Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5d3e69abc569941…

MALICIOUS

PDF

67.7 KB Created: 2020-12-21 02:19:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: ceaaee6c57f84f9df6c91354ab6ab43a SHA-1: e6b69e773d01ac31777880da9369fe4cdbf88dcc SHA-256: f5d3e69abc56994150e4724bb2da628ff048872f65bbc58eecafe720da2c6e49
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is a PDF document identified as malicious by ML classifiers and ClamAV. It contains an embedded URL that leads to a suspicious domain, likely intended for phishing or malware distribution. The document body, though heavily obfuscated, suggests a lure related to a 'fellowship form'. No scripts were extracted, but the presence of an external URI and the overall malicious verdict strongly indicate a phishing or social engineering attack.

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://trafficel.ru/aws?utm_term=ccrt+junior+fellowship+form PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4446776/normal_5fcc91d2a8811.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470387/normal_5fa3c14954c78.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450864/normal_5fcf1a485b927.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404984/normal_5f93ec167e9af.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366305/normal_5f9283377b95b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427103/normal_5fb693691bef0.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/05630a96-e704-4d80-9119-d463a38017d1/holt_elements_of_language_fifth_course_vocabulary_workshop_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d929912-9f1b-4482-99b2-39f87d0e4d88/kagaxekuwetozivonatuku.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07eb646b-d1ee-430b-9928-264ad3f8ff46/mazetaz.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc518012e537a05ef24173b/t/5fccf6a31e1a4d7de12c4b4f/1607268003632/hungry_bird_roorkee_menu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d1df259-5d05-489b-8a1e-b77b693b6a1b/25349367166.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc67172bdb33045eee820f7/t/5fcfec4238f37379df409ecf/1607461955886/superfarmers_mod_apk_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c07704c3-d1d4-4268-a16e-35644043fbc1/burepagom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d73d6fba-2c28-4214-8cce-c71310c63503/pokemon_vgc_2020_ruleset.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8429afd3-7e4a-418b-b12f-faf9f0b0c611/motenoke.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_off0000cd54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD54 5116 bytes
SHA-256: ca3e0a407c30529192ea688bceae1e2a5edae6e7e4d6982a3c55f60773d169b5
font_01_sfnt_off0000dead.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEAD 10268 bytes
SHA-256: 72a67817046ddaaf992017071a5505b813c2cc527aafd7159b02a77c688d98d2

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