Malicious PDF — malware analysis report

Static analysis result for SHA-256 35c0fd7e8cfc09e5…

MALICIOUS

PDF

39.5 KB Created: 2020-08-19 13:20:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c829bd0f58eeba791b54270f4c8f3c7 SHA-1: 75ef859b8f42fe6e06b161dab0fa11a881186abc SHA-256: 35c0fd7e8cfc09e5a4eb65a03c7d38485d9077bf20bbef7bac908299032c2930
140 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link redirects to `ttraff.cc`, a known malicious redirector. The document body also contains text consistent with a callback phishing lure, asking the user to call a number in a billing or security context. The primary attack vector appears to be luring the user to click the malicious redirector link, which likely leads to a phishing page or malware download.

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.cc/pify?keyword=guideline+value+in+velachery
    • http://files.nwmissions.org/uploads/1/3/0/8/130813364/e136a96c1025d.pdf
    • http://files.rootsoflove.ca/uploads/1/3/1/4/131483281/a51bec804eb50.pdf
    • http://files.gbyws.org/uploads/1/3/1/4/131483019/paludizixi-pazibokadelok-xovubonavegazuz-nobuxudisapefod.pdf
    • http://zexop.threetreesart.com/uploads/1/3/2/8/132814930/difinamunedota.pdf
    • http://zopakage.mrsjones.us/uploads/1/3/1/4/131453574/tuboni.pdf
    • https://cdn.shopify.com/s/files/1/0438/1730/4226/files/lumenisobasobajiganan.pdf
    • https://cdn.shopify.com/s/files/1/0438/3775/1453/files/window_shopper_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0435/4503/4911/files/telecharger_journal_el_watan_algerie.pdf
    • https://cdn.shopify.com/s/files/1/0439/4647/5678/files/payment_of_gratuity_act_1972_download_in_marathi.pdf
    • https://cdn.shopify.com/s/files/1/0432/0899/9074/files/fluke_87_datasheet.pdf
    • https://cdn.shopify.com/s/files/1/0435/3658/0759/files/11123902348.pdf
    • https://cdn.shopify.com/s/files/1/0435/9582/5314/files/amazon_echo_2nd_generation_user_guide.pdf
    • https://cdn.shopify.com/s/files/1/0434/0727/8247/files/41522875044.pdf
    • https://cdn.shopify.com/s/files/1/0431/2278/6466/files/pumefozukawosumofakeweg.pdf
    • https://cdn.shopify.com/s/files/1/0429/5534/1977/files/48866211357.pdf
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/72879360908.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_off00005c89.bin
0b5c9b5e805d487722b4017088d861d20723e68d846b54055c7546b6a9747b3d
pdf-font-stream PDF embedded font (sfnt) at offset 0x5C89 5044 bytes
font_01_sfnt_off00006dad.bin
2b8bdeaef53f7e861adbe2884e2332cee96511ec345c4d08bf64723f5a9c043e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6DAD 10464 bytes