Malicious PDF — malware analysis report

Static analysis result for SHA-256 01ea1a68d8c00055…

MALICIOUS

PDF

79.6 KB Created: 2021-09-06 18:43:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 9adc51d679909fa4f0cfc99a083eea3c SHA-1: 7a55986270acf643f40a4202e6ba04e9c453057d SHA-256: 01ea1a68d8c00055656de3e850fc23e4babbaf35072c7d2eaa5258c9a4a3fad9
156 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to numerous compromised WordPress sites, suggesting a phishing or malware distribution campaign. The presence of multiple external URIs and the nature of the hosting (compromised CMS uploads) strongly support this attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://globalazeri.az/wp-content/plugins/super-forms/uploads/php/files/3vpfee88297o2diejea0e1ohi6/sedusowovudekume.pdf In PDF document text
    • http://www.highlandmetals.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16118c982ac2ef---kasivebosovejomubajaposo.pdfIn PDF document text
    • https://pankajplast.com/ckfinder/userfiles/files/32617649274.pdfIn PDF document text
    • https://atamergranit.com/userfiles/file/nopejizewiwixomamerutix.pdfIn PDF document text
    • https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/eaaf7faaf33b5557156229e1c23ddb25/5831133287.pdfIn PDF document text
    • http://jpcadonate.com/clients/4/48/4863a0bac697dd4b44f4a1b1fb44835f/File/tinev.pdfIn PDF document text
    • http://notarbrazda.cz/userfiles/file/xazimogubazuposanijuxo.pdfIn PDF document text
    • http://thegioichuyendong.info/app/webroot/upload/files/tazakurafejeno.pdfIn PDF document text
    • https://cgeminfos.ma/upload/file/setoladodadulotuvuzag.pdfIn PDF document text
    • http://www.propper-droppers.nl/files/file/33567159673.pdfIn PDF document text
    • https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c1968ba00a---lupim.pdfIn PDF document text
    • https://martybermanassociates.com/wp-content/plugins/super-forms/uploads/php/files/b0804449e4928cf4096e18662bd03d9b/xuxudigigaxa.pdfIn PDF document text
    • http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7e0b197e7a---sedofuvipudiloxuwitu.pdfIn PDF document text
    • http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160761fa6df6be---gikuxa.pdfIn PDF document text
    • http://phs60sand70sdecadesreunion.com/clients/880504/File/mavubaxunar.pdfIn PDF document text
    • https://tarsiman.ee/files/file/34064929457.pdfIn PDF document text
    • http://urbanconstructions.org/images/uploadedimages/file/91519451262.pdfIn PDF document text
    • https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b32b4b12c7a---wekib.pdfIn PDF document text
    • http://bmcnx.com/userfiles/file/76655354800.pdfIn PDF document text
    • http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1606fae63b852c---vozaraxanidatumat.pdfIn PDF document text
    • https://www.emma-solutions.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607dae76ea512---99159163651.pdfIn PDF document text
    • https://aljuboori.com/userfiles/files/5238007958.pdfIn PDF document text
    • http://dok-vo.ru/userfiles/file/lijepijiperonifupavalufad.pdfIn PDF document text
    • http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/b49eb9c9522558fc0952d7ff943208dd/zesevona.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=hp+envy+4500+manual+for+macPDF link annotation
    • 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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d3f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3F3 16924 bytes
SHA-256: cc01832fca68c42d6db3ffd4f5c600627ae6a09efffffa710ddb2db8b6340693
font_01_sfnt_off0000ff9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF9C 10888 bytes
SHA-256: 5e34764810b97bf66e16d9725eb5de25a30dca78a571f4f8addcb8e0b709bf0b
font_02_sfnt_off000118d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118D6 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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