Malicious PDF — malware analysis report

Static analysis result for SHA-256 46153fe609a05f8f…

MALICIOUS

PDF

33.2 KB Created: 2020-08-26 01:22:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 085edb60a4eeb08975c270c310cc9b7d SHA-1: d2daf9e3674f73c8a7583d27c70c50fbb6a26c1a SHA-256: 46153fe609a05f8ff7138d42fdd81d2d11a43b0384cfad3210c814df91526bc4
152 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as legitimate PDF downloads, but the primary link redirects to a malicious URL (ttraff.com). This suggests a social engineering tactic to lure users into clicking malicious links, likely for further exploitation or malware delivery. The document body text, while partially corrupted, contains the malicious URL and other links that appear to be part of a link farm strategy.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • 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.
  • 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=family+therapy+an+overview+8th+edition+free+pdf
    • http://files.windowtothewild.org/uploads/1/3/0/7/130776781/bagexusezaf.pdf
    • https://cdn.shopify.com/s/files/1/0432/0018/4477/files/chigwell_school_uniform_list.pdf
    • https://cdn.shopify.com/s/files/1/0430/9286/9281/files/zozojemuzijokuteda.pdf
    • https://cdn.shopify.com/s/files/1/0436/1161/9491/files/nifegozaxudonaletewudaza.pdf
    • https://cdn.shopify.com/s/files/1/0434/2752/8861/files/solapur_talathi_exam_hall_ticket_2019.pdf
    • https://cdn.shopify.com/s/files/1/0434/7605/8274/files/binakexe.pdf
    • https://cdn.shopify.com/s/files/1/0445/7899/6383/files/61101893106.pdf
    • https://cdn.shopify.com/s/files/1/0431/0574/7108/files/pusabiguj.pdf
    • https://cdn.shopify.com/s/files/1/0434/7641/8720/files/android_sdk_manager_install.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_off0000468e.bin
eb25203d8d4f3d534506d4ac1034051bb17fe251a34a6aa1b32c8f5bf0526f5f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x468E 5508 bytes
font_01_sfnt_off0000593e.bin
bdd36e9157da0909e3eba05f24e0075e28ba0ecfe662ea26e078158db481b1db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x593E 9032 bytes

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