Malicious PDF — malware analysis report

Static analysis result for SHA-256 e04a2de860284bfc…

MALICIOUS

PDF

45.4 KB Created: 2020-09-17 11:58:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 855e097a23433028c7e5081007d15373 SHA-1: a1a50720ecba3a9e86ccdf279694dbfe9355c0c1 SHA-256: e04a2de860284bfc0b408a3aa1e87f2033950053e5b3cfeafd87e65b3cf3fb44
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to redirectors or unknown domains. One critical heuristic identified a link to known malicious redirector infrastructure, specifically `https://ttraff.me/wix?keyword=pcc+math+placement+test+study+guide`. The document body, though heavily obfuscated, contains references to this URL and other PDF links, suggesting a lure to external malicious content. The presence of numerous PDF links and a malicious redirector indicates a likely attempt to drive traffic to potentially harmful sites.

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.me/wix?keyword=pcc+math+placement+test+study+guide
    • http://fuzevu.dinki.me/uploads/1/3/1/4/131452977/2627829.pdf
    • http://gopef.ace1m.com/uploads/1/3/0/8/130813934/netixudubub-bosewepibizenud-teludibokuso.pdf
    • http://files.meganbledsoeward.com/uploads/1/3/2/6/132695942/bilopuguv.pdf
    • http://files.allezmag.co/uploads/1/3/0/7/130739037/tuwazib-gimed-mikareliga-xululad.pdf
    • http://sarilife.desert-rose-productions.com/uploads/1/3/0/7/130776436/ba739de692ac.pdf
    • http://bexodapon.mimengraving.com/uploads/1/3/1/3/131380213/51ab6.pdf
    • http://files.bhs-swim.com/uploads/1/3/0/9/130969191/tuzukexezin.pdf
    • http://nirin.mrsbrownsmusicroom.com/uploads/1/3/1/1/131164250/fokagubemud.pdf
    • http://files.changingfutures.org.uk/uploads/1/3/1/6/131606087/mufegesitawiko-matuwomap-xivekun-vokozufeletefuz.pdf
    • https://02de124d-e6de-4beb-b89c-416973dbea66.filesusr.com/ugd/b65acf_f2873a9dcdeb405384362614c0fe01bf.pdf?index=true
    • https://413f17b8-90ce-4ebe-9b36-6c090e06f4aa.filesusr.com/ugd/370ea2_a60690cc66774b518d175de1ccc8e4ab.pdf?index=true
    • https://c96d87c1-7cc2-4550-b507-94493d2ac5ed.filesusr.com/ugd/941881_63d94045ccd94472bf271f2a6978aba8.pdf?index=true
    • https://b6b6ce75-a524-426f-8e38-e9fe606db906.filesusr.com/ugd/7a359d_d27287c12a9f464994a4d42ac896ef21.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0431/1734/6976/files/ronuzeb.pdf
    • https://cdn.shopify.com/s/files/1/0430/3542/6970/files/92261946563.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_off0000654e.bin
34a1313872b00e7372c190785f4f100a8d5e9d6bd0a117e087a73dee5305cbf2
pdf-font-stream PDF embedded font (sfnt) at offset 0x654E 5268 bytes
font_01_sfnt_off00007712.bin
3e3787283e3935e10386fc356a25e8ce53086d45f40664939f824f36456b7ce2
pdf-font-stream PDF embedded font (sfnt) at offset 0x7712 10372 bytes
font_02_sfnt_off00009a8a.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9A8A 4324 bytes