Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e5a13e0561a783b…

MALICIOUS

PDF

198.9 KB Created: 2020-11-24 03:49:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 522b95721fb35ad5ec1559e37da47c01 SHA-1: a7571a3d41b3305188fcf4b8622c671a7bd6b1be SHA-256: 2e5a13e0561a783beaead2162adb0a52849f01a8e37d82730c77ceef8420788e
96 Risk Score

Malware Insights

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

This PDF document was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL pointing to 'trafftec.ru', which is likely part of a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it is designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://trafftec.ru/aws?utm_term=carbon+methane+reforming PDF link annotation
    • https://fategebedabeno.weebly.com/uploads/1/3/4/7/134718848/bcb576e4.pdfIn PDF document text
    • https://lifotuvuzaraxur.weebly.com/uploads/1/3/0/7/130775275/4931230.pdfIn PDF document text
    • https://detazemunowovi.weebly.com/uploads/1/3/4/7/134704720/posuzup.pdfIn PDF document text
    • https://batibama.weebly.com/uploads/1/3/4/3/134338422/gimamaje.pdfIn PDF document text
    • https://xoxilorimisutoz.weebly.com/uploads/1/3/4/7/134705863/95cb8c0296d7.pdfIn PDF document text
    • https://gawugabel.weebly.com/uploads/1/3/4/3/134361726/4699107a99ce1.pdfIn PDF document text
    • https://peziwotikiju.weebly.com/uploads/1/3/4/6/134602895/tegapavuwo_bamatotadujuguz_nikonojijomazom.pdfIn PDF document text
    • https://nefolebar.weebly.com/uploads/1/3/4/4/134400051/623d738d7.pdfIn PDF document text
    • https://nitetezelimon.weebly.com/uploads/1/3/1/4/131438651/kupudaf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/70ea3e16-9aee-4974-beed-844fc133ebb6/fapasoret.pdfIn PDF document text
    • https://s3.amazonaws.com/gotijejaj/hsc_biology_textbook_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fe52603c-00bb-49e0-8141-5cfffa8794b2/63319380088.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0057cd9-131b-4f47-b30b-abefd27bbe43/senovopusemev.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002b290.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B290 5016 bytes
SHA-256: 528d3419236d481faa34b1e8361482073ef19baf1276d7b05b065da77734740e
font_01_sfnt_off0002c37b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C37B 18052 bytes
SHA-256: ca6f9617bfda70cafde849eb444b2e5bc6c3bcde6c50d075da39889ad0a76b45
font_02_sfnt_off0002f8e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F8E4 16060 bytes
SHA-256: 99ddc6f5858eb134f8024171ebe717cbd02485c31471b921a5021903b5272953

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