Malicious PDF — malware analysis report

Static analysis result for SHA-256 70e33b9ff16f1560…

MALICIOUS

PDF

84.3 KB Created: 2021-06-26 23:52:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 9128f79b2da8544c983e08aea894c99f SHA-1: 6103024b8cc22e46b63123a1b964b4a1b4ea490e SHA-256: 70e33b9ff16f1560b88b92127fdf8d8c61407464770928a7c5cdf3a4247b3296
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged by ML classifiers and ClamAV as malicious, exhibiting characteristics of an advance-fee scam. It contains numerous links to external PDFs hosted on compromised WordPress sites and disposable domains, suggesting a phishing or malware distribution attempt. The document's structure and content align with lures used to trick victims into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://www.electriclighting.com/wp-content/plugins/super-forms/uploads/php/files/ef194d5699b762443a3d5d7e4712657c/tesamoruxevizexakadusof.pdf
    • http://hzjksj.com/images/upload/File/19563372346.pdf
    • http://taskentcompany.com/userfiles/file/pinoreloku.pdf
    • http://www.esthemed.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160b45bc86a779---jelejixilozidivudojoveti.pdf
    • https://gangnampools.com/contents//files/belumal.pdf
    • http://hoangnamjsc.com/upload/files/42263388264.pdf
    • http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7c1e4c9177---47956296518.pdf
    • https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1d27070fb9---bunoraxok.pdf
    • https://kaxtongroup.com/home5/maxconne/public_html/kaxtongroup/assets/images/newspostimages/files/57530228498.pdf
    • http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/57a07a0e82968ad7beec908a4d1c6dec/kutuzifagufesomawol.pdf
    • https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160715784030e1---29309999423.pdf
    • https://qualitylightsolutions.com/wp-content/plugins/super-forms/uploads/php/files/85bd651b798b044a052e76f1cac74d7f/50430877428.pdf
    • https://ajitcoatings.com/uploads/37739383657.pdf
    • https://rebel-guitars.com/wp-content/plugins/super-forms/uploads/php/files/2f5a04cf4433b604e05e38ca4ec57715/10917178326.pdf
    • https://lescourailleurs.com/upload/editor/file/xexilemajanug.pdf
    • https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/43610ee6a5abe6c368e731855c273450/votetusosatipaja.pdf
    • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac00d3c6f96---kukurizatuku.pdf
    • http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/e6b5dd8b88e0d59c26f6d97370c4e065/wisilumegimajeb.pdf
    • http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/16076745b27a55---feserefelovavunizinab.pdf
    • https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/9f7f516eefb785b5ae7bbd90c1a66127/13946530471.pdf
    • http://global-insurance-broker.de/downloads/luwerasidapopikodosusuzoj.pdf
    • https://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/323e34416858a5d104a8b50a0472a1d9/bezufepiri.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=indirect+levy+tax
    • 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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e814.bin
f135ea20339a0770d16435273c19c8904ef9b7bbb608a7542be88bc1d244e405
pdf-font-stream PDF embedded font (sfnt) at offset 0xE814 10308 bytes
font_01_sfnt_off0000ff65.bin
faeb7550f1a93db4f56f04ca3262d2a6ecf2ffc19e389abc42ba0307ff67d429
pdf-font-stream PDF embedded font (sfnt) at offset 0xFF65 17080 bytes
font_02_sfnt_off00012c24.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x12C24 16792 bytes