Malicious PDF — malware analysis report

Static analysis result for SHA-256 1eb6e5c4b6066234…

MALICIOUS

PDF

73.3 KB Created: 2021-05-31 21:39:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 908555c40529883ae120d2f63638213e SHA-1: e71768f888d437a90f5d22bd3c3ca78ee89a1919 SHA-256: 1eb6e5c4b60662342a962576157093053fec01aea18f69df75a036fb50101622
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing lure. The ClamAV detection and ML classifier indicate malicious intent, likely related to phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and numerous external links suggest it is designed to redirect users to malicious sites, potentially for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5518

Heuristics 5

  • 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.
  • 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
  • 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://allytemp.ru/pbw?utm_term=pilot+battery+aptitude+test+sample+papers PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4377912/normal_5feea8a53c4eb.pdfIn PDF document text
    • https://rebumazezip.weebly.com/uploads/1/3/4/8/134860465/2578250.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379043/normal_5fe0530e6e9dd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444102/normal_602102d5d8962.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485711/normal_6050e93f3e11e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409123/normal_60375c93a7853.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385235/normal_5fcae727571ac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455185/normal_60568edb25b1a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491412/normal_606563c1ca68e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456699/normal_5ff88d351f2e1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375504/normal_6058af04c4bba.pdfIn PDF document text
    • https://fudonorovivur.weebly.com/uploads/1/3/4/6/134665028/wixomabewo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420028/normal_600df7b9b9070.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371244/normal_606d264eb11cc.pdfIn PDF document text
    • https://kirenokasanav.weebly.com/uploads/1/3/4/4/134445236/fdbebb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455183/normal_5fff14b4cb8c1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403937/normal_604178ff45e39.pdfIn PDF document text
    • https://vozoduxi.weebly.com/uploads/1/3/2/8/132815828/kikavekiv_tewoji_nimakedilobofi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lugozamuxika.pbworks.com/f/84401964563.pdfIn PDF document text
    • http://jajafad.pbworks.com/w/file/fetch/144418452/dr_jagannath_dixit_diet_plan_in_marathi.pdfIn PDF document text
    • http://zuvevetub.pbworks.com/w/file/fetch/144421761/9396918819.pdfIn PDF document text
    • http://negovijalulu.pbworks.com/f/rijisixowojatenorejime.pdfIn PDF document text
    • http://jajisaparev.pbworks.com/w/file/fetch/144418647/google_drive_jurassic_world_fallen_kingdom_mp4.pdfIn PDF document text
    • http://fevawigo.pbworks.com/f/admiral_dryer_aed4675yq1_manual.pdfIn PDF document text
    • http://zopujoxobug.pbworks.com/f/algebraic_expressions_and_identities_class_8_worksheets_with_solutions.pdfIn PDF document text
    • http://supatibu.pbworks.com/f/74332497289.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fc8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC8E 5348 bytes
SHA-256: 79462ef9d5531673cb9be8ad41f287c412b256cd0af5786844b7454e7e41cec9

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