Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e269f1967abc1d6…

MALICIOUS

PDF

53.4 KB Created: 2020-08-21 03:59:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4619b4a4ff8c8030ec5c181bd6b55655 SHA-1: cfdf9cd12a15e108a39ff341036fc3083cd70efc SHA-256: 1e269f1967abc1d691b6410dc5bb739328f256a0c355203982df35fedebe9715
120 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=bacteriological+examination+of+water+lab+report'. This URL is designed to lure users into clicking by presenting itself as a legitimate lab report. The PDF also contains a link farm, suggesting an attempt to manipulate search engine results or distribute malicious content broadly. No scripts were extracted, but the primary attack vector is the embedded malicious URL.

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=bacteriological+examination+of+water+lab+report
    • http://duzeziv.oslutheran.com/uploads/1/3/1/4/131437595/4460092.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/deduxikotatuni.pdf
    • https://cdn.shopify.com/s/files/1/0428/1024/5286/files/gufalasaxumon.pdf
    • https://cdn.shopify.com/s/files/1/0460/1964/1503/files/bkash_app_offer.pdf
    • https://cdn.shopify.com/s/files/1/0440/2987/0230/files/20740497490.pdf
    • https://cdn.shopify.com/s/files/1/0443/6285/8652/files/80170518579.pdf
    • https://cdn.shopify.com/s/files/1/0436/4815/5806/files/establishing_task_and_reporting_relationship.pdf
    • https://cdn.shopify.com/s/files/1/0427/5837/3542/files/lipojimovori.pdf
    • https://cdn.shopify.com/s/files/1/0429/6926/8373/files/xamemoregudobonedad.pdf
    • https://cdn.shopify.com/s/files/1/0431/2832/4257/files/history_of_science_fiction_literature.pdf
    • https://cdn.shopify.com/s/files/1/0434/2431/7607/files/60515358964.pdf
    • https://cdn.shopify.com/s/files/1/0438/3624/4118/files/zukuwali.pdf
    • https://cdn.shopify.com/s/files/1/0429/7926/2615/files/sowatupeloz.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_off00009196.bin
712d1be27304585c11b6ddadd8f8d6857253cfb689440529cffb76382e3c06be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9196 5504 bytes
font_01_sfnt_off0000a454.bin
76f993593dfdf1399440ef39bb05ba28179de1c83aad626ab8158a9c8b463bca		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA454 10624 bytes

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