Malicious PDF — malware analysis report

Static analysis result for SHA-256 580f7a0464a1c937…

MALICIOUS

PDF

46.1 KB Created: 2020-07-15 22:28:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 820a7a166f23c6e25d351668254b61de SHA-1: 6d8eb8c6ccef9dc7650e46b4fe35467093445dbd SHA-256: 580f7a0464a1c93778e1a011c50a9887409211c0d5b38f755bd21379fdc36b25
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, identified as a link farm, with one critical heuristic flagging a redirector link to 'ttraff.com'. The document body, though heavily obfuscated, suggests a lure related to a 'Tp link tl-wr841n manual'. This indicates a social engineering tactic to drive users to malicious infrastructure.

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=tp%20link%20tl-wr841n%20manual
    • http://files.awonderland.co.uk/uploads/1/3/1/4/131453387/97c8becc1beda.pdf
    • http://files.shakerrentals.com/uploads/1/3/2/8/132815752/jabiratijoso-zamedo.pdf
    • http://files.mi-sheffield.com/uploads/1/3/1/6/131606368/niludavifek_rerodotite.pdf
    • http://files.planet-patrick.com/uploads/1/3/2/6/132681773/26f3c.pdf
    • http://files.fairyringschool.org/uploads/1/3/1/6/131637307/352159.pdf
    • http://files.alwayshelpful.org/uploads/1/3/2/6/132695546/lexarasunepewuwap.pdf
    • http://files.st-abbs-market.com/uploads/1/3/1/3/131398598/tesinarewas.pdf
    • http://files.heartwoodprayerwheels.com/uploads/1/3/0/7/130739128/gojopiki.pdf
    • http://files.heartwoodprayerwheels.com/uploads/1/3/0/7/130739128/gojopik
    • https://pisurika.files.wordpress.com/2020/06/jaxezu.pdf
    • https://kemamutapewi.files.wordpress.com/2020/07/tafid.pdf
    • https://nufawuledoke61680970.files.wordpress.com/2020/07/74282586230.pdf
    • https://zipojuroxob.files.wordpress.com/2020/07/nivarolusilijuvajisut.pdf
    • https://widezafo.files.wordpress.com/2020/06/43704286325.pdf
    • https://cdn.shopify.com/s/files/1/0429/0910/6335/files/revitawepiwutaja.pdf
    • https://cdn.shopify.com/s/files/1/0432/5425/1670/files/sijekobenesitebaw.pdf
    • https://cdn.shopify.com/s/files/1/0432/7315/8806/files/18412136838.pdf
    • https://cdn.shopify.com/s/files/1/0432/6080/5280/files/3963090283.pdf
    • https://cdn.shopify.com/s/files/1/0428/3816/3623/files/53258344379.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mirizopenifipometetotagoz.pdf
    • https://cdn.shopify.com/s/files/1/0433/9492/4694/files/51978400243.pdf
    • https://cdn.shopify.com/s/files/1/0428/1221/1359/files/digosagur.pdf
    • https://cdn.shopify.com/s/files/1/0429/5114/7676/files/91372203841.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_off0000775c.bin
7deec4e08dd3bf62cfae981970fb0425afe5f8b160f8bdf2eac7a696b7b91026
pdf-font-stream PDF embedded font (sfnt) at offset 0x775C 4912 bytes
font_01_sfnt_off00008801.bin
2bc4a461dc126655ba7773f0e0acb8c74e22cdfc7bf15f0c5ce3c95cff6fd30b
pdf-font-stream PDF embedded font (sfnt) at offset 0x8801 10372 bytes