Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2232f38cbc34bc5…

MALICIOUS

PDF

36.8 KB Created: 2020-11-04 05:42:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11
MD5: 223e798a2527e57324a4ce63bcf6cd7e SHA-1: 548451a1f9ab7dad21ecb8448c3eca71e5340ae2 SHA-256: c2232f38cbc34bc565c33c9e9c61b45615fc3da3128b85fcdb23ff4191478800
124 Risk Score

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 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://ttraff.me/123?keyword=turkey+gobble+gobble+funny+images In PDF document text
    • https://mefemanodi.weebly.com/uploads/1/3/1/4/131454269/ruwezis-noxaxojol-bedexi.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/xereromejiv-koxozirusoror-moxonujis.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/ratot_muweliwamopoj.pdfIn PDF document text
    • https://fewevivib.weebly.com/uploads/1/3/0/8/130813821/vititobiwisib.pdfIn PDF document text
    • https://bovitala.weebly.com/uploads/1/3/4/4/134497817/bf40949ac8ac.pdfIn PDF document text
    • https://xijonezamo.weebly.com/uploads/1/3/1/4/131407630/6600921.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/moduxanakuri/fgo_angra_mainyu_rate.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51d3c04b-ec14-401f-8af7-4dc87a33889e/mozizozamofabudokawaved.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c67ac891-6efb-43b2-af9a-8292d1e4fc76/86048293302.pdfIn PDF document text
    • https://s3.amazonaws.com/vasagesorajirem/fake_gps_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/pesetufavo/fejiriduvotinulagavopus.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004fcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FCD 5344 bytes
SHA-256: 21cdb53d66e19c026309adbaf7a459bd6865e0148ce5cf4e32e87ae7333c14d0
font_01_sfnt_off000061f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F5 10868 bytes
SHA-256: ff72a2b16104fb9f1203e8f8a1d8ee3d3cfd847f1c0c8316c86339abe695f9c8