Malicious PDF — malware analysis report

Static analysis result for SHA-256 48ba1e50aaebdc8e…

MALICIOUS

PDF

37.1 KB Created: 2020-08-16 18:26:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 81403423e78694e56b84b7a7c5f53ceb SHA-1: 343292ea50a04fde4d9854a68622312466b6066a SHA-256: 48ba1e50aaebdc8e2a59861cbc70137aba9f4aaec42c5aa668ef6bd7ca74afc0
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to the presence of a large number of embedded links, a technique often used in SEO link farms to manipulate search engine rankings or distribute malicious content. One critical heuristic flagged a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=chamatkar+film+ke+gane', indicating a probable phishing or scam attempt. The document body contains garbled text and embedded URLs, further supporting the malicious intent.

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=chamatkar+film+ke+gane
    • http://files.sweetarrowfarm.com/uploads/1/3/0/8/130814601/a99885e3df4d844.pdf
    • http://files.gietal.net/uploads/1/3/1/8/131857305/lupitefi-paxababejepawuz-zanedekan.pdf
    • http://miwoxaj.acollinsedu.com/uploads/1/3/1/4/131437619/a00900.pdf
    • https://cdn.shopify.com/s/files/1/0434/8506/9478/files/john_deere_2640_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/2992/8872/files/magic_jack_installation.pdf
    • https://cdn.shopify.com/s/files/1/0438/6163/9318/files/nulovusav.pdf
    • https://cdn.shopify.com/s/files/1/0437/4872/0789/files/barisan_deret_aritmatika_dan_geometri.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/19085525902.pdf
    • https://cdn.shopify.com/s/files/1/0440/5942/6968/files/definition_of_community_pharmacy.pdf
    • https://cdn.shopify.com/s/files/1/0432/2390/8520/files/wikukofuwusoruwi.pdf
    • https://cdn.shopify.com/s/files/1/0448/1220/6241/files/58527124718.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_off00004766.bin
ad6efa0c6deab7e6d3024479a41905619be472c11f70ab777af26cab24d5ed38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4766 4768 bytes
font_01_sfnt_off0000576d.bin
88ba93c7cb327f1bffd38757a1ee7efef28e258c5405705939a9a5d3aa95b997		 pdf-font-stream PDF embedded font (sfnt) at offset 0x576D 10140 bytes
font_02_sfnt_off000079fd.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79FD 4324 bytes

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