Malicious PDF — malware analysis report

Static analysis result for SHA-256 49ae992b246fa1bb…

MALICIOUS

PDF

37.1 KB Created: 2020-08-25 14:29:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: baa5973c8905135818ceb44d73688a5a SHA-1: 2bcaea6d73e9793f2a1240fffcf3fc5cc3c84cb5 SHA-256: 49ae992b246fa1bb6d2deecb37db191b04e3b9e14fec7820859f29547fe17245
150 Risk Score

Malware Insights

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

The PDF document contains a lure related to a 'Bosch 12v cordless drill manual' which, upon inspection, is a link farm. The primary malicious URL identified is https://ttraff.ru/pify?keyword=bosch+12v+cordless+drill+manual, which is a known malicious redirector. The document's structure and embedded links indicate a tactic to drive traffic to malicious infrastructure, likely for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=bosch+12v+cordless+drill+manual
    • http://files.shineworksdetailing.com/uploads/1/3/1/0/131069899/2258955.pdf
    • http://nuleta.cchsmo.org/uploads/1/3/1/3/131384778/95e8fe246cf8.pdf
    • https://cdn.shopify.com/s/files/1/0435/1305/3338/files/business_process_management_systems_strategy_and_implementation.pdf
    • https://cdn.shopify.com/s/files/1/0434/6698/1542/files/22055731962.pdf
    • https://cdn.shopify.com/s/files/1/0437/7369/0017/files/gopovasenemopededu.pdf
    • https://cdn.shopify.com/s/files/1/0430/8631/5682/files/45486065484.pdf
    • https://cdn.shopify.com/s/files/1/0435/7586/9599/files/60885427622.pdf
    • https://cdn.shopify.com/s/files/1/0433/7444/4694/files/exercises_on_present_simple_tense.pdf
    • https://cdn.shopify.com/s/files/1/0432/9262/3001/files/besiwupixol.pdf
    • https://cdn.shopify.com/s/files/1/0428/9282/0643/files/vowofinis.pdf
    • https://cdn.shopify.com/s/files/1/0432/2122/1533/files/tetaxubolixomerukesak.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_off00004b04.bin
1e595a0f42ee7b1c6bbec115065f8aa1a9b003d8429db489ab6f9a9f80ea2d9a
pdf-font-stream PDF embedded font (sfnt) at offset 0x4B04 5472 bytes
font_01_sfnt_off00005d82.bin
df895ba6b3e5a8c43a619fed880ca31cafc68626afdb4c90768211d5ebafdbc9
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D82 13544 bytes