Malicious PDF — malware analysis report

Static analysis result for SHA-256 9319c70dc58d5a9d…

MALICIOUS

PDF

67.3 KB Created: 2020-08-11 15:06:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f09c3eca6b6e5a9313494618e9e3635 SHA-1: 0aaac539ab302c1670b697a9673bd61dd9f7dc6d SHA-256: 9319c70dc58d5a9dfb1a153163422c9608e12937b0119c86caa5f7fcc32e6b27
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to mimic search results, directing users to a malicious redirector at 'ttraff.cc'. This tactic is commonly used to distribute malware or conduct phishing campaigns. The document body, though heavily obfuscated, contains references to the search query and the malicious URL, reinforcing the lure. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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.cc/pify?keyword=bhagavad+gita+chapter+1+in+english+pdf
    • http://geviruk.lynncasebooks.com/uploads/1/3/1/3/131383483/zazuke.pdf
    • http://files.rollingstonepens.com/uploads/1/3/1/4/131438025/mukolipejuzegifufeme.pdf
    • http://jinosagob.cottongin116.com/uploads/1/3/2/8/132815002/gagawiduko_buwoxupunuba.pdf
    • http://files.maloofroofing.com/uploads/1/3/1/6/131606222/3093938.pdf
    • http://files.seasunland.com/uploads/1/3/1/6/131606844/5765b3f.pdf
    • https://cdn.shopify.com/s/files/1/0429/9459/8047/files/31041317159.pdf
    • https://cdn.shopify.com/s/files/1/0436/1335/6189/files/microsoft_natural_ergonomic_4000.pdf
    • https://cdn.shopify.com/s/files/1/0432/6755/5481/files/vugufiwabokigi.pdf
    • https://cdn.shopify.com/s/files/1/0433/9191/0038/files/fatupajoduwonuluvuraniw.pdf
    • https://cdn.shopify.com/s/files/1/0431/3507/4465/files/78944443008.pdf
    • https://cdn.shopify.com/s/files/1/0438/4591/0678/files/phonics_syllabus_for_kindergarten.pdf
    • https://cdn.shopify.com/s/files/1/0434/3624/5142/files/50960270321.pdf
    • https://cdn.shopify.com/s/files/1/0432/2190/9662/files/fuvuj.pdf
    • https://cdn.shopify.com/s/files/1/0430/8949/4177/files/zefujugeruwaj.pdf
    • https://cdn.shopify.com/s/files/1/0434/3146/1016/files/zelilofeverosowomobad.pdf
    • https://cdn.shopify.com/s/files/1/0435/4641/1162/files/pagasiwulugoxiseg.pdf
    • https://cdn.shopify.com/s/files/1/0431/2301/5841/files/votununifojegaxawunagu.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008f9a.bin
174124a1a6fd2e2fbaf34ff82d47d01e1831592d90b341c4e3d1804ffbd01496
pdf-font-stream PDF embedded font (sfnt) at offset 0x8F9A 5580 bytes
font_01_sfnt_off0000a29c.bin
32c6d701c02909944b6e65c44dae656eef2a17b5d3f529dbb20bb282759f5aee
pdf-font-stream PDF embedded font (sfnt) at offset 0xA29C 16212 bytes
font_02_sfnt_off0000d205.bin
07115d0c2c234b89cd3494d3d69e1e457a5fb1668c65e9cbec0cae81020e5571
pdf-font-stream PDF embedded font (sfnt) at offset 0xD205 15036 bytes