Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a981e77efb74193…

MALICIOUS

PDF

44.1 KB Created: 2020-08-03 11:17:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c6f1d3867e486416cf004dff31e42a75 SHA-1: 42486b24bc4432c10b2e7268d0c7aecc85c49103 SHA-256: 1a981e77efb74193658c40d5627870fa567b789331a5bc155f55e57b1bde7a10
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The heuristic 'SE_REMOTE_SUPPORT_LURE' indicates the document's content is designed to trick the user into interacting with it, likely by clicking the malicious link under the pretext of obtaining software or support. The presence of a link farm further suggests an attempt to manipulate search engine results or distribute malicious content broadly.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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://ttraff.ru/pify?keyword=asus+multiframe+software In PDF document text
    • http://files.goldenstandardimport.com/uploads/1/3/2/7/132710732/mozakasolupeke.pdfIn PDF document text
    • http://files.ukerepublic.com/uploads/1/3/1/4/131483097/nijemupomo_gonoxikuve_libak_bupid.pdfIn PDF document text
    • http://files.funseekersrebel.com/uploads/1/3/0/8/130873810/cc303a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/49090326843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7025/9357/files/lukinanufugijegojab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5996/0218/files/5337650392.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6335/3250/files/xumizuxarupa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6997/1363/files/jidelaliweboru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0543/6323/files/32914134298.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6577/0135/files/sokomirulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8029/2254/files/halo_reach_armor_customization.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8564/4447/files/xibunixobavositubikapepaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6598/0581/files/73619706366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0062/7363/files/28302206615.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0354/3715/files/61086033663.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

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ce8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CE8 4992 bytes
SHA-256: 6f4f6601629873b65a84fe596ce443eef6260ddceca46f2d45f94706076ad09d
font_01_sfnt_off00007dd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DD7 11168 bytes
SHA-256: 751d102823a819246f94a87c12a8d86c84ad111d6b918f6ab443c3f3a149a468

Open this report in the interactive analyzer, or submit your own file for analysis.