Malicious PDF — malware analysis report

Static analysis result for SHA-256 a76b9d32d2f16bed…

MALICIOUS

PDF

74.2 KB Created: 2021-02-23 06:18:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8b82da3f04ce4c542393d8eb7ae4ce50 SHA-1: 00f93b0aa41686ab8352b6e4467225f0b8d8feec SHA-256: a76b9d32d2f16bedb8d1d1aac023bb4456229c3cc35cc92ea85a71be5f8d7edb
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious URL, 'https://leonvi.ru/wix?keyword=big+gator+drill+guide', which is likely intended to host or redirect to malicious content. The document body, though partially corrupted, suggests a lure related to a 'big gator drill guide'.

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://leonvi.ru/wix?keyword=big+gator+drill+guide
    • https://cdn.sqhk.co/mepapogivoma/eidjjja/catholic_and_non_religious_marriage.pdf
    • https://cdn.sqhk.co/fesoxuleri/cIie9ji/gigabyte_smart_manager_v3_download.pdf
    • http://prolac.ru/gofaxoxuzekupedogudpx9o.pdf
    • https://cdn.sqhk.co/fujonexa/3TI89hh/lebaz.pdf
    • http://alluniversity.fun/economia_ambiental_y_economia_ecologicafc70i.pdf
    • http://tizezs.xyz/popuzazumoltfznk.pdf
    • http://instapodarok.site/5085296737577ls0.pdf
    • http://item-mask.top/clinical_laboratory_hematology_3rd_editionkeajk.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zejagipusif.epizy.com/spotify_songs_online_free.pdf
    • http://nokizotef.rf.gd/15174363707.pdf
    • http://tulezij.rf.gd/keselufadapolizudos.pdf
    • http://vopawebelugodub.rf.gd/seripisafamojimiroxur.pdf
    • http://bulalejovadidov.rf.gd/kinadib.pdf
    • https://s3.amazonaws.com/petubapizo/polycom_vvx_410_headset_wireless.pdf
    • https://s3.amazonaws.com/suzujewa/96394541918.pdf
    • http://tupudenijusab.rf.gd/evidence_of_evolution_lab_answers.pdf
    • https://s3.amazonaws.com/gateme/how_to_reset_password_on_honeywell_thermostat_th8321r1001.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dd93.bin
fdcfcdb51da69553c0ce5a3a1209f8cdc709ef3b72d3ed523047d77c03e8bdb8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDD93 4864 bytes
font_01_sfnt_off0000ee2e.bin
2e723fc38b1a9c9b349d35f3a6048a7016f40b1a57ccab11fa7eeab348e88227		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEE2E 14572 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.