Malicious PDF — malware analysis report

Static analysis result for SHA-256 62005ed1a8536d0f…

MALICIOUS

PDF

186.0 KB Created: 2021-03-21 06:26:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b473c8d5f5a064be67e35203df161136 SHA-1: 29575a67a960726ba4956ed980b6470fdbfc32be SHA-256: 62005ed1a8536d0f12a9a480bd73d9b9aa6b3e7abc3f186c14aa46634303cb0e
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically identified as a phishing trojan. It contains an embedded URL pointing to 'ponafet.ru', which is likely used to host a phishing page. The document body, though heavily obfuscated, suggests a lure related to 'Chase mortgage address'. No scripts were extracted, but the presence of external URIs and the phishing detection strongly indicate a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://ponafet.ru/wix?keyword=chase+mortgage+address+in+louisville+ky
    • https://xovobinawulum.weebly.com/uploads/1/3/4/8/134883327/3550093.pdf
    • http://alisabor.design/pafosigejuletijutixawagali06k1.pdf
    • https://vezefujofebiv.weebly.com/uploads/1/3/5/3/135304234/pofawerasemigi-watisutojejile.pdf
    • http://varuvoruva.iblogger.org/susifurubuxoja.pdf
    • https://tilawifi.weebly.com/uploads/1/3/4/4/134480999/tegawosu.pdf
    • http://wowunoli.22web.org/witevuvozojesif.pdf
    • http://clubstore.info/lean_analytics_espaol_gratis_descargarymi18.pdf
    • https://motisodufar.weebly.com/uploads/1/3/5/4/135400919/900845.pdf
    • http://fortysgjdk.fun/29805383633rwkhj.pdf
    • http://insurancecarusa.com/codigo_ascii_acentos_portugues0pkmm.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://pakatikik.epizy.com/cooking_academy_4_restaurant_royale.pdf
    • https://78905da9-dd21-4190-abaa-c894c042e703.filesusr.com/ugd/851c7c_c8ba0a274b914c228fda2b5b23f003cf.pdf?index=true
    • https://eed7fa7e-4f31-4ba6-8269-e73f07ac74c5.filesusr.com/ugd/93374d_e886aaf2983a4bfe86abdcd859cdaa9c.pdf?index=true
    • https://7f06b679-e14d-4525-8955-d56a7cf6f710.filesusr.com/ugd/79e5df_e694baa4b6bc463fa4b0aff6c1d56e0a.pdf?index=true
    • https://9e77dbea-16d6-438e-9859-4a68c5388828.filesusr.com/ugd/3225da_f2511623930f430f8e18d4e250ad8d0b.pdf?index=true
    • https://5d9de69b-f80b-44d6-9c2d-9027806fef0b.filesusr.com/ugd/e26ad2_3964b696e46f488a8d5898308e9c0325.pdf?index=true
    • https://bf23b77b-49a9-4bef-a898-a03cfb94aefa.filesusr.com/ugd/134172_2bc3dd041c5f40429bbf2d8a054d42f4.pdf?index=true
    • https://uploads.strikinglycdn.com/files/144db4c1-1b06-4c87-afb5-a31018c05f94/vonuloxavarototeba.pdf
    • https://uploads.strikinglycdn.com/files/c0566463-e0e1-4b56-a120-f2e1fc065ac6/22910862385.pdf
    • http://sewugobavi.rf.gd/microsoft_sql_server_2019_community_edition.pdf
    • https://uploads.strikinglycdn.com/files/d2fb88ab-67e9-4694-bd66-db85da4133a0/nipawarax.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
    • 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_off0002878a.bin
4ba574096ac09b7054dd6beed407f5522e70ef672146fba46f97a62d86362f4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2878A 5372 bytes
font_01_sfnt_off000299a7.bin
89df058950d1b19cf7b65ec0339448c5b131e4608590c50a1e879b7498982dc5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x299A7 12764 bytes
font_02_sfnt_off0002c4a4.bin
ee796b0d072c3da784915329e3d40b60a5f3ef2e5e1937d62fc4d7a384cee729		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C4A4 16092 bytes

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