Malicious PDF — malware analysis report

Static analysis result for SHA-256 29beb91c29884e12…

MALICIOUS

PDF

37.9 KB Created: 2020-08-24 08:23:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 739decacaa7bf67637cb28d479384304 SHA-1: b306fd6dc8a8fa039c06602b081201f4ed613767 SHA-256: 29beb91c29884e12fe5a25f091314f1688d1a9cb17190409046e980b2dd5f0da
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=jurnal+allamanda+cathartica+pdf'. This indicates the document's primary purpose is to lure users to a malicious site. The presence of a PDF link farm heuristic further supports the malicious intent, suggesting an attempt to distribute malicious content or engage in SEO abuse. No scripts were extracted, but the embedded URLs and heuristics strongly indicate a phishing or redirection attack.

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.cc/pify?keyword=jurnal+allamanda+cathartica+pdf
    • http://files.starmembership.org/uploads/1/3/1/6/131636612/c1ccdc6a.pdf
    • https://cdn.shopify.com/s/files/1/0466/7247/8373/files/90421564894.pdf
    • https://cdn.shopify.com/s/files/1/0434/5672/5153/files/98811742577.pdf
    • https://cdn.shopify.com/s/files/1/0437/1785/3335/files/baldur_s_gate_ps2.pdf
    • https://cdn.shopify.com/s/files/1/0434/7337/1288/files/90799582123.pdf
    • https://cdn.shopify.com/s/files/1/0440/1351/9006/files/snap_on_multimeter.pdf
    • https://cdn.shopify.com/s/files/1/0433/6936/5654/files/61906797367.pdf
    • https://cdn.shopify.com/s/files/1/0435/9231/9139/files/9474114797.pdf
    • https://cdn.shopify.com/s/files/1/0431/3517/2770/files/application_of_nanotechnology_in_cosmetics.pdf
    • https://cdn.shopify.com/s/files/1/0433/8846/9398/files/adcirca_package_insert.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_off00005811.bin
a3b33f01a523b0a1cfd430c2ad98dd7377b364ee91940e98bf6bd1e68c679bbb
pdf-font-stream PDF embedded font (sfnt) at offset 0x5811 5204 bytes
font_01_sfnt_off00006990.bin
177b5949d7ca8ee23a30bead67915b0707c9b4dc42cc7ee1f399fa2ed81340b1
pdf-font-stream PDF embedded font (sfnt) at offset 0x6990 9852 bytes