Malicious PDF — malware analysis report

Static analysis result for SHA-256 12afddab8c174365…

MALICIOUS

PDF

74.1 KB Created: 2021-04-08 00:55:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 721941425df2d056cd5983040208e55b SHA-1: 15f86e8bdbce758f05fadde0d9896b027ce8691d SHA-256: 12afddab8c174365b89ecd9db5f6fdafb329638d78b21ef15e8837c6742d27ac
184 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to known malicious infrastructure, specifically targeting users searching for cracked software. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to deliver a secondary payload or phish credentials. No scripts were extracted, but the document's structure and embedded URLs are indicative of a phishing or malware distribution lure.

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
  • 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 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.
  • 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://crophysi.ru/123?utm_term=human+anatomy+atlas+2017+apk+cracked In PDF document text
    • http://tafakiduwav.scienceontheweb.net/china_to_english_converter.pdfIn PDF document text
    • https://sejevijuwev.weebly.com/uploads/1/3/2/7/132712154/xazozuzaxumijaf-nigubevadufejof-tefinonipimen-kiledububanuwap.pdfIn PDF document text
    • http://firakil.22web.org/70834368443.pdfIn PDF document text
    • http://momentshop.space/photoshop_tutorials_skin_retouchingq68uf.pdfIn PDF document text
    • http://static-get.top/how_to_install_disney_plus_on_apple_tv_3rd_generationybvp1.pdfIn PDF document text
    • http://faceskinagainbeauty.xyz/18190926661gxfl5.pdfIn PDF document text
    • http://sungo1.space/frasario_inglese_viaggio60745.pdfIn PDF document text
    • https://buderenedisam.weebly.com/uploads/1/3/5/3/135302361/mivujovukidini_xofutawex_xotomiveriz_wepetasinewelaf.pdfIn PDF document text
    • http://gajaxujifusokul.mygamesonline.org/wotam.pdfIn PDF document text
    • http://hookup750.website/759706789670ujql.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/dabatisew/auto_mechanic_invoice.pdfIn PDF document text
    • https://s3.amazonaws.com/zupenafud/15831061179.pdfIn PDF document text
    • https://s3.amazonaws.com/sedowedi/kopasumejaganuwerabaleval.pdfIn PDF document text
    • http://zenomidesedi.rf.gd/exclaimer_signature_template_editor.pdfIn PDF document text
    • http://lagufezoseni.rf.gd/69975280310.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e0d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0D7 5752 bytes
SHA-256: 7eddb8f56145fe305220e51c8a322260d79a5fa7b5086f0aa68155d733f4e6f3
font_01_sfnt_off0000f460.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF460 11404 bytes
SHA-256: d1bded3a3a7aa1346fc4978fbb3c31ce441a53c17224bc579ce0f238107fe4a0

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