Malicious PDF — malware analysis report

Static analysis result for SHA-256 f14695779230e89c…

MALICIOUS

PDF

72.6 KB Created: 2021-01-11 23:10:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 7e190c12ad65d9616369488238a4046b SHA-1: b718f4a200d957298dc9cee9d559fa0a2de80b41 SHA-256: f14695779230e89c3852cc4f2839f0fefa0542a02682170e2a3c197fa517c260
226 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file exhibits characteristics of an advance-fee scam, as indicated by the 'SE_ADVANCE_FEE_SCAM_LURE' heuristic. It contains a large number of external links, forming a link farm, with many pointing to disposable hosting services. The primary purpose appears to be directing users to a network of malicious or deceptive content, likely for phishing or fraud. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://traffking.ru/123?utm_term=all+league+baseball+tournament PDF link annotation
    • https://tedawubav.weebly.com/uploads/1/3/4/3/134376018/vanumes-fisagapironu.pdfIn PDF document text
    • https://cdn.sqhk.co/kululojilo/MgjNihf/10583158854.pdfIn PDF document text
    • https://xitukuwelup.weebly.com/uploads/1/3/4/3/134340625/7702792.pdfIn PDF document text
    • https://vixagudidiw.weebly.com/uploads/1/3/0/7/130775505/7992492.pdfIn PDF document text
    • https://worobewunit.weebly.com/uploads/1/3/1/4/131406731/7fdaa697.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366007/normal_5feca1e9bb22f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366347/normal_5f8f05beca4f4.pdfIn PDF document text
    • https://kuvitarige.weebly.com/uploads/1/3/4/0/134095916/lirunuwirilapil.pdfIn PDF document text
    • https://fezulenigi.weebly.com/uploads/1/3/4/4/134485980/e4a36222d244f.pdfIn PDF document text
    • https://cdn.sqhk.co/rajunakeb/10qOL5T/hex_stars_mod_apk.pdfIn PDF document text
    • https://ruzamugube.weebly.com/uploads/1/3/4/0/134040566/gitul-wiganexadawuvek-mewisagaw-mevosi.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/xijalovelokolep/vokebewita.pdfIn PDF document text
    • https://s3.amazonaws.com/tibitexil/muwibixafopawazixiwe.pdfIn PDF document text
    • https://s3.amazonaws.com/mujevubutukoxu/49817725702.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_off0000de02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE02 5132 bytes
SHA-256: 94562fd6aa6e95b9b438e9c797551232f12f349ff9f3daebc54ace2047bf3197
font_01_sfnt_off0000ef62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF62 11712 bytes
SHA-256: 499423fcd7a72ca63981d4d83fa559c91e41312fb842b140a567fbee73d50658

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