Malicious PDF — malware analysis report

Static analysis result for SHA-256 d80dd355fa24609c…

MALICIOUS

PDF

76.3 KB Created: 2021-02-19 08:57:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: d24441f5fa84c999e2ce61f877cefb4c SHA-1: 2433f1281bac413f8f32beea81bb7346ca78ab92 SHA-256: d80dd355fa24609c9ff0ae990605b1ae94158ba31e840c2cc035e7f2b4e420ee
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 0.9996

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://druttle.ru/strik?utm_term=msi+b360m+bazooka+cpu+compatibility PDF link annotation
    • http://voralijoxiror.iblogger.org/78986422875.pdfIn PDF document text
    • https://cdn.sqhk.co/gawukale/2gctxgd/amazon_echo_show_5_vs_8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482208/normal_602beda3a38fe.pdfIn PDF document text
    • http://lamorebeduzakoj.22web.org/555_timer_astable_multivibrator.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454803/normal_5fe55c23cb42f.pdfIn PDF document text
    • https://cdn.sqhk.co/linidivez/alTDykY/map_my_walk_sync_with_apple_watch.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501374/normal_5ffcfb3c39a3a.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/dezajok/ruelle_the_other_side_piano_sheet_music.pdfIn PDF document text
    • http://tekefugenira.epizy.com/renewoderojuzegiwuvej.pdfIn PDF document text
    • http://zapofekeba.rf.gd/legal_heir_affidavit_format_in_marathi.pdfIn PDF document text
    • http://dekuroveki.rf.gd/jemodebimekaxemur.pdfIn PDF document text
    • https://s3.amazonaws.com/dadupawo/35508332526.pdfIn PDF document text
    • http://famebod.epizy.com/xaxobegifuvofebuzabole.pdfIn PDF document text
    • https://s3.amazonaws.com/xaliwalufoguni/chrome_terbaru_offline_32_bit.pdfIn PDF document text
    • https://s3.amazonaws.com/bokelur/wipuwemepaziboxe.pdfIn PDF document text
    • https://s3.amazonaws.com/xoxaneral/groundhog_day_musical_sheet_music.pdfIn PDF document text
    • http://zepenolewiri.epizy.com/windsurf_rigging_guide.pdfIn PDF document text
    • http://zoletiwosi.rf.gd/romudubunokibiji.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ca7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA7E 5464 bytes
SHA-256: 34b82078f628110858be8ca076154665c7b7d13e52a9e6908fd7621fab7c902d
font_01_sfnt_off0000dd2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD2C 10148 bytes
SHA-256: ed1aebf9fd78d669d7f295c35e70d895950616201f5398df9d6fe52587db38de
font_02_sfnt_off0001003b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1003B 16204 bytes
SHA-256: a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd
font_03_sfnt_off00011568.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11568 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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