Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c008902f0343965…

MALICIOUS

PDF

54.7 KB Created: 2020-08-24 06:23:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49376f9afc652ef5c1254be8ed92a2e4 SHA-1: df5933e4be34fbbaf0e17946638e43779ec4d29b SHA-256: 1c008902f034396526e16fcc263e9cfeb4c7bb2832494a93820518b890798399
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass of external links, including one pointing to a known malicious redirector. The primary link, 'https://ttraff.cc/pify?keyword=bmi+berekenen+man+nieuwe+formule', is likely intended to lead the user to a phishing or malware distribution site. The document body, though heavily corrupted, contains fragments that suggest a lure related to 'BMI calculation'. 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.cc/pify?keyword=bmi+berekenen+man+nieuwe+formule
    • http://files.sydneybroadaway.com/uploads/1/3/0/7/130775071/ad42d3182088.pdf
    • https://cdn.shopify.com/s/files/1/0431/5352/2850/files/vodejepuzatirez.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/5903401900.pdf
    • https://cdn.shopify.com/s/files/1/0437/6097/6021/files/zojanizeku.pdf
    • http://pewomalu.zli.people.ua.edu/uploads/1/3/0/8/130874601/jukuxubopob.pdf
    • https://cdn.shopify.com/s/files/1/0437/7110/1338/files/39442990321.pdf
    • https://cdn.shopify.com/s/files/1/0429/8027/8426/files/leraruxorowikibigijoxek.pdf
    • https://cdn.shopify.com/s/files/1/0429/3741/7891/files/divisekofatad.pdf
    • https://cdn.shopify.com/s/files/1/0433/3692/5342/files/34094419300.pdf
    • https://cdn.shopify.com/s/files/1/0434/5823/2473/files/new_army_ocp_uniform_standards.pdf
    • https://cdn.shopify.com/s/files/1/0463/6891/5617/files/90905977791.pdf
    • https://cdn.shopify.com/s/files/1/0452/0719/1701/files/barbarian_dnd_5e.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_off0000989e.bin
a7d70135b038e4531d4bd0f5e7aa80c7a296381dc9b9d9ac225e8d18283eda2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x989E 5080 bytes
font_01_sfnt_off0000a9e5.bin
f4c91bbe3bac7c61fed91a73f635d7ed76ae774e20b73fcc0076b5050ee71f39		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA9E5 10752 bytes

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