Malicious PDF — malware analysis report

Static analysis result for SHA-256 8165628c0ee47b3e…

MALICIOUS

PDF

79.6 KB Created: 2021-04-01 04:11:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2142d884fc72578ae6959e9ce93168ef SHA-1: 08c823c260c0a87fde55e259ac400a535225bd1c SHA-256: 8165628c0ee47b3eb127719b07441471d504230b04e09fe102dcb2b180d0600c
96 Risk Score

Malware Insights

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

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The embedded URL `https://gimoguvi.ru/wix?keyword=peak+performance+book+summary+pdf` suggests a phishing lure, attempting to trick the user into believing they are downloading a legitimate document. No scripts were extracted, but the PDF structure and URL indicate a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://gimoguvi.ru/wix?keyword=peak+performance+book+summary+pdf
    • https://cdn.sqhk.co/sexasegavon/aeia9oE/90870349462.pdf
    • http://loveantravel.xyz/acer_chromebook_15.6_inchao8bn.pdf
    • http://mowukedova.mypressonline.com/biblia_ortodoxa_gratis.pdf
    • https://cdn.sqhk.co/lanumakefu/jeT6tge/communism_meaning_in_simple_terms.pdf
    • http://bisapusid.mypressonline.com/candlestick_chart_stock_meaning.pdf
    • http://ravovenovibu.medianewsonline.com/971825574.pdf
    • http://sizegoduxuxa.mygamesonline.org/sogikuwoxisutola.pdf
    • https://cdn.sqhk.co/leporolino/hcidgfn/chargepoint_map_uk.pdf
    • http://distornyup.site/jexexozufiwovaguf7id7x.pdf
    • https://cdn.sqhk.co/xafiguzi/hhayD9b/tipel.pdf
    • http://pakupuxojopef.getenjoyment.net/gofabesegepuko.pdf
    • http://xudisoda.66ghz.com/audio_technica_ath-_dsr7bt_manual.pdf
    • http://ladujose.sportsontheweb.net/32180454123.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/bufexa/coursera_probabilistic_graphical_models_quiz_answers.pdf
    • http://dijijesuwaxon.epizy.com/applied_science_lab_manual_for_diploma.pdf
    • https://s3.amazonaws.com/liwafo/63151798435.pdf
    • http://kepofif.onlinewebshop.net/5834556016.pdf
    • https://s3.amazonaws.com/ropuba/ajagz_quiz_questions_and_answers.pdf
    • https://s3.amazonaws.com/wejuvono/44589239454.pdf
    • https://s3.amazonaws.com/dubiditiginowo/62538158823.pdf
    • http://majuditatip.rf.gd/tezekamis.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ebee.bin
5b580ac32f01ebc6d5670d827216a870117847127a3c48e898eff4ab80b8e4b8
pdf-font-stream PDF embedded font (sfnt) at offset 0xEBEE 5332 bytes
font_01_sfnt_off0000fde7.bin
7c1f78a6c0ff13f80696f8c872f14470b0b086e8e2e458eaedc483cbd42f8b1a
pdf-font-stream PDF embedded font (sfnt) at offset 0xFDE7 10668 bytes
font_02_sfnt_off00012277.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0x12277 4324 bytes