Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d179ec8357310c1…

MALICIOUS

PDF

56.3 KB Created: 2020-08-24 01:44:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1914cd486f390e5cc4dc7aebace6a636 SHA-1: a917f2f40ea69c77dadce7c94f66c25d4289ad7d SHA-256: 5d179ec8357310c110a640e3bfc2987917ebd83ee6b0fcf563dc795eae87096a
194 Risk Score

Malware Insights

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

This PDF file contains multiple embedded links, with a primary redirector pointing to `https://ttraff.com/pify?keyword=al+masry+al+youm+pdf`. The heuristic firings indicate this is a malicious redirector and part of an SEO link farm, likely used for phishing or distributing further malware. The ML classifier strongly supports the malicious nature of this PDF.

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=al+masry+al+youm+pdf In PDF document text
    • http://files.guysalvidge.com/uploads/1/3/1/4/131483281/bewapopedefak-dajog-wutevapot.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/1/0454/4344/8990/files/fopafomigonalufalobaro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7507/6258/files/lademamopo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3750/files/joxoxuvurasad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5443/0368/files/class_attendance_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0818/0895/files/thinking_with_type_2nd_revised_and_expanded_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/0230/1349/files/mythic_adventures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3876/7266/files/bergey_s_manual_of_determinative_bacteriology_volume_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4216/1319/files/11037385305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9153/2699/files/electronic_devices_vocabulary_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4433/8838/files/linear_harmonic_oscillator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2536/7193/files/87842434838.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8051/5745/files/canvas_noun_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7170/9092/files/33279145905.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006cf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CF4 4808 bytes
SHA-256: b67403f9a24271000dd973a9bc811612d2d2bfdfe0ad6379022d0af177cc0828
font_01_sfnt_off00007d40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D40 10744 bytes
SHA-256: 05355ba53245d81a20a92aa640c64174c5ed7dcc4684839f584404d36aa80242
font_02_sfnt_off0000a1e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA1E6 21288 bytes
SHA-256: b19ebede08b3e595687df26c01cf5bea83305628d0a8a4124e0aead02c80636a
font_03_sfnt_off0000c5da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5DA 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c