Malicious PDF — malware analysis report

Static analysis result for SHA-256 de2061ed79df7b20…

MALICIOUS

PDF

68.1 KB Created: 2021-02-25 15:01:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 1780627d868475f9b3e5f6d1cc386d75 SHA-1: a1080c527c40431e59d043e3d4d378d35cc78b35 SHA-256: de2061ed79df7b20c3c61b7aadb166d645e4dab665f907b1950abba365176a85
184 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many hosted on disposable domains or link farms, indicating a phishing or SEO spam campaign. ClamAV detected this file as Pdf.Phishing.Trojan, and ML classification strongly suggests maliciousness. The primary purpose appears to be directing users to malicious or spam content via the embedded URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9786

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://baarspo.ru/award?keyword=artist+friend+of+william+blake PDF link annotation
    • https://cdn.sqhk.co/ganuniwiku/yjgbihw/battle_arena_toshinden_playstation_classic.pdfIn PDF document text
    • https://zezevibowavaki.weebly.com/uploads/1/3/4/8/134854125/gajas.pdfIn PDF document text
    • https://gorofegi.weebly.com/uploads/1/3/4/4/134462705/9204035.pdfIn PDF document text
    • https://cdn.sqhk.co/wifopuzuxiba/fgcL1xO/reaper_death_seal_jutsu.pdfIn PDF document text
    • https://funexoxep.weebly.com/uploads/1/3/2/3/132303151/xalamalexax-tikit.pdfIn PDF document text
    • https://cdn.sqhk.co/tusadopovet/hjgviej/real_follower_for_instagram_2020_indonesia.pdfIn PDF document text
    • https://cdn.sqhk.co/benibavagoge/Iihjdw9/21550575976.pdfIn PDF document text
    • http://creditscorerepair.info/viganinedarey25f.pdfIn PDF document text
    • https://pesosetolumejaw.weebly.com/uploads/1/3/6/0/136094132/xaxanakub_nunomipazisu_turipatomog_gupuko.pdfIn PDF document text
    • https://cdn.sqhk.co/gejupajo/ZpPhbjh/princess_crossy_game_road_funding.pdfIn PDF document text
    • https://cdn.sqhk.co/kozuvurop/gMThjAN/wulasodazot.pdfIn PDF document text
    • http://shoop-fh.ru/space_invaders_arcade_game_unblocked9vs3b.pdfIn PDF document text
    • http://wei-nmvc.com/apricorn_drivewire_manualac46b.pdfIn PDF document text
    • https://cdn.sqhk.co/dakagugi/ieghcjj/netflix_vr_box_android_9.pdfIn PDF document text
    • http://votixowet.22web.org/kebipelotinozozu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nefijojutofad.rf.gd/vidmate_old_version_2._36.pdfIn PDF document text
    • http://porokeziz.rf.gd/35343768095.pdfIn PDF document text
    • http://temefolix.epizy.com/no_game_no_life_zero_netflix_deutschland.pdfIn PDF document text
    • http://rimamosapike.epizy.com/engineering_chemistry_2_book.pdfIn PDF document text
    • http://leporib.epizy.com/chocolate_movie_all_video_song.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ff30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF30 5340 bytes
SHA-256: 3126982d84718fd8cc607c5a969c7482c0a4a19d146f4ae655f3af465e0c314f