Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c62ca56dff56143…

MALICIOUS

PDF

83.4 KB Created: 2021-02-18 08:37:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: a0c509583d18cedc563152ac7e230249 SHA-1: 4b9363aa0b913c6a73d9b73bae9cc46a6588010e SHA-256: 5c62ca56dff5614388f7de97cbfa1d1e4945148defb404ec51f3c2af19419276
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 domain, which is likely part of a phishing lure related to printer issues. The document body, though heavily obfuscated, appears to contain references to printer models and potentially exploit kit artifacts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://baarspo.ru/strik?utm_term=hp+envy+5530+printer+doesn%2527t+print PDF link annotation
    • https://cdn.sqhk.co/kuzefoke/hiLVuqz/capsaicin_weight_loss_supplement.pdfIn PDF document text
    • https://cdn.sqhk.co/kufalavoxig/qieihfM/bubble_breaker_strategy.pdfIn PDF document text
    • https://cdn.sqhk.co/piwizogir/igjdmgi/18262955045.pdfIn PDF document text
    • http://detonicinitalia.website/wewowukenuj3kw6c.pdfIn PDF document text
    • https://cdn.sqhk.co/fudamozomeb/ggfjigi/usa_farming_simulator_2.pdfIn PDF document text
    • https://cdn.sqhk.co/fegibowaxus/c3hhjit/burger_time_game_ps4.pdfIn PDF document text
    • http://boevoenlp.com/circle_theorems_worksheet_igcseyn89a.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/tazopaju/indian_insects_and_arachnids.pdfIn PDF document text
    • https://s3.amazonaws.com/gezizefefififa/50479496089.pdfIn PDF document text
    • https://s3.amazonaws.com/kofabube/synaptic_generate_package_script.pdfIn PDF document text
    • https://s3.amazonaws.com/lusabifef/zirumetixeket.pdfIn PDF document text
    • https://s3.amazonaws.com/bejeseja/wivujutuzutegeg.pdfIn PDF document text
    • https://s3.amazonaws.com/paxunu/18433826782.pdfIn PDF document text
    • https://s3.amazonaws.com/rexogeguxosix/certified_fraud_examiners_manual.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fcfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCFC 5088 bytes
SHA-256: 13949ae61392e32a05e052d8b4171b6c95b2f15c3d875675ab03d6d084e22e14
font_01_sfnt_off00010e62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E62 10524 bytes
SHA-256: dd0ef40480e483ca8ccacd9167384af739eaa5f9384daf0b6fc882997f4dfe4c
font_02_sfnt_off00013235.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13235 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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