Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/12/2023, 00:10

General

  • Target

    9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0.exe

  • Size

    1.6MB

  • MD5

    ed9548572a37b6fce0099e79dae82d83

  • SHA1

    f561a3def7cd1c56e0e705afa6d1abbee5c2b807

  • SHA256

    9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0

  • SHA512

    a4baffe90d97222cf86fcae1b5df1e2456c8999029f689ea824bbaf948396d969ce69d40fd9f1ac96086c112c86257acc58d4329f2c8b20074d1186e91f5791b

  • 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\9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0.exe
    "C:\Users\Admin\AppData\Local\Temp\9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0.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:4844
    • 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:656
    • 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:1860
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4844 -s 1712
      2⤵
      • Program crash
      PID:924
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
    1⤵
      PID:4500
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
      1⤵
        PID:900
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4844 -ip 4844
        1⤵
          PID:3348
        • C:\Windows\system32\rundll32.exe
          "C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
          1⤵
            PID:5016
          • C:\Windows\System32\svchost.exe
            C:\Windows\System32\svchost.exe -k UnistackSvcGroup
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4576

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

                  Filesize

                  1.6MB

                  MD5

                  ed9548572a37b6fce0099e79dae82d83

                  SHA1

                  f561a3def7cd1c56e0e705afa6d1abbee5c2b807

                  SHA256

                  9c1017bf865d7dc2ac174b9a7de5ce90ce19ae430662a4c55c7b1d18d4b5e7f0

                  SHA512

                  a4baffe90d97222cf86fcae1b5df1e2456c8999029f689ea824bbaf948396d969ce69d40fd9f1ac96086c112c86257acc58d4329f2c8b20074d1186e91f5791b

                • C:\Users\Admin\AppData\Local\Temp\grandUIAXRiK9hX_zAQZ_\information.txt

                  Filesize

                  3KB

                  MD5

                  b407522642223795e4a3414a304885e3

                  SHA1

                  5610c384647723e168fe95fffa996288e331d8cc

                  SHA256

                  b7c0c6ec641a6e99ca9278567ce20c9a8121f010be4276a64683628f7b033835

                  SHA512

                  90c196a9ca39a77725a07b67b43395c19f3d0792a77350d06807f65cac40b8b5fdfc84ad9e1b85f406cbb05fae3d853660b818c51b30e4c8dc82857c890ae09f

                • C:\Users\Admin\AppData\Local\Temp\posterBoxXRiK9hX_zAQZ_\QdX9ITDLyCRBWeb Data

                  Filesize

                  92KB

                  MD5

                  5bca7f96843d97e2c39afbb8b5f9865b

                  SHA1

                  e64666a5d705a768e2351621577a386400111251

                  SHA256

                  e25c46923271e687a972edfcf511d7685c24ce2e509a5b10d0ba4cd6f2bfeab2

                  SHA512

                  40771d495b407c0ede8ad3e5d8e77cf588a607426f0597f0c10a81ec7b2614f28a66a1c5ff36bf8bf6905bdc6b537d8cc5a749725adfc57f72ec3c9ee17f76d3

                • C:\Users\Admin\AppData\Local\Temp\posterBoxXRiK9hX_zAQZ_\ZunTSaNJLBVfWeb Data

                  Filesize

                  116KB

                  MD5

                  f70aa3fa04f0536280f872ad17973c3d

                  SHA1

                  50a7b889329a92de1b272d0ecf5fce87395d3123

                  SHA256

                  8d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8

                  SHA512

                  30675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84

                • memory/4576-120-0x00000245422E0000-0x00000245422E1000-memory.dmp

                  Filesize

                  4KB

                • memory/4576-123-0x00000245422E0000-0x00000245422E1000-memory.dmp

                  Filesize

                  4KB

                • memory/4576-114-0x00000245422B0000-0x00000245422B1000-memory.dmp

                  Filesize

                  4KB

                • memory/4576-115-0x00000245422E0000-0x00000245422E1000-memory.dmp

                  Filesize

                  4KB

                • memory/4576-116-0x00000245422E0000-0x00000245422E1000-memory.dmp

                  Filesize

                  4KB

                • memory/4576-117-0x00000245422E0000-0x00000245422E1000-memory.dmp

                  Filesize

                  4KB

                • memory/4576-118-0x00000245422E0000-0x00000245422E1000-memory.dmp

                  Filesize

                  4KB

                • memory/4576-119-0x00000245422E0000-0x00000245422E1000-memory.dmp

                  Filesize

                  4KB

                • memory/4576-82-0x0000024539C40000-0x0000024539C50000-memory.dmp

                  Filesize

                  64KB

                • memory/4576-121-0x00000245422E0000-0x00000245422E1000-memory.dmp

                  Filesize

                  4KB

                • memory/4576-122-0x00000245422E0000-0x00000245422E1000-memory.dmp

                  Filesize

                  4KB

                • memory/4576-98-0x0000024539D40000-0x0000024539D50000-memory.dmp

                  Filesize

                  64KB

                • memory/4576-124-0x00000245422E0000-0x00000245422E1000-memory.dmp

                  Filesize

                  4KB

                • memory/4576-125-0x0000024541F00000-0x0000024541F01000-memory.dmp

                  Filesize

                  4KB

                • memory/4576-126-0x0000024541EF0000-0x0000024541EF1000-memory.dmp

                  Filesize

                  4KB

                • memory/4576-128-0x0000024541F00000-0x0000024541F01000-memory.dmp

                  Filesize

                  4KB

                • memory/4576-131-0x0000024541EF0000-0x0000024541EF1000-memory.dmp

                  Filesize

                  4KB

                • memory/4576-134-0x00000245395F0000-0x00000245395F1000-memory.dmp

                  Filesize

                  4KB

                • memory/4576-146-0x0000024542030000-0x0000024542031000-memory.dmp

                  Filesize

                  4KB

                • memory/4576-148-0x0000024542040000-0x0000024542041000-memory.dmp

                  Filesize

                  4KB

                • memory/4576-149-0x0000024542040000-0x0000024542041000-memory.dmp

                  Filesize

                  4KB

                • memory/4576-150-0x0000024542150000-0x0000024542151000-memory.dmp

                  Filesize

                  4KB