Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbb0052258d98f4e…

MALICIOUS

PDF

35.4 KB Created: 2020-08-10 15:03:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dda67121e0bbc9e248b9d32ea26b8d3b SHA-1: 5184bce7d37c5d9303c6f67aa9cb4888191a439f SHA-256: bbb0052258d98f4ec635994c8bae23f04d91ad68a1660d81a5ceabd3e270a1d2
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to ttraff.com. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The ML classifier also strongly flagged this PDF as malicious. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or phishing pages.

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.com/pify?keyword=graphic+anatomy+atelier+bow+wow+pdf
    • http://files.livwigencarswell.com/uploads/1/3/0/8/130874467/jigapelorem.pdf
    • http://files.johnwoodland.info/uploads/1/3/1/8/131872198/wijoke.pdf
    • http://files.pinewoodsmontessori.com/uploads/1/3/1/4/131437172/7136088.pdf
    • http://files.clowncabaretnight.com/uploads/1/3/1/4/131408103/wanobinogijagu-nibededo-gajojorak.pdf
    • https://cdn.shopify.com/s/files/1/0440/0755/5222/files/lanipe.pdf
    • https://cdn.shopify.com/s/files/1/0437/8702/6590/files/70021149512.pdf
    • https://cdn.shopify.com/s/files/1/0432/0165/9043/files/capillary_tube_viscometer.pdf
    • https://cdn.shopify.com/s/files/1/0429/8702/8641/files/30346884236.pdf
    • https://cdn.shopify.com/s/files/1/0432/4553/5400/files/office_365_administrator_guide.pdf
    • https://cdn.shopify.com/s/files/1/0428/4992/7327/files/12590904983.pdf
    • https://cdn.shopify.com/s/files/1/0432/9819/3573/files/sobaxifejoga.pdf
    • https://cdn.shopify.com/s/files/1/0431/4903/3640/files/tv_broadcasting_filipino_script.pdf
    • https://cdn.shopify.com/s/files/1/0435/9569/4239/files/irs_publication_550.pdf
    • https://cdn.shopify.com/s/files/1/0447/1242/7674/files/speed_distance_time_formula.pdf
    • https://cdn.shopify.com/s/files/1/0431/7170/9092/files/definition_and_scope_of_forensic_science.pdf
    • https://cdn.shopify.com/s/files/1/0433/2729/1544/files/15017049553.pdf
    • https://cdn.shopify.com/s/files/1/0435/2029/5064/files/lodadosegokivamusoxep.pdf
    • https://cdn.shopify.com/s/files/1/0435/2360/4631/files/95967056140.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_off00004b75.bin
2086c49b96261968b00a4d8f5da1fb2366ac6ad464fc1cea516f891992105108		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4B75 5584 bytes
font_01_sfnt_off00005e5a.bin
299a1fe9e55aaa6e4b1ff9177f1bca9742a7cd7de31e9ba4a97a529da651467f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E5A 10156 bytes

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