Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cf8ab33480b0775…

MALICIOUS

PDF

42.7 KB Created: 2020-08-10 16:56:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 023063a64de5e1eaf6f81cb3c50fe0cf SHA-1: f5c95579dd4c7aede6e0db66472eedf1afa706f2 SHA-256: 2cf8ab33480b0775802d97741e70891ca690c1c3ac702046e101430328db6fc7
150 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=maximo+asset+management+7.+6.+1+pdf'. This indicates a phishing or social engineering attempt to redirect the user to a malicious site. The document body also contains this URL, reinforcing the lure. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm used for SEO poisoning or to obscure the final malicious destination.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.ru/pify?keyword=maximo+asset+management+7.+6.+1+pdf
    • http://files.802beancompany.com/uploads/1/3/0/7/130739344/vufukabafe_kusilixig_telisiputikonin.pdf
    • http://files.spmauzyandassociates.com/uploads/1/3/2/6/132682040/7017474.pdf
    • http://files.tackleproducts.co.nz/uploads/1/3/0/7/130775968/02eab7d5ff1.pdf
    • https://cdn.shopify.com/s/files/1/0432/5608/6696/files/64028569507.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/66541571973.pdf
    • https://cdn.shopify.com/s/files/1/0431/5676/6882/files/66745981781.pdf
    • https://cdn.shopify.com/s/files/1/0437/1313/4757/files/56077515491.pdf
    • https://cdn.shopify.com/s/files/1/0430/3742/5818/files/35823601859.pdf
    • https://cdn.shopify.com/s/files/1/0434/7117/5846/files/xaliwa.pdf
    • https://cdn.shopify.com/s/files/1/0431/6063/3504/files/zuluwibike.pdf
    • https://cdn.shopify.com/s/files/1/0432/7846/7222/files/vijala.pdf
    • https://cdn.shopify.com/s/files/1/0429/6966/1589/files/64652867623.pdf
    • https://cdn.shopify.com/s/files/1/0432/6067/4198/files/dopawugedeferosegaxuxa.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/3183641906.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_off0000677b.bin
b267971e6b0297362bf7348fbac54280008126fec975eb034dc521577970669b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x677B 5624 bytes
font_01_sfnt_off00007abd.bin
aa0fb94395423397e46ce15cf53bcdd302b73f43ebd271a16b7eb58b5dd71db2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7ABD 10420 bytes

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