Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e85267f69f4e76c…

MALICIOUS

PDF

81.6 KB Created: 2021-01-25 05:45:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 1942bce06bf6552b000bcbd26f297dbf SHA-1: 271742d7b8e3a7f5baae3e55ffb2eadb2c6e4b2d SHA-256: 7e85267f69f4e76ca1269b493425bf15b8b248eb4d75cc11746325529deaad42
272 Risk Score

Malware Insights

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

This PDF document contains numerous links to external websites, many of which are hosted on disposable domains, suggesting a link farm or phishing campaign. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates that at least one URL points to known malicious infrastructure. The presence of 'SE_INVOICE_LURE' and 'SE_CALLBACK_LURE' heuristics further supports a phishing or scam pretext, aiming to trick users into clicking malicious links. No scripts were extracted, but the overall structure and URL patterns are indicative of a malicious document designed to redirect users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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) documents that carry no urgency or charge/dispute escalation.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://yafferge.ru/wb?keyword=td%20bank%20e%20transfer%20canada%20to%20us In PDF document text
    • https://rodamopuxex.weebly.com/uploads/1/3/4/3/134354351/4650298.pdfIn PDF document text
    • https://kiteginizi.weebly.com/uploads/1/3/1/8/131871518/poworebilejalo-dejipasonujuv-xemibabadawoj-fojipizelegi.pdfIn PDF document text
    • http://vknacruckalaikov123.xyz/hacker_keyboard_apk_uptodownlqfzh.pdfIn PDF document text
    • http://legalvictory.group/rajakekajafereh1a.pdfIn PDF document text
    • https://zerasogamonan.weebly.com/uploads/1/3/0/7/130775055/1157397.pdfIn PDF document text
    • https://beperupofifu.weebly.com/uploads/1/3/1/6/131636755/7cb43c.pdfIn PDF document text
    • https://keregejuvuja.weebly.com/uploads/1/3/4/3/134345288/jijubekuwibaxej-sajeduxinovipe-vutakifi.pdfIn PDF document text
    • http://cg-designer.xyz/photo_gallery_and_screensavermnd2p.pdfIn PDF document text
    • https://vogaxuruxav.weebly.com/uploads/1/3/4/3/134352923/wuboxudabefa-pajupuwosom-torewigax.pdfIn PDF document text
    • https://famonusowofem.weebly.com/uploads/1/3/4/3/134349488/6ff9e10.pdfIn PDF document text
    • http://hookup154.site/dalopiratinivomusongymtq.pdfIn PDF document text
    • http://sputnews.com/kolevakasorfiy0.pdfIn PDF document text
    • http://domastmsk.space/app_recarga_certa_para_que_serveycef0.pdfIn PDF document text
    • http://sdek-24.cc/bloons_td_6_dartling_gun_mod_downloadf6cpa.pdfIn PDF document text
    • https://xekuvezenigut.weebly.com/uploads/1/3/5/3/135346982/b101a1aa.pdfIn PDF document text
    • https://lokeduvedip.weebly.com/uploads/1/3/4/8/134885922/88ae55c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lilufafuf.epizy.com/58325250664.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_off0001004b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1004B 5136 bytes
SHA-256: a0b29940472b18c69698ecf7c81f1fdb5b4e13395b14ca3f3f99af4ca21f2e08
font_01_sfnt_off000111d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111D5 11432 bytes
SHA-256: 08e5f676ff0216d73ba6d36336d8abf096c425a8cea39aae7bc20132f256db9f

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