Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed60d23b46aebca2…

MALICIOUS

PDF

77.3 KB Created: 2021-03-28 21:35:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: cc101fd9bc025b18660008e4399a4f82 SHA-1: cfbfa9a709b76275561000585d4d7992d171e558 SHA-256: ed60d23b46aebca2e301a1a21f53ddd772bd46a52f028137c726091e739d9b8d
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous embedded URLs, many hosted on disposable domains, suggesting a link farm or phishing attempt. The ML classifier strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains text related to 'Autograph movie mp4 video songs', indicating a lure to entice users to click on the malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

Heuristics 4

  • 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://jumiwimov.ru/123?utm_term=autograph+movie+mp4+video+songs PDF link annotation
    • https://xalitizamer.weebly.com/uploads/1/3/4/8/134863297/5b03223368f.pdfIn PDF document text
    • https://cdn.sqhk.co/tefazaturar/Hgigfii/90888563456.pdfIn PDF document text
    • https://xomivumikeso.weebly.com/uploads/1/3/0/7/130774979/451911.pdfIn PDF document text
    • https://sivubatololux.weebly.com/uploads/1/3/4/8/134850937/dc11fab014fc4a7.pdfIn PDF document text
    • http://abzac.me/tolimumarugu83f0m.pdfIn PDF document text
    • https://bufasijo.weebly.com/uploads/1/3/2/7/132740378/sabuvebezot-rupedudika-xusipelanababo-jadibumabibu.pdfIn PDF document text
    • http://jisutuxoxaza.medianewsonline.com/42693240233.pdfIn PDF document text
    • http://pozijuza.scienceontheweb.net/economistas_liberales.pdfIn PDF document text
    • https://cdn.sqhk.co/xasurila/lVhf3GX/sirius_radio_top_40_hits_station.pdfIn PDF document text
    • https://cdn.sqhk.co/tovipovo/hche6ie/axis_football_league_hacked_unblocked.pdfIn PDF document text
    • http://didazema.mypressonline.com/97853106675.pdfIn PDF document text
    • https://jovofodofipepij.weebly.com/uploads/1/3/2/6/132682866/136253.pdfIn PDF document text
    • http://mitatizizuje.mypressonline.com/bayesian_networks_with_examples_in_r_download.pdfIn PDF document text
    • https://mitebisaxu.weebly.com/uploads/1/3/5/3/135395238/de7359fba.pdfIn PDF document text
    • https://zemomopefiku.weebly.com/uploads/1/3/4/6/134614162/litosobofagunox.pdfIn PDF document text
    • http://sungo1.space/7076167337hv23w.pdfIn PDF document text
    • http://gloslides.com/mexitajasetonubalewujomngv3u.pdfIn PDF document text
    • https://cdn.sqhk.co/wadalibituge/5heUCge/94137486649.pdfIn PDF document text
    • http://leree6.club/42952807749k9efh.pdfIn PDF document text
    • http://kupivse.xyz/x_ray_circuitpursh.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/32deb960-e1db-436c-b26d-773710f25fe9/26651931733.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/54957607-88d3-4891-9b79-a4998d250cc2/jetos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19fd9181-21d4-4336-8a7d-7ee1394b969e/28798723522.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9641c7c8-0054-4d05-85ef-89688b9f7bd0/maytag_centennial_dryer_manual_medc300bw0.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50352fb1-c5c5-44d8-900e-2e6db40eec27/85104744107.pdfIn PDF document text
    • http://kakasis.onlinewebshop.net/70408957854.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f016.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF016 5480 bytes
SHA-256: 58db6c48185718fe2dd62b8596bd4ab03318968b15f1da36ae241821bebe0f9d
font_01_sfnt_off000102a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102A0 10828 bytes
SHA-256: 1d4668dba8b3d61c9f6aa54fe2ac182987517db4f611101559ea0940e8be1303

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