Malicious PDF — malware analysis report

Static analysis result for SHA-256 48a3a0672a234629…

MALICIOUS

PDF

55.0 KB Created: 2020-07-31 02:11:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47b2919ff983b19e52c80e2255fa1eb4 SHA-1: e804e6506a3e3f3a56810ea91f3ecd894a4314e2 SHA-256: 48a3a0672a234629552eb1b43c99d0637015dd678d8325d50e4e83784a6a67ff
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to Shopify domains but are likely part of a link farm designed to manipulate search engine results. One critical heuristic indicates a direct link to a known malicious redirector at 'ttraff.com'. This suggests the document's primary purpose is to drive traffic to malicious infrastructure, likely for phishing or malware distribution.

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=nfl+schedule+grid+pdf
    • http://files.key2code.co.uk/uploads/1/3/1/1/131164153/1034127.pdf
    • http://files.arizonamobiledetail.com/uploads/1/3/1/4/131409074/fawafifamibona_medizotezujesog_zegawowunipime.pdf
    • http://files.chesterandlucy.co.nz/uploads/1/3/1/4/131482988/6266320.pdf
    • http://files.losangelestoyandminiaussies.com/uploads/1/3/1/6/131606111/1338896.pdf
    • https://cdn.shopify.com/s/files/1/0434/5511/9513/files/gupurelaboma.pdf
    • https://cdn.shopify.com/s/files/1/0432/1725/6603/files/52321085417.pdf
    • https://cdn.shopify.com/s/files/1/0434/3041/2453/files/99223507252.pdf
    • https://cdn.shopify.com/s/files/1/0431/1243/1778/files/jusivanan.pdf
    • https://cdn.shopify.com/s/files/1/0430/7353/6161/files/pejigenaxabilalutopo.pdf
    • https://cdn.shopify.com/s/files/1/0431/0263/4148/files/wijirenaxetibod.pdf
    • https://cdn.shopify.com/s/files/1/0429/1290/7427/files/mifopinapagumejujolunen.pdf
    • https://cdn.shopify.com/s/files/1/0430/0816/3993/files/65668138190.pdf
    • https://cdn.shopify.com/s/files/1/0437/4380/5591/files/zavafaj.pdf
    • https://cdn.shopify.com/s/files/1/0432/3993/2064/files/goreripaj.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_off00008a8b.bin
1f95de62b8ce6ae3460feb91989eadff4e17a9abb111ed932a5e0c4f19ecbc64
pdf-font-stream PDF embedded font (sfnt) at offset 0x8A8B 4760 bytes
font_01_sfnt_off00009ac9.bin
5ff274b256a95d41bfc3ef3472766a009eb2f15947337e26d1e80b3cb04166cb
pdf-font-stream PDF embedded font (sfnt) at offset 0x9AC9 16212 bytes