Malicious PDF — malware analysis report

Static analysis result for SHA-256 be9410dc2c06a6a2…

MALICIOUS

PDF

79.3 KB Created: 2021-04-19 07:43:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 0f0f479285eba85da84e2c05bbe5e73d SHA-1: b011578e7e7fdae1a5c18bf3bde46c8307a35fa4 SHA-256: be9410dc2c06a6a25015ee51b56f2dc9afa972233266e23134528dcc56f1b9de
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

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 0.9991

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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
  • 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://soxebez.ru/strik?utm_term=sharp+lc-65le654u+stuck+on+logo PDF link annotation
    • https://cdn.sqhk.co/xovinexesun/gcthgN1/the_new_gate_schnee_and_shin.pdfIn PDF document text
    • https://xeligedijeka.weebly.com/uploads/1/3/1/0/131070237/tizuleperuruni.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485454/normal_602c52a23ce0f.pdfIn PDF document text
    • http://mbfsopg.com/69076590048cig8k.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483081/normal_5fd378d18036c.pdfIn PDF document text
    • https://lafumunokude.weebly.com/uploads/1/3/4/6/134666321/886983.pdfIn PDF document text
    • https://cdn.sqhk.co/bebomopakax/8jdK2jc/rawaviwajomuvobusibiguke.pdfIn PDF document text
    • http://beautytopshop.site/65646212776lmurx.pdfIn PDF document text
    • https://cdn.sqhk.co/vuwonesi/h1WjgC7/teppanyaki_restaurant_utah.pdfIn PDF document text
    • http://pokypka.xyz/pigakewunolovozixeruda1wy0a.pdfIn PDF document text
    • http://zoxulojiliboro.22web.org/comment_fusionner_deux_fichiers_adobe_reader.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414495/normal_5ffeb56bd14c0.pdfIn PDF document text
    • https://zitakusosexozi.weebly.com/uploads/1/3/4/5/134595565/ninik.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454544/normal_5ff96124438b7.pdfIn PDF document text
    • https://nasaperexi.weebly.com/uploads/1/3/5/3/135351481/pezafepokowe.pdfIn PDF document text
    • http://arm-watch1.club/19962817845vmos.pdfIn PDF document text
    • https://cdn.sqhk.co/zanaforare/1TeTge6/rank_one_forms_yisd.pdfIn PDF document text
    • https://mirijanonukuzo.weebly.com/uploads/1/3/2/7/132740352/4666513.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://pidaxodudu.rf.gd/robert_bresson_notes_on_cinematography.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c31d0a8-8810-4a06-b439-5a4aef6a63cb/70747970830.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/44b54c30-40f2-4bcb-af07-5d5c2af95beb/tokemazaxawagon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33a7432d-1e20-4c4c-8fa8-74c49279cd01/22088151734.pdfIn PDF document text
    • http://robeguf.epizy.com/friendship_day_images_for_whatsapp_dp.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e8a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8A9 5592 bytes
SHA-256: 6debc70e2376c52cb5eee28ee336677c3b56ac5e6922ef63a00d5912dbf9bb2d
font_01_sfnt_off0000fbaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBAA 11228 bytes
SHA-256: eb358fed5c55d3353605a1e9065035de0988b0c611c2f94d219890506cd8d759
font_02_sfnt_off00012197.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12197 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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