Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b57f58bf0f20c83…

MALICIOUS

PDF

84.5 KB Created: 2021-03-01 22:36:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 740c0dc474b2d46d2d793a64105bd893 SHA-1: ec7a21e097351d774b2ae5bf06dfc44a8bd71831 SHA-256: 9b57f58bf0f20c839b162af5fa772922cab436793ba212accfc4a5d7ee1a3b01
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://dugedepap.ru/123?utm_term=walmart+black+friday+11%252F14+in+store+ad PDF link annotation
    • http://the-glow.ru/babbar_movie_songe4gav.pdfIn PDF document text
    • http://likedizar.medianewsonline.com/tissot_t_touch_expert_solar_titanium_bedienungsanleitung.pdfIn PDF document text
    • http://kasyanbeauty.com/how_to_check_stock_market_graphhumlg.pdfIn PDF document text
    • http://kigumelez.medianewsonline.com/jonizetu.pdfIn PDF document text
    • https://cdn.sqhk.co/futevanu/rShe9ij/md_anderson_jobs_in_sugar_land_tx.pdfIn PDF document text
    • http://rilomenininun.getenjoyment.net/hp_elitebook_2760p_ram_slots.pdfIn PDF document text
    • http://beririka.scienceontheweb.net/3081415481.pdfIn PDF document text
    • http://greatmasters.biz/15849084257v2upp.pdfIn PDF document text
    • https://tuzakipimuvujuv.weebly.com/uploads/1/3/0/8/130813756/960473.pdfIn PDF document text
    • https://fiduludebiwoki.weebly.com/uploads/1/3/4/3/134317875/e2cd05f.pdfIn PDF document text
    • https://xekekulok.weebly.com/uploads/1/3/1/8/131857590/gogomu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/baposivarabuj/zugazofoworugow.pdfIn PDF document text
    • http://kubomefewofumim.atwebpages.com/vajoru.pdfIn PDF document text
    • https://s3.amazonaws.com/debiwelof/lademuwuzobulisemivum.pdfIn PDF document text
    • https://s3.amazonaws.com/laginekux/what_is_pennywise_the_clown_true_form.pdfIn PDF document text
    • https://s3.amazonaws.com/silubebebefuju/cuanto_es_50_gr_de_mantequilla_en_tazas.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fe75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE75 5452 bytes
SHA-256: f569e7206fe56c33bddab2907059ac8833964bcf257f14bfef71e1c70a6c5436
font_01_sfnt_off00011106.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11106 10984 bytes
SHA-256: cc18a8f6645f08ca2b64b0ae94619c0bcdcf90b7c8d4af7db62dcab7eecff9b6
font_02_sfnt_off0001369f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1369F 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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