Malicious PDF — malware analysis report

Static analysis result for SHA-256 e82a964bb029e147…

MALICIOUS

PDF

67.2 KB Created: 2021-02-15 03:15:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 28809e6844083f84b1b879c35827179a SHA-1: a1dd74b5762b5a1b688cbe146769ea6c264e978b SHA-256: e82a964bb029e1475cc561cb5ad2a3ca702790b5c4ecdd9d71e1ac6d45ce62a1
244 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
  • 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.
  • 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.
  • 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=keystone+church+ankeny+service+times In PDF document text
    • https://cdn.sqhk.co/fomeluxilim/hidibig/60742911445.pdfIn PDF document text
    • https://cdn.sqhk.co/zepipawetopi/gjhehep/57292556661.pdfIn PDF document text
    • https://cdn.sqhk.co/xudekutof/ghekzCx/like_a_boss_meme_song_lyrics.pdfIn PDF document text
    • https://bewepuxajijasi.weebly.com/uploads/1/3/4/3/134362307/8670488.pdfIn PDF document text
    • https://cdn.sqhk.co/ribegibonot/hhi2nih/spider_rope_hero_vice_town_hack_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/golomamone/Nhghdjg/how_to_cook_packaged_spaghetti_squash_noodles.pdfIn PDF document text
    • https://cdn.sqhk.co/kafufojugure/iax2Whf/torajapezanobupilorejiju.pdfIn PDF document text
    • https://cdn.sqhk.co/pasivuzuke/jcGgcii/knock_down_door_frame_with_sidelight.pdfIn PDF document text
    • https://cdn.sqhk.co/ruxukulalodi/idGTWhc/jusedasepoxidanagowuru.pdfIn PDF document text
    • https://motetokazifizi.weebly.com/uploads/1/3/4/8/134885494/9c2292bb923f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422627/normal_601fef1b8bf74.pdfIn PDF document text
    • https://zokelafeg.weebly.com/uploads/1/3/4/8/134889419/xapavafu-mawegewiwukusu-gadegub-xavakiruwo.pdfIn PDF document text
    • https://cdn.sqhk.co/bomemenun/gffIihE/5223028219.pdfIn PDF document text
    • https://sirofutalaga.weebly.com/uploads/1/3/4/7/134706343/6577020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409417/normal_5fe91e8a8f19a.pdfIn PDF document text
    • https://xowozasa.weebly.com/uploads/1/3/3/9/133999953/4640041.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sobikunukozi.rf.gd/zukiresufudozuzigegek.pdfIn PDF document text
    • http://rowisumemosil.rf.gd/toxicwap_free_tv_series.pdfIn PDF document text
    • http://vedajimiti.rf.gd/67156561275.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_off0000ca8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA8F 5200 bytes
SHA-256: 114db5c56f21074a7bea2bbea3fbb3e6279accad063736a5b5e09976671bdf1a
font_01_sfnt_off0000dc25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC25 10436 bytes
SHA-256: 404d3d9df256f51833fe834bdc0158cc74a4510ca428df9cef4ce61f0e3cda35