Malicious PDF — malware analysis report

Static analysis result for SHA-256 9afdc82fe77a9c35…

MALICIOUS

PDF

78.3 KB Created: 2021-03-20 10:52:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2656bc3d997835a09a2a791d6808739b SHA-1: d318338639152bb566dca30129bdbdbc438d940d SHA-256: 9afdc82fe77a9c35a9d43f9f3a13ffc2bd2b027bd6e74ff9ca2ba9d1727546dd
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan' and an ML classifier indicating high maliciousness. The presence of a large number of external links, including the primary malicious URL 'https://xezojetit.ru/wix?keyword=answers+to+word+brain+penguin+level+18', suggests a link farm or phishing attempt. The document body, though heavily corrupted, contains text related to search queries, reinforcing the lure aspect.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://xezojetit.ru/wix?keyword=answers+to+word+brain+penguin+level+18
    • https://jukafubu.weebly.com/uploads/1/3/0/8/130874261/276400.pdf
    • https://cdn.sqhk.co/judawube/giShcig/hack_game_pooking_billiards_city.pdf
    • https://cdn.sqhk.co/jozanafe/TvzjgsS/matches_puzzle_game_episode_14.pdf
    • https://cdn.sqhk.co/loxinesupiva/4ghN7gc/31966433975.pdf
    • http://bcpzonasegura10beta-viabcp.com/73586035263j2m90.pdf
    • http://cosmeteca.com/bomber_crew_game_ranksfetuy.pdf
    • https://faraxebeg.weebly.com/uploads/1/3/4/4/134475962/9664434.pdf
    • https://cdn-cms.f-static.net/uploads/4414488/normal_5fe73da96dc6d.pdf
    • https://cdn.sqhk.co/viwiratoposu/djSggib/57091232678.pdf
    • https://cdn.sqhk.co/xamowizaso/h1COZDk/fakumalipivusut.pdf
    • http://helplnstagramcontact6088757.com/942118599527h1gw.pdf
    • http://keto-s1.com/ti_84_calculator_app_for_iphonefzadq.pdf
    • https://cdn-cms.f-static.net/uploads/4447631/normal_603efec56d86a.pdf
    • https://kowijifeno.weebly.com/uploads/1/3/5/3/135390944/kazovupiganetolek.pdf
    • https://cdn-cms.f-static.net/uploads/4497110/normal_6013a50d0103c.pdf
    • https://cdn.sqhk.co/walekikem/ugdLjdA/vuxifix.pdf
    • https://cdn.sqhk.co/jatizaru/hhegihj/nexipu.pdf
    • https://cdn.sqhk.co/vuwipabobatu/6gi47hf/samuxurivorex.pdf
    • http://fixmarker.fun/okavango_delta_map7ngjc.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/2d110a0b-5cda-4818-95ef-0c74de2a7dd9/does_baloo_die_in_the_jungle_book.pdf
    • https://uploads.strikinglycdn.com/files/fcad8f2a-6853-4fc1-9186-6a11fafca6c9/what_are_the_characteristics_of_the_photos_that_describe_the_kingdom_of_god.pdf
    • https://uploads.strikinglycdn.com/files/d384c207-aae9-4373-82ae-2d885de6ab9a/panasonic_6.0_plus_manual.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e3d3.bin
46b2396e09968153c9e0bcaa39b4ff9bdd708a6e3f6a1d61ba16e290239f4ab5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE3D3 3504 bytes
font_01_sfnt_off0000f05a.bin
8556b3cf655c0c8606aff94ac1787eecceb745a7c0ea9defb7b42b2d89c793d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF05A 5656 bytes
font_02_sfnt_off000103bd.bin
c751774453cd1faa772b76a7e5b6754c942a159e572b7153a89b22ad6bc2c1c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x103BD 11300 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.