Malicious PDF — malware analysis report

Static analysis result for SHA-256 c32ee5dcbe4579f2…

MALICIOUS

PDF

33.6 KB Created: 2020-08-22 19:25:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3f743509f941a1bb5fd610e421357c1a SHA-1: bc8697ffdd308598a8e30510bfc7138087754188 SHA-256: c32ee5dcbe4579f2ef89fbe9abef4909aa7204980a1b76dac2a78aafed524922
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains hosting PDF files, which is indicative of a link farm. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=buku+arabiyah+baina+yadaik'. This suggests the document is designed to lead users to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted from this sample.

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=buku+arabiyah+baina+yadaik
    • http://files.joannasholistictreatmentclinic.com/uploads/1/3/1/1/131163914/tazigusod_tavumudarofap_maruvejeri.pdf
    • https://cdn.shopify.com/s/files/1/0431/6309/1112/files/3281841401.pdf
    • https://cdn.shopify.com/s/files/1/0436/6693/1862/files/mexemobadarapaken.pdf
    • https://cdn.shopify.com/s/files/1/0435/5381/6728/files/19563339305.pdf
    • https://cdn.shopify.com/s/files/1/0431/4680/5404/files/vegarituvejamu.pdf
    • https://cdn.shopify.com/s/files/1/0432/2174/5825/files/22820170944.pdf
    • https://cdn.shopify.com/s/files/1/0428/4553/6419/files/analgesia_obstetrica.pdf
    • https://cdn.shopify.com/s/files/1/0441/2011/3304/files/mbbs_1st_year_biochemistry_book.pdf
    • https://cdn.shopify.com/s/files/1/0428/9930/8711/files/bitdefender_total_security_crack.pdf
    • https://cdn.shopify.com/s/files/1/0438/4302/7109/files/minority_report_resumo_filosofico.pdf
    • https://cdn.shopify.com/s/files/1/0430/7438/8119/files/10433259063.pdf
    • https://cdn.shopify.com/s/files/1/0432/0215/0557/files/craftsman_109_lathe.pdf
    • https://cdn.shopify.com/s/files/1/0430/1049/0519/files/11842618070.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_off00004752.bin
23d4c815ad9fd9ef58aae5c0f0f7ecc443b2c7ec7ee2c857e58e61e363d95a30		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4752 5056 bytes
font_01_sfnt_off00005887.bin
f608a9dd90739fd3c7db6795779d0b6ea6a9b806e209e5ceb85c6d40c459528c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5887 9704 bytes

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