Malicious PDF — malware analysis report

Static analysis result for SHA-256 76fdc156e92d8034…

MALICIOUS

PDF

85.2 KB Created: 2021-04-09 22:23:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 0910781b563483d408fb4f92e6a2fe92 SHA-1: 542e6c61989a6847393e5528f7fcd5a820ffed64 SHA-256: 76fdc156e92d8034afb59dbcbd89b56bcc8f30d13bee18d522e950f6c34c508d
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9992

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://midufefew.ru/strik?utm_term=tsa+carry+on+size+jetblue PDF link annotation
    • http://epipog.com/play_store_install_karna_hai8ckod.pdfIn PDF document text
    • https://cdn.sqhk.co/munuluxel/fGhchiY/8941457386.pdfIn PDF document text
    • http://fb-copyright-help-from.com/tales_of_norse_mythology_helen_a_guerber7mlm8.pdfIn PDF document text
    • https://cdn.sqhk.co/nexasolonit/hdjh1hb/los_totopos_menu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377377/normal_5fec08ca351c4.pdfIn PDF document text
    • https://cdn.sqhk.co/zijigemeworu/lHhdbic/zombie_castaways_island_of_knights.pdfIn PDF document text
    • https://cdn.sqhk.co/vunebapenuj/gg1nWhf/traffic_crash_reconstruction_equipment.pdfIn PDF document text
    • https://cdn.sqhk.co/gixotagokezu/agijhgc/mapa_tnt_run_minecraft_pe.pdfIn PDF document text
    • http://feedbacrnz.space/on_the_road_again_chords6zeku.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415061/normal_603ee4587db9d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385216/normal_605578734a525.pdfIn PDF document text
    • http://formblckr1.xyz/vazikaxunedu5olpx.pdfIn PDF document text
    • http://sellforce.ru/cards_against_humanity_online_via_zoom5s00y.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/wofaxil/92190208781.pdfIn PDF document text
    • https://s3.amazonaws.com/kozibowisenatu/tijagofunitowila.pdfIn PDF document text
    • http://tibubol.rf.gd/streptococcus_agalactiae_pregnancy_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/vaxebisapesi/summer_infant_baby_gate_mounting_kit.pdfIn PDF document text
    • https://s3.amazonaws.com/julaxel/divisibility_rule_of_11_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/metakibeme/1782419628.pdfIn PDF document text
    • http://mezizafija.rf.gd/ace_certified_personal_trainer_exam_prep.pdfIn PDF document text
    • http://raguguk.epizy.com/52209115378.pdfIn PDF document text
    • http://xubejivulovitam.rf.gd/barok_literatura.pdfIn PDF document text
    • http://fewabob.rf.gd/english_scholastic_aptitude_test_questions_with_answers.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_off00010182.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10182 4992 bytes
SHA-256: fdbd94c32cdbe0277f14b34ef311b077f9d07015fc5fba963a58e007b41f6207
font_01_sfnt_off00011293.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11293 10876 bytes
SHA-256: f95a436b44575576eb86d646161e508a3f375c19897c754957f453ae2621efc4
font_02_sfnt_off000137e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x137E3 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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