Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2b9ac699ed9a098…

MALICIOUS

PDF

42.5 KB Created: 2020-08-24 14:50:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4faea6a9ce1f36effef501de41c48d4f SHA-1: b956448f92bf7fba3dd5db285e002a742bf37608 SHA-256: c2b9ac699ed9a098a0b245c23eb8c8c2c7be2e5c40c99386ae3871f67642c739
120 Risk Score

Malware Insights

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

The PDF file contains a deceptive title and embeds a large number of links, many of which point to benign Shopify domains but are likely part of a link farm to improve SEO for malicious content. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is designed to obscure the final malicious destination. The document body itself is heavily corrupted, but the presence of the malicious redirector URL and the link farm structure strongly suggest a social engineering attempt to lead the user to harmful 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.cc/pify?keyword=corrupted+mods+guide
    • http://files.azhealthpath.com/uploads/1/3/1/8/131871938/zejon.pdf
    • http://sewoz.bendigounited.com/uploads/1/3/1/3/131381204/mixijofuji_wodoruji_guvesag.pdf
    • http://files.andrewcareyphotography.com/uploads/1/3/0/7/130738681/321cb0e95942.pdf
    • http://sevetipu.mountaingrovelutheranparish.com/uploads/1/3/0/8/130814758/fexenefoleba.pdf
    • http://files.pukasurf.com/uploads/1/3/1/4/131437983/ruruvowoma_morojuzimo.pdf
    • https://cdn.shopify.com/s/files/1/0435/3982/4799/files/conditional_probability_examples.pdf
    • https://cdn.shopify.com/s/files/1/0437/6153/3082/files/one_summer_s_day_piano_sheet_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/8127/7342/files/pictures_for_sad_children.pdf
    • https://cdn.shopify.com/s/files/1/0437/7768/7706/files/briggs_stratton_5500_watt_generator_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/3914/6662/files/moponumo.pdf
    • https://cdn.shopify.com/s/files/1/0432/2564/5211/files/jojumo.pdf
    • https://cdn.shopify.com/s/files/1/0433/4393/7690/files/32081391275.pdf
    • https://cdn.shopify.com/s/files/1/0435/5670/0319/files/10631783125.pdf
    • https://cdn.shopify.com/s/files/1/0429/5426/0633/files/2006_toyota_sienna_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/4477/2759/files/ralph_kimball_data_warehouse_toolkit.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_off000069ce.bin
66dbc72f6d081cc61839e3a0074f73b93f34697032cc75ed96e93df2b71bc9f6
pdf-font-stream PDF embedded font (sfnt) at offset 0x69CE 4940 bytes
font_01_sfnt_off00007a85.bin
7d0174888c842d8e83fa88f877e33a4626de8d1ba6d2db4642363aac220d1abc
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A85 10244 bytes