Resubmissions

01-02-2023 17:02

230201-vj6p3aah39 10

01-02-2023 17:00

230201-vjf5eacg4s 10

01-02-2023 16:57

230201-vgbrxacg2y 10

Analysis

  • max time kernel
    91s
  • max time network
    164s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-02-2023 16:57

General

  • Target

    9dc5600bedda76a29aa0e33da951fc30.exe

  • Size

    504KB

  • MD5

    9dc5600bedda76a29aa0e33da951fc30

  • SHA1

    9daa8192ef8b03ee276de60e656a56b88ec2d074

  • SHA256

    e966cd1651a960bc88f3582b328d274b2cbf2b84d59df761cbcd1702c38d5a14

  • SHA512

    96e37c9a6342d09799138a97e1928d595aabf36ee5a250d7bba5c3397117a6bb0d19063cf305e1af6799aad6fbeb9257d429454340953203118fa288a0f74804

  • SSDEEP

    12288:8RFO4oYvuoQouswXH06WAx5HSbr8z9i7+pvdCWtO:8TO4UdrE6J4r8zw6Rsh

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    francode@newwinbelt-cn.com
  • Password:
    ROe!AB$3

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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
  • 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). Likely ransomware behaviour.

  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9dc5600bedda76a29aa0e33da951fc30.exe
    "C:\Users\Admin\AppData\Local\Temp\9dc5600bedda76a29aa0e33da951fc30.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1892
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\UDBgQhSevZPJlf.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2780
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UDBgQhSevZPJlf" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6968.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:312
    • C:\Users\Admin\AppData\Local\Temp\9dc5600bedda76a29aa0e33da951fc30.exe
      "C:\Users\Admin\AppData\Local\Temp\9dc5600bedda76a29aa0e33da951fc30.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4228

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

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp6968.tmp
    Filesize

    1KB

    MD5

    49803a392b10ba75773c2c7160b90a76

    SHA1

    ee3ec53537387adef255a847b544427168fb7a5a

    SHA256

    0eea5ab09e264bb9347e160c1215c6ba89cfe0072e508cf8d60564040aa2c89c

    SHA512

    2b721623b84ab02336e015274cba40a5d310056ba038bfcb49d54477d8c30ae069b5028eadc7810ffaba7c0d063f47d1d7ecffa86eba44f5742530758042b57b

  • memory/312-138-0x0000000000000000-mapping.dmp
  • memory/1892-133-0x0000000005B70000-0x0000000006114000-memory.dmp
    Filesize

    5.6MB

  • memory/1892-134-0x00000000055C0000-0x0000000005652000-memory.dmp
    Filesize

    584KB

  • memory/1892-135-0x0000000005570000-0x000000000557A000-memory.dmp
    Filesize

    40KB

  • memory/1892-136-0x0000000007D40000-0x0000000007DDC000-memory.dmp
    Filesize

    624KB

  • memory/1892-132-0x0000000000B50000-0x0000000000BD2000-memory.dmp
    Filesize

    520KB

  • memory/2780-144-0x0000000004920000-0x0000000004942000-memory.dmp
    Filesize

    136KB

  • memory/2780-148-0x0000000005F90000-0x0000000005FC2000-memory.dmp
    Filesize

    200KB

  • memory/2780-157-0x0000000006FE0000-0x0000000006FE8000-memory.dmp
    Filesize

    32KB

  • memory/2780-143-0x0000000004DB0000-0x00000000053D8000-memory.dmp
    Filesize

    6.2MB

  • memory/2780-156-0x0000000007000000-0x000000000701A000-memory.dmp
    Filesize

    104KB

  • memory/2780-137-0x0000000000000000-mapping.dmp
  • memory/2780-145-0x0000000004CC0000-0x0000000004D26000-memory.dmp
    Filesize

    408KB

  • memory/2780-146-0x0000000004D30000-0x0000000004D96000-memory.dmp
    Filesize

    408KB

  • memory/2780-147-0x00000000059B0000-0x00000000059CE000-memory.dmp
    Filesize

    120KB

  • memory/2780-139-0x0000000000850000-0x0000000000886000-memory.dmp
    Filesize

    216KB

  • memory/2780-149-0x00000000709D0000-0x0000000070A1C000-memory.dmp
    Filesize

    304KB

  • memory/2780-150-0x0000000005F70000-0x0000000005F8E000-memory.dmp
    Filesize

    120KB

  • memory/2780-151-0x0000000007300000-0x000000000797A000-memory.dmp
    Filesize

    6.5MB

  • memory/2780-152-0x0000000006CC0000-0x0000000006CDA000-memory.dmp
    Filesize

    104KB

  • memory/2780-153-0x0000000006D30000-0x0000000006D3A000-memory.dmp
    Filesize

    40KB

  • memory/2780-154-0x0000000006F40000-0x0000000006FD6000-memory.dmp
    Filesize

    600KB

  • memory/2780-155-0x0000000006EF0000-0x0000000006EFE000-memory.dmp
    Filesize

    56KB

  • memory/4228-142-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

  • memory/4228-141-0x0000000000000000-mapping.dmp
  • memory/4228-158-0x0000000006830000-0x00000000069F2000-memory.dmp
    Filesize

    1.8MB