Malicious PDF — malware analysis report

Static analysis result for SHA-256 c216fd886e0c47fa…

MALICIOUS

PDF

83.1 KB Created: 2021-04-02 22:43:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2faa61c5e761e915fa7f28b734663860 SHA-1: d67dca94843d7a83051fa5565f0bb48730e7b7b5 SHA-256: c216fd886e0c47fa253209279cbedd23b5cc971a89df9d6d20b36c9a831aca47
116 Risk Score

Malware Insights

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

The file is a PDF document detected as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to 'https://lozipotod.ru/123?utm_term=corresponding+parts+in+a+congruence+worksheet', which is likely a phishing or malware distribution URL. The heuristic 'SE_QR_LURE' suggests a QR code might be present, further indicating a phishing attempt. No scripts were extracted, but the presence of external URIs and the overall detection suggest a phishing or downloader attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://lozipotod.ru/123?utm_term=corresponding+parts+in+a+congruence+worksheet
    • http://topcreditreport.info/34385858644kf796.pdf
    • https://cdn.sqhk.co/pesegozod/p9dDheb/30559238328.pdf
    • http://dogalijun.scienceontheweb.net/vovarufekolikamo.pdf
    • https://cdn.sqhk.co/nuduniguwufo/IshbMDp/general_grievous_starfighter_bricklink.pdf
    • http://kijekidajefi.getenjoyment.net/strength_training_anatomy_3th_edition_free.pdf
    • http://fruits-summer.fun/kupovejavu6ga1b.pdf
    • https://cdn.sqhk.co/zajagatetode/fMUpMif/are_blundstone_suede_boots_waterproof.pdf
    • https://cdn.sqhk.co/vibebexez/9ifieLn/88055625758.pdf
    • https://cdn.sqhk.co/naketego/4FLcicp/filaguref.pdf
    • http://fesurowejo.mywebcommunity.org/bangla_kobita_book_free_download.pdf
    • http://vozuzutiwajuzip.getenjoyment.net/91198917901.pdf
    • http://italysummer.fun/lancing_steel_build_guide6c9zy.pdf
    • http://strapslap.online/diversidad_cultural_y_linguistica_de_mexicogyqvj.pdf
    • http://zenajok.medianewsonline.com/birla_mutual_fund_stp_form.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/aace808d-ec9f-40e0-ae4b-9fbe520164cd/baofeng_uv-5r_schematic.pdf
    • https://d75bbb92-b0e4-4b50-83e6-2443e695523b.filesusr.com/ugd/bc73b9_3c047756350d46319c278c3ca8388659.pdf?index=true
    • https://f37c3615-20b0-4e70-b1e7-2acf34113780.filesusr.com/ugd/1e533a_df38d37825f548ca8bd77bcd5cc492af.pdf?index=true
    • https://e86c6366-0652-46cb-9e1f-5633a133dba9.filesusr.com/ugd/510a18_94baffb28f254709b5c4aa1a846208cc.pdf?index=true
    • https://uploads.strikinglycdn.com/files/672e1d4f-2189-4c9c-a440-d2cada658c06/vakasutubazerunizapusupam.pdf
    • https://uploads.strikinglycdn.com/files/39a4051f-64d8-4130-9f0c-712f61d3390d/watchman_nee_especially_the_spiritual_man.pdf
    • https://d4cba69e-f3c5-4a64-9e40-69ba24924691.filesusr.com/ugd/b73feb_a08cb5c0d7b448b7856ff1526d602b58.pdf?index=true
    • https://uploads.strikinglycdn.com/files/e65b391f-3945-4aad-ab66-7fc6d3a80670/52524587438.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/
    • https://savannah.gnu.org/projects/freefont/
    • http://www.gnu.org/licenses/
    • http://www.gnu.org/copyleft/gpl.html
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f251.bin
0d60b0745bb1009bf8bf92213af8976a8e4648609539f740e2609cb3c49ebfeb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF251 6832 bytes
font_01_sfnt_off000103a2.bin
f87e6dea333c6d8b32aa212ac44994ca157e45d36b12d97c48ff49982214babf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x103A2 5364 bytes
font_02_sfnt_off000115ec.bin
c1d2d6d52a2320937d5fb8e64597663a0495cd8ab2e1428888f87d98c5609354		 pdf-font-stream PDF embedded font (sfnt) at offset 0x115EC 11332 bytes

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