Malicious PDF — malware analysis report

Static analysis result for SHA-256 50a69cf8b110d074…

MALICIOUS

PDF

78.8 KB Created: 2021-03-16 02:34:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 2248f56c210c2ee62b80f442a974bfef SHA-1: 5707f0ab57afced28a2d6cfd06436c8e79907bc7 SHA-256: 50a69cf8b110d0745ff75a2480194394ba5ef4933b3ef09ac19d478c4a59cf55
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://lozipotod.ru/strik?utm_term=why+is+my+ariston+water+heater+not+working PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4417527/normal_6033ab685a0b0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476272/normal_60362ceaa9bd2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387924/normal_5fed4a16ae501.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471996/normal_601b3557270e0.pdfIn PDF document text
    • https://cdn.sqhk.co/jigavozef/8np8i2u/football_strike_multiplayer_soccer_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/vefoveted/gjfifWr/gunnersaurus_wages_80k.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467571/normal_5fdc0780e2cea.pdfIn PDF document text
    • https://cdn.sqhk.co/gitovera/iijbje0/55391391076.pdfIn PDF document text
    • https://cdn.sqhk.co/lutadamafe/gjjego7/57425329073.pdfIn PDF document text
    • https://cdn.sqhk.co/bogulevim/8ZZuCgg/51141603543.pdfIn PDF document text
    • https://cdn.sqhk.co/dekorasenu/ihi6XvO/42103482756.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/ditiruz/38997425774.pdfIn PDF document text
    • https://s3.amazonaws.com/muvazi/burma_movie_in_tamilrockers._gr.pdfIn PDF document text
    • https://s3.amazonaws.com/gotitibekovi/bafg_formblatt_3_zum_ausfllen.pdfIn PDF document text
    • https://s3.amazonaws.com/ritoma/noganoputafebije.pdfIn PDF document text
    • https://s3.amazonaws.com/vovuzize/37071855738.pdfIn PDF document text
    • https://s3.amazonaws.com/nigimul/diwejejomesunuvawu.pdfIn PDF document text
    • https://s3.amazonaws.com/zetituri/tagenakixun.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/78849605786.pdfIn PDF document text
    • https://s3.amazonaws.com/veraxawewib/89399127826.pdfIn PDF document text
    • https://s3.amazonaws.com/kisimujuk/84208940984.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f57a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF57A 5336 bytes
SHA-256: 0364d83b2c270e6ff112118d8b6886d136ca542a44b97cac723f7061d1cd87a9
font_01_sfnt_off00010796.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10796 11284 bytes
SHA-256: b2f4e7775ce489a4f18e33e6364a9e9838674c6ab088cad9360531578a3126b4