Malicious PDF — malware analysis report

Static analysis result for SHA-256 63c89f898e2ee4da…

MALICIOUS

PDF

59.5 KB Created: 2020-11-11 21:43:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 236377a548077f3e7505360d396cd92d SHA-1: bc22547a0c50b8c908b0a34b902d07475338a0e1 SHA-256: 63c89f898e2ee4dacd8ba48b3a130fdd885c170f953d116a91a137f8195ea8b3
156 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. One of the primary external URIs points to 'https://traffnew.ru/123?utm_term=our+god+saves+lyrics'. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. No scripts were extracted, but the structure suggests an attempt to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://traffnew.ru/123?utm_term=our+god+saves+lyrics PDF link annotation
    • https://winomumamo.weebly.com/uploads/1/3/1/0/131070375/tirabamosij-nonolaro-pozad-femelalij.pdfIn PDF document text
    • https://zadavutuni.weebly.com/uploads/1/3/4/3/134343582/duponikepemelujed.pdfIn PDF document text
    • https://xonelaxag.weebly.com/uploads/1/3/4/7/134705152/8478950.pdfIn PDF document text
    • https://suxomaloki.weebly.com/uploads/1/3/4/5/134598925/02cb0.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/guwutivupudutu/you_rarely_win_but_sometimes_you_do_meaning.pdfIn PDF document text
    • https://s3.amazonaws.com/tulosa/papa_pizza_games_kizi.pdfIn PDF document text
    • https://s3.amazonaws.com/negonanopix/38237548493.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/82730969963.pdfIn PDF document text
    • https://s3.amazonaws.com/lokijuronig/mojexonanusikiridinujid.pdfIn PDF document text
    • https://s3.amazonaws.com/loneminovu/22_jump_street_full_movie_online.pdfIn PDF document text
    • https://s3.amazonaws.com/pevarijidasalop/91456623878.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/vupokutogukimufutegokof.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1be5244f-dbab-4524-8a60-baeafc705690/C3B6lmeden_C3B6nce_okunmasC4B1_gereken_1001_kitap.pdfIn PDF document text
    • https://s3.amazonaws.com/mizeteb/firefox_apk_fire_tablet.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_off0000adef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADEF 5296 bytes
SHA-256: 9f732a56bacf643d6d4202a2625df446a643691479ff760a1806ec43f27c561d
font_01_sfnt_off0000c00e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC00E 10040 bytes
SHA-256: bbc7a7e4aa3b1ac796fe54fec449ab9d8f670657a9a3afed4f961f0f80e0cd8f

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