Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5b1c264ccf01f38…

MALICIOUS

PDF

76.9 KB Created: 2021-01-19 21:07:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: b9a3abf4a0b4f511c39f10719a078b9b SHA-1: 2dc5b09bfb27d69e3d3dff68e5fbbe23b2a97cfd SHA-256: f5b1c264ccf01f38c3b956748b742205042f76242fc6643de2f9bb71031d67e4
156 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which are SEO-optimized to appear as search results for various products. One such link points to 'traffine.ru', which is likely a malicious domain used for phishing or malware distribution. The ClamAV detection and ML classifier strongly indicate malicious intent, classifying it as a phishing trojan.

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 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://traffine.ru/123?utm_term=asus+zenbook+ux303ub+price+philippines PDF link annotation
    • https://zujomesesewega.weebly.com/uploads/1/3/4/9/134902804/romapuxaxep.pdfIn PDF document text
    • https://sisodiwitamusoz.weebly.com/uploads/1/3/2/6/132681746/mezevigazujul.pdfIn PDF document text
    • https://fafidapumexeri.weebly.com/uploads/1/3/1/4/131437561/fenutodo_sizufumigefixi.pdfIn PDF document text
    • https://fakimodixoto.weebly.com/uploads/1/3/0/7/130739088/9650169.pdfIn PDF document text
    • https://mejefarekobuk.weebly.com/uploads/1/3/4/3/134338461/20a8b9389121.pdfIn PDF document text
    • https://nedotumawu.weebly.com/uploads/1/3/4/6/134626041/jakamokive.pdfIn PDF document text
    • https://fawefugixizim.weebly.com/uploads/1/3/1/3/131383791/juwipixuzejiresoxij.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/paxivogedewilu/international_phonetic_alphabet_2017.pdfIn PDF document text
    • http://govujetimavex.epizy.com/god_bless_america_kate_smith_sheet_music.pdfIn PDF document text
    • http://jadupapobixe.epizy.com/createspace_journal_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/simujix/anjaana_anjaani_movie_song.pdfIn PDF document text
    • http://guwivuvasexi.epizy.com/agilent_54624a_oscilloscope_manual.pdfIn PDF document text
    • http://bikikifuxax.epizy.com/76563316886.pdfIn PDF document text
    • https://s3.amazonaws.com/ragejufa/rakim.pdfIn PDF document text
    • https://s3.amazonaws.com/wetowuzuxit/antivirus_android_terbaik_dan_ringan.pdfIn PDF document text
    • https://s3.amazonaws.com/nosepevozux/adjointe_administrative_formation_alma.pdfIn PDF document text
    • https://s3.amazonaws.com/visagogijulep/hidrostatica_ejemplos.pdfIn PDF document text
    • https://s3.amazonaws.com/kakekojezutok/barbara_jean_blank_2019.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000df97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF97 5232 bytes
SHA-256: 06af2ac14096c7ff5f6d33f2b1282a527379fdc3765fdaa59198859553716d22
font_01_sfnt_off0000f14b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF14B 11308 bytes
SHA-256: 984e137aa3a483354d26652d389773fc8a4decf27bab8e96d93542fcce554a27
font_02_sfnt_off00011835.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11835 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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