Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    05-05-2021 19:03

General

  • Target

    P.O.exe

  • Size

    207KB

  • MD5

    eb71efe60cabc2d6aa9a49a82a4ded77

  • SHA1

    c188402835e985adac142eee6e0b31fd4c0c0ae6

  • SHA256

    9b70fcd07ba7d3dcef17f3b28cf75e304840a67e8611dc149744215f8483066d

  • SHA512

    3654b1ff3b57ca883b6fc6d086a8c90654f3e59f2efbe7341677ac85216bc8c1d2bc448940081eb9852f10f43a51d71f4eeef05445e046b9726108f792bdc1c2

Score
10/10

Malware Config

Extracted

Family

xloader

Version

2.3

C2

http://www.onyxcomputing.com/u8nw/

Decoy

constructionjadams.com

organicwellnessfarm.com

beautiful.tours

medvows.com

foxparanormal.com

fsmxmc.com

graniterealestategroup.net

qgi1.com

astrologicsolutions.com

rafbar.com

bastiontools.net

emotist.com

stacyleets.com

bloodtypealpha.com

healtybenenfitsplus.com

vavadadoa3.com

chefbenhk.com

dotgz.com

xn--z4qm188e645c.com

ethyi.com

Signatures

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • Xloader Payload 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 60 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2984
    • C:\Users\Admin\AppData\Local\Temp\P.O.exe
      "C:\Users\Admin\AppData\Local\Temp\P.O.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1892
      • C:\Users\Admin\AppData\Local\Temp\P.O.exe
        "C:\Users\Admin\AppData\Local\Temp\P.O.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:1960
    • C:\Windows\SysWOW64\netsh.exe
      "C:\Windows\SysWOW64\netsh.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2564
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\P.O.exe"
        3⤵
          PID:1300

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • \Users\Admin\AppData\Local\Temp\nsk1506.tmp\b0xkyuw645iggtc.dll
      MD5

      2919e2af8bb7f84e49c7b8a2eeea5ce2

      SHA1

      6c039175895e89dbcebd2c6137704e10f7257fd4

      SHA256

      615a7c9635e83ef8fe9040d0f37b9f96fa28fbb9333cfd52a1ee3d74ef195904

      SHA512

      122c9afb6826b67501cf5cefa13bbb7a9a50fea3011662a767655ce545d3a3d999593c490dbf1ce9b632e759b2576a587c9ab48f1a2da5c3d410f92b05631650

    • memory/1300-124-0x0000000000000000-mapping.dmp
    • memory/1892-115-0x0000000000A70000-0x0000000000A72000-memory.dmp
      Filesize

      8KB

    • memory/1960-116-0x000000000041D0C0-mapping.dmp
    • memory/1960-118-0x00000000009E0000-0x0000000000D00000-memory.dmp
      Filesize

      3.1MB

    • memory/1960-117-0x0000000000400000-0x0000000000429000-memory.dmp
      Filesize

      164KB

    • memory/1960-119-0x00000000009B0000-0x00000000009C0000-memory.dmp
      Filesize

      64KB

    • memory/2564-122-0x00000000012D0000-0x00000000012EE000-memory.dmp
      Filesize

      120KB

    • memory/2564-123-0x0000000000F30000-0x0000000000F59000-memory.dmp
      Filesize

      164KB

    • memory/2564-121-0x0000000000000000-mapping.dmp
    • memory/2564-125-0x0000000003840000-0x0000000003B60000-memory.dmp
      Filesize

      3.1MB

    • memory/2564-126-0x00000000035F0000-0x000000000367F000-memory.dmp
      Filesize

      572KB

    • memory/2984-120-0x00000000057C0000-0x00000000058E4000-memory.dmp
      Filesize

      1.1MB

    • memory/2984-127-0x00000000058F0000-0x0000000005A09000-memory.dmp
      Filesize

      1.1MB