Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3bbe98e678d62ac…

MALICIOUS

PDF

86.0 KB Created: 2020-11-20 07:41:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 87aa91e8d2f65a514dd994cfafd7b0cc SHA-1: ed32039e46567f33a173c06c6b138f00c01b5648 SHA-256: d3bbe98e678d62acf14ae8e957d1dea7769b0c02e7ea06874365a4a030124812
156 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which are benign, but one prominent URL is associated with phishing. The document body, though heavily obfuscated, contains text suggesting a lure for movie downloads, which aligns with the phishing URL. The presence of numerous external links and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://traffset.ru/strik?utm_term=kingdom+of+heaven+full+movie+in+hindi+watch+online PDF link annotation
    • https://sitixibabu.weebly.com/uploads/1/3/4/7/134749551/xevivekawupofuj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366633/normal_5f992b7bb3918.pdfIn PDF document text
    • https://pafodezeba.weebly.com/uploads/1/3/4/5/134589846/xesufepakabukizoki.pdfIn PDF document text
    • https://fakimodixoto.weebly.com/uploads/1/3/0/7/130739088/gefomeso-raluwow.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375504/normal_5f8d6d520a7e3.pdfIn PDF document text
    • https://kubupukadumu.weebly.com/uploads/1/3/1/3/131382740/dc3e4d77ec.pdfIn PDF document text
    • https://butiziro.weebly.com/uploads/1/3/4/3/134308177/54e9d815ac.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/sepawi/addiction_recovery_group_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwawibu/apollinaire_poems.pdfIn PDF document text
    • https://s3.amazonaws.com/jujojomojemiz/linksys_wireless-g_pci_adapter_driver.pdfIn PDF document text
    • https://s3.amazonaws.com/wivunonovef/zazokudekamugizo.pdfIn PDF document text
    • https://s3.amazonaws.com/dowavelaxam/fapogexofaxujixi.pdfIn PDF document text
    • https://s3.amazonaws.com/fekazudabo/monster_energy_drink_nutrition_facts.pdfIn PDF document text
    • https://s3.amazonaws.com/dozuga/1809728448.pdfIn PDF document text
    • https://s3.amazonaws.com/xipavir/43193526378.pdfIn PDF document text
    • https://s3.amazonaws.com/jebokizez/96187848121.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000106a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106A7 5164 bytes
SHA-256: fc204bd0a48000603d43143eacaffb6be4e4f37603b9cce1db4cb592fd825a6e
font_01_sfnt_off00011824.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11824 10552 bytes
SHA-256: abed65f8567b97dd01e671a6cb2b117d46ea54037e2f2ae57f596ffcb6936e53
font_02_sfnt_off00013c50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13C50 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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