Malicious PDF — malware analysis report

Static analysis result for SHA-256 e49c4409b2eda79a…

MALICIOUS

PDF

43.8 KB Created: 2020-08-03 18:55:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 2181441e854221fa3d7b75d1c0956dfd SHA-1: 90a3469131f7c0fc9be16f75ca6b217ebe4a83d2 SHA-256: e49c4409b2eda79a1ef368c383e541e80da59a3ee641558dc4a52bbb3381be5c
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a link farm and a specific redirector link pointing to malicious infrastructure, suggesting a phishing or scam attempt. The document body, though garbled, contains text related to an 'authorization form' and mentions Marriott, aligning with a lure. The presence of a callback phone lure heuristic further supports a social engineering attack. No scripts were extracted, limiting the analysis of direct payload execution.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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=marriott+explore+authorization+form+pdf In PDF document text
    • http://files.hannahsfitnessandtraining.com/uploads/1/3/0/8/130814226/1049043.pdfIn PDF document text
    • http://files.vocasings.com/uploads/1/3/1/4/131406403/gupuj-radizuner-beleriz.pdfIn PDF document text
    • http://files.sirogioielli.com/uploads/1/3/1/1/131164202/saxalal_rebisifixujoma_pewiwubudexoku_belovifoxaxa.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/1/0434/9375/2997/files/xenatipemezivesovogowewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1292/2264/files/1963025868.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6913/7305/files/6282915966.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7365/9290/files/skyrim_honed_metal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9894/8255/files/musetoluzolezewud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2650/4086/files/92141407820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7727/0692/files/53250679934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2806/2109/files/zuforanajikexiga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6845/7122/files/81401343574.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3346/8839/files/fijokoduxumubowopulula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2066/5510/files/wudasokasazadijokodev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7519/0422/files/86185669101.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3217/2965/files/67831912961.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8105/6931/files/nodutuxosutamelefosuvar.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_off00005d79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D79 5108 bytes
SHA-256: c64caa809f06a7c67640033d4199de9495b679ceb3c88ef7f73cd379cf89e709
font_01_sfnt_off00006eb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EB7 10852 bytes
SHA-256: a909af5a326fb8f736b15a439ba60bd721814d7e4f250a6e5f37a9a62c005bc2
font_02_sfnt_off000093d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93D3 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333