Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e0ce542158681bf…

MALICIOUS

PDF

74.6 KB Created: 2021-03-18 23:12:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47e5b3f0744b6fb2462d1df1f2da1260 SHA-1: 9de6f116f1e886c0c03652b7840984eac315f107 SHA-256: 8e0ce542158681bf9ea43129539c2837c587dd70ca9d1069ff448dc4a9cdbc32
164 Risk Score

Malware Insights

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

The PDF contains numerous external links, identified as a link farm, with the primary URL suggesting a lure for a 'magic wand scanner driver'. ClamAV detection and ML classification strongly indicate malicious intent, likely phishing or malware distribution. The presence of embedded URLs and the heuristic for a download button further support this, suggesting the document is designed to trick users into downloading a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 6

  • 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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://botokaw.ru/wix?keyword=magic+wand+scanner+driver
    • http://italia-doc.fun/interesting_answers_to_what_s_upu70mf.pdf
    • https://javisifuwo.weebly.com/uploads/1/3/5/3/135304639/cf7c2f683.pdf
    • http://segway-wheelchair.ru/voyages_in_world_history_3rd_edition_freey2q5m.pdf
    • http://trysalon.xyz/phenol_formaldehyde_resin_powdergnpau.pdf
    • http://sakhavto.ru/zulokanifupozolaburakedosl47f5.pdf
    • http://converstarget.ru/film_kartun_anak2_terbaruh6ptz.pdf
    • http://nopuvobetag.mygamesonline.org/gilodobadovije.pdf
    • https://rukururage.weebly.com/uploads/1/3/0/9/130968917/gexise-mixuraraset.pdf
    • https://kopuzivepepojom.weebly.com/uploads/1/3/4/3/134330145/c7b06694.pdf
    • http://oneitstore.info/yard_machine_snow_blower_spark_plug_sizewgrs4.pdf
    • http://ipatovaalena.ru/jamojuzufozoboviboxfddy8.pdf
    • http://save50it.info/black_diamond_headlamp_flashing_red_while_chargingjorr4.pdf
    • https://dutosagow.weebly.com/uploads/1/3/0/7/130775111/xuduwarijivolik_kaxedetop.pdf
    • http://alternativeinfluencenetwork.net/thoracic_surgery_fellowshippn853.pdf
    • http://linza.media/6978588664582r5v.pdf
    • http://lowabunuzoxa.getenjoyment.net/find_the_fourier_sine_and_cosine_transform_of_e-ax.pdf
    • http://finipupote.mywebcommunity.org/how_to_get_rid_of_a_cystic_pimple_before_it_surfaces.pdf
    • http://govnosiakxws.online/begokusobevokezubute5boeb.pdf
    • https://sopetenoredu.weebly.com/uploads/1/3/5/3/135318191/xominavu_pefozezev_bivev.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://e510c2d5-567e-4a96-89ff-abc18316baf7.filesusr.com/ugd/8a9bcc_3d619b3df4694fa4b8e8c827d5863dc2.pdf?index=true
    • http://patudesaruvob.atwebpages.com/33540798969.pdf
    • https://b09d99c6-da67-4e55-b5b3-baceba093817.filesusr.com/ugd/a69c6c_cdb2b57eeba14c608f0f2c6bbdd5f49b.pdf?index=true
    • https://56148a0a-83a3-4003-94ff-78d3044b7c00.filesusr.com/ugd/6f5f23_d03846c49b284fbfad1d4c481410ccfd.pdf?index=true
    • https://c03439ef-6557-4199-865e-586791a52b6c.filesusr.com/ugd/6bb4a2_64b1390d6335415a9500551295fb54a7.pdf?index=true
    • http://kozogasivufi.myartsonline.com/64914163475.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_off0000e660.bin
d8bc086bdcfd6bfb9624e1e020d2c47b1ab69dfaa68e951b1094820b142e4d2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE660 5232 bytes
font_01_sfnt_off0000f85e.bin
342a85c09e925796f0ee25fa34b41118dc9636d0e62460c05e54733e6907a4b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF85E 10736 bytes

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