Malicious PDF — malware analysis report

Static analysis result for SHA-256 2be6fe9f71d12664…

MALICIOUS

PDF

42.4 KB Created: 2020-11-05 19:29:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 493f763e1dac2ded6f4f72839cbaab66 SHA-1: c286e10a2992306822efe56a47ef8468ef9ff48a SHA-256: 2be6fe9f71d12664bceafbeded943eb7a4f0e20dfd69a68192a33cf328a1222b
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffset.ru/aws?keyword=baldur+s+gate+npc+guide+steam PDF link annotation
    • https://tebefatudu.weebly.com/uploads/1/3/4/3/134329870/rimoxoto-noviveta.pdfIn PDF document text
    • https://fanawilixu.weebly.com/uploads/1/3/1/4/131408209/sabilal.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367633/normal_5f9030034069b.pdfIn PDF document text
    • https://gasuzenop.weebly.com/uploads/1/3/4/2/134266144/punusi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366987/normal_5f8750979df0f.pdfIn PDF document text
    • https://bubixoduxufito.weebly.com/uploads/1/3/1/0/131070588/tokux_weririwiniza_kebevizuz.pdfIn PDF document text
    • https://pudozewo.weebly.com/uploads/1/3/4/3/134311846/6032035.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415045/normal_5f9cfa459616a.pdfIn PDF document text
    • https://riragojefo.weebly.com/uploads/1/3/1/8/131857115/6565169.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/didowugorokirug/jutonewasaf.pdfIn PDF document text
    • https://s3.amazonaws.com/napisakaluja/roblox_accounts_free_with_robux.pdfIn PDF document text
    • https://s3.amazonaws.com/levumoduf/8_ball_pool_apk_mod_unlimited_coins_2019.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_off000064ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64CA 5440 bytes
SHA-256: 8871961144873fdb30a5d044af6129eced296318bca33eb1b4381ebfb7836f3f
font_01_sfnt_off00007738.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7738 11432 bytes
SHA-256: 5e562585df970a200be1cc6d044f976c4542c775e199e7fa8c945d2dda432454