Malicious PDF — malware analysis report

Static analysis result for SHA-256 70a1692292aa02b9…

MALICIOUS

PDF

76.3 KB Created: 2021-03-15 07:28:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ed3c6b772652a01430d53b5c8a2d455f SHA-1: 23387667d1dceab06bf6ba6f89f3b018981e133c SHA-256: 70a1692292aa02b940ff895e6c4fe6451d45c003a9d021c17e1c5db5261cd98c
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains an embedded URL pointing to a suspicious domain, likely intended for phishing or malware distribution. The document body, though partially corrupted, suggests a lure related to search results or document content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://jumiwimov.ru/strik?utm_term=4+tazas+de+harina+en+gr
    • https://cdn-cms.f-static.net/uploads/4374024/normal_5fe9fc2467387.pdf
    • https://static.s123-cdn-static.com/uploads/4368500/normal_5ff918df57392.pdf
    • http://gigurokubi.66ghz.com/bowling_for_columbine_questions.pdf
    • https://cdn-cms.f-static.net/uploads/4404287/normal_603593400e6a9.pdf
    • https://static.s123-cdn-static.com/uploads/4499341/normal_5fca34e756d12.pdf
    • https://cdn-cms.f-static.net/uploads/4377109/normal_604ec04740a01.pdf
    • http://vizujoguva.iblogger.org/avent_microwave_steam_sterilizer_directions.pdf
    • https://cdn-cms.f-static.net/uploads/4529149/normal_5fd9d5df8382b.pdf
    • https://cdn-cms.f-static.net/uploads/4449622/normal_5fdae2874dd9e.pdf
    • https://cdn-cms.f-static.net/uploads/4460963/normal_6033faa4cdf26.pdf
    • https://static.s123-cdn-static.com/uploads/4451356/normal_5fcb4a45e9d04.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/mozirolinitaje/55944349016.pdf
    • https://s3.amazonaws.com/jijari/types_of_fuel_injection_system.pdf
    • https://s3.amazonaws.com/pugomonapoxuxe/pikaduxewox.pdf
    • https://s3.amazonaws.com/jivala/atrocities_amendment_act_2016.pdf
    • https://s3.amazonaws.com/lupuvogotog/nutritional_information_1_tsp_vanilla_extract.pdf
    • https://s3.amazonaws.com/vapite/40748257252.pdf
    • https://s3.amazonaws.com/zepifudoxapo/24811182325.pdf
    • https://s3.amazonaws.com/gagotaniwipure/messenger_apk_free_latest.pdf
    • https://s3.amazonaws.com/nerugiraxura/lopofunenupe.pdf
    • https://s3.amazonaws.com/babuxufarizuxur/bloons_tower_defense_battles_mod_apk_ios.pdf
    • https://s3.amazonaws.com/wifiduxezo/lirapixagobixaxibef.pdf
    • https://s3.amazonaws.com/mubemutolewe/31613864965.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_off0000ec0f.bin
ed97f1a962ca30fb041b85cc32f85995ad8f29d2dd44e411704b207f7064da00
pdf-font-stream PDF embedded font (sfnt) at offset 0xEC0F 5096 bytes
font_01_sfnt_off0000fd66.bin
2d187d007245be6dc16a2b05b70855bb1dacdfe99139e3bc2a3e56e3b0cab9de
pdf-font-stream PDF embedded font (sfnt) at offset 0xFD66 11860 bytes