Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6adf5f7794c5b2a…

MALICIOUS

PDF

149.3 KB Created: 2021-03-21 23:42:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5362118883032150f457df93967b3223 SHA-1: 1793fe0d396051c6084c2ac92399060f64dc94d5 SHA-256: f6adf5f7794c5b2a288cb046ee5f474844da7dafa318faa8e4578c10373e7f0b
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or credential harvesting scheme. The document body, though heavily obfuscated, appears to be a lure related to game search results.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

Heuristics 4

  • 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://druttle.ru/wix?keyword=kingdom+hearts+3d+riku+answers
    • https://dojufewuwi.weebly.com/uploads/1/3/4/2/134235401/gawonufo_putodenuj_piralusu.pdf
    • https://cdn.sqhk.co/tedigedubemi/h3hjbji/wubewivop.pdf
    • https://cdn.sqhk.co/kuwusetoteji/gLCieHv/medieval_war_games_android.pdf
    • http://lienforkid.com/getazilakefejeberepkff3d.pdf
    • https://cdn.sqhk.co/jeporikate/ughgd7y/bloons_monkey_city_blastapopoulos_strategy.pdf
    • https://waxevinibiwe.weebly.com/uploads/1/3/0/9/130969944/6548914.pdf
    • https://cdn.sqhk.co/gexopoku/0g1gdBy/85823688048.pdf
    • https://cdn.sqhk.co/wibononuve/7Vhbhbp/knife_dash_master_paypal.pdf
    • https://fusufuxono.weebly.com/uploads/1/3/1/6/131606103/funefipawi.pdf
    • https://cdn.sqhk.co/torazanopuni/e3YHMgc/zenitar.pdf
    • http://winoraama.site/evernote_for_gtd_guidernffm.pdf
    • https://cdn.sqhk.co/sebikavup/3qxchi0/planet_word_museum_jobs.pdf
    • https://vufomugivubi.weebly.com/uploads/1/3/5/3/135350936/4745699.pdf
    • http://tojipipawerar.22web.org/37519474035.pdf
    • https://cdn.sqhk.co/wanazofemuvu/XgjBIdM/vojesusuneroterawo.pdf
    • https://cdn.sqhk.co/jotenitix/EjphfYe/8417140911.pdf
    • https://fugomunufu.weebly.com/uploads/1/3/4/5/134586131/bekerepizenesuki.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://nugafafekovad.epizy.com/327848022.pdf
    • http://fuvojofud.epizy.com/sumiwuzabewimiwol.pdf
    • https://uploads.strikinglycdn.com/files/9af7455e-239c-464c-a4af-d315eb68931e/dd_warrior_stat_block.pdf
    • http://nivunurawusaxo.rf.gd/towutoduxunodexowibuwarep.pdf
    • https://uploads.strikinglycdn.com/files/1861defd-ad04-4e78-81b7-f6ff85a59e89/is_there_sugar_in_subway_bread.pdf
    • https://uploads.strikinglycdn.com/files/58a7f055-cd53-4459-ba09-bea387c996c1/what_is_data_analysis_in_sociology.pdf
    • http://varoniwarovez.rf.gd/atal_bihari_vajpayee_kavita.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_off000201d1.bin
b3d09d2be0454b11aef4d794099f6b0615befaeabbfd6bd8f49212263da47e12		 pdf-font-stream PDF embedded font (sfnt) at offset 0x201D1 3580 bytes
font_01_sfnt_off00020e9a.bin
2ee4ddee527f267009fa6febfc285572c991963a91db1125c3ca9d5764d4363f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x20E9A 5496 bytes
font_02_sfnt_off0002212e.bin
3af802c3294d26b76a713a3992a13e646b0daa2a4c2dd37b3f47edffbcdb04e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2212E 11316 bytes

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