Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb2888b744a66ce7…

MALICIOUS

PDF

72.4 KB Created: 2021-03-02 23:21:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 05209b1e6616a0521a36104a58ffeb4f SHA-1: 538824bafe326d96ed346835a167069c455065d6 SHA-256: bb2888b744a66ce7ffbbd041386c57cbf5bf27865303934208308afb69d2f4da
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://botokaw.ru/wix?keyword=essentials+of+geometry+terms PDF link annotation
    • https://relujebaxarun.weebly.com/uploads/1/3/1/1/131164257/75a1032f61077bb.pdfIn PDF document text
    • https://fajupumivut.weebly.com/uploads/1/3/4/1/134108914/e25ee3515f.pdfIn PDF document text
    • https://vuzaruluweketex.weebly.com/uploads/1/3/4/4/134478477/4183325.pdfIn PDF document text
    • https://dimegowogox.weebly.com/uploads/1/3/3/9/133999821/4924fcd68.pdfIn PDF document text
    • https://mawobomogagot.weebly.com/uploads/1/3/4/1/134109187/bodibe.pdfIn PDF document text
    • http://raftgjgr.space/zalinexawovulogekananoparuy18v.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499633/normal_6001e38dda025.pdfIn PDF document text
    • http://rusewigojubilon.mygamesonline.org/variburar.pdfIn PDF document text
    • http://inscarusa.info/zuwokadq5ew2.pdfIn PDF document text
    • http://gejudoxe.mypressonline.com/73826875509.pdfIn PDF document text
    • http://perfectiona.online/dream_dictionary_baby_poopc9yws.pdfIn PDF document text
    • http://mebel-albero.ru/43593376134wdx42.pdfIn PDF document text
    • http://form-lnstagramverifiedbadges.com/biblical_meaning_of_the_number_60916txg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417128/normal_601b723a6bb0d.pdfIn PDF document text
    • https://romugazasemagop.weebly.com/uploads/1/3/4/8/134897733/521413.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rogofideb.onlinewebshop.net/how_to_do_apqp.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_off0000e01d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE01D 5148 bytes
SHA-256: 7da58762d2805c07ef77af82051962e45bac4b66bd35c00e3784364fd6f9b6ef
font_01_sfnt_off0000f198.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF198 10416 bytes
SHA-256: 229409e9d5bb31b02a22e428820abfabc3c87168976c8150deca29eb15c5f882