Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d7af8532794add3…

MALICIOUS

PDF

69.4 KB Created: 2020-12-17 10:45:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 07cdfbe3047388114d4e2997c9c81e2d SHA-1: bbb0ed7933f8854541c087423d6ddc0003424128 SHA-256: 6d7af8532794add3cedfded5212184d514acc28039c5d432aa580548795bcbdc
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffnew.ru/strik?utm_term=side+by+side+book+1+chapter+4 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4394066/normal_5fc2952431dc6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374376/normal_5f94894be8299.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410694/normal_5fa80ae93452c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366661/normal_5f871ce95a9ea.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc1d4aac30a162e0c590d7d/t/5fc568b55147b14804e85bee/1606772917071/53470363708.pdfIn PDF document text
    • https://s3.amazonaws.com/mefonevimimix/gidavorepiwarajerimuwaj.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc3b7d50a2757459bf48cbe/t/5fc4a852f81c9a2a0c35ec4f/1606723667470/law_of_sines_and_cosines_word_problems_examples.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/763d8504-2714-4211-9e0e-12414d5f5de9/love_is_still_the_answer_piano_chords.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc108c2a879396864090c6f/t/5fc8d3e2b74dd54858e24d4c/1606996970849/light_up_mirror_full_body.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc59156403f5353fdb5474b/t/5fc62aacf8cdb769c6b5a1ca/1606822574983/beard_styles_for_old_man.pdfIn PDF document text
    • https://s3.amazonaws.com/setikizo/48588810100.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0dda31452f90b7fe53205/t/5fc4fcb6e6d49a06bb2f3da8/1606745271403/night_guard_cleaner_uk.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_off0000d304.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD304 5680 bytes
SHA-256: 32d28bbf988787390eada4515af561e4245f2c4c96982cc8117f1df5fe61d2fb
font_01_sfnt_off0000e663.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE663 10180 bytes
SHA-256: 2f768e2da65c48c111c2fea744c4dc9cdb92a6898d336e647cdc8065c151625f