Malicious PDF — malware analysis report

Static analysis result for SHA-256 53e454fc29b5b1cd…

MALICIOUS

PDF

44.6 KB Created: 2020-08-21 12:54:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9791c285c960cd1dfd9a02ebb11b6642 SHA-1: 0452ed7454a9e11fd97dad3222e104df841905e5 SHA-256: 53e454fc29b5b1cd1affa4a17a8bf8359242c430c9c04c3e74952b7e68b49422
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=bootstrap+websites+templates+free'. This indicates a phishing or scam attempt, using the guise of free website templates to entice clicks. The document also contains a large number of external PDF links, many hosted on cdn.shopify.com, suggesting a link farm or SEO manipulation tactic. The ML classifier strongly flagged this PDF as malicious.

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.cc/pify?keyword=bootstrap+websites+templates+free
    • http://bagizazoz.usatiande.com/uploads/1/3/1/3/131398020/lutijovip_bimesazekusa_dafureref.pdf
    • http://zolapetes.thesaltboxcafe.com/uploads/1/3/1/6/131606758/8a482fb95.pdf
    • https://cdn.shopify.com/s/files/1/0429/9427/0371/files/bricktop_s_paris.pdf
    • https://cdn.shopify.com/s/files/1/0433/0848/2710/files/93397861675.pdf
    • https://cdn.shopify.com/s/files/1/0432/2033/6807/files/past_simple_and_present_perfect_advanced_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0430/0128/2719/files/65812445953.pdf
    • https://cdn.shopify.com/s/files/1/0434/3293/5574/files/48963922984.pdf
    • https://cdn.shopify.com/s/files/1/0431/9589/1871/files/62425344260.pdf
    • https://cdn.shopify.com/s/files/1/0430/9896/4117/files/ganuvufigugatixovipofelen.pdf
    • https://cdn.shopify.com/s/files/1/0437/7044/5982/files/mijaxak.pdf
    • https://cdn.shopify.com/s/files/1/0437/5127/6696/files/39351420719.pdf
    • https://cdn.shopify.com/s/files/1/0435/9097/5647/files/lanuwuligilogewowo.pdf
    • https://cdn.shopify.com/s/files/1/0427/9785/8972/files/christian_brutal_sniper.pdf
    • https://cdn.shopify.com/s/files/1/0448/0257/2437/files/ichigo_final_form.pdf
    • https://cdn.shopify.com/s/files/1/0428/6211/7030/files/22382174799.pdf
    • https://cdn.shopify.com/s/files/1/0431/7144/6939/files/hitos_de_la_tecnologia_educativa.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/
    • https://cdn.shopify.com/s/files/1/0431/7144/6939/files/hitos_de_la_tecn

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ff7.bin
2f6ede14826cc21962a3e0bee6945ca7af525cf8106ea7090f59b83fe60950cb
pdf-font-stream PDF embedded font (sfnt) at offset 0x6FF7 5328 bytes
font_01_sfnt_off0000820f.bin
3892f1cb1eedc1de20d8aa19f99b88767081f36754bd563cd4703b7d79bba8e0
pdf-font-stream PDF embedded font (sfnt) at offset 0x820F 10396 bytes