Malicious PDF — malware analysis report

Static analysis result for SHA-256 abfe02f94fa620b4…

MALICIOUS

PDF

80.5 KB Created: 2021-02-16 11:30:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 528d2ae5a408e5d4156b1f36fa2398f2 SHA-1: 06d297fa9377f0bc640843c2ac03de9197b8a94b SHA-256: abfe02f94fa620b4016a50a491444a65ccee9b9ef958d97bd022537f4c0bd1c2
284 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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.
  • 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://yafferge.ru/wix?keyword=editor+apk+pro+root In PDF document text
    • https://cdn.sqhk.co/fazituku/jja3Dgh/gafezerirofaz.pdfIn PDF document text
    • https://popajilosofov.weebly.com/uploads/1/3/0/7/130776408/rumiba_fuzogek_pokonif_renovoziwe.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/nuvibolele.pdfIn PDF document text
    • https://babotiditufo.weebly.com/uploads/1/3/4/6/134694550/9107411.pdfIn PDF document text
    • http://lodujenoxo.iblogger.org/menuvuzajiw.pdfIn PDF document text
    • https://guditeni.weebly.com/uploads/1/3/4/5/134529862/zunowosinekotad.pdfIn PDF document text
    • http://geekcods.com/kawasaki_concours_zg1000_service_manual8ivei.pdfIn PDF document text
    • https://cdn.sqhk.co/mimofeto/L6pPOgd/36227840475.pdfIn PDF document text
    • https://cdn.sqhk.co/pixorikibam/zngerhf/election_watch_2020_ubs.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nowivopikuzud.epizy.com/80746671219.pdfIn PDF document text
    • http://dukizovisepo.rf.gd/97574714893.pdfIn PDF document text
    • https://s3.amazonaws.com/zagubip/43679829704.pdfIn PDF document text
    • http://lusiromipu.epizy.com/american_pie_5_full_movie_filmyzilla.pdfIn PDF document text
    • https://s3.amazonaws.com/sigobija/94520052584.pdfIn PDF document text
    • https://s3.amazonaws.com/kosamupim/bully_anniversary_edition_revdl.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_off0001003b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1003B 4764 bytes
SHA-256: b264512ba57c5616788a02cabdf146fa643ecf7f822a9b72886d67d25014535c
font_01_sfnt_off00011082.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11082 10964 bytes
SHA-256: 33b8eef23bbf81f367a4113993d0b13d7db41ea1972d414fe9f4d4bc635b79f4