Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a43e761c6926ec5…

MALICIOUS

PDF

37.4 KB Created: 2020-08-15 18:39:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6cc561a0ab112d0c25dcbadeba324bef SHA-1: 1deb917caeac750e096e9e32d84131ea524d76d4 SHA-256: 1a43e761c6926ec54081cd1a1361888d60b68637f998c6c4a8ada28fbc732777
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com'. The document body also contains this URL, alongside numerous other URLs hosted on 'cdn.shopify.com' and other domains, suggesting a link farm designed to obscure the malicious destination. The primary malicious URL is 'https://ttraff.com/pify?keyword=asterix+y+los+pictos+pdf+gratis', which is likely used to redirect users to a malicious site.

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=asterix+y+los+pictos+pdf+gratis
    • http://files.goodatlooking.com/uploads/1/3/0/7/130775108/tilogavesarugimesevi.pdf
    • http://files.kaitlynnaisling.com/uploads/1/3/1/4/131453031/fofarizotil-vabemazilusira-ganewatizusi-zuritav.pdf
    • http://files.niloalcala.com/uploads/1/3/0/7/130740073/sumuxo.pdf
    • https://cdn.shopify.com/s/files/1/0433/6785/8334/files/physiology_of_glucose_metabolism.pdf
    • https://cdn.shopify.com/s/files/1/0434/1566/6840/files/90070861554.pdf
    • https://cdn.shopify.com/s/files/1/0431/8537/3333/files/faragosujusobimilujik.pdf
    • https://cdn.shopify.com/s/files/1/0434/5970/7037/files/fitatonolerowejogus.pdf
    • https://cdn.shopify.com/s/files/1/0431/4837/8280/files/77892191374.pdf
    • https://cdn.shopify.com/s/files/1/0438/6711/1584/files/30983072721.pdf
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/2017_ap_stylebook.pdf
    • https://cdn.shopify.com/s/files/1/0434/9624/3364/files/yet_another_bad_time_simulator.pdf
    • https://cdn.shopify.com/s/files/1/0430/6986/6133/files/mukoferawonorebaxejuma.pdf
    • https://cdn.shopify.com/s/files/1/0434/3257/5132/files/76886700678.pdf
    • https://cdn.shopify.com/s/files/1/0431/4005/5208/files/pidefapewixi.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_off00004428.bin
126c4f2d2fc41224928778b3cf9c7abeb99a2ec1eeba55ca3664e07ed7497b35		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4428 5164 bytes
font_01_sfnt_off000055dc.bin
a90dc52ac890e1d6e4d2ce9f818f6f30626e6f6f59156fa65c6ad8f47a583a22		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55DC 10812 bytes
font_02_sfnt_off00007937.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7937 4324 bytes

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