Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcb27ee2f0f7769a…

MALICIOUS

PDF

69.0 KB Created: 2021-02-18 16:35:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 8e82614ec8c4121cdc3f9823631c3e05 SHA-1: 8363f565d0b9c580a1fee8fa94aa02c348e04099 SHA-256: bcb27ee2f0f7769a0913ed65854abd03c52896d86a2d1b1021c3c5cd81daefc4
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://maypoin.ru/wix?keyword=insinkerator+pro+ss+4+manual PDF link annotation
    • http://bezigex.iblogger.org/my_heart_and_other_black_holes_book_summary.pdfIn PDF document text
    • http://wspring.space/wafetesbdqxg.pdfIn PDF document text
    • https://bewimowijukoja.weebly.com/uploads/1/3/4/5/134584545/datufawaleva_gexuzedifor.pdfIn PDF document text
    • https://xuzitimezavut.weebly.com/uploads/1/3/1/8/131856372/bff3e7204ac.pdfIn PDF document text
    • https://mubatizusilaboj.weebly.com/uploads/1/3/4/4/134475350/paduranakaj.pdfIn PDF document text
    • http://fudopanazi.22web.org/deferred_tax_calculation_template.pdfIn PDF document text
    • http://kmplitka.shop/starbucks_consumer_behavior_case_stu68y0v.pdfIn PDF document text
    • https://pozefixinez.weebly.com/uploads/1/3/1/4/131454190/1952900.pdfIn PDF document text
    • https://pebezudaxefen.weebly.com/uploads/1/3/4/3/134347708/1658694.pdfIn PDF document text
    • http://winoraama.fun/trader_joes_frozen_turkey_burgers_cooking_instructions82rxx.pdfIn PDF document text
    • http://vizuwubifazezix.22web.org/56065027427.pdfIn PDF document text
    • http://fezibinuzot.iblogger.org/all_pokemon_3ds_roms_free.pdfIn PDF document text
    • http://nasporte1.fun/kitchenaid_pasta_cookbooktdelb.pdfIn PDF document text
    • https://roralolew.weebly.com/uploads/1/3/0/7/130775143/bilupozagafi-tagitujalobove.pdfIn PDF document text
    • https://jitipukojid.weebly.com/uploads/1/3/4/7/134707402/40bae1.pdfIn PDF document text
    • http://dalkomis.website/6749903884108h5k.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nomulumipal.rf.gd/dream_from_my_father_barack_obama.pdfIn PDF document text
    • https://s3.amazonaws.com/wifiduxezo/bebo_video_song_kambakkht_ishq.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_off0000d1c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1C9 5056 bytes
SHA-256: f255ec2de51c9b1dc717045e47fe2f3ee432aa82a82db2512ada9bd6007329d4
font_01_sfnt_off0000e2eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2EB 10428 bytes
SHA-256: b32eac6c368f32be7d8cc19c7a59633f3a1e624d555d6391d182ee88b5819916