Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a4360e056d48d63…

MALICIOUS

PDF

40.2 KB Created: 2020-08-25 13:56:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b626eb4af6f52194f07178886aa62dba SHA-1: f6926138309f021860c42509e6132501b8bbce20 SHA-256: 5a4360e056d48d63441e6555d7c53f724b8d97b5e5f560309b6c8758347e29a3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm with numerous external links, many pointing to Shopify domains hosting PDF files, and a primary redirector URL. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM indicate that this document is designed to lead users to malicious infrastructure, likely for phishing or malware distribution. The embedded URL in the document body, 'https://ttraff.com/pify?keyword=bisaya+bible+apk+free', is a clear indicator of this malicious intent.

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=bisaya+bible+apk+free In PDF document text
    • http://files.themagictraveler.com/uploads/1/3/2/7/132740553/jejoketinenez.pdfIn PDF document text
    • http://bojeze.virtualmuseumofgeology.com/uploads/1/3/0/7/130775432/877c972.pdfIn PDF document text
    • http://files.adorote.org/uploads/1/3/2/6/132695554/nevibumerexet.pdfIn PDF document text
    • http://files.akrosdayunibers.com/uploads/1/3/0/8/130813461/7531819.pdfIn PDF document text
    • http://wizovem.thetweedinfocus.com/uploads/1/3/2/6/132681504/risezimufikalam.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/1/0433/4573/9941/files/marafozojezaxupepijozema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0949/9551/files/pixezosutulisijegenebula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9041/9620/files/75634054880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9805/3539/files/46605114868.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3963/8179/files/61405519778.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3638/5175/files/bubafofetajo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0925/3286/files/48814860117.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/2123/0233/files/17325711947.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9685/1111/files/database_testing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3279/7603/files/fast_android_emulator_for_low_end_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/2109/4311/files/59562868397.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_off00005aa4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AA4 5248 bytes
SHA-256: 432d64bae7c58f2680a6a624002c6ca20f03ecb7c33edde2426f4b48e0aeef1e
font_01_sfnt_off00006c94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C94 11708 bytes
SHA-256: 34a747825985a68db0f8ec7fa8cda15fbf9436896c6105676f1b1923e71b1db3