Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a16a806d5a6c3e7…

MALICIOUS

PDF

92.8 KB Created: 2022-04-19 16:09:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-31
MD5: e111fa54cafd9afb69945aa060d8ea20 SHA-1: fc52c6aac610614e3afea53786ecd48dedd17d54 SHA-256: 5a16a806d5a6c3e7fd8760a75d011af0fe7a5fffeda4c441b9f2b53293fe14d8
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9957

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://yubit.co.za/YmrXLWy8?keyword=what%20do%20the%20different%20suits%20of%20cards%20mean PDF link annotation
    • https://niliwavinifof.weebly.com/uploads/1/3/4/6/134687551/39bd8ba25ea334.pdfIn PDF document text
    • https://musufofijadora.weebly.com/uploads/1/3/4/8/134888277/1fb7f2ce.pdfIn PDF document text
    • http://www.oloron-ste-marie.fr/Oloron/kcfinder/upload/files/fisifega.pdfIn PDF document text
    • https://dikugero.weebly.com/uploads/1/3/4/3/134356342/mapoto.pdfIn PDF document text
    • https://sepenunaxob.weebly.com/uploads/1/3/0/7/130776074/9f156ec14744742.pdfIn PDF document text
    • https://mawepalutolura.weebly.com/uploads/1/3/4/0/134040672/guzibamupas-mugokowatin-mobozuke-gekerekuzuze.pdfIn PDF document text
    • https://soregoba.weebly.com/uploads/1/3/0/7/130739918/7501371.pdfIn PDF document text
    • https://pemalerokefoge.weebly.com/uploads/1/3/1/6/131606165/0de8df79.pdfIn PDF document text
    • https://pofofeteb.weebly.com/uploads/1/3/2/6/132681268/nofinefojiwevu.pdfIn PDF document text
    • https://senesawepemij.weebly.com/uploads/1/3/7/5/137503152/dopobizota.pdfIn PDF document text
    • https://lufeziwupidel.weebly.com/uploads/1/3/5/3/135345985/1554058.pdfIn PDF document text
    • https://tokikagusiwa.weebly.com/uploads/1/3/4/0/134096322/5e7945592b683b6.pdfIn PDF document text
    • https://jizexukufi.weebly.com/uploads/1/3/4/1/134109318/5604265.pdfIn PDF document text
    • https://xutonipojoneri.weebly.com/uploads/1/3/4/6/134667901/dinonebos_biserevixu.pdfIn PDF document text
    • https://holcom-solar.com/webroot/img/files/4441956833.pdfIn PDF document text
    • http://tokyo-sanritsu.com/userfiles/file/82688974189.pdfIn PDF document text
    • https://xuwosanilenerev.weebly.com/uploads/1/3/4/9/134900173/64980a7e8524a6.pdfIn PDF document text
    • https://xovotirepotu.weebly.com/uploads/1/3/1/4/131412955/bulezavexelomev.pdfIn PDF document text
    • https://fipekonekuz.weebly.com/uploads/1/3/4/7/134742334/titukisuwajenux-bujepetub-foxevo-vufebawuz.pdfIn PDF document text
    • https://xujeloza.weebly.com/uploads/1/3/4/0/134096435/9954856.pdfIn PDF document text
    • http://sjanzee.nl/file/74271010849.pdfIn PDF document text
    • https://kobuzefejara.weebly.com/uploads/1/3/1/4/131437799/6919086.pdfIn PDF document text
    • https://bibutijelogoper.weebly.com/uploads/1/3/2/7/132740620/5cc1c37.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d8cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8CC 10788 bytes
SHA-256: 49a2a9754cedfb7913c8bf9ee66088a961c0805f272a3d3a7a60e2ecdcef05c7
font_01_sfnt_off0000f17b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF17B 20140 bytes
SHA-256: 13d7ed878e2f834380c82a77cf556932677e34f9e8064f708effb1586318a679
font_02_sfnt_off0001252a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1252A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_03_sfnt_off00013d3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13D3B 17824 bytes
SHA-256: fd555f1577e4d51caff7bc1040ec13827665d47ccde6c46e82fc4669866aebb4
font_04_sfnt_off00015953.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15953 1820 bytes
SHA-256: 52a53721e8c512b7a0463ca54dc310d697b540dd894b81feb610186114d17bc3