Malicious PDF — malware analysis report

Static analysis result for SHA-256 054f53bd957af747…

MALICIOUS

PDF

63.9 KB Created: 2021-06-08 02:08:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: edb34522e450f36856362c3cb9673d25 SHA-1: f22223af3c1cef50ca70d01bec803ddfdddcb196 SHA-256: 054f53bd957af747ded8c99c9dc81fe42f7241bb2c93896b1d356aa5d5ab86b8
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5377

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://crysiq.ru/pbw?utm_term=vw+new+beetle+service+manual+98-10+pdf PDF link annotation
    • https://setozovijigaze.weebly.com/uploads/1/3/4/3/134383391/80e325476631f56.pdfIn PDF document text
    • https://jilarikogezinuv.weebly.com/uploads/1/3/0/9/130969280/d14f971fddc9f7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449973/normal_5fd647c7c1c9d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476281/normal_5fd3b109cb31e.pdfIn PDF document text
    • https://xufetujada.weebly.com/uploads/1/3/4/7/134745175/7686822.pdfIn PDF document text
    • https://nosokubidudat.weebly.com/uploads/1/3/4/3/134321305/90e35e0938.pdfIn PDF document text
    • https://niromegezos.weebly.com/uploads/1/3/2/6/132681660/5645a68f8.pdfIn PDF document text
    • https://wajupera.weebly.com/uploads/1/3/4/7/134763514/ebe47eb4b49.pdfIn PDF document text
    • https://sorudexene.weebly.com/uploads/1/3/1/3/131384015/parovapizakuji.pdfIn PDF document text
    • https://vubufixul.weebly.com/uploads/1/3/4/7/134708570/gukapi_durobokexeroxo_tuwusipunoga.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450259/normal_602f3ffbc757b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411683/normal_5fe629606a5e5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427093/normal_60b84d8ca208d.pdfIn PDF document text
    • http://memofemovo.pbworks.com/w/file/fetch/144618606/ps4_gift_card_codes_free_2021.pdfIn PDF document text
    • http://bujolajoxek.pbworks.com/w/file/fetch/144822234/how_to_pair_jbl_speaker_to_iphone_x.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62848d25-4b1e-45b4-85bb-e36ce4780911/brand_style_guide_examples.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/721d74ba-9173-4d79-8384-aa7717e0fb5f/how_to_install_gta_5_mod_menu_on_ps4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c055345-49dd-49b5-8053-1ab8e1684345/public_speaking_tutorial_youtube.pdfIn PDF document text
    • http://xozojonurom.pbworks.com/w/file/fetch/144548454/i_want_a_wife_judy_brady_rhetorical_devices.pdfIn PDF document text
    • http://jutifakukap.pbworks.com/w/file/fetch/144807915/45383004710.pdfIn PDF document text
    • http://zusemivak.pbworks.com/w/file/fetch/144595626/dragon_ball_z_budokai_tenkaichi_4_ppsspp_download_mega.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0b62ebe-9480-4305-a88e-bc11e05fcad3/89264720584.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e3d54a7-eb80-4e38-ac26-69597b825a44/que_significa_titulo_homologado_en_el_hoyo.pdfIn PDF document text

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