Malicious PDF — malware analysis report

Static analysis result for SHA-256 74449f5eafab2cf4…

MALICIOUS

PDF

68.5 KB Created: 2021-02-18 13:23:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 94f4978466be30e7790f32b5a14f56cd SHA-1: 99587419b0dec6753c621780c79a68e8200e23c7 SHA-256: 74449f5eafab2cf43e5f5488e7e9531d00c0222b09a6d60982494246c8abf29c
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/wix?keyword=lexus+club+terrace+236 PDF link annotation
    • https://cdn.sqhk.co/govibabika/dhc2pxo/death_worm_egg_ice_and_fire.pdfIn PDF document text
    • https://cdn.sqhk.co/jenotonolo/XlamhXy/rolling_stones_gimme_shelter_lyrics_deutsch.pdfIn PDF document text
    • http://cocobuka3.xyz/cut_the_cake_ball_gamen8o5j.pdfIn PDF document text
    • http://netewe5.xyz/sitogowukidufobinixarv85lj.pdfIn PDF document text
    • http://bitcoinlearningcentre.online/eheim_2217_manual0a2ru.pdfIn PDF document text
    • https://cdn.sqhk.co/tadawatimi/fhjhbjg/xedepuji.pdfIn PDF document text
    • http://gmetry.online/bhakti_gana_dj_mer9uwa.pdfIn PDF document text
    • https://vekowafonomi.weebly.com/uploads/1/3/4/6/134692424/9942280.pdfIn PDF document text
    • https://cdn.sqhk.co/fawabanof/Rqvhghi/pokemon_go_plus_target_australia.pdfIn PDF document text
    • https://cdn.sqhk.co/lanuniwa/Xz1djcu/braiding_salon_in_los_angeles_california.pdfIn PDF document text
    • http://gdztut.com/diary_template_2019j0wal.pdfIn PDF document text
    • http://vevolim.iblogger.org/connected._mcgraw-_hill_answer_key_algebra_1.pdfIn PDF document text
    • https://cdn.sqhk.co/wekaradukuve/GbZchgJ/tozulobenukasafed.pdfIn PDF document text
    • http://vizimuvorogo.22web.org/shark_sonic_duo_pads_uk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xubudexev.epizy.com/graduation_dinner_invitation_template_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_off0000d0ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0EE 5392 bytes
SHA-256: 49a842a6e0738a8aa985a88ea761e535162ee1bd32da43176e7671755fd7de4d
font_01_sfnt_off0000e353.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE353 9984 bytes
SHA-256: 92794ff4071754ef92e570d5c43b238f1669e1fc7390e69b12d4b85197c4a1c0