Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fc973403b695a17…

MALICIOUS

PDF

80.1 KB Created: 2021-01-14 23:01:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 87a0bfe68f8c91d9ce33e3cf449f638c SHA-1: e7573f22a78476604afd98ce339ead129dcc8581 SHA-256: 5fc973403b695a17859dec7477f1daa5d34b46da77a16d7ecd6147e4f0dc6f38
126 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with one specifically pointing to 'trafffi.ru' and referencing 'disney+magic+kingdom+apk', suggesting a phishing or malware distribution lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or trojan distribution. No scripts were extracted, but the PDF structure and embedded links are indicative of a malicious document.

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://trafffi.ru/123?utm_term=disney+magic+kingdom+apk PDF link annotation
    • https://site-1083549.mozfiles.com/files/1083549/sidorodotamufur.pdfIn PDF document text
    • https://site-1172047.mozfiles.com/files/1172047/nosovolizanasukutixogugip.pdfIn PDF document text
    • https://cdn.sqhk.co/bogulevim/miaijdb/animal_planet_gold_earring.pdfIn PDF document text
    • https://cdn.sqhk.co/zunesunatiri/5BBiiia/build_battle_code_for_minecraft_pe.pdfIn PDF document text
    • https://site-1178979.mozfiles.com/files/1178979/vodotiboduna.pdfIn PDF document text
    • https://site-1083792.mozfiles.com/files/1083792/how_to_bake_pumpkin_seeds_ranch.pdfIn PDF document text
    • https://site-1174133.mozfiles.com/files/1174133/39579782195.pdfIn PDF document text
    • https://falatunasozenu.weebly.com/uploads/1/3/4/7/134762474/duxutital.pdfIn PDF document text
    • https://pagafamowadaf.weebly.com/uploads/1/3/4/8/134878907/b50436.pdfIn PDF document text
    • https://site-1168020.mozfiles.com/files/1168020/kusaralexumejepelotisukug.pdfIn PDF document text
    • https://site-1171658.mozfiles.com/files/1171658/samsung_edge_lighting_apk_xda.pdfIn PDF document text
    • https://site-1179698.mozfiles.com/files/1179698/bronze_age_game_guide.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/baxekojojexusol/think_central_k-6_login.pdfIn PDF document text
    • https://s3.amazonaws.com/sesafefanulokam/wolf_d_d_5e.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_off0000fabd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFABD 5428 bytes
SHA-256: 6621fcd0cf3ad7af734eb0fc0616e49c180da5b17dc1f9d39f0fc5347dd72069
font_01_sfnt_off00010d3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D3F 11204 bytes
SHA-256: b41515264936db758d9ec5d7877a5114b3ca5ffeaecbeff073087d481c493f83

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