Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb825bc8a48bfe0b…

MALICIOUS

PDF

39.8 KB Created: 2020-08-16 16:56:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49f396acf70f80cf28bfb9c7552b2017 SHA-1: 98ddc36aea64362c4203740ab02a3a631eeb90bd SHA-256: cb825bc8a48bfe0bf600d0504b1e30eb4d48853f6f12e17ab31af4f8465d7bb5
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to a URL that appears to be part of a SEO link farm. The document body, though partially corrupted, contains text related to a 'Ryobi door latch installation kit manual' and the malicious URL, suggesting a lure to trick users into clicking the link. The primary malicious URL is ttraff.cc, which redirects to a Shopify hosted PDF, likely as part of a multi-stage redirection or SEO poisoning tactic.

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=ryobi+door+latch+installation+kit+manual
    • http://dudonu.laurarodriguezphotography.com/uploads/1/3/1/4/131438025/42aa8a3.pdf
    • http://nokonuf.sanjna-r.com/uploads/1/3/2/3/132302782/xixuxopovitezibuwo.pdf
    • http://files.sarahthurstensondesign.com/uploads/1/3/1/4/131407692/xavejosur.pdf
    • http://zivej.greenbushhistoricalsociety.org/uploads/1/3/1/4/131483154/zudokuzukilukase.pdf
    • https://cdn.shopify.com/s/files/1/0435/9805/3539/files/28872298195.pdf
    • https://cdn.shopify.com/s/files/1/0432/2865/9874/files/appendicitis_complications.pdf
    • https://cdn.shopify.com/s/files/1/0436/1371/6643/files/dutirizerivagagonimatoli.pdf
    • https://cdn.shopify.com/s/files/1/0427/9359/9132/files/is_it_love_matt_answers_chapter_2.pdf
    • https://cdn.shopify.com/s/files/1/0437/1592/0024/files/apple_tv_2_remote_app_android.pdf
    • https://cdn.shopify.com/s/files/1/0430/2556/3799/files/physics_book_9th_class_punjab_textbook_board.pdf
    • https://cdn.shopify.com/s/files/1/0436/4537/0521/files/60532106167.pdf
    • https://cdn.shopify.com/s/files/1/0431/3769/5906/files/zavewopebo.pdf
    • https://cdn.shopify.com/s/files/1/0429/0904/0803/files/11623983251.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jomanumono.pdf
    • https://cdn.shopify.com/s/files/1/0427/9389/4044/files/96488830941.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_off000054e0.bin
90fb1042126c15d8a796f6f88dc26108755fb6ca519e05b6d0de05ca6d3d969f
pdf-font-stream PDF embedded font (sfnt) at offset 0x54E0 1724 bytes
font_01_sfnt_off00005d6a.bin
6464047398b0f6fb0f83bb4f6a706b6b09b7b639aa75509ecc80370ed2ba44a4
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D6A 5492 bytes
font_02_sfnt_off00006fde.bin
1635b9c3157c25e7f5f6a2f7e6111f625100bb17c81dde7a67a044b5b7b52d18
pdf-font-stream PDF embedded font (sfnt) at offset 0x6FDE 10032 bytes