Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2e74c4ee10c62a3…

MALICIOUS

PDF

39.2 KB Created: 2020-08-18 21:21:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e1113007584a82e842c30fe529961c63 SHA-1: add54726fde6e1e8491c8b55f3bc373e35c67c06 SHA-256: a2e74c4ee10c62a3694a07dbf5663845a2f2ba71c1d5248d35ac3888f5cda862
222 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Berkheimer income tax forms' and includes the malicious URL, suggesting a lure for phishing or malware delivery. The presence of a call-to-action button and a callback lure further supports a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=berkheimer+income+tax+forms In PDF document text
    • http://files.hendersonbagelcompany.com/uploads/1/3/0/9/130969192/zubemozubaku-xomab.pdfIn PDF document text
    • http://kekomi.tracelearningcenter.com/uploads/1/3/1/6/131606289/koxozezeli.pdfIn PDF document text
    • http://files.blackcherubim.com/uploads/1/3/0/7/130776661/guvuromop-tetutoxarijopen-vorogokiwe-nawej.pdfIn PDF document text
    • http://files.panteeny-fertilizers.com/uploads/1/3/1/8/131871871/423692.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/1/0428/5222/1091/files/roxofip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9839/1196/files/ielts_band_9_general_writing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8693/7250/files/wijogom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6997/2392/files/46707443755.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7316/6744/files/pdf_biography_of_nelson_mandela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6011/8175/files/maths_formulas_for_class_10_ncert.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9356/5342/files/mivireme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/halogenos_caracteristicas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3998/0710/files/bahrain_duty_free_liquor_price_list.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

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005af4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AF4 5268 bytes
SHA-256: 86e421fc84073f5d2d2b04eb0d5e3fbf01d85a3f11e84cf41e5a05c1a6725fba
font_01_sfnt_off00006cb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CB7 10476 bytes
SHA-256: 5bfcbf82d5500e0cdf029445fcdc5bc53e9a664868985bbd36245d8fdcd5afb5

Open this report in the interactive analyzer, or submit your own file for analysis.