Malicious PDF — malware analysis report

Static analysis result for SHA-256 b14144b7f3d3df76…

MALICIOUS

PDF

80.9 KB Created: 2021-03-07 19:19:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ddd1261d3f5b560adf6964ff5bdbc08 SHA-1: 11c5283a7f8a938686e901807db02970074fae0a SHA-256: b14144b7f3d3df766b1e2d69ebae54375361f452f4d4a51e188e3415d7556268
96 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a machine learning classifier and ClamAV, indicating malicious intent. It contains an embedded URL pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to search results or information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://soxebez.ru/wix?keyword=captain+mark+richards
    • http://1xbets-regs.site/lejobexeguxek5e55.pdf
    • https://static.s123-cdn-static.com/uploads/4497658/normal_5fcc00c5d7ee5.pdf
    • https://static.s123-cdn-static.com/uploads/4492529/normal_6005051062171.pdf
    • https://cdn-cms.f-static.net/uploads/4374968/normal_6041b80ce9022.pdf
    • https://static.s123-cdn-static.com/uploads/4489733/normal_5fe1c0349decf.pdf
    • http://bonmarket.site/wemorazixefi7aht.pdf
    • https://cdn-cms.f-static.net/uploads/4379474/normal_6017d53b8b97b.pdf
    • https://static.s123-cdn-static.com/uploads/4393189/normal_5ff6af552bee7.pdf
    • https://cdn-cms.f-static.net/uploads/4444850/normal_603b7caaa117b.pdf
    • http://kinoogf.space/are_ks2_sats_cancelled_for_2021f0olq.pdf
    • https://cdn-cms.f-static.net/uploads/4488569/normal_5fe69dbe0459a.pdf
    • https://cdn-cms.f-static.net/uploads/4478387/normal_60102ec8c92fe.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://tinafominur.epizy.com/walubitinezoxasi.pdf
    • http://bobepenuf.rf.gd/rectangular_to_polar_form_complex_numbers.pdf
    • https://uploads.strikinglycdn.com/files/5c1384eb-1e40-49b0-8d50-6dc3f1bb06a8/70237883450.pdf
    • https://uploads.strikinglycdn.com/files/97cdde85-4c7b-404b-8162-04a62b8bdb12/super_mario_sunshine_walkthrough_book.pdf
    • https://uploads.strikinglycdn.com/files/053e05ec-cbf0-428a-85d1-b29d5ad6c327/62862552959.pdf
    • http://xujalebarot.epizy.com/pet_leveling_guide_last_chaos.pdf
    • https://uploads.strikinglycdn.com/files/612a9eda-759d-42e7-8300-dc97723f13ba/how_to_make_a_circle_diagram.pdf
    • http://sizujuzefe.epizy.com/ge_spacemaker_xl1800_not_working.pdf
    • http://xunonevikonog.rf.gd/nuzabavaduduxim.pdf
    • https://uploads.strikinglycdn.com/files/6973883c-83db-4029-9c06-ef62962542c2/beruropepufi.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_off0001016f.bin
7ecb4936cd844d9ffab8231f83fa7181df7fe2a1cfcd139ef6f787c1f5bb70f1
pdf-font-stream PDF embedded font (sfnt) at offset 0x1016F 5252 bytes
font_01_sfnt_off0001131c.bin
1ea65cde22ea8e09d9e7be5ea5826cda655147673a1b016780258f4e9bba5451
pdf-font-stream PDF embedded font (sfnt) at offset 0x1131C 10380 bytes