Analysis

  • max time kernel
    147s
  • max time network
    149s
  • 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, 21:38

General

  • Target

    78507c299408a768740887adfcf41f5f8a2f75778aad29dbbfdc2b9ea47fbe85.exe

  • Size

    1.6MB

  • MD5

    c4001f889685c31ed11fe1da6760f2a6

  • SHA1

    6b2bcfb6925b43d44372b7155b4201927fb070fc

  • SHA256

    78507c299408a768740887adfcf41f5f8a2f75778aad29dbbfdc2b9ea47fbe85

  • SHA512

    d194fd9a7c17e471b048f1e341bb21789a5339d576200d59663feb20bf7d095bc54b8f0f3959bfc2e69fee7f8aebc8c09b226d3b42758c5ba3988c56e8bd0a36

  • 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\78507c299408a768740887adfcf41f5f8a2f75778aad29dbbfdc2b9ea47fbe85.exe
    "C:\Users\Admin\AppData\Local\Temp\78507c299408a768740887adfcf41f5f8a2f75778aad29dbbfdc2b9ea47fbe85.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:1040
    • 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:3992
    • 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:3860
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1040 -s 1692
      2⤵
      • Program crash
      PID:4228
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
    1⤵
      PID:3804
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
      1⤵
        PID:4336
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1040 -ip 1040
        1⤵
          PID:3840
        • C:\Windows\system32\rundll32.exe
          "C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
          1⤵
            PID:1040
          • C:\Windows\System32\svchost.exe
            C:\Windows\System32\svchost.exe -k UnistackSvcGroup
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:3596

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

                  Filesize

                  1.6MB

                  MD5

                  c4001f889685c31ed11fe1da6760f2a6

                  SHA1

                  6b2bcfb6925b43d44372b7155b4201927fb070fc

                  SHA256

                  78507c299408a768740887adfcf41f5f8a2f75778aad29dbbfdc2b9ea47fbe85

                  SHA512

                  d194fd9a7c17e471b048f1e341bb21789a5339d576200d59663feb20bf7d095bc54b8f0f3959bfc2e69fee7f8aebc8c09b226d3b42758c5ba3988c56e8bd0a36

                • C:\Users\Admin\AppData\Local\Temp\grandUIAbtyu2kHlbVt22\information.txt

                  Filesize

                  3KB

                  MD5

                  02dd66dbb19f249ecd856b4cb7c969e7

                  SHA1

                  3f3ab10bfa8ad9c758d0e352f182ce222e44eb9a

                  SHA256

                  01a25d9cc74586728db9ba128f35f434275975c67b372d31ffc0b038fb7877ef

                  SHA512

                  94a967742f8216aa260bc8316706692303894a2cf009578b562e9337d832abc0b92480052fe406eeb85aba3973192bcada4b3f19bbda2b9251f4497aa2b4333f

                • C:\Users\Admin\AppData\Local\Temp\posterBoxbtyu2kHlbVt22\QdX9ITDLyCRBWeb Data

                  Filesize

                  92KB

                  MD5

                  5bca7f96843d97e2c39afbb8b5f9865b

                  SHA1

                  e64666a5d705a768e2351621577a386400111251

                  SHA256

                  e25c46923271e687a972edfcf511d7685c24ce2e509a5b10d0ba4cd6f2bfeab2

                  SHA512

                  40771d495b407c0ede8ad3e5d8e77cf588a607426f0597f0c10a81ec7b2614f28a66a1c5ff36bf8bf6905bdc6b537d8cc5a749725adfc57f72ec3c9ee17f76d3

                • C:\Users\Admin\AppData\Local\Temp\posterBoxbtyu2kHlbVt22\ZunTSaNJLBVfWeb Data

                  Filesize

                  116KB

                  MD5

                  f70aa3fa04f0536280f872ad17973c3d

                  SHA1

                  50a7b889329a92de1b272d0ecf5fce87395d3123

                  SHA256

                  8d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8

                  SHA512

                  30675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84

                • memory/3596-120-0x00000201B2720000-0x00000201B2721000-memory.dmp

                  Filesize

                  4KB

                • memory/3596-123-0x00000201B2720000-0x00000201B2721000-memory.dmp

                  Filesize

                  4KB

                • memory/3596-114-0x00000201B26F0000-0x00000201B26F1000-memory.dmp

                  Filesize

                  4KB

                • memory/3596-115-0x00000201B2720000-0x00000201B2721000-memory.dmp

                  Filesize

                  4KB

                • memory/3596-116-0x00000201B2720000-0x00000201B2721000-memory.dmp

                  Filesize

                  4KB

                • memory/3596-117-0x00000201B2720000-0x00000201B2721000-memory.dmp

                  Filesize

                  4KB

                • memory/3596-118-0x00000201B2720000-0x00000201B2721000-memory.dmp

                  Filesize

                  4KB

                • memory/3596-119-0x00000201B2720000-0x00000201B2721000-memory.dmp

                  Filesize

                  4KB

                • memory/3596-82-0x00000201AA040000-0x00000201AA050000-memory.dmp

                  Filesize

                  64KB

                • memory/3596-121-0x00000201B2720000-0x00000201B2721000-memory.dmp

                  Filesize

                  4KB

                • memory/3596-122-0x00000201B2720000-0x00000201B2721000-memory.dmp

                  Filesize

                  4KB

                • memory/3596-98-0x00000201AA140000-0x00000201AA150000-memory.dmp

                  Filesize

                  64KB

                • memory/3596-124-0x00000201B2720000-0x00000201B2721000-memory.dmp

                  Filesize

                  4KB

                • memory/3596-125-0x00000201B2340000-0x00000201B2341000-memory.dmp

                  Filesize

                  4KB

                • memory/3596-126-0x00000201B2330000-0x00000201B2331000-memory.dmp

                  Filesize

                  4KB

                • memory/3596-128-0x00000201B2340000-0x00000201B2341000-memory.dmp

                  Filesize

                  4KB

                • memory/3596-131-0x00000201B2330000-0x00000201B2331000-memory.dmp

                  Filesize

                  4KB

                • memory/3596-134-0x00000201B2270000-0x00000201B2271000-memory.dmp

                  Filesize

                  4KB

                • memory/3596-146-0x00000201B2470000-0x00000201B2471000-memory.dmp

                  Filesize

                  4KB

                • memory/3596-148-0x00000201B2480000-0x00000201B2481000-memory.dmp

                  Filesize

                  4KB

                • memory/3596-149-0x00000201B2480000-0x00000201B2481000-memory.dmp

                  Filesize

                  4KB

                • memory/3596-150-0x00000201B2590000-0x00000201B2591000-memory.dmp

                  Filesize

                  4KB