Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    24/06/2022, 22:53

General

  • Target

    b7683441e42f706642877d1a92c5307d223b1e6195d463f1ad9332e7e6ac5a91.exe

  • Size

    4.5MB

  • MD5

    79d775433be505a57ae175f5e6f427af

  • SHA1

    32b9ac8255c3076841e658eabe581586ecdd8c8b

  • SHA256

    b7683441e42f706642877d1a92c5307d223b1e6195d463f1ad9332e7e6ac5a91

  • SHA512

    2c74529531c163ba9f768bf9aae97464aa5ddf2935c4085eb80d372a4e15d853bdfa46fc616b7b9b2e30730f4a484dfe3ba8b64188a3921faca589ffd379e7f7

Malware Config

Signatures

  • CryptBot

    A C++ stealer distributed widely in bundle with other software.

  • suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

    suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
  • Blocklisted process makes network request 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Identifies Wine through registry keys 2 TTPs 2 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • 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 NtSetInformationThreadHideFromDebugger 2 IoCs
  • Drops file in Program Files directory 18 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of FindShellTrayWindow 12 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b7683441e42f706642877d1a92c5307d223b1e6195d463f1ad9332e7e6ac5a91.exe
    "C:\Users\Admin\AppData\Local\Temp\b7683441e42f706642877d1a92c5307d223b1e6195d463f1ad9332e7e6ac5a91.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:1364
    • C:\Program Files (x86)\Ferr\SEDA\SX\bin\Setup.exe
      "C:\Program Files (x86)\Ferr\SEDA\SX\bin\Setup.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Identifies Wine through registry keys
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      PID:3148
    • C:\Windows\SysWOW64\CScript.exe
      "C:\Windows\system32\CScript.exe" "C:\Program Files (x86)\Ferr\SEDA\SX\bin\ipras.vbs" //e:vbscript //B //NOLOGO
      2⤵
      • Blocklisted process makes network request
      PID:2224
    • C:\Program Files (x86)\Ferr\SEDA\SX\bin\Setupres.exe
      "C:\Program Files (x86)\Ferr\SEDA\SX\bin\Setupres.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Checks computer location settings
      • Identifies Wine through registry keys
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      PID:4928

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files (x86)\Ferr\SEDA\SX\bin\Setup.exe

    Filesize

    2.2MB

    MD5

    b5861c96767caed4fce1473ac338d1bf

    SHA1

    c9575e657706a01a28aa63943f39018377a5dfe1

    SHA256

    883ecab1d18c6e8153b56541df2df4980a27f5faa93ba2b42ff1dd14a8f4c161

    SHA512

    388bb192a27442c80f0ece67ef5e43ec6e148e24aa4634a524d3e7ec3cbd78b11bd4a200d76610168efd52711af8e3d6b2773088f09630843d9cfd6a02ab2240

  • C:\Program Files (x86)\Ferr\SEDA\SX\bin\Setup.exe

    Filesize

    2.2MB

    MD5

    b5861c96767caed4fce1473ac338d1bf

    SHA1

    c9575e657706a01a28aa63943f39018377a5dfe1

    SHA256

    883ecab1d18c6e8153b56541df2df4980a27f5faa93ba2b42ff1dd14a8f4c161

    SHA512

    388bb192a27442c80f0ece67ef5e43ec6e148e24aa4634a524d3e7ec3cbd78b11bd4a200d76610168efd52711af8e3d6b2773088f09630843d9cfd6a02ab2240

  • C:\Program Files (x86)\Ferr\SEDA\SX\bin\Setupres.exe

    Filesize

    2.1MB

    MD5

    c9638374b6732d9756d9a6ae50061747

    SHA1

    7952f8225a6cf692ce226bfaf8112260e4ac2b71

    SHA256

    34d2e90229c1c3c41b931bb65ea015f023744543d915dcfeffe2328e32c27e8e

    SHA512

    428d4977300ba3f95905f655a93aaad89145e8c09a96491ad8142be18a6802294e735f9b3fe04845c5c80a3997275203d3a5861fc7e4cc185fb8eae19b2a0ffa

  • C:\Program Files (x86)\Ferr\SEDA\SX\bin\ipras.vbs

    Filesize

    126B

    MD5

    b802ff9244875f69db2fae0f78e92b10

    SHA1

    49385a89cd575894a29fbda969b99cc1f5cf8076

    SHA256

    a1b0cb16fb2ecd66fccf156024404801ad694056e8a596326c1b27b57d8eabe8

    SHA512

    609856415a7ae2b3e260f945f1c8a8d2a28884c202d37181bea948708918f24b42ae03f17dba1520fddc91b2f7a182b0b8f885f33ea6f81bb3ee4c72e4e9350e

  • C:\Users\Admin\AppData\Local\Temp\nsb64EA.tmp\UAC.dll

    Filesize

    14KB

    MD5

    adb29e6b186daa765dc750128649b63d

    SHA1

    160cbdc4cb0ac2c142d361df138c537aa7e708c9

    SHA256

    2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08

    SHA512

    b28adcccf0c33660fecd6f95f28f11f793dc9988582187617b4c113fb4e6fdad4cf7694cd8c0300a477e63536456894d119741a940dda09b7df3ff0087a7eada

  • C:\Users\Admin\AppData\Local\Temp\nsb64EA.tmp\nsExec.dll

    Filesize

    6KB

    MD5

    132e6153717a7f9710dcea4536f364cd

    SHA1

    e39bc82c7602e6dd0797115c2bd12e872a5fb2ab

    SHA256

    d29afce2588d8dd7bb94c00ca91cac0e85b80ffa6b221f5ffcb83a2497228eb2

    SHA512

    9aeb0b3051ce07fb9f03dfee7cea4a5e423425e48cb538173bd2a167817f867a30bd4d27d07875f27ca00031745b24547030b7f146660b049fa717590f1c77e1

  • memory/3148-138-0x0000000077800000-0x00000000779A3000-memory.dmp

    Filesize

    1.6MB

  • memory/3148-136-0x0000000000450000-0x000000000099F000-memory.dmp

    Filesize

    5.3MB

  • memory/3148-139-0x0000000000450000-0x000000000099F000-memory.dmp

    Filesize

    5.3MB

  • memory/3148-145-0x0000000077800000-0x00000000779A3000-memory.dmp

    Filesize

    1.6MB

  • memory/3148-146-0x0000000000450000-0x000000000099F000-memory.dmp

    Filesize

    5.3MB

  • memory/4928-142-0x0000000000400000-0x000000000092D000-memory.dmp

    Filesize

    5.2MB

  • memory/4928-143-0x0000000077800000-0x00000000779A3000-memory.dmp

    Filesize

    1.6MB

  • memory/4928-144-0x0000000000400000-0x000000000092D000-memory.dmp

    Filesize

    5.2MB

  • memory/4928-147-0x0000000000400000-0x000000000092D000-memory.dmp

    Filesize

    5.2MB

  • memory/4928-148-0x0000000000400000-0x000000000092D000-memory.dmp

    Filesize

    5.2MB