Malicious PDF — malware analysis report

Static analysis result for SHA-256 69677829d8ac1541…

MALICIOUS

PDF

66.4 KB Created: 2020-12-19 11:20:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 1f1d996bc82aa8ea269d5a1f58719cb0 SHA-1: 53fe43e59731a298ebe4ba09e1c35ddcc0f4bd01 SHA-256: 69677829d8ac1541e310d41ebe3764192a8629f7f83df16bda6b71a0b69a175c
96 Risk Score

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, 'https://trafffe.ru/wb?keyword=the%20gardens%20between%20game%20review', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to a game review, aligning with common social engineering tactics.

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://trafffe.ru/wb?keyword=the%20gardens%20between%20game%20review PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4468827/normal_5fd8489c0dc9c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366662/normal_5fd3b6f4a316a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371809/normal_5f8a7d3511f32.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370076/normal_5f93d45d3ce89.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413456/normal_5fb546f111ffc.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/4aee6b54-6b73-435b-a1aa-11b37d05ac8b/34760120238.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc0c10f1-897c-48fa-8395-1927dd325d1d/41805193577.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/17da83cc-3942-45fe-9863-e1b0e79041e1/happn_apk_old_version.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7fc03d8a-fa23-427c-85a5-d28a943c28ea/jofivexiguwufawore.pdfIn PDF document text
    • https://s3.amazonaws.com/sorogamat/gozatuvizopulu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/49c47984-50b1-4e81-af80-ae9a41f8360b/discourse_on_the_arts_and_sciences_quotes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bda23955-c4ea-40f9-9977-5bb699a12ec4/motu_patlu_mission_moon_full_movie.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_off0000c575.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC575 5448 bytes
SHA-256: 4be030cfd03cd56b71f9756d44c17f324f76ef8bc7786b1799a1af68f2887f7c
font_01_sfnt_off0000d7e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7E8 10996 bytes
SHA-256: ca17ad58051705a0a7534a7b1e078b2558928ba85f445151450fe88285ebb956