Malicious PDF — malware analysis report

Static analysis result for SHA-256 48afd6029242d2f0…

MALICIOUS

PDF

75.8 KB Created: 2020-12-31 16:04:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 97b439cf1b5866d85f522bc7812c5463 SHA-1: edd2ba44331a95731b071efe478323a6db3ac7a8 SHA-256: 48afd6029242d2f0146f3573c137f731e83f01dcc008268323f20e7fb70b97a1
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a heuristic firing for a link farm, indicating it hosts numerous external links. One of these links, 'https://traffset.ru/123?utm_term=scourge+of+the+past+loot+drop', is flagged as suspicious and likely leads to a malicious site. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://traffset.ru/123?utm_term=scourge+of+the+past+loot+drop PDF link annotation
    • https://modurofeg.weebly.com/uploads/1/3/4/3/134376635/0a9c01092c.pdfIn PDF document text
    • https://cdn.sqhk.co/totudavomud/ThfJ2ji/luvuwuvalotufijumig.pdfIn PDF document text
    • https://bibatuzasofobi.weebly.com/uploads/1/3/4/8/134879938/kukilasukini.pdfIn PDF document text
    • https://cdn.sqhk.co/kozuvurop/iiyUkhh/hero_world_championship_2019_leaderboard.pdfIn PDF document text
    • https://tupirusu.weebly.com/uploads/1/3/4/7/134702138/robikefemor.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://uploads.strikinglycdn.com/files/3a01835f-fa91-4551-986d-e1edb06b9136/34340458759.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c4b8e80-af34-4a8c-bdb0-dc57ad381e19/90459928032.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d3779b7-de42-4ad9-9646-c92558ed6b25/rorikoguxogutogi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a555e087-4c0f-49d1-adde-570b572cbfc8/97093186491.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1291ceef-4cd9-48eb-b177-eb696b57d6fd/kofenodubepevukororonexa.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzed/65252645100.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb3b6891-aa04-458a-8ccd-df0dd2674b95/33912299027.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ffa305cb-3225-408d-ba1f-6bd3f3e54872/class_management_strategies_for_kindergarten.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_off0000e045.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE045 5248 bytes
SHA-256: 0650517e3409163646b840bdc1a0a1a7b55c434ea53ad21a3915ae225f0bd617
font_01_sfnt_off0000f22a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF22A 9944 bytes
SHA-256: 6a66d7a9699e471c0a58d4c1e01ef0a4690f3af2e633e44e9bce0433a95a543a
font_02_sfnt_off00011443.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11443 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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