Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a19e935d8a50a50…

MALICIOUS

PDF

37.3 KB Created: 2020-08-22 12:51:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 96000e678e86d0f673bbccd2331803ab SHA-1: 86b2b07d339c3ce667d6420dd97cd02c992cfb78 SHA-256: 8a19e935d8a50a505300b7ac1eec68f67930058d4cc4308fdc9058c45eea1c51
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one heuristic specifically identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for a datasheet, which, when clicked, redirects to the malicious URL. The presence of many external links suggests a link farm or SEO poisoning tactic to distribute the malicious payload.

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.ru/pify?keyword=panasonic+aw-+rp50+datasheet
    • http://simig.madrassi.org/uploads/1/3/1/4/131483254/2924822.pdf
    • http://kewet.cornellactuarialsociety.com/uploads/1/3/0/9/130969627/rojikavugikilej-xavukoponupi-litix-vipewoduzafomom.pdf
    • http://napufav.stopabully.ca/uploads/1/3/1/4/131437308/refidake.pdf
    • http://jiwaka.nehoularescue.com/uploads/1/3/1/8/131856602/tujibomojud-luluporat.pdf
    • https://cdn.shopify.com/s/files/1/0440/3986/4485/files/minosobobivi.pdf
    • https://cdn.shopify.com/s/files/1/0431/8950/2110/files/legujunegi.pdf
    • https://cdn.shopify.com/s/files/1/0431/7049/6672/files/20356495238.pdf
    • https://cdn.shopify.com/s/files/1/0430/4830/4797/files/zuxubuvovaxemudivix.pdf
    • https://cdn.shopify.com/s/files/1/0431/4329/9234/files/bamojilutuvokokifoxofiz.pdf
    • https://cdn.shopify.com/s/files/1/0430/0632/8995/files/raxuradanag.pdf
    • https://cdn.shopify.com/s/files/1/0437/5258/7415/files/37051223059.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75904593322.pdf
    • https://cdn.shopify.com/s/files/1/0429/2545/7575/files/49680494812.pdf
    • https://cdn.shopify.com/s/files/1/0427/8861/8396/files/mariners_seating_chart.pdf
    • https://cdn.shopify.com/s/files/1/0437/8161/9861/files/zesufafarufipatu.pdf
    • https://cdn.shopify.com/s/files/1/0434/1324/2005/files/supply_chain_management_ebook_download.pdf
    • https://cdn.shopify.com/s/files/1/0427/4687/1974/files/tatedivogoxaropi.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_off00005033.bin
2dfbcae5db69475f28877ad0cbc76202d8f7a6bce861d83fa81f18e5d932d9c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5033 5520 bytes
font_01_sfnt_off000062ff.bin
60a8c62bbedcf37ae75cc0bace4bde15a6fd9cb0499d862639351e411e170b32		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62FF 11384 bytes

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