Malicious PDF — malware analysis report

Static analysis result for SHA-256 1032291b2f9bcb46…

MALICIOUS

PDF

76.5 KB Created: 2020-12-27 19:58:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: a2fe9171f17b06f07c219d6dde155990 SHA-1: 8896c44d31b1a023079b9a17b401716fd3741926 SHA-256: 1032291b2f9bcb4624b7df3babc5140be36383e8cf6fa4c56b7bea9b1735eaf8
214 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with several pointing to known malicious redirector infrastructure. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://ggtraff.ru/123?utm_term=jitney+script+pdf In PDF document text
    • https://cdn.sqhk.co/pitewomepe/nMhcge4/zesigukepanabenexigak.pdfIn PDF document text
    • https://cdn.sqhk.co/woravejafeto/XjjjUgd/rikaliwuki.pdfIn PDF document text
    • https://cdn.sqhk.co/xulawajikigi/h4VhiaX/at_t_global_network_client_error_412.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381083/normal_5fe23da9b2b18.pdfIn PDF document text
    • https://cdn.sqhk.co/lixozimiz/hjBgeha/gorafipani.pdfIn PDF document text
    • https://cdn.sqhk.co/zevivovakok/XWjhkTc/22063293221.pdfIn PDF document text
    • https://wedoweniwan.weebly.com/uploads/1/3/5/3/135308992/vorinovas.pdfIn PDF document text
    • https://nabutamu.weebly.com/uploads/1/3/4/5/134525390/2273776.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/gonuxiwela/toruzuremujuwakul.pdfIn PDF document text
    • https://s3.amazonaws.com/gifiz/epic_sports_live_apk_for_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/xebuvuwov/48659041755.pdfIn PDF document text
    • https://s3.amazonaws.com/sixenogafopoj/60774535616.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_off0000e240.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE240 4676 bytes
SHA-256: 30a4c1171af9468cc83ea989531faec2ee39c7fab61a283e8e2a22a59c81f17e
font_01_sfnt_off0000f236.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF236 10832 bytes
SHA-256: 927dab6e77998ba1000fd185e4a5a1ae9fe6d47a12c6dfe4dfde4143ad218134
font_02_sfnt_off000116ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116EC 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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