Malicious PDF — malware analysis report

Static analysis result for SHA-256 e21ca08cbcc25070…

MALICIOUS

PDF

77.3 KB Created: 2021-06-03 21:48:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 205dc8bd58fb577394e7aded84308e24 SHA-1: 824ad4697df3f360a3c8962aafcf698d2c1025a5 SHA-256: e21ca08cbcc250709dd7481a9da1bcb92130e7707b1ebd4446138df8ceef1e1b
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URL that leads to a suspicious domain, likely intended to trick the user into visiting a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to 'metallic compounds'. No scripts were extracted, but the presence of external URIs and the overall detection profile points to a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • 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://philabc.ru/pbw?utm_term=propiedades+fisicas+y+quimicas+de+compuestos+metalicos
    • https://static.s123-cdn-static.com/uploads/4412899/normal_5fe37a563b311.pdf
    • https://xuvuluvibes.weebly.com/uploads/1/3/4/4/134494650/3678cbf5c49b01.pdf
    • https://zixixowiw.weebly.com/uploads/1/3/4/6/134605173/4496425.pdf
    • https://tulopudegiwidal.weebly.com/uploads/1/3/0/7/130739196/barenepu.pdf
    • https://rigukolanerimi.weebly.com/uploads/1/3/4/5/134519373/dunilufagupuweralili.pdf
    • https://ruxamaref.weebly.com/uploads/1/3/4/7/134749336/vopijager_xazakujezu_vitur.pdf
    • https://bimozasobo.weebly.com/uploads/1/3/1/3/131398313/zupaposemupakupepot.pdf
    • https://pekudexuvu.weebly.com/uploads/1/3/1/4/131437333/7973039.pdf
    • https://static.s123-cdn-static.com/uploads/4365594/normal_5fcbd7957c418.pdf
    • https://cdn-cms.f-static.net/uploads/4459318/normal_601a678c39864.pdf
    • https://cdn-cms.f-static.net/uploads/4450145/normal_6068d7d67b451.pdf
    • https://cdn-cms.f-static.net/uploads/4476142/normal_600b3c9d155e8.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://pakesobiroge.pbworks.com/w/file/fetch/144535602/43378266112.pdf
    • https://uploads.strikinglycdn.com/files/01961ba0-501c-413d-a6c1-ef1a790879f5/woxodog.pdf
    • https://uploads.strikinglycdn.com/files/44d99692-2199-484d-b0e2-e2d0a82506aa/nesakuwemarikerijigebus.pdf
    • http://jeselivid.pbworks.com/f/engineering_mechanics_dynamics_13th_edition_solutions_manual_free.pdf
    • http://wikitaxif.pbworks.com/w/file/fetch/144540639/gakafivinufikedas.pdf
    • https://uploads.strikinglycdn.com/files/fcae19b6-1a8a-4897-b0d1-c58244af557a/97141656600.pdf
    • https://uploads.strikinglycdn.com/files/5b77903f-2893-460e-aeb0-f8f0d77c5571/organic_chemistry_tutor_youtube_face.pdf
    • http://jeselivid.pbworks.com/w/file/fetch/144503196/microsoft_sql_server_2008_r2_standard_download_iso.pdf
    • https://uploads.strikinglycdn.com/files/292eb655-3660-4d42-9b60-6b246f096977/14826800992.pdf
    • http://zegugas.pbworks.com/f/tupapuf.pdf
    • http://pamotekegopa.pbworks.com/w/file/fetch/144439434/sovili.pdf
    • http://sipibujewadu.pbworks.com/w/file/fetch/144482673/eitici_ouk_oyunlar_bedava_oyna.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_off0000ee8b.bin
de260d5755de128367fadb24707f38119ae466452f64342520f5df939b522eb7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEE8B 5528 bytes
font_01_sfnt_off0001014c.bin
48dfd8d0a4a7b1c3d68856ff3f50b456ce9f43e760145fa19316bae7e2322f64		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1014C 11748 bytes

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