Malicious PDF — malware analysis report

Static analysis result for SHA-256 eee204f59a2610fb…

MALICIOUS

PDF

41.3 KB Created: 2020-10-14 18:32:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 141485dfbd1a5d832c493df7ee18c75b SHA-1: 0985e095d874c806f0455c94a4ea07332798eccd SHA-256: eee204f59a2610fb20da198a0965449938e1ae0bda6ee5c3f2361108f6387646
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://gettraff.ru/pify?keyword=mediaeval+sinhalese+art+pdf In PDF document text
    • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/gosibokuvefuj.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/ratefunerod.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/wozumadaku-mukevewurovebu-nefebo.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/9276785.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/kadijamiruvinugeno.pdfIn PDF document text
    • https://site-1039560.mozfiles.com/files/1039560/97675067670.pdfIn PDF document text
    • https://site-1040174.mozfiles.com/files/1040174/66788663011.pdfIn PDF document text
    • https://site-1039688.mozfiles.com/files/1039688/23794777659.pdfIn PDF document text
    • https://site-1043332.mozfiles.com/files/1043332/jamipumerewewibumewudiri.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/vovofofaverun_sawivurovoj_nifawubazox.pdfIn PDF document text
    • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/9594994.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/ruxozukozuvazu.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/logape.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/9d220f96-1306-4406-a4d6-682b5baa36ed/14988987399.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fdb1591f-62b7-4f91-bffa-f1884cf404b5/xitonitotorowipewuxixidi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8773/3950/files/vw_sharan_2020_user_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/8247/4181/files/negligent_infliction_of_emotional_distress_complaint.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8134/3903/files/jimogumaridaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5427/7532/files/church_bulletin_board_ideas_for_summer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/5478/7477/files/ruzabafizozoladom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4593/6534/files/sipolefino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8591/2477/files/mickey_thompson_atz_p3_35x12.50r17.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/2536/1817/files/retrieving_my_yahoo_email_password.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0477/1525/4428/files/5379425192.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000057d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57D2 4872 bytes
SHA-256: 0ad3bee60b89abf7ff085bf96034462e001442cb8de4c640e9b95d19c11bf111
font_01_sfnt_off0000684e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x684E 9808 bytes
SHA-256: cd6748e81d69a64b021ad46c6c7ba14b8bbc9c734f80d793d0251555f937f83d
font_02_sfnt_off00008921.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8921 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34