Malicious PDF — malware analysis report

Static analysis result for SHA-256 60cf3ca6d51ece52…

MALICIOUS

PDF

75.6 KB Created: 2021-04-05 14:02:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3028d622e568452ec5a1c219f34c0bda SHA-1: efb4a861e2e7085ed47ae05492ae96af0b2060c8 SHA-256: 60cf3ca6d51ece52820435fea68bbbede7a3760543397958d9f4087cbc46bdbb
104 Risk Score

Malware Insights

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

The file is a PDF document flagged by ClamAV as a phishing trojan. It contains embedded URLs and a heuristic firing for a visual download button, suggesting a phishing or social engineering lure. The ML classifier also strongly indicated maliciousness. While no scripts were directly extracted, the presence of external URIs and the overall detection profile point towards a malicious document designed to trick users into downloading further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://xezojetit.ru/wix?keyword=vhlcentral+french+supersite+answers
    • https://cdn.sqhk.co/woberimi/igffQ7c/20013506472.pdf
    • https://cdn-cms.f-static.net/uploads/4476294/normal_604cfeafcddb4.pdf
    • https://cdn.sqhk.co/jabakujivim/gdhjdgc/qr_scanner_android_app_download.pdf
    • http://creditscorecard.info/fomevutemewirilivn81zu.pdf
    • https://cdn-cms.f-static.net/uploads/4383680/normal_603b82c47bfb9.pdf
    • http://scandisvet.ru/adobe_photoshop_tutorials_in_urdudyqd7.pdf
    • http://meriline.store/makawiwxhnp4.pdf
    • https://cdn-cms.f-static.net/uploads/4464851/normal_6044927a4aead.pdf
    • https://cdn.sqhk.co/xawobovuji/1gcRzNe/the_walking_dead_new_episode_uk.pdf
    • https://cdn-cms.f-static.net/uploads/4490754/normal_60120de78aecf.pdf
    • http://pasetbs.xyz/why_do_they_call_it_a_speakeasy1mr2z.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/079dba33-0d71-426c-8f43-0fb2af01fb0b/33951658332.pdf
    • https://s3.amazonaws.com/fedure/big_data_analytics_training_mumbai.pdf
    • https://uploads.strikinglycdn.com/files/b694a2a2-44dd-4902-8ee2-fa239bc86ce6/motikipalogemedijipi.pdf
    • https://uploads.strikinglycdn.com/files/f9d31737-226d-4d82-8c40-07ac78385930/kogusu.pdf
    • http://xilavugepiw.rf.gd/crown_pallet_jack_replacement_parts.pdf
    • http://valapapiwusujeg.rf.gd/xopepigilutogojun.pdf
    • https://uploads.strikinglycdn.com/files/093afbda-565a-4e4e-b9da-c68ac916ec10/lirajeworatidijoneluw.pdf
    • https://s3.amazonaws.com/jipowumat/possessive_pronouns_examples_for_grade_6.pdf
    • http://jepevam.rf.gd/vulutu.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_off0000e864.bin
23c0ef6daf0963e576b8c7e188e7ca339a90babd397231c89d3a22e9d15cc440		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE864 5160 bytes
font_01_sfnt_off0000fa05.bin
4ed4308e0a0e8bd1ea467090d9b497255cd999f9c3cfacc18c5dc32e00874e64		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFA05 12248 bytes

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