Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f94e27cf102a9c6…

MALICIOUS

PDF

76.4 KB Created: 2020-11-28 19:20:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 1793b04f7367a782c0ab27d21b8e8c6c SHA-1: 26d00623148158d674a1c1307556c5af74c645b2 SHA-256: 5f94e27cf102a9c67aeb95dc599d099bc2b06a9d38835d60dcddabcd997bc42f
214 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file contains a malicious link disguised as a free application download, which is a common phishing tactic. The link points to a known malicious redirector, and the file is flagged by multiple heuristics and a machine learning classifier as malicious. The presence of a password-protected archive lure suggests an attempt to bypass security controls.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://ggtraff.ru/aws?utm_term=covenant+eyes+apk+free In PDF document text
    • https://cdn-cms.f-static.net/uploads/4381528/normal_5f93de571794c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413474/normal_5f988c4c2a597.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390638/normal_5f92286ed0855.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426267/normal_5fb7a312d53b2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408471/normal_5fbf23d67b53d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480142/normal_5fb5cdfd5ab3a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370987/normal_5f93cd21d3d85.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366388/normal_5fab040c053cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458837/normal_5faaf43fbbbcf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371808/normal_5f8cbe9b335d5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4ef49dc-0f6b-4bd3-a4a5-9edbcee33782/50430135944.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/adbcba44-190c-4663-9921-9129011004e0/guide_to_watering_succulents.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5b0240b-cd44-4780-ba86-05d4ceaee58b/vexuzuximazetivif.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5dfc41a-b3ea-4fb7-8e0f-e34bdd2089ad/gisemapewedubunijefegi.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_off0000e1bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1BF 3212 bytes
SHA-256: 6b73578daef1490c1b2929d0444a811a164443739a69df5ca7509217de3ce98a
font_01_sfnt_off0000ed3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED3D 4992 bytes
SHA-256: fcf7728d35378af44a91e559348f99c97327ca176a9b2ae85de1d9cecae3d6ea
font_02_sfnt_off0000fe5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE5B 11420 bytes
SHA-256: 65e542577c91e860633721bb0bee06a603d6d20f3c358771d80c73a10fed1e87

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