Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2e8dbc349e8018c…

MALICIOUS

PDF

36.4 KB Created: 2020-08-06 19:41:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0375539f6978832e6845b2650e667463 SHA-1: cc0d83924394a184d45724872a353d126f7d5c59 SHA-256: b2e8dbc349e8018c4ced571235b31c0fa9a3b361c914955a2127d53c8f8f3a7a
140 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a Castrol Edge Titanium FST 0W-40 PDF. It also features a large number of links to other PDF files hosted on Shopify, suggesting an SEO link farm tactic. The presence of a callback phishing lure further indicates a malicious intent to deceive the user. No scripts were extracted, but the embedded URLs and the PDF structure strongly suggest a phishing or scam attempt.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=castrol+edge+titanium+fst+0w+40+pdf
    • http://files.shineondyez.com/uploads/1/3/1/4/131406701/fabad.pdf
    • http://files.danacopeconsulting.com/uploads/1/3/1/6/131636956/3923284.pdf
    • http://runuv.familyandbusinesslearning.com/uploads/1/3/1/8/131856584/206298.pdf
    • https://cdn.shopify.com/s/files/1/0428/2135/3635/files/accountancy_book_class_11_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0431/5211/3820/files/gary_glitter_rock_and_roll.pdf
    • https://cdn.shopify.com/s/files/1/0432/5716/8027/files/90253609170.pdf
    • https://cdn.shopify.com/s/files/1/0430/9562/1786/files/49847590032.pdf
    • https://cdn.shopify.com/s/files/1/0447/1989/8777/files/vanilla_wow_leatherworking_guide.pdf
    • https://cdn.shopify.com/s/files/1/0427/6345/2583/files/nodofovuzaxupuzuz.pdf
    • https://cdn.shopify.com/s/files/1/0436/1748/4957/files/93040513081.pdf
    • https://cdn.shopify.com/s/files/1/0430/1560/2337/files/17983089601.pdf
    • https://cdn.shopify.com/s/files/1/0432/8371/0117/files/kiwumo.pdf
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/50757335090.pdf
    • https://cdn.shopify.com/s/files/1/0434/9739/0244/files/wiwobugisejozi.pdf
    • https://cdn.shopify.com/s/files/1/0431/4729/6922/files/amsco_integrated_algebra_1_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0428/9832/5663/files/4720919753.pdf
    • https://cdn.shopify.com/s/files/1/0435/4444/5079/files/81336979505.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_off00004e28.bin
362bf9e7108c5c67dd80203a84389c58c034b5e292973b2d0af582c50677b94c
pdf-font-stream PDF embedded font (sfnt) at offset 0x4E28 5588 bytes
font_01_sfnt_off00006125.bin
ad77ef09c88a1f001b9592ac517ada8a7b934359ec05c6a50f0d543b647b2b52
pdf-font-stream PDF embedded font (sfnt) at offset 0x6125 10316 bytes