Malicious PDF — malware analysis report

Static analysis result for SHA-256 001c6a402e33af4a…

MALICIOUS

PDF

82.4 KB Created: 2021-03-31 12:24:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 996e2538d87b29b9b266465fcd8b62a7 SHA-1: 732decf3df1b9c53d43ca9b9a2dc263a04f0a7b8 SHA-256: 001c6a402e33af4ab18fe6a1c9523f8fc5709c8c2d7211d195b84ae25f5e34a2
246 Risk Score

Malware Insights

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

The PDF document contains numerous external links, many pointing to disposable hosting services, indicative of a link farm. The 'SE_BRAND_CREDENTIAL_PHISH' heuristic strongly suggests a credential phishing attempt, leveraging a brand impersonation and an action link that points to a redirector. While no scripts were explicitly extracted, the nature of the link farm and the phishing heuristic suggest the PDF is designed to lure users to malicious sites, likely for credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://lusogovo.weebly.com/uploads/1/3/4/3/134358567/javijejive-kadopu-vidofafan-gisomuwenesu.pdf.
  • 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.
  • 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://pelibifir.ru/wix?keyword=red+oleanders+pdf PDF link annotation
    • https://cdn.sqhk.co/feguzuvubut/bjd4ggC/baby_maker_predicts_baby_face.pdfIn PDF document text
    • https://cdn.sqhk.co/wenudiwome/jv0hjhe/appium_studio_for_intellij.pdfIn PDF document text
    • https://cdn.sqhk.co/gitovera/g2iiBid/android_secret_codes_for_sportybet_apk.pdfIn PDF document text
    • https://lusogovo.weebly.com/uploads/1/3/4/3/134358567/javijejive-kadopu-vidofafan-gisomuwenesu.pdfIn PDF document text
    • https://kawavaturitavo.weebly.com/uploads/1/3/5/3/135321378/512f74bcb6a0a.pdfIn PDF document text
    • https://lazogipinu.weebly.com/uploads/1/3/1/0/131069887/gakiz.pdfIn PDF document text
    • https://vusowixaxepuw.weebly.com/uploads/1/3/1/3/131381533/solarukiretezixakam.pdfIn PDF document text
    • https://renixopofofof.weebly.com/uploads/1/3/4/4/134486295/wamijowuw.pdfIn PDF document text
    • http://boost-shop.xyz/powukudebafevimsrr8.pdfIn PDF document text
    • https://vukuzimina.weebly.com/uploads/1/3/4/1/134109202/7b139bdc.pdfIn PDF document text
    • http://wunadimizurened.medianewsonline.com/nerojetiwiwerodeduxafar.pdfIn PDF document text
    • https://rupusuji.weebly.com/uploads/1/3/4/8/134878943/darobaketat.pdfIn PDF document text
    • http://7lessons.site/conan_exiles_set_priest3b5pa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5e0ff02-8d5a-43c4-b90c-fdda274a3895/tuzadejonipuvo.pdfIn PDF document text
    • http://zezofakarol.myartsonline.com/antenatal_period.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/17f955e2-d9a9-4f62-b871-d09acbc09410/49006794839.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5c25edfe-388c-446f-8275-e0a235898efd/39718072527.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f795e29-12bd-44ee-867b-337c6caf0330/jitefilujubipesor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08f146dd-23b5-406a-a2c3-998dffde1146/14514471081.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_off000104ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104AB 5040 bytes
SHA-256: cea6f1b87b8a7da65ae905aa2d1144516d591be07fb25202cae561c65bdd25c1
font_01_sfnt_off000115df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115DF 11372 bytes
SHA-256: 3915c9e60aa025be1515b4af9f645d5ff2b74e42a289ec2314e8b91293144f2a