Malicious PDF — malware analysis report

Static analysis result for SHA-256 310b2fc3f125d904…

MALICIOUS

PDF

66.8 KB Created: 2020-08-19 04:05:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66959b30ba72ba4a91c720ea1f4a1f6e SHA-1: 7ebb70afb21a205adcaa4c096ec2ef3133e65f0a SHA-256: 310b2fc3f125d904867cecf8cb153cebd169f8e92ab09ab885362ac31099c6fa
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, with a critical heuristic firing indicating a link farm and a malicious redirector. The primary malicious URL identified is https://ttraff.ru/pify?keyword=aankhon+se+kajal+ki+tarah, which is likely used to direct users to further malicious content. The document body itself contains garbled text and some of the URLs, suggesting it's primarily a container for these links rather than user-facing content.

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=aankhon+se+kajal+ki+tarah
    • http://wumowini.atllead.com/uploads/1/3/1/4/131454065/tenizuk.pdf
    • http://files.jorpasimart.com/uploads/1/3/1/8/131856326/90d0772b3.pdf
    • https://cdn.shopify.com/s/files/1/0431/2812/7645/files/98112647132.pdf
    • https://cdn.shopify.com/s/files/1/0432/6470/4662/files/wisajivepalibuxom.pdf
    • https://cdn.shopify.com/s/files/1/0437/5448/7957/files/ketinuzavobopulopewe.pdf
    • https://cdn.shopify.com/s/files/1/0431/4379/0760/files/voxatugiragorotip.pdf
    • https://cdn.shopify.com/s/files/1/0430/0043/0746/files/44498613683.pdf
    • https://cdn.shopify.com/s/files/1/0429/8699/5863/files/38211057552.pdf
    • https://cdn.shopify.com/s/files/1/0438/7792/5019/files/2383905300.pdf
    • https://cdn.shopify.com/s/files/1/0433/8355/4202/files/current_affairs_awards_2020_download.pdf
    • https://cdn.shopify.com/s/files/1/0438/1740/2530/files/girigasurifokove.pdf
    • https://cdn.shopify.com/s/files/1/0434/9663/6580/files/fusionner_2_foxit.pdf
    • https://cdn.shopify.com/s/files/1/0429/1143/2867/files/3451457867.pdf
    • https://cdn.shopify.com/s/files/1/0433/4547/7783/files/fubowemonekipok.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_off0000ca29.bin
5b89ec73480eb8e17d978f715d589258c7a2d58a94301cda092a993a808775db		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCA29 4900 bytes
font_01_sfnt_off0000dacb.bin
31b0b2ec28a72588e135864bbbd9f45dbe39f0f7fd598788a2684658c1b85858		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDACB 10412 bytes

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