Malicious PDF — malware analysis report

Static analysis result for SHA-256 49d1520c32d91bc5…

MALICIOUS

PDF

46.2 KB Created: 2020-08-24 09:15:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 52320daa6d0491c9844aa1e2f31917b8 SHA-1: fbfd7580253f303665fe9ff3533f3efe7c79d057 SHA-256: 49d1520c32d91bc5f60f818e01befae8c81285d08decd5e2ae4eea9319ec4352
128 Risk Score

Malware Insights

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

The PDF file contains a high number of embedded links, many of which point to a redirector service known to host malicious content. The document body, though heavily obfuscated, contains text related to a 'free barcode scanner' and includes the malicious redirector URL, suggesting a lure to download or access potentially harmful software. The presence of a visual download button heuristic further supports the deceptive nature of the document.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=free+barcode+scanner+for+android+phone
    • http://datikafu.thetarotemporium.com/uploads/1/3/1/3/131379578/sideziwunux.pdf
    • http://damebe.penkhullfestival.com/uploads/1/3/0/9/130969933/1090626.pdf
    • http://pogaxuge.authorjmstewart.com/uploads/1/3/1/1/131163651/zajanizi_zaxajuzukimibek_tusalavojam.pdf
    • http://zubuju.davidybkaufmann.com/uploads/1/3/1/1/131164250/dbee5fa98878.pdf
    • https://cdn.shopify.com/s/files/1/0430/3683/5993/files/dude_simulator_2_guide.pdf
    • https://cdn.shopify.com/s/files/1/0435/5253/8787/files/financial_auditor_job_description.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38030937597.pdf
    • https://cdn.shopify.com/s/files/1/0432/7964/6878/files/gumov.pdf
    • https://cdn.shopify.com/s/files/1/0432/2328/5928/files/pevesunuvugenegexun.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49839171509.pdf
    • https://cdn.shopify.com/s/files/1/0438/4836/8288/files/hope_for_the_best_answer.pdf
    • https://cdn.shopify.com/s/files/1/0430/8631/5682/files/nafob.pdf
    • https://cdn.shopify.com/s/files/1/0432/1109/6221/files/48893139498.pdf
    • https://cdn.shopify.com/s/files/1/0431/0463/2998/files/blog_template.pdf
    • https://cdn.shopify.com/s/files/1/0433/5108/1114/files/a_level_mathematics_past_exam_papers.pdf
    • https://cdn.shopify.com/s/files/1/0433/4954/1013/files/43154493891.pdf
    • https://cdn.shopify.com/s/files/1/0428/1496/3868/files/41680819030.pdf
    • https://cdn.shopify.com/s/files/1/0447/2678/0060/files/bowodelijada.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_off0000754a.bin
2580134f423f93495c8ffe157eae132acba8ed3748db5e1c5fe1f2de9d118a2e
pdf-font-stream PDF embedded font (sfnt) at offset 0x754A 5304 bytes
font_01_sfnt_off00008742.bin
08b2dcd8922be12d815b7a40835f208a020d639efb5f281d8f3f934042b3fa52
pdf-font-stream PDF embedded font (sfnt) at offset 0x8742 10564 bytes