Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f66de10256abd5f…

MALICIOUS

PDF

91.0 KB Created: 2021-03-17 07:17:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: de71c8324bcfa0af67db74109118dd8a SHA-1: ebb537b862bd01bb60f5c8fa854ecf60f0cec664 SHA-256: 0f66de10256abd5fe225419c8aec5b18bd72cac3b21c58fe71af81e9827e5db0
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL 'https://pelibifir.ru/wix?keyword=ted+lavender+quotes' suggests a phishing or credential harvesting attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to redirect users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://pelibifir.ru/wix?keyword=ted+lavender+quotes
    • http://nout-sale.site/14228840299f7yf8.pdf
    • https://cdn.sqhk.co/ladesajisama/fEiiFhe/lanewogudirememikeb.pdf
    • https://cdn.sqhk.co/zimopaji/tzhdjhC/crossing_the_chasm_summary_by_chapter.pdf
    • https://static.s123-cdn-static.com/uploads/4386852/normal_5ff5017711912.pdf
    • http://istra-backwater.ru/ceas_barbatesc_casio_outgear_sgw-100-2b_twin_sensorcokfp.pdf
    • https://cdn.sqhk.co/nizufalagef/fhjgeEF/8138459692.pdf
    • http://just-gopro.com/wedirufajapavanowemiwie1u3y.pdf
    • https://cdn-cms.f-static.net/uploads/4476429/normal_605169996fa5a.pdf
    • https://static.s123-cdn-static.com/uploads/4476947/normal_5fca2835e59a6.pdf
    • https://cdn-cms.f-static.net/uploads/4418399/normal_5fd0be33e92b8.pdf
    • http://jenirafona.22web.org/76052412848.pdf
    • https://cdn.sqhk.co/busumodofu/hiijc2I/withings_scanwatch_for_sale.pdf
    • https://cdn.sqhk.co/xezufulozuwo/tqhjrha/lucky_block_race_map_download_java_edition.pdf
    • https://static.s123-cdn-static.com/uploads/4408996/normal_5ffb85f524a86.pdf
    • http://gutprod.xyz/fipizabogunasexojida5vxye.pdf
    • http://differencecheats.net/xuwilusanil0brb.pdf
    • http://teenagetutor.online/99539395640wjwqz.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://rojapaj.epizy.com/mcgraw_hill_biology_answer_key.pdf
    • http://xevivalekivo.epizy.com/medonisafaxinevumu.pdf
    • https://s3.amazonaws.com/fadobirak/zegomibefozupel.pdf
    • http://zaxalamel.rf.gd/molecular_biology_cell_biology_and_biochemistry_brown.pdf
    • https://s3.amazonaws.com/gasodamuza/beowulf_seamus_heaney.pdf
    • https://s3.amazonaws.com/farokof/xutovowokiw.pdf
    • https://s3.amazonaws.com/regovadeje/htn_guidelines_2018_treatment.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_off0001256e.bin
518b46ddd0c77589272ad999afcb1b48821a07b5a7a34da797facee8cd43be21
pdf-font-stream PDF embedded font (sfnt) at offset 0x1256E 4952 bytes
font_01_sfnt_off00013657.bin
271c6f51109d4b8be67e54f2b3b338867c3dc1dd1e00a22e0b02791d7d231ce6
pdf-font-stream PDF embedded font (sfnt) at offset 0x13657 12364 bytes