Malicious PDF — malware analysis report

Static analysis result for SHA-256 1aec5ec02026ff3c…

MALICIOUS

PDF

43.7 KB Created: 2020-08-02 22:42:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 80e72c19c53b3471727da7d19a70438a SHA-1: 626fce89e4c2d3beef7b45720ad66f93cc6165b8 SHA-256: 1aec5ec02026ff3c1f51746fe0a8984ef9381d8249df52cbab3698dd3c18e6e5
202 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many of which point to a link farm hosted on Shopify. One critical heuristic indicates a malicious redirector link to 'ttraff.ru'. The document body also contains a call-to-action phrase, suggesting a social engineering lure to encourage clicks on these links. The primary malicious URL identified is 'https://ttraff.ru/pify?keyword=arabic+music+free+download'.

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=arabic+music+free+download In PDF document text
    • http://files.stevewanna.com/uploads/1/3/1/6/131637374/kalodizosodugikaka.pdfIn PDF document text
    • http://files.mikelahenrylowe.com/uploads/1/3/1/4/131438059/2426281.pdfIn PDF document text
    • http://files.livybella.com/uploads/1/3/1/3/131384127/regegejowezixu.pdfIn PDF document text
    • http://files.ottosconespoint.com/uploads/1/3/1/4/131437615/8494051.pdfIn PDF document text
    • http://files.kendylandfriendsfoundation.org/uploads/1/3/1/3/131384656/e5cf7a2.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://cdn.shopify.com/s/files/1/0432/2885/6487/files/pufan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0792/5664/files/iana_timezone_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7556/7777/files/werupejivalomegaxikasev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6950/4662/files/jibogedizuvamulukobegis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6910/2485/files/namadidojugidatememizapuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2762/6134/files/25912827985.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6066/6274/files/43810174399.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7578/8184/files/55292225529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3078/8758/files/tuwimimejukerogeseluv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6137/8212/files/163869107.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3939/0872/files/bst_insert_c.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_off0000601f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x601F 5192 bytes
SHA-256: 4a17bbcc44b960e6efa4ee1015d2a1b24b477290e461e0984fb83abdcf7d988f
font_01_sfnt_off000071ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71AE 10060 bytes
SHA-256: 49e665d4bd21832bbc808e5133f3d5d256b2a171ae7c3ef3fb0ad4adc353fbac
font_02_sfnt_off00009414.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9414 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333