Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea116fa80ee10bbe…

MALICIOUS

PDF

72.0 KB Created: 2020-11-18 01:55:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: f1c97832c76c76630f4e37becbb0c623 SHA-1: 16f770b702817898ae1bc68061ad37ddc2d48d19 SHA-256: ea116fa80ee10bbe7f04867b871ca635a9cc801477265653d9b45688600f6f41
176 Risk Score

Malware Insights

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

This PDF document exhibits characteristics of a phishing or scam campaign, specifically a callback lure. It contains a large number of external links, many of which point to PDF files, suggesting a link farm or content distribution network for malicious payloads. The ClamAV detection and ML classifier output strongly indicate malicious intent, likely related to phishing or trojan delivery.

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://trafffe.ru/aws?utm_term=one+clue+crossword+answers+chapter+17 PDF link annotation
    • https://nogusevufofe.weebly.com/uploads/1/3/4/5/134525370/rojatarumojusudi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374198/normal_5f9e69979cb7e.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/luropi/wakagudipemegowosevo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/96a02ae7-d492-458f-bcdb-b73a5d94f3f9/matt_colville_strongholds_and_followers_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7519e2b3-7e2c-48ca-9539-8e7ef9eb2fa7/76377830061.pdfIn PDF document text
    • https://s3.amazonaws.com/vexosafugunu/tank_trouble_3_games.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6459445b-6a7e-4d9a-97f8-372a95889c6a/weniridutabogip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad31aa0c-b57b-45ac-9c97-15895681484e/47200679279.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea4cbd8c-f801-443e-bfcd-07b82d21e2b3/1417168695.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a192eafc-fde0-42de-854b-1c0e29d19a4d/acer_aspire_one_battery_charger.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/332d1708-7fc7-40e8-bbc3-fe346b34c40f/ladojogufe.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_off0000dc90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC90 5412 bytes
SHA-256: b95d7c7eec446edd86f5771d5ec80052249f1dfcf2c5a9bdcd882d3e4abb061d
font_01_sfnt_off0000ef0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF0A 10624 bytes
SHA-256: 8390b758a385cc23d1687e5937721e19a8a19700a4ff22919bf0b8489f9118da

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