Malicious PDF — malware analysis report

Static analysis result for SHA-256 92da9982394b6186…

MALICIOUS

PDF

44.7 KB Created: 2020-08-22 08:31:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f477ca68a9b46cb3d7bbf99b44de9806 SHA-1: 7fdbe37355047f94e5eaf6c231baa05ae34ffa79 SHA-256: 92da9982394b61869171632ef3b9af2206dfe7e139382c873412fb4328ed3ebd
152 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, pointing to 'https://ttraff.cc/pify?keyword=jbl+charge+3+bluetooth+speaker+driver'. This URL is presented within the document body, disguised as a download link for a 'Jbl charge 3 bluetooth speaker driver'. The PDF also contains a mass external PDF link farm, with many links pointing to Shopify domains, likely for SEO manipulation to improve search engine ranking for malicious content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=jbl+charge+3+bluetooth+speaker+driver
    • http://mixaruja.ancestralmatters.com/uploads/1/3/2/7/132712109/padiwe-tizarujawizeni-nenuvelido-wofubopirar.pdf
    • http://files.clarkejduggan.com/uploads/1/3/0/8/130873738/sizokesudiwuno.pdf
    • http://files.kickplex.co.uk/uploads/1/3/1/1/131164355/5606755.pdf
    • http://vumorafew.stalbansdavenport.net/uploads/1/3/1/4/131437502/xiganatibezoxi-fagena-jogabudif-zegojum.pdf
    • http://files.rsweddingaffair.com/uploads/1/3/0/9/130969835/moxuxanaxobem.pdf
    • https://cdn.shopify.com/s/files/1/0434/1471/6572/files/rifonu.pdf
    • https://cdn.shopify.com/s/files/1/0437/7618/0376/files/abdomen_anatomy_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0431/0351/8887/files/nebaraxiwupo.pdf
    • https://cdn.shopify.com/s/files/1/0436/9245/8152/files/nyc_bike_path_map.pdf
    • https://cdn.shopify.com/s/files/1/0434/7609/1045/files/suvix.pdf
    • https://cdn.shopify.com/s/files/1/0448/0398/1463/files/aminofilina_injetavel_bula.pdf
    • https://cdn.shopify.com/s/files/1/0429/6795/7660/files/backlash_in_gears.pdf
    • https://cdn.shopify.com/s/files/1/0430/0252/7895/files/jajolafokiv.pdf
    • https://cdn.shopify.com/s/files/1/0429/8548/8543/files/getigudukogatu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0346/9206/files/69922527352.pdf
    • https://cdn.shopify.com/s/files/1/0427/9664/6556/files/detuxikogunebeli.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_off00006dcf.bin
c55f4c4a47c34525b65fd630b09833c5ae2b2bfbb4e249f2f9037dc5e521538f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DCF 5752 bytes
font_01_sfnt_off0000815b.bin
5e6cc0b0d1714a918bc293295b1f5c3d4a0f7c200ef10019aa415939b8264931		 pdf-font-stream PDF embedded font (sfnt) at offset 0x815B 10652 bytes

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