Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff2eac2c1ea77475…

MALICIOUS

PDF

77.2 KB Created: 2021-03-28 15:24:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: da46b93441606a278f7bbba485496316 SHA-1: b6c5c46656dd8dbd79d8ed949df8196f420991a6 SHA-256: ff2eac2c1ea77475d29660d3595504013a32876e7793ff244b7997e1f46bf59d
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended for phishing or malware distribution. The document body, though heavily obfuscated, appears to reference computer hardware pricing, suggesting a lure to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://golowaki.ru/strik?utm_term=optiplex+7010+i7+price PDF link annotation
    • http://axecheat5.xyz/american_english_file_1_descargar_gratisjalel.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449987/normal_5fc57198afe90.pdfIn PDF document text
    • http://svoylend.xyz/idolmaster_2_guide56x0h.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490369/normal_605c99bb37ef9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469834/normal_600ab279f29b2.pdfIn PDF document text
    • http://reduslim-italy.site/90031676856vva54.pdfIn PDF document text
    • http://maslovauto.ru/fekafekedujovisr2z9j.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427783/normal_5fe492e135498.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475987/normal_6031840520b05.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bisapovepizaj/bootstrap_3_landing_page_templates_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20bff1d8-83c0-4fe9-9375-09bdb036b961/23505540099.pdfIn PDF document text
    • http://vowaxuf.rf.gd/pesodewitadiluw.pdfIn PDF document text
    • https://s3.amazonaws.com/lixisariwulo/datorukadanokaxodeli.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c8aa38b-3938-478a-a26c-eb5f58853069/ford_e350_oil_change_reset.pdfIn PDF document text
    • https://s3.amazonaws.com/divexikav/ramijulukuzo.pdfIn PDF document text
    • http://retugizi.rf.gd/galadamuritame.pdfIn PDF document text
    • https://s3.amazonaws.com/zeworibuzoza/78396863738.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/da79b798-2772-4061-bc4d-cf73abbd2c96/80873303853.pdfIn PDF document text
    • https://s3.amazonaws.com/dumupa/bahubali_2_songs_naa_telugu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/44ec5f53-6467-4b7d-af26-6106b7c03696/dell_e7450_i7-5600u_8gb_256ssd.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0b272cd-7db1-4a92-be9b-26d0112054c8/89500910978.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d13a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD13A 3184 bytes
SHA-256: 97560ea701d480278f5160e3bc33b12ae9d8068c721827351261d2cd488cf2c5
font_01_sfnt_off0000dc8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC8F 4908 bytes
SHA-256: 985df2dbd28c93392951654093b0289760bb69b5d029ea50a5da25161fd1b146
font_02_sfnt_off0000ed6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED6A 10664 bytes
SHA-256: 21dea3dc3497e92da1572fbffdb333c05c7a704e8da8ebe3e1044de6bbab2bad
font_03_sfnt_off000111cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111CB 16164 bytes
SHA-256: ebd2804bff382343e08f6a42dc45f69f4e794c08b23908ae60ba78ededae74b1

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