Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa1805c27dae3221…

MALICIOUS

PDF

152.1 KB Created: 2020-08-21 02:16:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 62c07417b1c3227c35d540e7dc249b0c SHA-1: 034f2bac714b53016113980fa8794983846e8857 SHA-256: aa1805c27dae32211f6f6ea95691dfb46049504934447ce3292fa51be392f375
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL, suggesting a lure to a malicious site. The primary intent appears to be directing the user to this URL, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • 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=us+address+format+apartment In PDF document text
    • http://files.apwcsa.ca/uploads/1/3/0/7/130776268/cf75227935.pdfIn PDF document text
    • http://lixekare.carolinadancecenter.com/uploads/1/3/1/3/131382243/52eb7c6a1ff0d49.pdfIn PDF document text
    • http://fepija.lollye.com/uploads/1/3/1/8/131857334/6977520.pdfIn PDF document text
    • http://kiwezez.jft3design.com/uploads/1/3/1/4/131454065/zubamovexamub-sepikaxelopesug.pdfIn PDF document text
    • http://files.utahclassicalconversations.com/uploads/1/3/0/7/130738666/27caeab8f485743.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/1/0436/4668/1248/files/la_noire_ps4_trophy_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1692/0996/files/foterimumapiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0160/9366/files/jobado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4494/4542/files/jazodox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4619/9711/files/22511701837.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8788/8535/files/96188849065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5588/1121/files/image_formation_by_concave_mirror.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2931/5239/files/muraluribiguzufemojukoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8368/5270/files/37928164417.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8181/7505/files/baritazebopoxujokoxuna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3885/0724/files/statistical_inference_garthwaite.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_007_off00023551.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x23551 18340 bytes
SHA-256: 00d1ce32df6aaa2e6747f08378bfb45699745d64be16ae71527efb3db245baf0
font_00_sfnt_off0001950a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1950A 26384 bytes
SHA-256: c24fefd6fea7987879aab68df173f0feec89f9f01d743c44383e6b70f4a5f9ad
font_01_sfnt_off0001e721.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E721 5144 bytes
SHA-256: 61c0fad6609b0246daf5ad1b76059c11a06b9084482589c6b4b1c7a17c83c527
font_02_sfnt_off0001f889.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1F889 21484 bytes
SHA-256: 72d1e232875e83ba0d6638788aee2ca4a18a4f44ab3be0d71c2da923663f280b