Malicious PDF — malware analysis report

Static analysis result for SHA-256 84a8aa6656e92098…

MALICIOUS

PDF

44.7 KB Created: 2020-08-25 05:37:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c2f872c5a46e4881144c47b4bdf505e5 SHA-1: f91265122e16c69dd354e0303e266107e2ca20d1 SHA-256: 84a8aa6656e920981d31b88d0bef93a31fb8140397987e41e4c1055fbefc5fee
202 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm designed for SEO manipulation. The primary malicious URL, 'https://ttraff.ru/pify?keyword=ac+market+cracked+apk', is identified as a redirector, likely leading to the download of cracked software. The ML classifier strongly supports the malicious verdict.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=ac+market+cracked+apk In PDF document text
    • http://files.reflectivecollections.com/uploads/1/3/1/4/131438190/davorufuzigomarari.pdfIn PDF document text
    • http://files.cailenfu.com/uploads/1/3/1/4/131437444/rutez_wubusaxofab_kajali_zuwogor.pdfIn PDF document text
    • http://files.wolfememorials.com/uploads/1/3/1/0/131070792/539a6ee56.pdfIn PDF document text
    • http://files.mtmoriahlodge.org/uploads/1/3/1/6/131606260/fogufezuvuvo.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/1/0433/9249/9877/files/kolepemewokilizuvune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6119/8491/files/58666525337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/30198264185.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1331/5480/files/govus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8827/1777/files/how_to_cheat_and_win_quixlet_match.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2154/8194/files/38206510421.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9980/7126/files/pandora_music_hacked_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5511/9512/files/64497144183.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6503/3383/files/vanuda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0845/7877/files/debate_topics_for_esl_students.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 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69B5 5060 bytes
SHA-256: 0c8b6244fa1d9200a74ca1126a742debe21b1c26b07cb44822d98e87de64c434
font_01_sfnt_off00007ac3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AC3 1800 bytes
SHA-256: e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d
font_02_sfnt_off00008351.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8351 10024 bytes
SHA-256: f14c4fc0b46f2c03eabdeba931cdc594fa0f0505a95c199edfd1a4013b475b16

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