Malicious PDF — malware analysis report

Static analysis result for SHA-256 996515c1939bf00f…

MALICIOUS

PDF

77.4 KB Created: 2021-03-25 11:00:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f9e61fd49f11271d9e113f81fc77384c SHA-1: 5e25905545bc84cd3aed78c443579afb7378c12b SHA-256: 996515c1939bf00f02caeadc9861f3653c0686c154e0a22899b165ad1834605b
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URI points to a suspicious domain, likely serving as a lure for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://xezojetit.ru/aws?utm_term=cloud+computing+definition+in+hindi
    • https://pizanege.weebly.com/uploads/1/3/5/3/135391653/9bfc0b.pdf
    • https://tibomomaludo.weebly.com/uploads/1/3/0/9/130969572/xixakupozemugarop.pdf
    • https://static.s123-cdn-static.com/uploads/4460694/normal_5fc8de84befa0.pdf
    • http://rumurel.mywebcommunity.org/ritewij.pdf
    • http://tawaguf.scienceontheweb.net/contax_t2_camera_film.pdf
    • https://cdn-cms.f-static.net/uploads/4424637/normal_604b810851205.pdf
    • https://fezulenigi.weebly.com/uploads/1/3/4/4/134485980/7306634.pdf
    • http://jarevine.mywebcommunity.org/visulepozomeredupudilirod.pdf
    • https://berisojelo.weebly.com/uploads/1/3/0/8/130874511/napixafupadagabep.pdf
    • http://rabizepafuxonag.mypressonline.com/vipuxevojelodijukamafuno.pdf
    • http://nosilekexiwot.mywebcommunity.org/zafaxofuxomiliwubuwu.pdf
    • https://jazitilifa.weebly.com/uploads/1/3/1/4/131414561/016a5cb8950c2.pdf
    • https://static.s123-cdn-static.com/uploads/4482617/normal_5fd085b7b2bd4.pdf
    • http://jajolamuseku.medianewsonline.com/english_textbook_for_class_11_wbchse.pdf
    • https://vukuzimina.weebly.com/uploads/1/3/4/1/134109202/xawixo-purove-wipusof-godibovesuretit.pdf
    • http://luwogexejel.getenjoyment.net/national_awards_2020.pdf
    • http://leziwazedo.mypressonline.com/focusrite_scarlett_18i20_2nd_gen_driver.pdf
    • https://juvuvekogowara.weebly.com/uploads/1/3/1/8/131856935/vilivotutaze_wavebipir_xorezuvosazur_paziduperiku.pdf
    • https://cdn-cms.f-static.net/uploads/4473651/normal_5fe8b9d11cb2a.pdf
    • https://teligodinawam.weebly.com/uploads/1/3/4/4/134457670/2147663.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/niporofez/3137804238.pdf
    • https://s3.amazonaws.com/pevarijidasalop/23498345561.pdf
    • https://s3.amazonaws.com/vuxalirudidel/biometric_attendance_form.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_off0000f315.bin
6c19a0a2d3aa8505f758562d41660128a442b6b4384aa24632c08a0e3e4601ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF315 4988 bytes
font_01_sfnt_off000103ef.bin
3e01f26912213d86ba5a14dbc424af9c373833331a949c41c22dede3a84b7f69		 pdf-font-stream PDF embedded font (sfnt) at offset 0x103EF 10612 bytes

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