Malicious PDF — malware analysis report

Static analysis result for SHA-256 312a75363d905a16…

MALICIOUS

PDF

66.2 KB Created: 2020-12-21 00:44:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0a510bf3f76268664022bc5f9394c728 SHA-1: 2861973d8ce7ff03ca6a2dc722213f276db6244d SHA-256: 312a75363d905a162092622b77b6c4bc05b2a31a1b7787bf5808dffeb65512de
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL pointing to 'traffset.ru', which is suspicious and likely part of a phishing or malware distribution scheme. The document body references 'binary options simulator strategy', suggesting a lure to entice users to click the malicious link.

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://traffset.ru/strik?utm_term=binary+options+simulator+strategy
    • https://cdn-cms.f-static.net/uploads/4409797/normal_5fb29f0f96595.pdf
    • https://cdn-cms.f-static.net/uploads/4494417/normal_5fd6c7c99194a.pdf
    • https://cdn-cms.f-static.net/uploads/4421477/normal_5fd7237d8a459.pdf
    • https://cdn-cms.f-static.net/uploads/4423757/normal_5fa590e4097c3.pdf
    • https://cdn-cms.f-static.net/uploads/4404987/normal_5fb9f79742a19.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/wonoti/64847509249.pdf
    • https://s3.amazonaws.com/kavugusepe/92423280749.pdf
    • https://uploads.strikinglycdn.com/files/47b11fed-4ced-42f8-b3d5-959d3268c822/25277522445.pdf
    • https://s3.amazonaws.com/jidosatikim/calming_music_for_sleep.pdf
    • https://uploads.strikinglycdn.com/files/806777c8-1385-4618-8088-ae075139ecd0/air_lap1131ag_e_k9_manual.pdf
    • https://uploads.strikinglycdn.com/files/32bd20b5-32f5-4f47-bd66-f93e10423fbb/xuditana.pdf
    • https://s3.amazonaws.com/towakog/bokix.pdf
    • https://uploads.strikinglycdn.com/files/ac64f5c5-a1c0-41b9-b771-41388d9e2edf/chixtape_5_zip_file.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_off0000c5c7.bin
b0136d7cdecf4df722b81951d52f08cd92c3fe65bea2140f3b526a7ee66e2ece
pdf-font-stream PDF embedded font (sfnt) at offset 0xC5C7 5292 bytes
font_01_sfnt_off0000d7bf.bin
5e9f74d79dc0cbd1a862203bb6e84f980d250ea3404986b800d8e36546939efb
pdf-font-stream PDF embedded font (sfnt) at offset 0xD7BF 10632 bytes