Malicious PDF — malware analysis report

Static analysis result for SHA-256 88b0112ec2d20700…

MALICIOUS

PDF

76.0 KB Created: 2021-04-14 06:21:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f7854c68e063778675e213b16c91a98c SHA-1: 6ede8e3638b033f5f8aa8432af3f26f7f9540ac8 SHA-256: 88b0112ec2d20700f98552fb715be819d1130146fa19e8b2f1ec4a7eb9a12fcc
156 Risk Score

Malware Insights

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

This PDF document contains a large number of external links, many of which are obfuscated or lead to potentially malicious domains, indicating a link farm or phishing attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to redirect users to phishing sites or download further malware. The document body, though heavily corrupted, suggests a lure related to vehicle manuals.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://zajinet.ru/strik?utm_term=2012+ford+f+150+ecoboost+owners+manual
    • https://liwifaxuje.weebly.com/uploads/1/3/0/8/130874244/guzikile_vexazabojudapod_salerinaxuweve_molimafufof.pdf
    • https://cdn.sqhk.co/berovanova/30Yifmu/nisaremolugefitu.pdf
    • https://sidugavumudoriz.weebly.com/uploads/1/3/4/9/134902227/b14dec92c5e56.pdf
    • https://cdn.sqhk.co/gepaxulunan/VibsXho/zodisi.pdf
    • https://dopovubejaxow.weebly.com/uploads/1/3/4/0/134017692/aa5f827a7e6.pdf
    • https://cdn.sqhk.co/gufadiviw/agghjib/7329174054.pdf
    • https://cdn.sqhk.co/depifozopupe/WXWcnK3/revuwaworixud.pdf
    • https://cdn.sqhk.co/siduniberame/ghjbhbO/42107408178.pdf
    • https://wipedevibenisi.weebly.com/uploads/1/3/5/3/135315865/3064446.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://917ed8d3-8a9f-4c5c-a3ad-554e533308ad.filesusr.com/ugd/a4e402_88171c99bed2488f937c751269714177.pdf?index=true
    • https://s3.amazonaws.com/xasovewipeje/85731254228.pdf
    • https://s3.amazonaws.com/pokorevalaxex/capital_employed_vs_balance_sheet.pdf
    • https://737c154f-ca75-4484-807d-9d5c19d76377.filesusr.com/ugd/7e84b7_2b5d11cc113e4cb7a525180eadefcf4b.pdf?index=true
    • https://s3.amazonaws.com/firudegix/attack_on_titan_game.pdf
    • https://s3.amazonaws.com/tozaduliwubega/2533995012.pdf
    • https://s3.amazonaws.com/sowirutelevolur/sevawivavalededaneve.pdf
    • https://c301b42c-deab-4116-afcd-a09dd0728425.filesusr.com/ugd/4bb894_6abaa24abbaf448a88b7f1f7ae934040.pdf?index=true
    • https://3175e58c-9db9-4d87-bcb9-15e03531d93d.filesusr.com/ugd/c93210_b8af4e94f9c245599965bf2769e1aad6.pdf?index=true
    • https://451b78f8-089e-4d4d-bc4b-60abb621f7e6.filesusr.com/ugd/7ef0dc_af1f4bf53f144c40a4c05e2381e21989.pdf?index=true
    • https://s3.amazonaws.com/farokof/how_to_describe_heavy_rain.pdf
    • https://c1f973cf-d719-4acb-8f9e-cd83ae4fb94d.filesusr.com/ugd/057766_6dd4a34763e04e11b53e7305358adfb4.pdf?index=true
    • https://b5b764bc-4fc6-48d7-9a4b-423a4d05f225.filesusr.com/ugd/3f2390_0e7f46c7f17746c2a9a8d780f5b9ad59.pdf?index=true
    • https://s3.amazonaws.com/pujirageg/mariam_khan_reporting_live_latest_news_gossip.pdf
    • https://s3.amazonaws.com/lomuper/subaru_pressure_washer_pump_protector.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec0a.bin
6db490d46256d021244b16a0781ae47c7d6aba25c7275144f8787046601fac2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEC0A 5752 bytes
font_01_sfnt_off0000ffa6.bin
b8163b42bede94ad65a541cf1975f7864ea5e3ee83dfb62c203f0cdbc4eec12c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFFA6 10260 bytes

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