Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbb906d49c329227…

MALICIOUS

PDF

83.3 KB Created: 2021-01-14 05:23:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 74c4611f596fe4b22fb6988748ca510b SHA-1: ac956631d0b48ad0efebb378cfdff21df3172ac0 SHA-256: dbb906d49c329227855e4805879c5b98993824e46dc730cbf5e6f39b65d5ea9b
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. The embedded URL `https://trafffi.ru/aws?utm_term=industrial+accident+report+format+india` suggests a phishing or credential harvesting attempt, disguised as a report. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to redirect users to harmful sites.

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://trafffi.ru/aws?utm_term=industrial+accident+report+format+india PDF link annotation
    • https://cdn.sqhk.co/vipujitebiki/0vgegiA/84604638451.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4498997/normal_5fda597eb47a2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4528876/normal_5fe60db0b5855.pdfIn PDF document text
    • https://site-1173572.mozfiles.com/files/1173572/50668587685.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374976/normal_5f93cb7b9882b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371246/normal_5f8b099a43101.pdfIn PDF document text
    • https://cdn.sqhk.co/kupodakojav/lvmM4hi/61648705785.pdfIn PDF document text
    • https://cdn.sqhk.co/fawabanof/ngcMZIs/fruits_and_vegetables_quizzes.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465249/normal_5fc351bf3db07.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384143/normal_5fd912ec20adb.pdfIn PDF document text
    • https://cdn.sqhk.co/lilapanorup/3oG0hjO/22188817402.pdfIn PDF document text
    • https://cdn.sqhk.co/ledodatefu/VhcLlL5/4_pics_1_movie_level_2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488570/normal_5fcd81309eead.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/tesapibebujep/can_adobe_illustrator_edit_files.pdfIn PDF document text
    • https://s3.amazonaws.com/rizezobabub/sodofurozoviloz.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_off0001064e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1064E 5236 bytes
SHA-256: 9cb7fd16411744bb1978633e7a2b084031a6f0ca42f3d8a06762f31b970f4ae9
font_01_sfnt_off0001180a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1180A 12096 bytes
SHA-256: 502c8869b9b1f014d48ef6fe9c28df35fa82c916c261ae5749c6593e2736c0f4

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