Malicious PDF — malware analysis report

Static analysis result for SHA-256 713e43ab1cfc77de…

MALICIOUS

PDF

52.4 KB Created: 2020-10-15 20:40:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 8c71b85a955bf6663aa6b96bc7b1a48a SHA-1: 95e3aff996594b34dcaa83155a6f87353b83360a SHA-256: 713e43ab1cfc77dec095a4e70bc0f7e940d9248dd2dc689b515fa1b096b3618a
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://ggtraff.ru/123?keyword=santos+dumont+biografia+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366306/normal_5f874b16bb763.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367005/normal_5f887caed54ee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368488/normal_5f8774fdab65c.pdfIn PDF document text
    • https://site-1041857.mozfiles.com/files/1041857/92109390387.pdfIn PDF document text
    • https://site-1048567.mozfiles.com/files/1048567/luleso.pdfIn PDF document text
    • https://sepikupi.weebly.com/uploads/1/3/0/7/130738949/449102.pdfIn PDF document text
    • https://xufolonul.weebly.com/uploads/1/3/2/6/132695880/0c01f0d.pdfIn PDF document text
    • https://jukafubu.weebly.com/uploads/1/3/0/8/130874261/636933.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366377/normal_5f87484b2a186.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365652/normal_5f87cc2c0566f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366041/normal_5f8882e33c3e5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366957/normal_5f872c824424b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/5c540827-e435-42a4-b6f5-3b1314d1d508/72652201777.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/03d9ab25-5c74-40ce-89c2-dd5bd8d37f16/82144591031.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0493/2186/9471/files/math_umn_courses.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8211/1390/files/wynn_lake_of_dreams_location.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5346/5243/files/body_cavities_diagram_with_organs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0306/7038/files/watch_black_widow_2010_online_free.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007e8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E8C 5336 bytes
SHA-256: 36191fd70a5c6e6c9747c3580a1a98f15608186b7110c828a1bfc3eef745ff10
font_01_sfnt_off00009079.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9079 10908 bytes
SHA-256: 9fbcc905cae17193f5dd75612a672baeb0fbf0f2aefb2a8d54a14051601e687e
font_02_sfnt_off0000b448.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB448 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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