Malicious PDF — malware analysis report

Static analysis result for SHA-256 29aa1d7c33b6748d…

MALICIOUS

PDF

76.8 KB Created: 2021-01-22 06:48:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 0019c98e1f0a37614e69ac0be02867e9 SHA-1: e9c0e2f254c5ffb84bd2259c05566cb6fd8d2e9c SHA-256: 29aa1d7c33b6748da4d2d5f305d4709585c8d90f3d619ae709a72b77028b089a
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a large number of embedded links, many of which point to a link farm designed to redirect users to potentially malicious sites. Heuristics indicate the PDF is a malicious redirector and part of a link farm, and ClamAV detected it as a phishing trojan. The primary attack vector appears to be luring users through embedded links, likely as part of a phishing or scam campaign.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://traffking.ru/aws?utm_term=kindergarten+phonics+books+pdf In PDF document text
    • https://site-1237964.mozfiles.com/files/1237964/emotional_status_video_in_telugu.pdfIn PDF document text
    • http://gijutudubesakuz.iblogger.org/lubufako.pdfIn PDF document text
    • https://site-1185553.mozfiles.com/files/1185553/conflict_management_strategies_used_in_the_workplace.pdfIn PDF document text
    • https://navuvosukogeguf.weebly.com/uploads/1/3/1/4/131454151/tevifebaxo_vafowej.pdfIn PDF document text
    • https://site-1172650.mozfiles.com/files/1172650/nadegegoxijuxapono.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/sebunuzu/transformar_de_grados_fahrenheit_a_rankine.pdfIn PDF document text
    • http://rifoxofome.rf.gd/cpt_incoterms_full_form.pdfIn PDF document text
    • http://fukasutatota.rf.gd/chandu_malayalam_dubbed_movie_songs.pdfIn PDF document text
    • http://zapizuw.rf.gd/gerukemediwikerifemom.pdfIn PDF document text
    • https://s3.amazonaws.com/jalasilunaz/wowimafanimu.pdfIn PDF document text
    • http://wulimazef.epizy.com/british_government_nutrition_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/bojafazes/audio_converter_softonic.pdfIn PDF document text
    • http://suzawelo.epizy.com/android_vs_ios_security_which_is_better.pdfIn PDF document text
    • https://s3.amazonaws.com/rorives/bamumupib.pdfIn PDF document text
    • http://gidepajujida.rf.gd/avs_video_converter_full_crack_free.pdfIn PDF document text
    • https://s3.amazonaws.com/nemafu/oxford_german_dictionary_apk_free.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_off0000ed3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED3E 5556 bytes
SHA-256: cb61bf0500bd7c5672ad199c0a7af2bbbf96e8f550d2c137b992c517e2076f20
font_01_sfnt_off00010018.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10018 11148 bytes
SHA-256: 64aa95302b7a6781676641f59c3902ba034400340b475de616a43a124aa5cf3d

Open this report in the interactive analyzer, or submit your own file for analysis.