Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b4820198baa4eb5…

MALICIOUS

PDF

45.9 KB Created: 2020-08-09 14:51:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43575880831f87c85ff7139853b66995 SHA-1: 61c44935c7600599c23cd3c9e15bdc9550c1b7df SHA-256: 7b4820198baa4eb5efc3a0d2e76a5ea6504d5d08952c65d28c71df572654bdcf
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body and extracted URLs suggest a lure related to online tools, specifically a 'web page to pdf converter'. The primary malicious URL identified is ttraff.com, which is known to host redirectors. The PDF also contains a large number of links to Shopify domains, likely part of a link farm to improve search engine ranking for malicious content.

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=online+web+page+to+pdf+converter+free+download
    • http://files.friendsofmip.com/uploads/1/3/2/7/132740540/b2a1b2ce83eb7b6.pdf
    • http://files.galvestonbaycharterfishing.com/uploads/1/3/0/7/130775544/lunulibapijexep.pdf
    • http://jibepon.kcbakes.com/uploads/1/3/1/3/131384169/xumomilizevemew-kabopudonod-razaferawupadi-buvonamifu.pdf
    • http://files.kathleenorourke.com/uploads/1/3/1/0/131070500/moguzojibivirig_pabifelew.pdf
    • https://cdn.shopify.com/s/files/1/0431/7839/3764/files/heath_scientific_computing_solutions_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/8526/7097/files/restaurant_manager_interview_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0430/9227/9445/files/rapport_de_stage_analyse_financiere_d_une_entreprise.pdf
    • https://cdn.shopify.com/s/files/1/0431/9775/9643/files/setubeku.pdf
    • https://cdn.shopify.com/s/files/1/0428/2230/3911/files/nilipukizoda.pdf
    • https://cdn.shopify.com/s/files/1/0433/5842/1142/files/learn_javascript_the_hard_way.pdf
    • https://cdn.shopify.com/s/files/1/0436/0300/1502/files/93476849607.pdf
    • https://cdn.shopify.com/s/files/1/0430/3526/3138/files/jetelubezumemomixof.pdf
    • https://cdn.shopify.com/s/files/1/0433/3414/0072/files/kaxorolopepifedoga.pdf
    • https://cdn.shopify.com/s/files/1/0438/5724/8421/files/vajekulifaki.pdf
    • https://cdn.shopify.com/s/files/1/0436/9963/4326/files/79592002487.pdf
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/71787570591.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_off00006790.bin
63ff2848c9a9a03ac48a485e5078b412d3357a45a2dd1d890b25d879d4eee282
pdf-font-stream PDF embedded font (sfnt) at offset 0x6790 5252 bytes
font_01_sfnt_off0000798c.bin
3017c31508597bd3611047dbb62c790b5c8e936e701b60f11915070653803745
pdf-font-stream PDF embedded font (sfnt) at offset 0x798C 10052 bytes
font_02_sfnt_off00009bf4.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x9BF4 4324 bytes