Malicious PDF — malware analysis report

Static analysis result for SHA-256 fba2277f59c4c38d…

MALICIOUS

PDF

73.7 KB Created: 2020-12-19 23:21:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: d6d1cf86ac6ade8ffd29cf2f13b32c75 SHA-1: 1841766b52c4bf084fbcdb0209cb03b6394ab244 SHA-256: fba2277f59c4c38d423bfc533454f52afece89f9938a2565b88d48360642b194
254 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains multiple heuristics indicating malicious redirection and a link farm, including a critical finding for a malicious redirector. The ML classifier strongly flagged the document, and ClamAV detected it as a phishing trojan. The embedded URL `https://cctraff.ru/strik?utm_term=spectrum+mobile+activate` is a primary indicator of malicious intent, likely leading to a phishing page or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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://cctraff.ru/strik?utm_term=spectrum+mobile+activate In PDF document text
    • https://cdn-cms.f-static.net/uploads/4405443/normal_5fd673d95d126.pdfIn PDF document text
    • https://kifobanirijo.weebly.com/uploads/1/3/4/5/134595275/bujulur-gujasodid.pdfIn PDF document text
    • https://sabadefupi.weebly.com/uploads/1/3/4/3/134345863/c2a5fe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418583/normal_5f9dda8e98f58.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366381/normal_5f8713b986172.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415068/normal_5fa0ec1f2bce1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://static1.squarespace.com/static/5fc2de16085bf90c0e0a0dd7/t/5fcfd05f221df657ad42050e/1607454816346/mens_hairstyles_for_thick_hair_2019.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf4f4f61e25426e12f1f8e/1606373200837/blackweb_shower_speaker_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ee366b1-3a61-4684-bd70-b250af161996/32102552837.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc10b71bdb33045eec31c8e/t/5fc3ed764e98326c028a7dc4/1606675831615/509484019.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd03ddb7a66e04eaf5debb/1606222813911/7747465664.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d554.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD554 4980 bytes
SHA-256: 885f781e0582e5456dec8d436c608709c6e8bc0b8134c084c05eba67bee6b8d0
font_01_sfnt_off0000e64b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE64B 11168 bytes
SHA-256: 3cdff7d0b3f2bd3fa1b173cceaec1be5af7cee1a375885e8f80465e0c8832934
font_02_sfnt_off00010c51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C51 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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