Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7ffb6bb44e7b01e…

MALICIOUS

PDF

34.5 KB Created: 2020-08-21 22:46:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 897e71777d481228a92f440eaac29d83 SHA-1: a8fd01b5506ae36ef2353462545f3accec94e532 SHA-256: c7ffb6bb44e7b01e0d129832c18235a8c77f63e3384859762e7c38a94502dfaa
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to a high density of embedded external links. One of these links points to a known malicious redirector, 'ttraff.cc', which likely serves as a gateway to a phishing or malware distribution page. The file also contains a large number of links to Shopify-hosted PDFs, suggesting a link farm or SEO manipulation tactic. The document body contains garbled text and a reference to the redirector URL, further supporting the malicious intent.

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=naina+song++video
    • http://pogediw.tamara-vasquez.com/uploads/1/3/0/7/130776089/3befbb40ebea59.pdf
    • https://cdn.shopify.com/s/files/1/0431/5663/5805/files/sodedaruvewagutisiwi.pdf
    • https://cdn.shopify.com/s/files/1/0438/9735/6443/files/gun_in_mouth_emoji.pdf
    • https://cdn.shopify.com/s/files/1/0436/8711/6965/files/zotomesamegaxizazanin.pdf
    • https://cdn.shopify.com/s/files/1/0439/2042/5115/files/what_is_onenote_printer.pdf
    • https://cdn.shopify.com/s/files/1/0430/1560/2339/files/zinanikitis.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tadigepulimo.pdf
    • https://cdn.shopify.com/s/files/1/0433/9856/1957/files/29854883898.pdf
    • https://cdn.shopify.com/s/files/1/0435/2920/7957/files/contoh_siklus_akuntansi_perusahaan_dagang_lengkap.pdf
    • https://cdn.shopify.com/s/files/1/0435/0279/6964/files/abstract_reasoning_test_epso.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003e81.bin
b51c89adf9ec2a058f976e62fbcf05861c8e1f1a85f2cce96937fb4c94441eca
pdf-font-stream PDF embedded font (sfnt) at offset 0x3E81 4604 bytes
font_01_sfnt_off00004e2f.bin
a3122d9e0abf9aa21d22640ba1617a38f552e8d2c1446aa1ecc5fa792b720bc3
pdf-font-stream PDF embedded font (sfnt) at offset 0x4E2F 9836 bytes
font_02_sfnt_off00006fa1.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0x6FA1 4324 bytes