Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ac41bd1f41f2745…

MALICIOUS

PDF

68.4 KB Created: 2021-03-01 23:46:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d192dde7f81e6834b5528adb91c27797 SHA-1: 80ab8ee10db3f15192f4e73581e3af8390074852 SHA-256: 0ac41bd1f41f27455c2144b9b02851d55c56388cedf27dd4f3c2d24f4ce957ab
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely intended to deliver a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, suggests a lure related to 'Test dpc apk 2.0.6'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://botokaw.ru/wix?keyword=test+dpc+apk+2.0.6
    • http://natnat.fun/rapodibipologukopimi05w99.pdf
    • https://zedalikekotax.weebly.com/uploads/1/3/1/1/131163955/wevexe.pdf
    • http://remont-kholodilnikov.website/bebufoejnvh.pdf
    • https://zegekeli.weebly.com/uploads/1/3/4/6/134616407/41df79.pdf
    • http://oneplusonemain.xyz/honeywell_rth2300_rth221_wiringlqk83.pdf
    • http://idealica-tufficiale.website/92394669041norex.pdf
    • http://d-youtube.com/15954408272y0qrw.pdf
    • https://jozokuxig.weebly.com/uploads/1/3/2/8/132814463/xutigojobi.pdf
    • http://buvevolu.iblogger.org/cisco_customer_journey_platform_ordering_guide.pdf
    • http://50offstore.info/interior_designer_salary_in_bangaloren3itk.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/polojuliragam/50_shades_darker_music_soundtrack.pdf
    • http://sojisij.epizy.com/calibri_google_font.pdf
    • https://s3.amazonaws.com/pirosisob/react_jss_injectsheet.pdf
    • https://s3.amazonaws.com/lukepepe/lukunamenepivatuguduxop.pdf
    • https://s3.amazonaws.com/ratixifo/specialist_betting_tips_special_vip_mod_apk.pdf
    • http://kuxexulotubi.epizy.com/39162743262.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_off0000ceb4.bin
475fb8e577cb7a219c214c3b59a34a68db8392878a4a014feaeac7f3514936b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCEB4 5412 bytes
font_01_sfnt_off0000e137.bin
878be7fd4e83db74a138cc2a7ebf7e12478178736938c5cb9af47c22c2d70d50		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE137 10564 bytes

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