Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2714d3e9581102b…

MALICIOUS

PDF

56.5 KB Created: 2020-08-18 14:53:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a8ac09447873a0b736413f14c095f24b SHA-1: 176961fa8a974f3e1e35218b152aa8463fac73f8 SHA-256: f2714d3e9581102b204bf331722cec549156b4f14e0a3a922f28f99724c261b0
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. The document also exhibits characteristics of a PDF link farm, with numerous embedded URLs pointing to external resources. The primary malicious URL is a redirector designed to lead users to further malicious content, likely for phishing or malware distribution.

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=university+of+alabama+football+news+bleacher+report In PDF document text
    • http://nifegi.billymegawatt.com/uploads/1/3/1/4/131406082/zatevatupowesi.pdfIn PDF document text
    • http://mojuz.unitedmissionsofhope.org/uploads/1/3/0/8/130814328/riwopela_zimulolowuk_safasapo.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/1/0432/2990/5058/files/xuradutiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9385/9231/files/96991978252.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6618/6135/files/65943290048.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8986/3580/files/25759412293.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8568/5153/files/guzos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5265/2951/files/48587618731.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5082/6905/files/niroxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/febipak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5544/7202/files/78427681548.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nowivozepax.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005eee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EEE 6564 bytes
SHA-256: 9aa724aab4fa4c5d592435552918aa6d54b1b8ad28defa29e2151b6f0ce5b693
font_01_sfnt_off00006f5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F5E 5640 bytes
SHA-256: c1aec01a81b61411a63b0e172845eb1cb974e173588919a1c28a6fc7a9d81e86
font_02_sfnt_off00008271.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8271 5736 bytes
SHA-256: 9ae089f9bda0f301f49dec8737517060321ac5a6f311427d55fa63a3cf61554f
font_03_sfnt_off000096b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96B9 12508 bytes
SHA-256: c4abc1903ac1e945384324e3bbaf4f762879729babd9bc305c75836bf483081b
font_04_sfnt_off0000bf2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF2C 16036 bytes
SHA-256: 35d3440dae1ebc896564e4e6f70ea95aa3a30a1ac603c7fffbb21b68b8b72e2f