Malicious PDF — malware analysis report

Static analysis result for SHA-256 e88795ebf5bfe07a…

MALICIOUS

PDF

82.4 KB Created: 2021-03-30 22:12:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e574dfcf5f255e13270ed686214871a0 SHA-1: d122929af21c684f36048d92aa41acb155c772ad SHA-256: e88795ebf5bfe07a71ea86447dabc350e9ac8f13f27149fbbf38fb0d1ea5b9b4
206 Risk Score

Malware Insights

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

The PDF document contains numerous external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The ML classifier and ClamAV detection strongly indicate maliciousness. The document's content, combined with the heuristic 'Callback phishing phone lure', points towards a scam designed to trick users into clicking malicious links or engaging with fraudulent services.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 7

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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) or Microsoft license-boilerplate 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://jumiwimov.ru/wix?keyword=directv+iowa+city+channel+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4481819/normal_602a514c74054.pdfIn PDF document text
    • http://hotloveme.online/depression_testtabzf.pdfIn PDF document text
    • https://s3.amazonaws.com/liwafo/metroid_prime_4_release_date_2022.pdfIn PDF document text
    • https://wegekasi.weebly.com/uploads/1/3/4/6/134678838/vawidarulo-vujewazavab-danafig.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465136/normal_601337423e857.pdfIn PDF document text
    • https://s3.amazonaws.com/xesigeze/tomorrow_weather_report_in_kolkata.pdfIn PDF document text
    • http://particulier-societegenerale.xyz/xiworijefora1o1i7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455207/normal_600299e63c9d4.pdfIn PDF document text
    • https://zagezawuguzuvu.weebly.com/uploads/1/3/4/7/134731207/5458295.pdfIn PDF document text
    • https://berarenojinoz.weebly.com/uploads/1/3/4/7/134737003/dd19fd4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413563/normal_5ff5a1b5f0c44.pdfIn PDF document text
    • http://getallcreditscores.info/gosemefaresekaxusafig4h048.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465704/normal_5fe00f6fa4ec5.pdfIn PDF document text
    • http://raisinshub.club/3022985399371gjq.pdfIn PDF document text
    • http://mysteps.online/97765485654bcbb6.pdfIn PDF document text
    • https://saniluje.weebly.com/uploads/1/3/4/3/134323688/9030295dce.pdfIn PDF document text
    • http://all-system7.xyz/57927665798f3ep1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://05b56818-8b0b-4484-a411-4f1234233f1c.filesusr.com/ugd/e49726_83739d139d28485980726dc0a412dcfa.pdf?index=trueIn PDF document text
    • https://8dfd47f4-e591-4377-92a3-bdbf91d41e5a.filesusr.com/ugd/a58b01_7dd808b8f3be43ef80ecabd4b4f79e52.pdf?index=trueIn PDF document text
    • https://f904ef53-caa1-4f0f-8a97-c50675c03ece.filesusr.com/ugd/2f8cea_8262fab367c54d03a6f3cb6a7a1b3d40.pdf?index=trueIn 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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ebf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBF6 5276 bytes
SHA-256: b77c6867489c9792b7ecf941d0b59d61392638f9412087f0b187a1da2bcd2e39
font_01_sfnt_off0000fe04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE04 11836 bytes
SHA-256: f59afce115d09f91257df24ea96cdcf90b18ab28a26fd8e667ae0001eceab51c
font_02_sfnt_off00012697.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12697 16240 bytes
SHA-256: 281214d1119d96f3a8ebe36682ff3c94e77595198e0ed7d049f81fad77dcdf11