Malicious PDF — malware analysis report

Static analysis result for SHA-256 c76880174a2923fc…

MALICIOUS

PDF

70.2 KB Created: 2021-02-12 09:45:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fd9fc006886c71da7930970477d43f5e SHA-1: d302d79501daf041663f55f9e5f6db178f0756b3 SHA-256: c76880174a2923fca7007d8517b6d2605516226ebc742678d1d1068d70c1fdc5
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. It contains an embedded URI pointing to a suspicious domain, likely used to host or redirect to a malicious payload. The presence of multiple external URLs suggests a phishing or credential harvesting attempt, or a lure for downloading further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/wix?keyword=electron+arrangement+worksheet
    • http://sisunazivajagu.iblogger.org/fevilapib.pdf
    • https://static.s123-cdn-static.com/uploads/4376870/normal_5fe0da35e55e5.pdf
    • http://tetuzat.22web.org/pefipuzutig.pdf
    • http://taxafig.66ghz.com/sample_training_plan_template_in_excel.pdf
    • http://fezomoworiva.22web.org/16954672763.pdf
    • http://bugamuwilozibil.22web.org/31810078780.pdf
    • https://tonibakak.weebly.com/uploads/1/3/5/3/135346506/waneka.pdf
    • http://realnoe-obshenie.online/love_yourself_highlight_reel_piano_sheet_musicltsh6.pdf
    • http://streamsweets.com/35948313799meyy0.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://rukotig.rf.gd/67136904264.pdf
    • https://s3.amazonaws.com/jiguwuzobozobaz/47875838951.pdf
    • http://venavabumekaj.epizy.com/gexireba.pdf
    • https://s3.amazonaws.com/veraxawewib/billian_billian_ringtone_mr_jatt.pdf
    • http://dibulazovila.rf.gd/catalyst_9400_line_card_datasheet.pdf
    • http://zubeleboju.epizy.com/jennifer_lopez_ain_t_your_mama_mp4.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_off0000d6e6.bin
193414313e577677a9c0150a94a18c6d24caf3d0a0841e18d63a0b26b32e19ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD6E6 5328 bytes
font_01_sfnt_off0000e8f3.bin
15db29ff979ad46b4cc62e03ea0241b63d842208282f7281463c582d06cc130c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE8F3 10348 bytes

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