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Analysis

  • max time kernel
    135s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    11/10/2023, 10:24

General

  • Target

    aa3d40c34d88ebc024f798e3e5a720e6cd7f6f447cdfbbead1f0c5bba72d4312.exe

  • Size

    5.4MB

  • MD5

    380b17feab2c2dc51b7940a95295678e

  • SHA1

    d39bb6eabdf04e535737f77ef838f5ad6bdb4b6a

  • SHA256

    aa3d40c34d88ebc024f798e3e5a720e6cd7f6f447cdfbbead1f0c5bba72d4312

  • SHA512

    728c01575152a1b8637bba1db1078e3c66e8631351c18ec55c4356e26af1fcd16b5d9698058e4247b7e43c5090f173b19d81664b1c60b03b6e98cb3f6a278c3e

  • SSDEEP

    98304:c6te5FnoajcsPJRRCsA7J//OaHvQyqW9oe4+JOijZdMAuaKzG3gu5:c75ZxPJRRy7h/8yh13jZSAuaqGwC

Malware Config

Signatures

  • PrivateLoader

    PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Themida packer 15 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Looks up external IP address via web service 5 IoCs

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

  • Drops file in System32 directory 4 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aa3d40c34d88ebc024f798e3e5a720e6cd7f6f447cdfbbead1f0c5bba72d4312.exe
    "C:\Users\Admin\AppData\Local\Temp\aa3d40c34d88ebc024f798e3e5a720e6cd7f6f447cdfbbead1f0c5bba72d4312.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks computer location settings
    • Checks whether UAC is enabled
    • Drops file in System32 directory
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    PID:2416

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\CabF920.tmp

    Filesize

    61KB

    MD5

    f3441b8572aae8801c04f3060b550443

    SHA1

    4ef0a35436125d6821831ef36c28ffaf196cda15

    SHA256

    6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

    SHA512

    5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

  • C:\Users\Admin\AppData\Local\Temp\TarF942.tmp

    Filesize

    163KB

    MD5

    9441737383d21192400eca82fda910ec

    SHA1

    725e0d606a4fc9ba44aa8ffde65bed15e65367e4

    SHA256

    bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

    SHA512

    7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

  • memory/2416-16-0x000000013FA20000-0x0000000140839000-memory.dmp

    Filesize

    14.1MB

  • memory/2416-12-0x000000013FA20000-0x0000000140839000-memory.dmp

    Filesize

    14.1MB

  • memory/2416-8-0x0000000000070000-0x0000000000071000-memory.dmp

    Filesize

    4KB

  • memory/2416-9-0x000007FE80010000-0x000007FE80011000-memory.dmp

    Filesize

    4KB

  • memory/2416-10-0x0000000077330000-0x00000000774D9000-memory.dmp

    Filesize

    1.7MB

  • memory/2416-11-0x000000013FA20000-0x0000000140839000-memory.dmp

    Filesize

    14.1MB

  • memory/2416-17-0x000000013FA20000-0x0000000140839000-memory.dmp

    Filesize

    14.1MB

  • memory/2416-13-0x000000013FA20000-0x0000000140839000-memory.dmp

    Filesize

    14.1MB

  • memory/2416-14-0x000000013FA20000-0x0000000140839000-memory.dmp

    Filesize

    14.1MB

  • memory/2416-15-0x000000013FA20000-0x0000000140839000-memory.dmp

    Filesize

    14.1MB

  • memory/2416-7-0x000007FEFD350000-0x000007FEFD3BC000-memory.dmp

    Filesize

    432KB

  • memory/2416-0-0x000000013FA20000-0x0000000140839000-memory.dmp

    Filesize

    14.1MB

  • memory/2416-29-0x000000013FA20000-0x0000000140839000-memory.dmp

    Filesize

    14.1MB

  • memory/2416-19-0x000000013FA20000-0x0000000140839000-memory.dmp

    Filesize

    14.1MB

  • memory/2416-20-0x000000013FA20000-0x0000000140839000-memory.dmp

    Filesize

    14.1MB

  • memory/2416-21-0x000007FEFD350000-0x000007FEFD3BC000-memory.dmp

    Filesize

    432KB

  • memory/2416-18-0x000000013FA20000-0x0000000140839000-memory.dmp

    Filesize

    14.1MB

  • memory/2416-30-0x0000000077330000-0x00000000774D9000-memory.dmp

    Filesize

    1.7MB

  • memory/2416-6-0x000007FEFD350000-0x000007FEFD3BC000-memory.dmp

    Filesize

    432KB

  • memory/2416-1-0x000000013FA20000-0x0000000140839000-memory.dmp

    Filesize

    14.1MB

  • memory/2416-66-0x000000013FA20000-0x0000000140839000-memory.dmp

    Filesize

    14.1MB

  • memory/2416-91-0x000000013FA20000-0x0000000140839000-memory.dmp

    Filesize

    14.1MB

  • memory/2416-93-0x000007FEFD350000-0x000007FEFD3BC000-memory.dmp

    Filesize

    432KB

  • memory/2416-92-0x0000000077330000-0x00000000774D9000-memory.dmp

    Filesize

    1.7MB