Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b59d5175f7d29e5…

MALICIOUS

PDF

46.2 KB Created: 2020-08-29 22:13:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 783f2218af33449ebc5283407c6d4cee SHA-1: 7b0d5ad71ad8d92f78324128fbfc0e1d28ce4cee SHA-256: 3b59d5175f7d29e54fcae90cdc7d23b630fe3fa325c0e5ea7ac834cc5f3226c7
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, embedding numerous URLs, many of which point to Shopify-hosted PDFs. One embedded URL, 'https://ttraff.ru/wix?keyword=is+rna+double+stranded', is flagged as a malicious redirector. This suggests a social engineering attempt to lure users to malicious infrastructure, potentially for further exploitation or phishing.

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/wix?keyword=is+rna+double+stranded
    • https://cdn.shopify.com/s/files/1/0430/0675/4970/files/azure_blob_url_format.pdf
    • https://cdn.shopify.com/s/files/1/0433/8463/5544/files/76656557194.pdf
    • https://cdn.shopify.com/s/files/1/0434/0151/1068/files/juropivomepagoramaxu.pdf
    • https://cdn.shopify.com/s/files/1/0437/4655/8106/files/holistic_theory_of_development_steiner.pdf
    • https://cdn.shopify.com/s/files/1/0429/0743/5167/files/ascension_press_chosen_faith_formation.pdf
    • https://cdn.shopify.com/s/files/1/0436/8020/2905/files/lopufutafe.pdf
    • https://cdn.shopify.com/s/files/1/0434/7694/3000/files/somuri.pdf
    • https://cdn.shopify.com/s/files/1/0437/7817/9221/files/florida_drivers_license_manual_2015.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mirogorozizodixomalejog.pdf
    • https://cdn.shopify.com/s/files/1/0429/9869/4042/files/analogias_ejercicios_para_resolver.pdf
    • https://static.usrfiles.com/ugd/b8c837_222507c7f79c4b5098767eedd9a08b32.pdf
    • https://static.usrfiles.com/ugd/b8c837_f54f9318435f4cac88e1bd6d3ad48bfb.pdf
    • https://static.usrfiles.com/ugd/b8c837_5fae1981a58441c5b2a9f72fd19e324e.pdf
    • https://static.usrfiles.com/ugd/b8c837_d848dcfe411946d194bb6a3471ffe9de.pdf
    • https://static.usrfiles.com/ugd/b8c837_99ea93d438a34e9a980688eeb3c53495.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_off00006bcb.bin
49cff07865502c0f09a025779d3dc65c3bfee1ab25596505c67c19a2f566f7ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BCB 4732 bytes
font_01_sfnt_off00007bd3.bin
16810dc04a1bb75d47ab75846ae1cf089b843c77927e014c788783195e38a9aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BD3 9940 bytes
font_02_sfnt_off00009dd6.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9DD6 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.