Analysis

  • max time kernel
    121s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    11-10-2023 23:00

General

  • Target

    2Elynyru.exe

  • Size

    1.7MB

  • MD5

    6c8965f1d56a93b0bf67780f7c2fa965

  • SHA1

    c3beaf2bf36e40c5e1afb3c0e879ae1d25f02922

  • SHA256

    52817df4b19ffc52e81384b3117888fc053326b9635152fcbd7ca62d00801887

  • SHA512

    6693d6851842c3693b4fb866e97de0c3e560a5c1776fab6ffae17af5c814b723f5284f756cdc396149645a61821a698548ef159dd424b85e5842d4d74cf84b22

  • SSDEEP

    49152:WBRmRJuZoLIEk0zZVACftmxN4akoFc0y6sFzxT:WZ/R0VAMmx/FldsdT

Malware Config

Signatures

  • Phemedrone

    An information and wallet stealer written in C#.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Identifies Wine through registry keys 2 TTPs 1 IoCs

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

  • 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 1 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2Elynyru.exe
    "C:\Users\Admin\AppData\Local\Temp\2Elynyru.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1672
  • C:\Windows\system32\wbem\WmiApSrv.exe
    C:\Windows\system32\wbem\WmiApSrv.exe
    1⤵
      PID:1192

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\CabCBF8.tmp

      Filesize

      61KB

      MD5

      f3441b8572aae8801c04f3060b550443

      SHA1

      4ef0a35436125d6821831ef36c28ffaf196cda15

      SHA256

      6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

      SHA512

      5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

    • C:\Users\Admin\AppData\Local\Temp\TarCC68.tmp

      Filesize

      163KB

      MD5

      9441737383d21192400eca82fda910ec

      SHA1

      725e0d606a4fc9ba44aa8ffde65bed15e65367e4

      SHA256

      bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

      SHA512

      7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

    • memory/1672-20-0x0000000075220000-0x000000007526A000-memory.dmp

      Filesize

      296KB

    • memory/1672-9-0x0000000003200000-0x0000000003240000-memory.dmp

      Filesize

      256KB

    • memory/1672-4-0x0000000075220000-0x000000007526A000-memory.dmp

      Filesize

      296KB

    • memory/1672-22-0x0000000074AB0000-0x000000007519E000-memory.dmp

      Filesize

      6.9MB

    • memory/1672-6-0x00000000012B0000-0x0000000001706000-memory.dmp

      Filesize

      4.3MB

    • memory/1672-25-0x0000000074400000-0x0000000074480000-memory.dmp

      Filesize

      512KB

    • memory/1672-8-0x00000000012B0000-0x0000000001706000-memory.dmp

      Filesize

      4.3MB

    • memory/1672-23-0x0000000070FE0000-0x0000000070FEE000-memory.dmp

      Filesize

      56KB

    • memory/1672-10-0x0000000075B10000-0x0000000075C2D000-memory.dmp

      Filesize

      1.1MB

    • memory/1672-11-0x0000000074910000-0x0000000074927000-memory.dmp

      Filesize

      92KB

    • memory/1672-12-0x0000000074400000-0x0000000074480000-memory.dmp

      Filesize

      512KB

    • memory/1672-13-0x00000000012B0000-0x0000000001706000-memory.dmp

      Filesize

      4.3MB

    • memory/1672-14-0x00000000743F0000-0x00000000743FB000-memory.dmp

      Filesize

      44KB

    • memory/1672-15-0x0000000075E90000-0x0000000075F80000-memory.dmp

      Filesize

      960KB

    • memory/1672-16-0x0000000075A40000-0x0000000075B0C000-memory.dmp

      Filesize

      816KB

    • memory/1672-18-0x0000000074230000-0x000000007423D000-memory.dmp

      Filesize

      52KB

    • memory/1672-17-0x0000000074260000-0x00000000742B2000-memory.dmp

      Filesize

      328KB

    • memory/1672-19-0x00000000712D0000-0x0000000071328000-memory.dmp

      Filesize

      352KB

    • memory/1672-0-0x00000000012B0000-0x0000000001706000-memory.dmp

      Filesize

      4.3MB

    • memory/1672-21-0x0000000077360000-0x0000000077387000-memory.dmp

      Filesize

      156KB

    • memory/1672-5-0x0000000075360000-0x0000000075369000-memory.dmp

      Filesize

      36KB

    • memory/1672-3-0x0000000075A40000-0x0000000075B0C000-memory.dmp

      Filesize

      816KB

    • memory/1672-7-0x0000000074AB0000-0x000000007519E000-memory.dmp

      Filesize

      6.9MB

    • memory/1672-26-0x00000000712D0000-0x0000000071328000-memory.dmp

      Filesize

      352KB

    • memory/1672-2-0x0000000075E90000-0x0000000075F80000-memory.dmp

      Filesize

      960KB

    • memory/1672-1-0x0000000077B60000-0x0000000077B62000-memory.dmp

      Filesize

      8KB

    • memory/1672-62-0x00000000012B0000-0x0000000001706000-memory.dmp

      Filesize

      4.3MB

    • memory/1672-63-0x0000000075220000-0x000000007526A000-memory.dmp

      Filesize

      296KB

    • memory/1672-64-0x0000000075360000-0x0000000075369000-memory.dmp

      Filesize

      36KB

    • memory/1672-65-0x0000000074230000-0x000000007423D000-memory.dmp

      Filesize

      52KB

    • memory/1672-66-0x0000000077360000-0x0000000077387000-memory.dmp

      Filesize

      156KB

    • memory/1672-67-0x0000000074AB0000-0x000000007519E000-memory.dmp

      Filesize

      6.9MB

    • memory/1672-68-0x0000000074910000-0x0000000074927000-memory.dmp

      Filesize

      92KB

    • memory/1672-69-0x0000000075B10000-0x0000000075C2D000-memory.dmp

      Filesize

      1.1MB

    • memory/1672-70-0x0000000074400000-0x0000000074480000-memory.dmp

      Filesize

      512KB

    • memory/1672-71-0x00000000743F0000-0x00000000743FB000-memory.dmp

      Filesize

      44KB

    • memory/1672-72-0x0000000074260000-0x00000000742B2000-memory.dmp

      Filesize

      328KB

    • memory/1672-73-0x0000000075E90000-0x0000000075F80000-memory.dmp

      Filesize

      960KB

    • memory/1672-75-0x00000000712D0000-0x0000000071328000-memory.dmp

      Filesize

      352KB

    • memory/1672-74-0x0000000075A40000-0x0000000075B0C000-memory.dmp

      Filesize

      816KB

    • memory/1672-76-0x0000000070FE0000-0x0000000070FEE000-memory.dmp

      Filesize

      56KB