Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    17/10/2026, 09:19

General

  • Target
    Croreplay_-_Billing_Report.exe
  • Size 3.1MB
  • Sample261017-labc5acy3k
  • SHA256 f211eb4e9b7cfab20d5e4b747a8b4b5a1a1f4aade39621a559c5715ec4fcea86
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Enumerates connected drives 3 TTPs 22 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 21 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Inno Setup is an open-source installation builder for Windows applications. 2 IoCs

    Inno Setup installer

  • Modifies Internet Explorer settings 1 TTPs 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\Croreplay_-_Billing_Report.exe
    "C:\Users\Admin\AppData\Local\Temp\Croreplay_-_Billing_Report.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4416
    • C:\Users\Admin\AppData\Local\Temp\is-3R990.tmp\Croreplay_-_Billing_Report.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-3R990.tmp\Croreplay_-_Billing_Report.tmp" /SL5="$110064,2371219,778240,C:\Users\Admin\AppData\Local\Temp\Croreplay_-_Billing_Report.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3292
      • C:\Users\Admin\AppData\Local\Temp\is-VIODU.tmp\7z.exe
        "C:\Users\Admin\AppData\Local\Temp\is-VIODU.tmp\7z.exe" x -y -aoa -o"\\?\C:\Users\Admin\AppData\Roaming\..\..\Contacts" "C:\Users\Admin\AppData\Local\Temp\is-VIODU.tmp\app_archive.7z"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of AdjustPrivilegeToken
        PID:1684
      • C:\Users\Admin\Contacts\crashreporter.exe
        "C:\Users\Admin\Contacts\crashreporter.exe"
        3⤵
        • Enumerates connected drives
        • Executes dropped EXE
        • Loads dropped DLL
        • Reads the TCP/IP host and domain name from the registry
        • Modifies Internet Explorer settings
        • Suspicious behavior: EnumeratesProcesses
        PID:2072
  • C:\Users\Admin\Contacts\crashreporter.exe
    "C:\Users\Admin\Contacts\crashreporter.exe"
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:4392
  • C:\Users\Admin\Contacts\crashreporter.exe
    C:\Users\Admin\Contacts\crashreporter.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:2348

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        Croreplay_-_Billing_Report.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\is-3R990.tmp\Croreplay_-_Billing_Report.tmp
        • Size 3.0MB
        • SHA256 03b3a39db4e3379f35964a7847055d937b21f926a41d484035c6e4a581c1b15d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7z.dll

        • Path C:\Users\Admin\AppData\Local\Temp\is-VIODU.tmp\7z.dll
        • Size 1.6MB
        • SHA256 c7c67fd318fb07d4c36e48e675327e2a4162e8cb9287dae1c4ff7d945a240fe7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        7z.exe

        • Path C:\Users\Admin\AppData\Local\Temp\is-VIODU.tmp\7z.exe
        • Size 463KB
        • SHA256 4a320727a2adddee00dc66ab06e5b330184ddfbf0899a0763b63aa65621f3879
        • MD5 SHA1 SHA512 SSDEEP TLSH

        app_archive.7z

        • Path C:\Users\Admin\AppData\Local\Temp\is-VIODU.tmp\app_archive.7z
        • Size 893KB
        • SHA256 2e21f79af83d4c26ad1a0b35f7839ed379c254cb749ae49801ee45dd494c3000
        • MD5 SHA1 SHA512 SSDEEP TLSH

        VCRUNTIME140_1.dll

        • Path C:\Users\Admin\Contacts\VCRUNTIME140_1.dll
        • Size 48KB
        • SHA256 1f2d41c4aa5db0bc33ebf7b66d72943a817d7ce6cbe880502a9403823633093f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        crashreporter.exe

        • Path C:\Users\Admin\Contacts\crashreporter.exe
        • Size 1.5MB
        • SHA256 46f1ee281af87f517fb0703c0fa057a98f604e69d58edd2625df47e6585143c2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        lib-strings.dll

        • Path C:\Users\Admin\Contacts\lib-strings.dll
        • Size 101KB
        • SHA256 b8335d156f505f169e3941365163f2db20b1e6755f88e395d1cce633d307f5b7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        msvcp140.dll

        • Path C:\Users\Admin\Contacts\msvcp140.dll
        • Size 544KB
        • SHA256 0f885b509a685d2bbfa652fed26b5fb31d88fbdab0a978c641d1c7b8aa460aa9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        unins000.dat

        • Path C:\Users\Admin\Contacts\unins000.dat
        • Size 5KB
        • SHA256 e8b4bb3519756bd09010bf1d44fa387d434af8a97133d9dec75d4a7d98687cf3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        vcruntime140.dll

        • Path C:\Users\Admin\Contacts\vcruntime140.dll
        • Size 121KB
        • SHA256 d5e4d9a3e835fa679450145d6a7d94e36573a509317111904d9b3712c30d9066
        • MD5 SHA1 SHA512 SSDEEP TLSH

        wxbase313u_vc_x64_custom.dll

        • Path C:\Users\Admin\Contacts\wxbase313u_vc_x64_custom.dll
        • Size 184KB
        • SHA256 6389cab959160e65297a39effb29c519c6c91b533050f20cb87d3052099f546e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        wxmsw313u_core_vc_x64_custom.dll

        • Path C:\Users\Admin\Contacts\wxmsw313u_core_vc_x64_custom.dll
        • Size 132KB
        • SHA256 3c6e305e5d1012bdf3021652a1325a54c7b3199303522664e90ad7fc460eb694
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2072-65-0x0000012A5D390000-0x0000012A5D3EA000-memory.dmp

        memory/2072-64-0x0000012A5D390000-0x0000012A5D3EA000-memory.dmp

        memory/2072-48-0x0000012A5B270000-0x0000012A5B272000-memory.dmp

        memory/2072-72-0x0000012A5D390000-0x0000012A5D3EA000-memory.dmp

        memory/2072-71-0x0000012A5D390000-0x0000012A5D3EA000-memory.dmp

        memory/2072-58-0x0000012A5CD80000-0x0000012A5CDA8000-memory.dmp

        memory/2072-60-0x0000012A5CD80000-0x0000012A5CDA8000-memory.dmp

        memory/2072-59-0x0000012A5CD80000-0x0000012A5CDA8000-memory.dmp

        memory/2072-61-0x0000012A5D340000-0x0000012A5D38E000-memory.dmp

        memory/2072-70-0x0000012A5D390000-0x0000012A5D3EA000-memory.dmp

        memory/2072-63-0x0000012A5D340000-0x0000012A5D38E000-memory.dmp

        memory/2072-62-0x0000012A5CD80000-0x0000012A5CDA8000-memory.dmp

        memory/2072-69-0x0000012A5CD80000-0x0000012A5CDA8000-memory.dmp

        memory/2072-66-0x0000012A5D390000-0x0000012A5D3EA000-memory.dmp

        memory/2072-67-0x0000012A5D390000-0x0000012A5D3EA000-memory.dmp

        memory/2072-68-0x0000012A5CD80000-0x0000012A5CDA8000-memory.dmp

        memory/3292-49-0x0000000000400000-0x0000000000705000-memory.dmp

        memory/3292-5-0x00000000008E0000-0x00000000008E1000-memory.dmp

        memory/4416-0-0x0000000000400000-0x00000000004CB000-memory.dmp

        memory/4416-50-0x0000000000400000-0x00000000004CB000-memory.dmp