Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6f9746a2e8a30ec…

MALICIOUS

PDF

69.6 KB Created: 2020-11-18 10:45:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 2908fb687ce946dc8ee8274c8e35cfe0 SHA-1: 1b695fe547b715dadea29edc5e506e884786882d SHA-256: e6f9746a2e8a30ec6359ba779ad301684224547df618b0ee50220b7550d66f64
176 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. The heuristic 'SE_CALLBACK_LURE' strongly suggests a callback phishing or tech-support scam, where the document prompts the user to call a phone number. The presence of numerous external links, including a link farm, further supports a malicious intent, likely to redirect users to malicious sites or download further payloads.

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
  • 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.
  • 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.
  • 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/123?utm_term=niko+name+meaning+urban+dictionary PDF link annotation
    • https://pamuvomamutafa.weebly.com/uploads/1/3/4/3/134305197/fenozo.pdfIn PDF document text
    • https://rajaxamakato.weebly.com/uploads/1/3/2/3/132302926/6036598.pdfIn PDF document text
    • https://wemakevarovafa.weebly.com/uploads/1/3/4/6/134636541/norogomidijupup.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412599/normal_5fa9c40474135.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368243/normal_5f8b15bbc4555.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/napejaxosinages/87421991107.pdfIn PDF document text
    • https://s3.amazonaws.com/bunobu/53224036715.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64b53a18-b9f3-4d2f-ac42-ed8beae83a2a/monster_manual_3.5_5.pdfIn PDF document text
    • https://s3.amazonaws.com/zemigiduwagafu/63783380950.pdfIn PDF document text
    • https://s3.amazonaws.com/wibedubosateg/46074404863.pdfIn PDF document text
    • https://s3.amazonaws.com/migivewuwe/jenezezunoni.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_off0000d207.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD207 5324 bytes
SHA-256: f36928f156901d1c6ab69125685e8ba2393096de61c71c4e57dd38950d9560b3
font_01_sfnt_off0000e41d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE41D 11380 bytes
SHA-256: 1ab964b3f417d1c025acc07b91234c7b671ebc17b51bd6ca641945a98bc43a29

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