Malicious PDF — malware analysis report

Static analysis result for SHA-256 dabe3c7ff13bbd10…

MALICIOUS

PDF

65.0 KB Created: 2021-01-03 11:56:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: dcc2a2fd5f6f5d82b6e754e90b8b2452 SHA-1: ee171f411ca6293b19efc20424fd184c13f114db SHA-256: dabe3c7ff13bbd108df379d78c737e19155b410f131ee5dabf7167391581b7c8
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, likely used for phishing or to serve a second-stage payload. Although no scripts were explicitly extracted, the PDF structure and the presence of an external URI suggest an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffnew.ru/wb?keyword=ambulance%20siren%20sounds%20australia PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366369/normal_5f871c6041b1c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458412/normal_5fa8e106e0004.pdfIn PDF document text
    • https://cdn.sqhk.co/mutexeze/hhCK5Qd/famous_telugu_movie_ringtones_free_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482407/normal_5fd38dc584b6c.pdfIn PDF document text
    • https://lusukukupesakub.weebly.com/uploads/1/3/0/8/130815137/fetatojidewubu_pemabe_gulikaw_solatujikawipu.pdfIn PDF document text
    • https://cdn.sqhk.co/lazujanaziri/ii3hbgh/world_war_2_offline_strategy.pdfIn PDF document text
    • https://cdn.sqhk.co/zafupusapun/ejfyojh/first_100_words_for_toddlers.pdfIn PDF document text
    • https://tovozilulu.weebly.com/uploads/1/3/0/8/130873983/pujajekaluma-mewed-nenobir-guxoge.pdfIn PDF document text
    • https://tonulolini.weebly.com/uploads/1/3/4/3/134341491/bagene.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/megelugik/dirt_bike_125cc_used.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/taiga_biome_abiotic_and_biotic_factors.pdfIn PDF document text
    • https://s3.amazonaws.com/lorifumofelu/zosadaz.pdfIn PDF document text
    • https://s3.amazonaws.com/gumegulaxi/70791502348.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c413.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC413 5216 bytes
SHA-256: 2900a96bf503249011747edc26df0329d19fb2f4d61093522a1fb1bd070f121a
font_01_sfnt_off0000d5ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5AE 9852 bytes
SHA-256: 768929370ba1907ef5a83c1360b7adaa78e68041f9f40ceae95ca204a69c53cf

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