Malicious PDF — malware analysis report

Static analysis result for SHA-256 800c5f25d2196863…

MALICIOUS

PDF

41.2 KB Created: 2020-08-14 00:21:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: de47122cb0294bb4ae7a3c38f84387b2 SHA-1: 1745522caa06517e7e34f7e752f80b7570372977 SHA-256: 800c5f25d2196863cd29629610393e62d800f9c650f61cac2db8b889eaef12f8
152 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific redirector URL that is known to be malicious. The document body, though heavily obfuscated, contains the malicious URL and references to other benign-looking PDFs hosted on Shopify. The primary malicious link is https://ttraff.com/pify?keyword=dota+underlords+composition+guide, which likely serves as a lure to redirect users to further malicious content.

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=dota+underlords+composition+guide
    • http://files.ffalapahafarm.com/uploads/1/3/1/4/131453252/fomuk-wigison.pdf
    • http://files.ecowoodbarsandmore.com/uploads/1/3/0/8/130814387/6572903.pdf
    • http://files.hkcofc.com/uploads/1/3/2/6/132683111/lobojevaresale_jojolurirukekof_nunaduwarutare_rulilik.pdf
    • http://files.humactive-formation.com/uploads/1/3/0/9/130969984/ziraxo.pdf
    • http://files.littlejsbakeshoppe.com/uploads/1/3/1/3/131380848/xivopipeximiw_revofupixoku.pdf
    • https://cdn.shopify.com/s/files/1/0433/9941/3925/files/tatoduti.pdf
    • https://cdn.shopify.com/s/files/1/0430/0718/0954/files/pajeduzeb.pdf
    • https://cdn.shopify.com/s/files/1/0437/1503/5288/files/dynamic_form_jquery.pdf
    • https://cdn.shopify.com/s/files/1/0435/1960/6936/files/luwevi.pdf
    • https://cdn.shopify.com/s/files/1/0437/6195/9069/files/48223478242.pdf
    • https://cdn.shopify.com/s/files/1/0430/7697/6791/files/xigifarolomodufasanomilos.pdf
    • https://cdn.shopify.com/s/files/1/0432/1171/8820/files/bubobepiboxan.pdf
    • https://cdn.shopify.com/s/files/1/0438/8651/0232/files/nicotra_axial_fan_catalogue.pdf
    • https://cdn.shopify.com/s/files/1/0440/9376/7832/files/bengali_short_story_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/9514/6139/files/using_google_adwords_and_adsense.pdf
    • https://cdn.shopify.com/s/files/1/0432/3885/0724/files/nupisuz.pdf
    • https://cdn.shopify.com/s/files/1/0429/1959/2099/files/asma_adultos_2020.pdf
    • https://cdn.shopify.com/s/files/1/0428/6365/7119/files/big_brother_spoilers_morty.pdf
    • https://cdn.shopify.com/s/files/1/0429/8830/6586/files/adoption_process_in_marketing.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_off0000621d.bin
03080950fe725487f6caf13e1036e6c747503ce6421ea47881c4be7bea1abd55		 pdf-font-stream PDF embedded font (sfnt) at offset 0x621D 5392 bytes
font_01_sfnt_off0000745a.bin
55471316932de2e23281b890278bdac236b59182c4ea38c7b9d518c789a16ffd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x745A 10420 bytes

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