Analysis

  • max time kernel
    120s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20231025-en
  • resource tags

    arch:x64arch:x86image:win7-20231025-enlocale:en-usos:windows7-x64system
  • submitted
    01-11-2023 02:00

General

  • Target

    da4b24ebe1d17357f778a9947a8146fd9d7e88d1f64a65695fb245fbccc4269d.exe

  • Size

    575KB

  • MD5

    ac922ce39d4d2aaeab1cdc528ef2b7aa

  • SHA1

    a8c680465ec93dd06885a85baf84a860c06b11af

  • SHA256

    da4b24ebe1d17357f778a9947a8146fd9d7e88d1f64a65695fb245fbccc4269d

  • SHA512

    495de9b12123dfa0f497fc5bd1ba6b231a707a90b11bb8646909a0b63ba4cd800315e501fbd915a2f68a063f318a78676327436cc04fbfe059e713823d347de9

  • SSDEEP

    12288:MS4vdwKTNWuuRYqrggHp/bLf7daLBIlXSY4j+6qj9:aF7M0UJf7gtIlqjyj9

Malware Config

Signatures

  • Downloads MZ/PE file
  • Deletes itself 1 IoCs
  • 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.

  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\da4b24ebe1d17357f778a9947a8146fd9d7e88d1f64a65695fb245fbccc4269d.exe
    "C:\Users\Admin\AppData\Local\Temp\da4b24ebe1d17357f778a9947a8146fd9d7e88d1f64a65695fb245fbccc4269d.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2600
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\da4b24ebe1d17357f778a9947a8146fd9d7e88d1f64a65695fb245fbccc4269d.exe" & del "C:\ProgramData\*.dll"" & exit
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:2320
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 5
        3⤵
        • Delays execution with timeout.exe
        PID:1156

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • \ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • memory/2600-0-0x0000000000330000-0x0000000000331000-memory.dmp

    Filesize

    4KB

  • memory/2600-1-0x0000000001D80000-0x0000000001D9C000-memory.dmp

    Filesize

    112KB

  • memory/2600-2-0x0000000010000000-0x000000001022D000-memory.dmp

    Filesize

    2.2MB

  • memory/2600-3-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/2600-34-0x0000000000330000-0x0000000000331000-memory.dmp

    Filesize

    4KB

  • memory/2600-41-0x0000000010000000-0x000000001022D000-memory.dmp

    Filesize

    2.2MB

  • memory/2600-60-0x0000000010000000-0x000000001022D000-memory.dmp

    Filesize

    2.2MB