Malicious PDF — malware analysis report

Static analysis result for SHA-256 01d6a187c46bed07…

MALICIOUS

PDF

76.3 KB Created: 2021-04-05 15:24:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 69cee6afe4c50932d3f883e6e3f3dd7f SHA-1: 0e380de9f81dfc8327deb613b40388bd5278b14a SHA-256: 01d6a187c46bed07efe780a369f30db81bcbb3bc8edd9cac614485ddc2e0bb92
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

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 0.9997

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 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://crophysi.ru/strik?utm_term=do+you+get+to+keep+the+pet+rock+in+adopt+me PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4476272/normal_60323c0cbd5d3.pdfIn PDF document text
    • https://cdn.sqhk.co/guwezasov/giKABib/24415741774.pdfIn PDF document text
    • https://cdn.sqhk.co/riketumes/107FNhj/lesoxadidejanebez.pdfIn PDF document text
    • https://cdn.sqhk.co/pimabosi/ghhUgj3/bexotawavinutokapona.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475216/normal_5fcbbe15d220b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380701/normal_6041ce23d5369.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454982/normal_6030cbf3baa0a.pdfIn PDF document text
    • https://cdn.sqhk.co/giganopof/oFjdYgp/heroes_circle_jamaica.pdfIn PDF document text
    • https://cdn.sqhk.co/mudemodox/nifijll/dungeon_keeper_2_gold_edition_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470545/normal_5ffb49f4a7198.pdfIn PDF document text
    • https://cdn.sqhk.co/vaminika/iaDiahc/greatest_war_strategies_of_all_time.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381297/normal_601b97e5d199c.pdfIn PDF document text
    • https://cdn.sqhk.co/nawovoso/gijiAhi/depreciation_fund_in_balance_sheet.pdfIn PDF document text
    • https://gimogelego.weebly.com/uploads/1/3/4/6/134601730/siriverer-bupetip.pdfIn PDF document text
    • https://nidegezepon.weebly.com/uploads/1/3/4/6/134650885/4ec09dd30.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385410/normal_606795d49648f.pdfIn PDF document text
    • https://cdn.sqhk.co/tamupoto/gidihMK/xuzidufokefaluwupiwinebev.pdfIn PDF document text
    • https://sovajavab.weebly.com/uploads/1/3/4/0/134041947/b3102c8.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/belapawerezuju/54808192034.pdfIn PDF document text
    • https://s3.amazonaws.com/jazofi/tomososezomila.pdfIn PDF document text
    • https://s3.amazonaws.com/degisapemifa/movie_premiere_tv_guide.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_off0000eddb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDDB 5444 bytes
SHA-256: ef013929ec0f62330dfcda2ec7a7fe493857b1c43639c1f36809653eb2c46ce6
font_01_sfnt_off0001004c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1004C 10424 bytes
SHA-256: ac059ab7c1f236c72516b569837fa51a0a81026d1c7ed2229c6418a76ea4cb95

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