Malicious PDF — malware analysis report

Static analysis result for SHA-256 e780231eca278270…

MALICIOUS

PDF

32.1 KB Created: 2020-08-21 13:04:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ba014db13c9741d4cd3ce5996ef84f50 SHA-1: 81fe32ae1c77816e1c70fa53a1fd2b0755fb2d1b SHA-256: e780231eca27827004512dcedd632812badaae04291880debdf0ec6dad852d32
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a link farm designed to attract users searching for game hacks, ultimately redirecting them to malicious infrastructure via `https://ttraff.cc/pify?keyword=pubg+mobile+hack+android+apk+indir`. The ML classifier strongly supports the malicious nature of this PDF. The document body and embedded links indicate a lure for potentially unwanted software or further malicious downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=pubg+mobile+hack+android+apk+indir
    • http://files.lisaspykers.com/uploads/1/3/1/4/131408027/5927737.pdf
    • https://cdn.shopify.com/s/files/1/0429/9803/8679/files/57511260365.pdf
    • https://cdn.shopify.com/s/files/1/0433/3309/1480/files/setenepufidu.pdf
    • https://cdn.shopify.com/s/files/1/0449/9944/2590/files/effects_of_soil_pollution_on_human_health.pdf
    • https://cdn.shopify.com/s/files/1/0429/7749/3146/files/gisomodiverawepanomo.pdf
    • https://cdn.shopify.com/s/files/1/0428/4606/0710/files/82847752998.pdf
    • https://cdn.shopify.com/s/files/1/0464/2662/0056/files/astrology_free_in_tamil.pdf
    • https://cdn.shopify.com/s/files/1/0429/0255/2742/files/bartender_software_new_version_free.pdf
    • https://cdn.shopify.com/s/files/1/0430/4211/1641/files/34471113681.pdf
    • https://cdn.shopify.com/s/files/1/0428/4219/4083/files/mawijitiwebutedes.pdf
    • https://cdn.shopify.com/s/files/1/0433/4023/4902/files/julia_cameron_morning_pages.pdf
    • https://cdn.shopify.com/s/files/1/0432/0047/9391/files/nagebozemoxe.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_off00003fed.bin
2991c49e8ae5fbb12d3a8f2be2064341826e9ef28228d71b965837f88153c2b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3FED 5512 bytes
font_01_sfnt_off0000526b.bin
4055373b9a3da9152938d6ae606044e3a2bb310f2b0dc6251f8345947cbabc72		 pdf-font-stream PDF embedded font (sfnt) at offset 0x526B 9756 bytes

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