Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffe749a4909d7214…

MALICIOUS

PDF

43.0 KB Created: 2020-08-14 06:07:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 420b9a313532f33503563893826f22c6 SHA-1: 260fad0c8770fbf33fab82959fb2479579a5c853 SHA-256: ffe749a4909d72144da315b845ed7e64089e24cae13cd1f43dea0fbf05a1da86
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains references to the topic 'La guerra civil espanola resumen pdf' and the malicious URL, suggesting a lure to a phishing or malware distribution site. No scripts were extracted, but the primary attack vector appears to be the malicious redirector link.

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/wb?keyword=la%20guerra%20civil%20espanola%20resumen%20pdf
    • http://files.psautoworks.com/uploads/1/3/0/7/130739398/c3f81b866118b.pdf
    • http://nutuzizix.1fortheroad.rocks/uploads/1/3/1/6/131607310/3e6447198d134dd.pdf
    • http://files.charliebrownslaseredgifts.com/uploads/1/3/2/3/132303118/1a053.pdf
    • http://zivova.bdcclt.com/uploads/1/3/0/8/130873995/6043483.pdf
    • https://cdn.shopify.com/s/files/1/0431/7108/6485/files/naxurisoda.pdf
    • https://cdn.shopify.com/s/files/1/0438/2231/7728/files/63843791176.pdf
    • https://cdn.shopify.com/s/files/1/0430/3070/8375/files/26056602261.pdf
    • https://cdn.shopify.com/s/files/1/0433/0923/6374/files/60863360048.pdf
    • https://cdn.shopify.com/s/files/1/0430/6658/9335/files/cronbach_s_alpha_in_r.pdf
    • https://cdn.shopify.com/s/files/1/0431/1734/6982/files/58379836960.pdf
    • https://cdn.shopify.com/s/files/1/0431/5620/9819/files/7348701788.pdf
    • https://cdn.shopify.com/s/files/1/0433/8846/9411/files/wings_of_fire_book_10.pdf
    • https://cdn.shopify.com/s/files/1/0437/4098/7543/files/95800971430.pdf
    • https://cdn.shopify.com/s/files/1/0447/5430/5175/files/scrabble_apple_instructions.pdf
    • https://cdn.shopify.com/s/files/1/0432/1778/0896/files/lederafefe.pdf
    • https://cdn.shopify.com/s/files/1/0430/7966/3765/files/whirlpool_gold_dishwasher_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/3213/3278/files/angular_5_documentation_download.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_off000067ed.bin
710a01ff7a5a79bba023141ae9c02e00b1e1c7a8cbf93f85ff388730f09b10cb
pdf-font-stream PDF embedded font (sfnt) at offset 0x67ED 5476 bytes
font_01_sfnt_off00007a7e.bin
005ab21396fa52401bb6e61fafd0d0c5a13f6ceb579d29139fb799e6debd96f9
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A7E 10664 bytes