Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ac02004cb0f8a87…

MALICIOUS

PDF

69.3 KB Created: 2021-01-05 09:41:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 49f09060cedf0de23d3a195b3c8fcc5d SHA-1: 109dff24f93106d7785efdc0e618574e8eb890de SHA-256: 1ac02004cb0f8a87807afa68a51f1d49a81dc4e155f77119d4ea74c692fac1c9
254 Risk Score

Malware Insights

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

The file is a PDF document that exhibits characteristics of a phishing lure, specifically a payment redirection scam. It contains numerous embedded links, with one identified as a known malicious redirector. The heuristic 'SE_PAYMENT_REDIRECT_LURE' strongly suggests the document's content is designed to trick users into believing there are new or changed banking instructions. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of malicious intent, likely to lead users to a compromised site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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://traffine.ru/123?utm_term=vehicle+registration+collections+ca In PDF document text
    • https://cdn.sqhk.co/girasufu/WYW7WZh/blacklight_poweramp_v3_skin_apk_free_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370791/normal_5f9a1dda3ad81.pdfIn PDF document text
    • https://puxipevabama.weebly.com/uploads/1/3/4/3/134308905/1718099.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413019/normal_5f96ccc51fbdc.pdfIn PDF document text
    • https://kegilosibumu.weebly.com/uploads/1/3/4/5/134513635/kabirutexesaxisu.pdfIn PDF document text
    • https://cdn.sqhk.co/nudabesawi/qphhheo/final_fantasy_iv_advance_cheat.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380527/normal_5f90f45338b40.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/xukanomarexumu/center_tapped_transformer_in_simulink.pdfIn PDF document text
    • https://s3.amazonaws.com/nijudow/gijozarefiberiwisepavus.pdfIn PDF document text
    • https://s3.amazonaws.com/zazelujeju/colkatay_columbus_full_movie_hd_720p.pdfIn PDF document text
    • https://s3.amazonaws.com/gadumagabusodel/children_s_clothing_size_guide_australia.pdfIn PDF document text
    • https://s3.amazonaws.com/nawosineromigi/mibimapaz.pdfIn PDF document text
    • https://s3.amazonaws.com/kosipefojaw/indian_advocate_logo_vector.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwawibu/bt_yahoo_mail_not_ing_attachments.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_off0000d3cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3CB 5024 bytes
SHA-256: 0dd82dda89c55e812e5addd439714c2fd7a7d2cba59d5b779ead873c156adcbd
font_01_sfnt_off0000e4de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4DE 10284 bytes
SHA-256: a830742753777c5aa309bb464eac8cc0914c53415e81e785d449c5212cc595f6

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