Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac3641df901b4ed6…

MALICIOUS

PDF

42.8 KB Created: 2020-08-01 11:58:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 857bd966f504e3ac552d9aa4d09d7797 SHA-1: a89f313311986ae7ec306fb786fb3a46fd8dd9e8 SHA-256: ac3641df901b4ed6dbb5f1be29de2601d8a77f4bb7e2f9d17057573355d418c8
194 Risk Score

Malware Insights

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

The PDF file contains embedded links that are identified as malicious redirectors. The document body, though heavily obfuscated, contains text related to 'airlines' and 'airline documentation', suggesting a lure to trick users into clicking the malicious links. The primary malicious URL identified is ttraff.com, which is used in conjunction with a link farm hosted on Shopify. The file's purpose appears to be redirecting users to malicious infrastructure.

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://ttraff.com/pify?keyword=savesqlite%2528+airlines%252C+airline+documentation In PDF document text
    • http://files.angelicinfusionart.com/uploads/1/3/1/3/131382955/pobobob.pdfIn PDF document text
    • http://files.arizonalife.rocks/uploads/1/3/0/7/130776602/jamakagotu-zawizedepivow-kitixirebe.pdfIn PDF document text
    • http://files.dulwichmindfulness.co.uk/uploads/1/3/1/6/131606261/zonovoxanof.pdfIn PDF document text
    • http://files.drrobertwwalker.com/uploads/1/3/0/7/130775373/lujem.pdfIn PDF document text
    • http://files.lavalstgermain.com/uploads/1/3/0/7/130775866/5976637.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/1/0431/1141/5965/files/vimiwejofugofogaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0571/4338/files/sidawefogufemum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9437/4555/files/vaminakitokekev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5820/0725/files/68230527578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0086/3643/files/gebatulesebokir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1703/4134/files/18667578662.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8145/6023/files/turerovuwikizovavavikikuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6978/3720/files/79101675423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3592/6434/files/62491667231.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8370/3206/files/tudodunobaruxinujabape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5981/4306/files/kagumi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1167/8114/files/53400375954.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zejakepujubuk.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_off000067bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67BD 5508 bytes
SHA-256: 8319d2970dd028e328beecedec75858add0c1557b142c87665b4b63fd4089deb
font_01_sfnt_off00007a7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A7B 10252 bytes
SHA-256: 8cfedb039986309c39621e9816a518b968281f2644979a1c8ff7a17905360463