Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfeced4f3ece56a9…

MALICIOUS

PDF

46.6 KB Created: 2020-08-06 20:28:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7938e4a5b45a26e6ce93f56b720ccae1 SHA-1: 3ce661270f25019159cdb99da3d039047eb9d8dd SHA-256: dfeced4f3ece56a9cb04a6f8fc1c1547f44cad2003f6d52e7038cfe14e038b20
120 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a coupon offer, aiming to trick users into clicking it. The document body and embedded link structure suggest a phishing attempt to drive traffic to a malicious URL. The presence of a link farm further indicates an effort to manipulate search engine results or distribute malicious content broadly.

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=mcdonalds+coupons+2020+pdf+april
    • http://bitel.troop457sunnyvale.com/uploads/1/3/2/3/132303238/6b3a7da3de25.pdf
    • http://files.themagpiesmusic.com/uploads/1/3/0/9/130969689/movisuzagilep.pdf
    • http://zepegun.ksrotary.org/uploads/1/3/1/4/131407155/3640435.pdf
    • https://cdn.shopify.com/s/files/1/0431/4388/9058/files/78289416382.pdf
    • https://cdn.shopify.com/s/files/1/0431/8176/8864/files/toluzagulitag.pdf
    • https://cdn.shopify.com/s/files/1/0431/7796/7778/files/pemotilapafogozadi.pdf
    • https://cdn.shopify.com/s/files/1/0429/1425/0919/files/29783579991.pdf
    • https://cdn.shopify.com/s/files/1/0433/0808/9499/files/zujibutudatenodufusiw.pdf
    • https://cdn.shopify.com/s/files/1/0437/3757/9674/files/nelegu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9452/4579/files/sibazewawaderixig.pdf
    • https://cdn.shopify.com/s/files/1/0431/3006/0955/files/51901594678.pdf
    • https://cdn.shopify.com/s/files/1/0436/9275/3049/files/fodefelirejozi.pdf
    • https://cdn.shopify.com/s/files/1/0429/6212/4959/files/vazexekogivutax.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_off00007706.bin
9043b344a2999e1e5c59b5a968659b94c686be4cd00fffaf1df9930023fd1b83		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7706 5428 bytes
font_01_sfnt_off00008998.bin
efd1b3f0da6cc302543d9063e08c8e52e3f21768d6574dac3a52ebea5b9f42c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8998 10620 bytes

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