Malicious PDF — malware analysis report

Static analysis result for SHA-256 4020aefc13db2f34…

MALICIOUS

PDF

35.4 KB Created: 2020-08-08 15:33:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 711ce9b283c0639869c78f09de96f69e SHA-1: 612c56087126a78923ee9f6ff41a14eaa0669849 SHA-256: 4020aefc13db2f34824a249a52c499645fbdca1b6aec4195516dbed8eda9bbc7
140 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a download for 'Asme sectionviii division 2 pdf free download'. This link points to 'ttraff.com', a known malicious redirector. The document also functions as a link farm, directing users to numerous other PDFs hosted on Shopify, likely to improve search engine ranking for the lure content. The presence of a callback lure suggests a potential for further social engineering or direct interaction with the victim.

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=asme+section+viii+division+2+pdf+free+download
    • http://files.ewaltersscitech.com/uploads/1/3/0/7/130775299/zanax_vusefopiro_vavusu.pdf
    • http://files.oatvalleybaptist.com/uploads/1/3/2/6/132695339/7605778.pdf
    • http://files.magentapixie.com/uploads/1/3/1/3/131379833/20261.pdf
    • http://rided.darlabroadwater.com/uploads/1/3/0/7/130776791/vemuwo_papapisexibod_zesaforagik.pdf
    • https://cdn.shopify.com/s/files/1/0429/3731/9590/files/rawitet.pdf
    • https://cdn.shopify.com/s/files/1/0428/7361/8599/files/kavolijejufiwamofidobin.pdf
    • https://cdn.shopify.com/s/files/1/0435/4415/0165/files/11051211907.pdf
    • https://cdn.shopify.com/s/files/1/0430/1137/5267/files/zefatutinelazuritumos.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69262577592.pdf
    • https://cdn.shopify.com/s/files/1/0435/0833/4744/files/laser_beam_machining_process.pdf
    • https://cdn.shopify.com/s/files/1/0431/5725/8401/files/43560794469.pdf
    • https://cdn.shopify.com/s/files/1/0432/8259/6004/files/31312939544.pdf
    • https://cdn.shopify.com/s/files/1/0428/8613/5961/files/33576075592.pdf
    • https://cdn.shopify.com/s/files/1/0433/5117/9416/files/divoxikidobotitija.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wososopozabe.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_off00004bb9.bin
6c976e158de493279114029805a8354b24db1a414e671a7edf19176878078ee1
pdf-font-stream PDF embedded font (sfnt) at offset 0x4BB9 5576 bytes
font_01_sfnt_off00005eb5.bin
5959dcaff1c2017fcfbddb67ca9967d1fe4bd6b180dc18e0125afb862c4c8d88
pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB5 9944 bytes