Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3bf5e9ce89d6b4a…

MALICIOUS

PDF

39.3 KB Created: 2020-08-12 08:40:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3bbd6644491d8a50cba5eaf7c5816aa3 SHA-1: 435587fef5375ada06fda2fe714241bfe8623b15 SHA-256: c3bf5e9ce89d6b4a8b16893c1267135c5678ae3672a1c68666153003b36be35b
120 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. One critical heuristic firing indicates a direct link to a known malicious redirector at 'https://ttraff.com/pify?keyword=determination+of+iodine+value+experiment+pdf'. While many other links point to benign Shopify domains, the presence of the malicious redirector is a strong indicator of malicious intent. No scripts were extracted from this sample.

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=determination+of+iodine+value+experiment+pdf
    • http://files.woodlandstuition.com/uploads/1/3/0/7/130775952/wekozivi.pdf
    • http://zokesul.familyconstellation.net/uploads/1/3/1/6/131607600/5622141.pdf
    • http://files.approachapparel.com/uploads/1/3/1/3/131383664/8009279.pdf
    • http://files.mknutritionsystems.com/uploads/1/3/1/3/131383924/2703736.pdf
    • https://cdn.shopify.com/s/files/1/0436/2030/3006/files/12092210711.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78986196578.pdf
    • https://cdn.shopify.com/s/files/1/0430/8919/9268/files/basic_linux_commands_for_freshers.pdf
    • https://cdn.shopify.com/s/files/1/0432/0873/6936/files/typing_agent_hacks.pdf
    • https://cdn.shopify.com/s/files/1/0437/6503/9261/files/xiponunusojetifekorosipom.pdf
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/automobile_engineering_in_tamil.pdf
    • https://cdn.shopify.com/s/files/1/0429/5373/6351/files/lawekowejokonus.pdf
    • https://cdn.shopify.com/s/files/1/0431/5653/7495/files/nijubimifutavolidepu.pdf
    • https://cdn.shopify.com/s/files/1/0434/4948/3426/files/tecumseh_engine_manuals.pdf
    • https://cdn.shopify.com/s/files/1/0428/1883/0503/files/88986634892.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_off00005c47.bin
3a71e467c6409dba42f909cc386ef6c4bbf2afacfbf7903ec00a1e1220ce1625		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C47 5136 bytes
font_01_sfnt_off00006db2.bin
76093486b28e27809a7373b2f31dfab513ca4c0653cb0f95f23e5b55392b0af5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DB2 10080 bytes

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