Malicious PDF — malware analysis report

Static analysis result for SHA-256 78de2ec939a034b9…

MALICIOUS

PDF

42.1 KB Created: 2020-08-20 00:49:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 40a0ca37f65fb6ced88a5eaeaa4018f1 SHA-1: 2a52adcd4e0e6090d7f25afe357ba85606a32164 SHA-256: 78de2ec939a034b98dba189a9443e75fd2ac90f53caca4d6c93b4cbd4bbe28bd
160 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains this URL and other embedded links, suggesting a lure for users to click through. The presence of a 'Password-protected archive lure' heuristic indicates that this PDF might be a precursor to delivering a password-protected malicious archive.

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=pes+2012+konami+football+games
    • http://files.iwamonline.org/uploads/1/3/0/7/130776228/474cb74626f.pdf
    • http://funatote.loseitwithliz.com/uploads/1/3/1/8/131871745/d255b1b3.pdf
    • http://files.ninebotours.com/uploads/1/3/1/4/131406082/5218455.pdf
    • http://files.greggrussellstudio.com/uploads/1/3/1/1/131163559/bamagitezeni.pdf
    • https://cdn.shopify.com/s/files/1/0437/9518/5824/files/zitenunokodiwifuvigilax.pdf
    • https://cdn.shopify.com/s/files/1/0435/7747/5233/files/ceramidas_pele.pdf
    • https://cdn.shopify.com/s/files/1/0436/0513/1421/files/zawoxokave.pdf
    • https://cdn.shopify.com/s/files/1/0433/8522/5372/files/lafutebim.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/19189676900.pdf
    • https://cdn.shopify.com/s/files/1/0428/3393/6547/files/67819979065.pdf
    • https://cdn.shopify.com/s/files/1/0432/6552/3862/files/tururuvubawuvigemuvi.pdf
    • https://cdn.shopify.com/s/files/1/0434/7651/7014/files/10626999647.pdf
    • https://cdn.shopify.com/s/files/1/0437/1070/9913/files/86888149519.pdf
    • https://cdn.shopify.com/s/files/1/0433/7215/0942/files/waxifefifemus.pdf
    • https://cdn.shopify.com/s/files/1/0447/2215/9772/files/atomic_number_and_mass_number.pdf
    • https://cdn.shopify.com/s/files/1/0432/6742/4412/files/simelejajafiwekuveg.pdf
    • https://cdn.shopify.com/s/files/1/0430/9660/4825/files/xefeserakijunogovobiv.pdf
    • https://cdn.shopify.com/s/files/1/0437/1048/0537/files/50746213885.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_off00006423.bin
5925aeb4a268b94c07532af8e93b33e96ae6543bf8948dfb590aa28afd1e3088
pdf-font-stream PDF embedded font (sfnt) at offset 0x6423 5520 bytes
font_01_sfnt_off000076f5.bin
da3fd0511cf8df18b0e1dceb4932fd2229dfaac865b161472027e5cc25cf1ad5
pdf-font-stream PDF embedded font (sfnt) at offset 0x76F5 10788 bytes