Malicious PDF — malware analysis report

Static analysis result for SHA-256 869e8611502ada45…

MALICIOUS

PDF

100.3 KB Created: 2020-11-20 02:37:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: f03f2ab5338adeec96e847ae36a74833 SHA-1: d6002f6954695d98a74fe6236f6da100ae9f66be SHA-256: 869e8611502ada45a105b84bde874d06cbde2ce1e54f4ff1f8fb970b31c3ba10
176 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a callback phishing lure, indicating it's designed to trick users into calling a phone number. It also contains a large number of external links, many pointing to PDF files, suggesting a link farm or redirection mechanism. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or a scam.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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://trafficel.ru/strik?utm_term=satta+king+gali+desawar+aaj+ki+report PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4365607/normal_5f870351b8024.pdfIn PDF document text
    • https://moxowikoxub.weebly.com/uploads/1/3/4/0/134096036/bimegapelemago-mabusemirij.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374009/normal_5f89f0ac5e284.pdfIn PDF document text
    • https://zazejisodixad.weebly.com/uploads/1/3/4/3/134359446/4901166.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367650/normal_5f9239f9f29cf.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/livivuvuwugeb/bajokekesepi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1475605c-37bd-4709-be9b-ded0f27c3e32/zolariwewolarawojajed.pdfIn PDF document text
    • https://s3.amazonaws.com/wapabefizosumi/75385522281.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/31632ec0-d0b2-4088-aa74-f15318742dae/rovilavuxelobafolunupives.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ef60512-82b6-40c1-ab37-b638f027cded/fuxemosaxadapokavemeb.pdfIn PDF document text
    • https://s3.amazonaws.com/mavixu/final_fantasy_14_culinarian_leveling_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50b5216e-f38d-4863-b2dc-0dbf36b2f49b/raxulubimujiwerimefirid.pdfIn PDF document text
    • https://s3.amazonaws.com/wopari/94864676464.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c458fb6d-cfe2-45ae-ad1b-2f2e8ace7538/puvakiwupinekeduduwagup.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_off00014b32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14B32 5464 bytes
SHA-256: 823e03c198c6ff3e12613a3ce3520ea04cfabd3e0ae981d0c1fee06bfa84be4b
font_01_sfnt_off00015dec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15DEC 12532 bytes
SHA-256: eebf5995e07b33e3eb889845c8bd5d2b8e305289d01ec7e50ee6a6fdcbaeaf8a

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