Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce078d8b79b6c430…

MALICIOUS

PDF

34.7 KB Created: 2020-08-13 04:40:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d87dce4d9bf4053e984f9415be36bf2a SHA-1: 4ded240dab7b01245dc5cfb8adf6bb034c58df15 SHA-256: ce078d8b79b6c430019253bc2897c61ce25d214c0e7de609e174d57b7193e42d
172 Risk Score

Malware Insights

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

The PDF document is identified as malicious due to its structure, which resembles an image-only lure designed to trick users into clicking a link. The primary malicious URL, https://ttraff.com/wb?keyword=ford%20explorer%202013%20owners%20manual, is a redirector. The document also contains a large number of links to other PDFs hosted on Shopify, likely for SEO manipulation or to appear less suspicious. No scripts were extracted, but the PDF's design and the malicious redirector strongly indicate a phishing attempt.

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-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 34 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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/wb?keyword=ford%20explorer%202013%20owners%20manual
    • http://files.dvstash.com/uploads/1/3/1/4/131438557/1aa9c5f703cae9.pdf
    • http://resabal.hidalgobraccoitalianos.com/uploads/1/3/2/7/132712207/f954ac0c25af4e5.pdf
    • http://fudawi.portcitygymnastics.net/uploads/1/3/1/4/131406893/dugomenapezudifelede.pdf
    • https://cdn.shopify.com/s/files/1/0440/4104/4118/files/sufficient_velocity_forums.pdf
    • https://cdn.shopify.com/s/files/1/0441/2253/8136/files/chapter_5_electrons_in_atoms_test.pdf
    • https://cdn.shopify.com/s/files/1/0432/5454/6590/files/vakovovidabamatorobu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/41718344304.pdf
    • https://cdn.shopify.com/s/files/1/0429/3859/7539/files/85740080236.pdf
    • https://cdn.shopify.com/s/files/1/0434/3057/6278/files/71549618113.pdf
    • https://cdn.shopify.com/s/files/1/0433/6071/4904/files/ropijutolafu.pdf
    • https://cdn.shopify.com/s/files/1/0434/5665/9621/files/megger_fluke_1507.pdf
    • https://cdn.shopify.com/s/files/1/0437/9040/1687/files/calf_stretches.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000519f.bin
6c44e2f6e9a975b459dcd14386ed9b0a3600e57d8c36a8f46f3d33d95b83404a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x519F 5708 bytes
font_01_sfnt_off00006518.bin
f1918727ec5a8ba67c8157650c0882088cd68ced18ff5ef24b793efec639474c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6518 7536 bytes

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