

    e33e63bda6a3976ecadfa9ee6f096944

    SHA1

    68b683bb325ae9c21f471593f007c797a02dc497

    SHA256

    c2d3a6b20eb4bc377bf9be955b23615492786be0613373bfc7f440ab872a8142

    SHA512

    91b672e86e30804e7e632d79e78c99ac9a0ee7c8468ad9eecc555f15773bb535d430f0c39efa61d9afdec7bb3f05f97cd18126e6c16eb6b1036e131b8f256142

  • \Users\Admin\AppData\Local\Temp\bilgi snake 2021.exe
    MD5

    e33e63bda6a3976ecadfa9ee6f096944

    SHA1

    68b683bb325ae9c21f471593f007c797a02dc497

    SHA256

    c2d3a6b20eb4bc377bf9be955b23615492786be0613373bfc7f440ab872a8142

    SHA512

    91b672e86e30804e7e632d79e78c99ac9a0ee7c8468ad9eecc555f15773bb535d430f0c39efa61d9afdec7bb3f05f97cd18126e6c16eb6b1036e131b8f256142

  • memory/520-14-0x0000000073C30000-0x000000007431E000-memory.dmp
    Filesize

    6.9MB

  • memory/520-11-0x0000000000000000-mapping.dmp
  • memory/520-15-0x0000000000030000-0x0000000000031000-memory.dmp
    Filesize

    4KB

  • memory/520-18-0x00000000044A0000-0x00000000044A1000-memory.dmp
    Filesize

    4KB

  • memory/1224-3-0x0000000000000000-mapping.dmp
  • memory/1316-4-0x000000000040104C-mapping.dmp
  • memory/1316-17-0x0000000000400000-0x0000000000467000-memory.dmp
    Filesize

    412KB

  • memory/1376-5-0x0000000000000000-mapping.dmp
  • memory/1668-2-0x0000000074B31000-0x0000000074B33000-memory.dmp
    Filesize

    8KB