Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2f2e15738b043ae…

MALICIOUS

PDF

78.0 KB Created: 2021-05-25 13:44:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 7de09581dda148b2d5c92133ab71b71c SHA-1: a8435c21aea411db5665759b37299423ab44d137 SHA-256: a2f2e15738b043ae9cb9aa5299bdee08727d8c210fb2332a32e402b5afc6d900
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, many pointing to Weebly-hosted PDFs, suggesting a link farm or redirection mechanism. The presence of 'Fifa 21 coin generator legit' in the document body and the associated URLs indicate a phishing or scam lure. ClamAV and ML classifiers also flagged this PDF as malicious, specifically as a phishing trojan.

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://seumenha.ru/strik?utm_term=fifa+21+coin+generator+legit PDF link annotation
    • https://farurepakal.weebly.com/uploads/1/3/5/3/135318469/5bc7b38c93e.pdfIn PDF document text
    • https://zamivevi.weebly.com/uploads/1/3/1/4/131437513/pemojidolumef-kuvirakijo-zunumo-bugilupopomosag.pdfIn PDF document text
    • https://zutuvibob.weebly.com/uploads/1/3/1/4/131407898/3feefaf.pdfIn PDF document text
    • https://ravixibede.weebly.com/uploads/1/3/4/5/134584659/2982204.pdfIn PDF document text
    • https://kozezivu.weebly.com/uploads/1/3/4/4/134444222/2765075.pdfIn PDF document text
    • https://murafasonuralab.weebly.com/uploads/1/3/5/3/135398902/7aa5b329a2ffe0.pdfIn PDF document text
    • https://gagividezi.weebly.com/uploads/1/3/4/4/134477411/naraf-budunu-bigomobinotita.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/foneniz/kusovejotuzigefi.pdfIn PDF document text
    • https://s3.amazonaws.com/padosumifubobo/kosagorawomiza.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzaganog/how_to_tell_which_kitchenaid_mixer_i_have.pdfIn PDF document text
    • https://s3.amazonaws.com/xomepixo/baahubali_3_video_song.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76a0d25d-b2cd-41ce-a250-9e8620750d58/56885813722.pdfIn PDF document text
    • https://s3.amazonaws.com/retisovojor/empire_mini_gs_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxenipup/54018072066.pdfIn PDF document text
    • https://s3.amazonaws.com/gizonukorad/bevaku.pdfIn PDF document text
    • https://s3.amazonaws.com/savukojubusum/what_is_tropical_climate_in_the_philippines.pdfIn PDF document text
    • https://s3.amazonaws.com/lakujusitejojet/86700695845.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a987d0f7-926b-4318-9456-ea7498102a81/leo_new_moon_2020_time.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_off0000f4e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4E1 5012 bytes
SHA-256: e0d3d8e175369af6299a10c2708aaa928be9303e5dcafe7a8c0c303d8109693c
font_01_sfnt_off0001060a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1060A 10752 bytes
SHA-256: 28bfdde629d6e461304b6e4badba2e702e25be6a403162bd3cb9ddf3a7b5595c

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