Analysis

  • max time kernel
    140s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/12/2023, 23:24

General

  • Target

    0c5bb3a86b134f359a9131b9ed6be470c59cd13ecad08ae73b44f1b924fd3943.exe

  • Size

    1.6MB

  • MD5

    bf76f3dfcae7d74a1109be8e293a2fd1

  • SHA1

    e31122ce247b32cf9538d03dfaa0c71b6b1e39e3

  • SHA256

    0c5bb3a86b134f359a9131b9ed6be470c59cd13ecad08ae73b44f1b924fd3943

  • SHA512

    5865736c9867120d85a0fa4334d1a3e19099d7dfeb10213577d78e1db1fd2c6c34b7f93cc389e1de58a35c5b66367ad6aed66541e9d65effd6e5056352696144

  • SSDEEP

    49152:80ceOGgUYYEmluRKYoFh4kGWusbQnIyDi1E1uonTKi/OjCCNG:1XOGgUYC4RKXFhrusbaDkE1u

Malware Config

Signatures

  • Drops startup file 1 IoCs
  • 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Looks up external IP address via web service 2 IoCs

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

  • Drops file in System32 directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0c5bb3a86b134f359a9131b9ed6be470c59cd13ecad08ae73b44f1b924fd3943.exe
    "C:\Users\Admin\AppData\Local\Temp\0c5bb3a86b134f359a9131b9ed6be470c59cd13ecad08ae73b44f1b924fd3943.exe"
    1⤵
    • Drops startup file
    • Accesses Microsoft Outlook profiles
    • Adds Run key to start application
    • Drops file in System32 directory
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:2072
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 HR" /sc HOURLY /rl HIGHEST
      2⤵
      • Creates scheduled task(s)
      PID:1468
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 LG" /sc ONLOGON /rl HIGHEST
      2⤵
      • Creates scheduled task(s)
      PID:4164
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2072 -s 1684
      2⤵
      • Program crash
      PID:5028
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
    1⤵
      PID:4780
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
      1⤵
        PID:4352
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2072 -ip 2072
        1⤵
          PID:4992
        • C:\Windows\system32\rundll32.exe
          "C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
          1⤵
            PID:2672
          • C:\Windows\System32\svchost.exe
            C:\Windows\System32\svchost.exe -k UnistackSvcGroup
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4540

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

                  Filesize

                  1.6MB

                  MD5

                  bf76f3dfcae7d74a1109be8e293a2fd1

                  SHA1

                  e31122ce247b32cf9538d03dfaa0c71b6b1e39e3

                  SHA256

                  0c5bb3a86b134f359a9131b9ed6be470c59cd13ecad08ae73b44f1b924fd3943

                  SHA512

                  5865736c9867120d85a0fa4334d1a3e19099d7dfeb10213577d78e1db1fd2c6c34b7f93cc389e1de58a35c5b66367ad6aed66541e9d65effd6e5056352696144

                • C:\Users\Admin\AppData\Local\Temp\grandUIApHcRYt0_GlhvU\information.txt

                  Filesize

                  3KB

                  MD5

                  e77106c4a0efb2f3192a96e173c105f0

                  SHA1

                  b946b1984417b6c8258e7c5cddb561dd8c4a42ce

                  SHA256

                  11737b5845642792354d42f6be5d6e2445848416e21233b806305d900a8c72bd

                  SHA512

                  2f32f460f57864c03ab5909d787a736c2ce949cc60a943d88a53f5f34558ee0daf40feda2365028e479131fcfa15c8cc0082d8dd3bdee6e71881209e781e0e60

                • C:\Users\Admin\AppData\Local\Temp\posterBoxpHcRYt0_GlhvU\QdX9ITDLyCRBWeb Data

                  Filesize

                  92KB

                  MD5

                  9ee081ca0d9c3cd479031e1ff265961b

                  SHA1

                  a2bfa65a2ddcd529a134ea08efd6965bcd0e5665

                  SHA256

                  2a260265cd76d10c19658a7db48e7f328aba6df399e28e2e73642d5904dd73b4

                  SHA512

                  6b9f28e80628042205df78d5393ba53ff9866ee25d92500a806055333f0fe3a93cb1516754b617c42a342d2852cb4f2cd37c849dbfd19bedb71aef5e642c33e6

                • C:\Users\Admin\AppData\Local\Temp\posterBoxpHcRYt0_GlhvU\ZunTSaNJLBVfWeb Data

                  Filesize

                  116KB

                  MD5

                  f70aa3fa04f0536280f872ad17973c3d

                  SHA1

                  50a7b889329a92de1b272d0ecf5fce87395d3123

                  SHA256

                  8d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8

                  SHA512

                  30675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84

                • memory/4540-120-0x0000026E68750000-0x0000026E68751000-memory.dmp

                  Filesize

                  4KB

                • memory/4540-123-0x0000026E68750000-0x0000026E68751000-memory.dmp

                  Filesize

                  4KB

                • memory/4540-114-0x0000026E68720000-0x0000026E68721000-memory.dmp

                  Filesize

                  4KB

                • memory/4540-115-0x0000026E68750000-0x0000026E68751000-memory.dmp

                  Filesize

                  4KB

                • memory/4540-116-0x0000026E68750000-0x0000026E68751000-memory.dmp

                  Filesize

                  4KB

                • memory/4540-117-0x0000026E68750000-0x0000026E68751000-memory.dmp

                  Filesize

                  4KB

                • memory/4540-118-0x0000026E68750000-0x0000026E68751000-memory.dmp

                  Filesize

                  4KB

                • memory/4540-119-0x0000026E68750000-0x0000026E68751000-memory.dmp

                  Filesize

                  4KB

                • memory/4540-82-0x0000026E60040000-0x0000026E60050000-memory.dmp

                  Filesize

                  64KB

                • memory/4540-121-0x0000026E68750000-0x0000026E68751000-memory.dmp

                  Filesize

                  4KB

                • memory/4540-122-0x0000026E68750000-0x0000026E68751000-memory.dmp

                  Filesize

                  4KB

                • memory/4540-98-0x0000026E60140000-0x0000026E60150000-memory.dmp

                  Filesize

                  64KB

                • memory/4540-124-0x0000026E68750000-0x0000026E68751000-memory.dmp

                  Filesize

                  4KB

                • memory/4540-125-0x0000026E68370000-0x0000026E68371000-memory.dmp

                  Filesize

                  4KB

                • memory/4540-126-0x0000026E68360000-0x0000026E68361000-memory.dmp

                  Filesize

                  4KB

                • memory/4540-128-0x0000026E68370000-0x0000026E68371000-memory.dmp

                  Filesize

                  4KB

                • memory/4540-131-0x0000026E68360000-0x0000026E68361000-memory.dmp

                  Filesize

                  4KB

                • memory/4540-134-0x0000026E682A0000-0x0000026E682A1000-memory.dmp

                  Filesize

                  4KB

                • memory/4540-146-0x0000026E684A0000-0x0000026E684A1000-memory.dmp

                  Filesize

                  4KB

                • memory/4540-148-0x0000026E684B0000-0x0000026E684B1000-memory.dmp

                  Filesize

                  4KB

                • memory/4540-149-0x0000026E684B0000-0x0000026E684B1000-memory.dmp

                  Filesize

                  4KB

                • memory/4540-150-0x0000026E685C0000-0x0000026E685C1000-memory.dmp

                  Filesize

                  4KB