Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a64ff836dc38802…

MALICIOUS

PDF

68.3 KB Created: 2021-02-14 20:53:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: c3c78dc5313fb451d6b0ef0258c2aaac SHA-1: 4949a007fabacfa39a7639b59bd5f497fc1aba0c SHA-256: 6a64ff836dc38802a8cfe01203d756338fac10af7272c2624d2fc6f646e2093d
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://druttle.ru/wix?keyword=abc+printable+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368954/normal_60245df22a8e0.pdfIn PDF document text
    • https://cdn.sqhk.co/fipufose/hbGigXC/gubasiwiba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407301/normal_6023ef7326718.pdfIn PDF document text
    • https://cdn.sqhk.co/molavagew/fjjiduk/nes_emulator_pro_apk_for_android.pdfIn PDF document text
    • https://zamosokajuzosa.weebly.com/uploads/1/3/4/6/134651904/f64642a.pdfIn PDF document text
    • https://cdn.sqhk.co/xudekutof/jayjaia/guess_the_celebrity_quiz_zoomed_in_picture.pdfIn PDF document text
    • http://vadukut.iblogger.org/equinox_flipfont_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425909/normal_600cb2559216e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402956/normal_5fed4713f05d7.pdfIn PDF document text
    • https://cdn.sqhk.co/gozawelesutu/h7kjcvv/mirin_cafe_coupon_code.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483591/normal_60089a3ceabaf.pdfIn PDF document text
    • https://manoxumumaxu.weebly.com/uploads/1/3/4/4/134472756/pepevidikizan_jepaxarugulavuf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tamugaza.rf.gd/el_camino_del_artista_online.pdfIn PDF document text
    • http://valamujunitun.epizy.com/nisuwojewimugegamewovetu.pdfIn PDF document text
    • http://zoketuru.epizy.com/xunedubipakepemijeveb.pdfIn PDF document text
    • http://tutivute.epizy.com/verakazovojit.pdfIn PDF document text
    • http://zudetifaxazuwe.rf.gd/53085860081.pdfIn PDF document text
    • http://wijetifosoxi.epizy.com/59161114336.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_off0000cf8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF8D 4960 bytes
SHA-256: f6b2f8979fd6dfe0eb71f195c6f2de6b4703467d8d25b799e9989538a04a4cd1
font_01_sfnt_off0000e07e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE07E 10440 bytes
SHA-256: 4ac0b05c3ae571cefebf70c18a9637239f4b016aafc7e6a8edf9caa6d1138d78

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