Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c26d78babbd353d…

MALICIOUS

PDF

34.9 KB Created: 2020-08-21 10:03:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 77618d5cbbf4d1183846f43bf9dd8550 SHA-1: d2be7dfb196d4cc2bd26fc5272917c8cb70daa7c SHA-256: 1c26d78babbd353d2fdb33d03bdb3cf79031fdfb89785cf653d1ba46c1a27247
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains multiple embedded links, with one pointing to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains text suggesting it is disguised as educational material ('simile and metaphor worksheets super teacher'). The presence of numerous links, including one to a suspicious domain, indicates a likely attempt to redirect the user to a malicious site for further exploitation or phishing. No scripts were extracted from this sample.

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/pify?keyword=simile+and+metaphor+worksheets+super+teacher
    • http://tekaxek.lanternlighttheatrecompany.com/uploads/1/3/1/3/131398140/7829894.pdf
    • https://cdn.shopify.com/s/files/1/0439/7613/0718/files/92569429312.pdf
    • https://cdn.shopify.com/s/files/1/0432/5061/4429/files/6099975492.pdf
    • https://cdn.shopify.com/s/files/1/0434/1848/4888/files/88384609907.pdf
    • https://cdn.shopify.com/s/files/1/0433/3345/1944/files/raxagaku.pdf
    • https://cdn.shopify.com/s/files/1/0435/3510/6203/files/dodubadedojapiviboxizuk.pdf
    • https://cdn.shopify.com/s/files/1/0439/8402/7806/files/85969798046.pdf
    • https://cdn.shopify.com/s/files/1/0432/7686/1606/files/bring_me_to_life_drum_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30408896218.pdf
    • https://cdn.shopify.com/s/files/1/0437/8106/2813/files/11687711126.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_off00003eb8.bin
49e091d968d96aa472d7287aa4d5e43ab598d27a799d39931df1c04e8bb492f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3EB8 5456 bytes
font_01_sfnt_off00005112.bin
aa537dc312eb43849c2f85ad0f64ffa1880f87e6892353ddf9217b0fa6694eb4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5112 9288 bytes
font_02_sfnt_off000070cd.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70CD 4324 bytes

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