Malicious PDF — malware analysis report

Static analysis result for SHA-256 c17338abc8d64bae…

MALICIOUS

PDF

70.0 KB Created: 2021-06-02 03:56:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1f47473aca1c1576c5b0ebe49f98f66a SHA-1: 08555f958ad5c379509c1f5334090c343cdf09b2 SHA-256: c17338abc8d64baed7da0e271ce24ec896bc2f1295a10b2456722b33472409c6
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that points to a suspicious domain, likely intended to redirect the user to a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing or trojan PDF. The document body, though heavily obfuscated, appears to be a lure related to hair dye mixing, which is a common tactic for social engineering.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://crysiq.ru/pbw?utm_term=what+do+i+mix+with+wella+koleston
    • https://zefilezagomi.weebly.com/uploads/1/3/4/4/134474677/6245243.pdf
    • https://novomegaweg.weebly.com/uploads/1/3/4/7/134738931/79804.pdf
    • https://lerekisisag.weebly.com/uploads/1/3/1/4/131408666/0818cc78f08b44.pdf
    • https://rowusebejaron.weebly.com/uploads/1/3/1/6/131637242/fapenitijofogi.pdf
    • https://zifidobu.weebly.com/uploads/1/3/4/3/134371145/depadixisaji-jibulupom-vuxipitel-budijovotanolik.pdf
    • https://cdn-cms.f-static.net/uploads/4494661/normal_605db438b50e8.pdf
    • https://cdn-cms.f-static.net/uploads/4468286/normal_6018dc333e544.pdf
    • https://babuzusevajuwo.weebly.com/uploads/1/3/4/8/134878483/pegobuvotexejuvu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://kelivesas.pbworks.com/f/loreal_hicolor_mixing_instructions.pdf
    • https://uploads.strikinglycdn.com/files/398a79bf-75f3-4fb6-b3a6-1b1993acac43/66238281645.pdf
    • http://sorawako.pbworks.com/w/file/fetch/144477654/zowujufagawa.pdf
    • https://uploads.strikinglycdn.com/files/9cfbb602-b55b-4014-86cf-c9ed67a8fcfd/smc_ez_connect_g_54mbps_driver_download.pdf
    • https://uploads.strikinglycdn.com/files/0908fbd2-dbb0-458e-865d-5cc11a3df945/xelazenerebufib.pdf
    • http://sinorodolu.pbworks.com/w/file/fetch/144444921/the_secret_life_of_pets_2_full_movie_in_hindi_watch_online_hd.pdf
    • https://uploads.strikinglycdn.com/files/99490437-d734-43bb-a9a3-02aa76aa75c5/tipos_de_organizadores_graficos_creativos.pdf
    • https://uploads.strikinglycdn.com/files/444f605e-2ad4-4ef0-a110-fbd16267f9b5/lazug.pdf
    • http://jesababa.pbworks.com/f/2246436146.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_off0000d3f6.bin
e363326e722a47a2761355e93d90ce74f5a879e8e8cd5cc9d880f7e6a4a112bc
pdf-font-stream PDF embedded font (sfnt) at offset 0xD3F6 5204 bytes
font_01_sfnt_off0000e59e.bin
e6d1eea939442ac8c2ccbc9556cf32270bd97c747b428a81d5853e63b5f4db6c
pdf-font-stream PDF embedded font (sfnt) at offset 0xE59E 10924 bytes