Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f46ac36ab2d528b…

MALICIOUS

PDF

44.7 KB Created: 2020-08-09 06:22:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59d5370d74bad43f1be32a9c2a973abc SHA-1: f591e4edeadfe4715abd6c4879aba9cf082411ee SHA-256: 9f46ac36ab2d528b2b0f5771c5f7a83c7e101186a19b46f1d39d63a29b79c73e
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as legitimate academic or review materials, but the primary link redirects to malicious infrastructure at ttraff.com. This suggests a social engineering tactic to trick users into visiting a potentially harmful site. No scripts were extracted, limiting the analysis of further payload delivery or execution.

Heuristics 3

  • 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.
  • 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=barron+s+ap+psychology+review+book+pdf
    • http://files.mounthollywood.org/uploads/1/3/1/6/131607712/34311.pdf
    • http://files.werkmandental.com/uploads/1/3/1/6/131637896/vawubivamumelot-nodokinesibito-xolafibemi-xixofidaroxefud.pdf
    • http://files.ravenaterra.com/uploads/1/3/0/7/130776611/1181603.pdf
    • https://cdn.shopify.com/s/files/1/0431/1403/7397/files/asa_example_paper.pdf
    • https://cdn.shopify.com/s/files/1/0430/1167/0179/files/bugetadafezukore.pdf
    • https://cdn.shopify.com/s/files/1/0429/2991/4012/files/biomaterials_science_and_engineering.pdf
    • https://cdn.shopify.com/s/files/1/0431/8747/0499/files/6194226807.pdf
    • https://cdn.shopify.com/s/files/1/0428/2505/6412/files/ceneval_egel_medicina.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57355052908.pdf
    • https://cdn.shopify.com/s/files/1/0431/7901/6360/files/tesapen.pdf
    • https://cdn.shopify.com/s/files/1/0436/1479/7981/files/les_adjectifs_demonstratifs_exercices.pdf
    • https://cdn.shopify.com/s/files/1/0433/3892/4181/files/78068232759.pdf
    • https://cdn.shopify.com/s/files/1/0434/6213/1869/files/ligajafurajexupoteg.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_off00006e17.bin
e55faad93a70712d2eed9dc1ba5f4187c45de199483ab6c93ba22b77a5acf702
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E17 5924 bytes
font_01_sfnt_off00008256.bin
6e8fda9c18c437e1f218ad667c9fe86f844992752e7c3907229aa3e5de3132ea
pdf-font-stream PDF embedded font (sfnt) at offset 0x8256 10520 bytes