Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe4093b162100f93…

MALICIOUS

PDF

66.0 KB Created: 2021-01-25 18:16:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: e9e4acd5db8c5235452678725877d9a2 SHA-1: 2aa8c378dee651b279b41d7239e1be86a727c907 SHA-256: fe4093b162100f9349d3702c05749a7b4c92ea8fb58342a7c113e0b5a3063d05
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, with one prominent link pointing to 'jottigo.ru/aws'. This URL, combined with the heuristic 'PDF_SEO_LINK_FARM', suggests a tactic to drive traffic to potentially malicious sites. The ClamAV detection and ML classifier also strongly indicate malicious intent, likely related to phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • 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://jottigo.ru/aws?utm_term=crash+bandicoot+ps4+theme PDF link annotation
    • https://furimulu.weebly.com/uploads/1/3/1/4/131411024/vepamawu_gazebosipuxixa_doberugi.pdfIn PDF document text
    • https://cdn.sqhk.co/tikalijit/eNXgglr/manicure_pedicure_near_me_cheap.pdfIn PDF document text
    • https://cdn.sqhk.co/nozesinipi/iMrEx7s/11401227591.pdfIn PDF document text
    • https://ziganuridu.weebly.com/uploads/1/3/0/8/130815115/b1c5fdd35dfb.pdfIn PDF document text
    • https://xegoratan.weebly.com/uploads/1/3/2/7/132712572/gegituliridizu.pdfIn PDF document text
    • https://fupelesanu.weebly.com/uploads/1/3/1/6/131606305/162538.pdfIn PDF document text
    • https://tekebuzegox.weebly.com/uploads/1/3/0/8/130814382/e3944b7ea8.pdfIn PDF document text
    • https://rubuvewoxuvima.weebly.com/uploads/1/3/4/8/134873715/pefodij-wufojegufij.pdfIn PDF document text
    • https://mezepobavufu.weebly.com/uploads/1/3/4/7/134717124/buzopojopolu_waterivekinus_fokokikoloz.pdfIn PDF document text
    • https://cdn.sqhk.co/nenuguvan/ihgeHFD/66114314097.pdfIn PDF document text
    • https://wunurobi.weebly.com/uploads/1/3/4/8/134881210/3473655.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/golepe/hercules_2014_imdb_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wusigipufuvowix/dusedofoda.pdfIn PDF document text
    • https://s3.amazonaws.com/miledu/gba_emulator_android_full_version_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/futamo/35385306660.pdfIn PDF document text
    • https://s3.amazonaws.com/papuja/vimakupexoxunetidubemi.pdfIn PDF document text
    • https://s3.amazonaws.com/tetofamuxulil/nenifovobodogedemip.pdfIn PDF document text
    • https://s3.amazonaws.com/sebunuzu/43569881565.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_off0000c421.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC421 5412 bytes
SHA-256: 43085a16abe12239337696b151988a89bf775a0aa4b32e227db3e423a48d3add
font_01_sfnt_off0000d658.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD658 10928 bytes
SHA-256: 1d8aacfc58d7d4da42b5060239c6830d404a88377435370c24cae99a29ba0ec8

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