Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b2bcba248af7f5e…

MALICIOUS

PDF

41.3 KB Created: 2020-10-27 03:06:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2275a33c4d1db5d05038308cfb523316 SHA-1: ef675d78683ce578a0ef151f5f1544afc710f54f SHA-256: 2b2bcba248af7f5ed8468e782317c6ce75fa8d8dc2da74b3040f090d7d18684f
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL `https://gettraff.ru/strik?keyword=bergeron+process+upsc` is the primary indicator of malicious intent. While no scripts were explicitly extracted, the PDF structure and the presence of a malicious URL strongly suggest an attempt to lure the user to a harmful site, likely for phishing or to download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://gettraff.ru/strik?keyword=bergeron+process+upsc
    • https://cdn-cms.f-static.net/uploads/4370294/normal_5f90862a68789.pdf
    • https://cdn-cms.f-static.net/uploads/4402519/normal_5f91717a4c624.pdf
    • https://cdn-cms.f-static.net/uploads/4377909/normal_5f969c128f018.pdf
    • https://cdn-cms.f-static.net/uploads/4374532/normal_5f942b66c4354.pdf
    • https://cdn-cms.f-static.net/uploads/4372719/normal_5f976574322a1.pdf
    • https://cdn-cms.f-static.net/uploads/4402711/normal_5f9412c9208cf.pdf
    • https://cdn-cms.f-static.net/uploads/4383912/normal_5f8fdae2bdb77.pdf
    • https://cdn-cms.f-static.net/uploads/4384143/normal_5f8c2337d4182.pdf
    • https://cdn-cms.f-static.net/uploads/4366407/normal_5f8758e6e1e8f.pdf
    • https://cdn-cms.f-static.net/uploads/4388271/normal_5f902c9f45cfa.pdf
    • https://cdn-cms.f-static.net/uploads/4410447/normal_5f965442b5877.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/zirojopemup/northstar_building_skills_for_the_toefl_ibt_advanced.pdf
    • https://s3.amazonaws.com/livivuvuwugeb/tm_apostol_calculus.pdf
    • https://s3.amazonaws.com/bupijila/89154620350.pdf
    • https://s3.amazonaws.com/pazerogasarinu/nefakesenanekimegowulizu.pdf
    • https://s3.amazonaws.com/somamere/cbse._nic._in_2019_syllabus_class_12.pdf
    • https://s3.amazonaws.com/bisute/arterial_hypertension.pdf
    • https://s3.amazonaws.com/jutenojamega/luzekemusevedoriwowiv.pdf
    • https://s3.amazonaws.com/sugaguxagu/58576361440.pdf
    • https://s3.amazonaws.com/jamokaroxoj/tejawuvudarifa.pdf
    • https://uploads.strikinglycdn.com/files/6bc3450c-299c-4703-b539-3a73b6421b6d/fexilisupitaguresadere.pdf
    • https://uploads.strikinglycdn.com/files/c0b58c6b-659c-4974-955d-18e3ad58aced/joblot_auto_parts.pdf
    • https://uploads.strikinglycdn.com/files/e8b51b3a-bba4-4c0c-ad39-9c28c7ae35ba/valentina_fradegrada_porn.pdf
    • https://uploads.strikinglycdn.com/files/d7a7b9b1-2e9c-49e2-9524-feff8b640500/18921950333.pdf
    • https://uploads.strikinglycdn.com/files/46fd90ac-352d-4379-8487-9c18b5899949/how_to_download_hayu_on_fire_tv.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_off00006318.bin
b6dd47427b5f780af2111067fbd50a23739fa678277970650dfc8afe4f07f496		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6318 4908 bytes
font_01_sfnt_off000073de.bin
4e1b985eb3fd8ce86f278c2f4cf0dae23542532bc7f54cb6a75e297f856ba73a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73DE 10612 bytes

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