Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ac160090d3045b7…

MALICIOUS

PDF

89.5 KB Created: 2021-03-29 04:22:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 1981155b7cca92bbe9263b86d95b9f40 SHA-1: f20b60b1c4750968aaa61715374eaf24bed1fa33 SHA-256: 8ac160090d3045b79ffb59e4c4cfbcf637683fe6915392ab426a3158beecb5e8
126 Risk Score

Malware Insights

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

This PDF file was flagged by ML classifiers and ClamAV as malicious, exhibiting characteristics of a phishing attempt. It contains numerous external links, including one pointing to 'lozipotod.ru', disguised as a user manual. The presence of embedded URLs and the PDF structure suggest an attempt to redirect the user to a malicious site, likely for payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 5

  • 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 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://lozipotod.ru/strik?utm_term=whirlpool+6th+sense+washing+machine+top+load+user+manual PDF link annotation
    • http://pycnidwzxc.info/2411138046fce56.pdfIn PDF document text
    • http://creditscoreusa.info/best_weight_loss_tracker_app13o50.pdfIn PDF document text
    • http://card2card.live/best_mental_toughness_books_for_athletesq8ous.pdfIn PDF document text
    • http://mufutekuson.getenjoyment.net/how_to_fix_turtle_beach_recon_70_mic_not_working.pdfIn PDF document text
    • http://butalinonoruma.scienceontheweb.net/junofakure.pdfIn PDF document text
    • http://revershjtb.site/macromolecules_review_worksheet_for_ap_biologyy0rww.pdfIn PDF document text
    • http://datab.vip/angry_birds_coloring_pages_free_printableq6cb9.pdfIn PDF document text
    • https://cdn.sqhk.co/piredonina/ZgijaLU/tactical_battle_simulator_mod_apk_1._8._2.pdfIn PDF document text
    • https://cdn.sqhk.co/valujoper/eigigjh/megabus_chicago_to_madison.pdfIn PDF document text
    • https://cdn.sqhk.co/zumedizojas/g6hhjfg/nopujivapote.pdfIn PDF document text
    • http://simcars.ru/66425353761v3ckb.pdfIn PDF document text
    • http://energierecrute-emplois.com/gowabobamonodolasuwezezqlb.pdfIn PDF document text
    • http://findssldz.xyz/the_black_prince_full_movie_in_punjabi_filmywap8ky0q.pdfIn PDF document text
    • http://susurrus.space/how_to_play_liars_dice_in_thieves_landingn0b7s.pdfIn PDF document text
    • https://cdn.sqhk.co/fikalibumi/d9ghfwW/39648834228.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lawubipala.epizy.com/fintrac_guidelines_1-_2_3_5.pdfIn PDF document text
    • http://rezumasalimod.epizy.com/79519663283.pdfIn PDF document text
    • http://vodobugatusexa.epizy.com/battleship_2_tamil_dubbed_movie_tamilrockers.pdfIn PDF document text
    • https://s3.amazonaws.com/jajoxulabojaso/how_to_change_the_belt_on_my_hoover_windtunnel.pdfIn PDF document text
    • http://peruroz.onlinewebshop.net/toutes_les_analyses_mdicales.pdfIn PDF document text
    • https://s3.amazonaws.com/kelukakeb/kipit.pdfIn PDF document text
    • https://s3.amazonaws.com/legipalofi/kanch_ki_chudiyan_song_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jolozidabi/kubota_v3300_engine_parts_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/povelenavuviw/digital_marketing_officer_salary_in_philippines.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010981.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10981 5748 bytes
SHA-256: 1b5b3e202d951f5da5a173dba2cda4a4c5686abefa00e6e554b0bca83f16a8b9
font_01_sfnt_off00011cf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CF7 10980 bytes
SHA-256: 4ee497ce4c2278758a3f85823ab25b641fb69a32a335455179fcbb239a71ca8b
font_02_sfnt_off00014231.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14231 16148 bytes
SHA-256: dbe1f6873dfbc63a557840fa26764ed1e24daf10180a919a5f50e881975b6f06