Malicious PDF — malware analysis report

Static analysis result for SHA-256 11c7f2c670d8b32d…

MALICIOUS

PDF

56.2 KB Created: 2020-08-08 10:55:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4428026d7546b9c0b6f34793306745e0 SHA-1: 22721b53c6bf1cf940543e7f769d2635c5cfc953 SHA-256: 11c7f2c670d8b32d436fa741d325979d5603491b5d614632277a6a41b51b77e0
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) that is flagged as malicious. The document body, though heavily obfuscated, contains a URL that matches the redirector. This suggests the PDF is designed to lead users to malicious infrastructure, likely for phishing or malware delivery, masquerading as research material.

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.cc/pify?keyword=research+on+social+media+marketing+pdf In PDF document text
    • http://files.julieswientypianostudio.com/uploads/1/3/0/7/130738928/vefajamapawalufew.pdfIn PDF document text
    • http://bowum.kgsstone.co.uk/uploads/1/3/1/4/131406082/4315118.pdfIn PDF document text
    • http://pejix.lhccd.net/uploads/1/3/0/7/130739590/3640408.pdfIn PDF document text
    • http://soxajakom.theairconsulting.com/uploads/1/3/1/3/131380480/gurak.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/1/0437/6104/1559/files/lirupura.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8702/8641/files/kurikisipitisiba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2270/5055/files/94189389383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1030/9787/files/gemojegemopejotetuwijet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7446/2631/files/973561160.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7822/1973/files/dogilemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0524/6631/files/lupedopixopetugamatike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3997/3788/files/92702258159.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9411/4465/files/mubaponajafofogategu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8969/0773/files/xakesusoterewerojuwoku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0008/5160/files/todiwij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7664/9124/files/boss_gt_10_patches.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9931/6639/files/201648558.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lejozusuxawunulimedobina.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_off00008f56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F56 5428 bytes
SHA-256: 67cf29d4d10f979a76d23f6740a1198c107ff0a39059168606d957d6f54ccee3
font_01_sfnt_off0000a19b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA19B 10424 bytes
SHA-256: 682561eb307dc0f841120730531dc14c11c5eec833e9daaa17272b0f1b167a8c
font_02_sfnt_off0000c540.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC540 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34