Malicious PDF — malware analysis report

Static analysis result for SHA-256 2869564e77a9a9ec…

MALICIOUS

PDF

82.0 KB Created: 2021-03-17 10:43:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 00c60bff55e4e1d7c72062b2d0fd24ec SHA-1: a6a526fac7033f1039803dd86e13c40401f49dde SHA-256: 2869564e77a9a9ec7adf311e76dcee51211eb449d82ac75f4aa7d2f0d466a150
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to search queries, further supporting a phishing attack vector.

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://dugedepap.ru/wix?keyword=pre+algebra+caching+answers PDF link annotation
    • http://zawopim.mygamesonline.org/capricorn_degrees_horoscope_spot.pdfIn PDF document text
    • http://lebofawudire.mygamesonline.org/33752478626.pdfIn PDF document text
    • http://poxumanavofeboz.scienceontheweb.net/11826842041.pdfIn PDF document text
    • http://worameruvejaka.mywebcommunity.org/verbal_reasoning_gre_practice.pdfIn PDF document text
    • http://xivazokib.medianewsonline.com/list_of_french_adjectives.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/1338525f-a3da-4b34-9e6c-98ab8d75a72f/her_tears_were_my_light_nil.pdfIn PDF document text
    • https://s3.amazonaws.com/xetasif/firstwrap_authorised_representative_form.pdfIn PDF document text
    • http://moxixezegosa.onlinewebshop.net/gotefatugafisaxateb.pdfIn PDF document text
    • http://merujepapi.epizy.com/c_interview_questions_and_answers_for_5_years_experience.pdfIn PDF document text
    • https://s3.amazonaws.com/nefomojuwet/brocade_300_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/xijalovelokolep/wusubimotekilasuko.pdfIn PDF document text
    • https://s3.amazonaws.com/xakapudakadu/40553505641.pdfIn PDF document text
    • https://s3.amazonaws.com/panalipolifod/webiregobawipebufuzad.pdfIn PDF document text
    • http://mujunuge.rf.gd/84395686231.pdfIn PDF document text
    • http://bisavosimirot.rf.gd/tanakibixozamaturunarur.pdfIn PDF document text
    • https://s3.amazonaws.com/robumuduluwise/zomijoma.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/655ec0bb-db22-479e-a7fc-03ec21670988/gatedatudugikekirexefit.pdfIn PDF document text
    • https://s3.amazonaws.com/varolexexus/62279909825.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_off0000f550.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF550 2900 bytes
SHA-256: 68d094faf81d2ea9f62e68ee4e789e40b6192f27e323b9e50c58fbaa8f881837
font_01_sfnt_off0000ff93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF93 5292 bytes
SHA-256: 878f59a705a60c4f61dc566a11cb89bedb940db360f43628c148d4d5d838e637
font_02_sfnt_off0001119c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1119C 11624 bytes
SHA-256: f94dc8c0c246a8ebbea74361d817699ff316f008574fcfbdbe150bd0f53005ec

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