Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bd561947367c382…

MALICIOUS

PDF

71.5 KB Created: 2021-02-26 09:38:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 08ed065d6a9abcc8fb39e6982b2d433e SHA-1: f3d29f39518fe5740c2a403acb2fd1191b429bb8 SHA-256: 1bd561947367c3828b7e015e204d2bc327cbe3fb5c382d0adb0f0d4d0fe11d4a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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://jacksth.ru/wix?keyword=sex+education+parents+guide PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4479470/normal_5fc744a76ffe1.pdfIn PDF document text
    • https://cdn.sqhk.co/vasibejovej/jcgcjgt/super_fancy_pants_adventure_gameplay.pdfIn PDF document text
    • https://cdn.sqhk.co/dikizumi/ijdgdgd/real_tiktok_followers_no_human_verification.pdfIn PDF document text
    • https://zikepasut.weebly.com/uploads/1/3/4/1/134108801/taxapajedajapu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481270/normal_60368c441f4ff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422148/normal_60143b7dcdd0d.pdfIn PDF document text
    • https://cdn.sqhk.co/kevekelobivo/lQhgJje/dragon_city_game_cheats.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412160/normal_6030fecbe4d99.pdfIn PDF document text
    • https://wewejemaviga.weebly.com/uploads/1/3/4/2/134235466/sisixumewikakoj-xowudu.pdfIn PDF document text
    • http://jamotovoxut.mywebcommunity.org/13367669120.pdfIn PDF document text
    • https://lomizagufefeg.weebly.com/uploads/1/3/4/0/134096038/6430782.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://safubifulaxoxe.rf.gd/ces_2019_tech_trends.pdfIn PDF document text
    • http://zotubune.myartsonline.com/durofavodeseboj.pdfIn PDF document text
    • http://tiluxusimutine.atwebpages.com/hunter_pet_dps_classic.pdfIn PDF document text
    • http://zitasixan.atwebpages.com/fe_review_manual_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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dd4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD4D 5380 bytes
SHA-256: a31615b3ba025093820a355ae0a196d5674315eb74fc5539c5684447aa1d085a
font_01_sfnt_off0000efac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFAC 9860 bytes
SHA-256: aca59c9d1905b051cd34c0b95c53509db5612a98e598580df0aa569b143d8ce8