Malicious PDF — malware analysis report

Static analysis result for SHA-256 1de1cdf1f69d12f4…

MALICIOUS

PDF

81.4 KB Created: 2021-04-11 04:51:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-28
MD5: 9b0c9c07c1569cb704245e42b682762e SHA-1: ecd27419e8dd988bed23b38a68583884cb16cc66 SHA-256: 1de1cdf1f69d12f4a9231bccd7f2f85256adfeae280f34c20d0ee8dec24314fc
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, with one prominent URL leading to 'baarspo.ru', suggesting a phishing attempt to redirect users to a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. The presence of embedded URLs and the overall structure point towards a social engineering tactic to trick users into visiting a compromised domain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/strik?utm_term=wd+my+cloud+change+user+password PDF link annotation
    • https://bovoladimuva.weebly.com/uploads/1/3/0/9/130970023/wixetetoboruvupaxu.pdfIn PDF document text
    • http://tanubujurutemut.scienceontheweb.net/jalataku.pdfIn PDF document text
    • https://cdn.sqhk.co/fofateze/GEgdShj/5450126275.pdfIn PDF document text
    • https://cdn.sqhk.co/subilikiwi/jjyp8ij/nebuxiwotewavev.pdfIn PDF document text
    • https://sogatetemurus.weebly.com/uploads/1/3/4/3/134379625/210116.pdfIn PDF document text
    • https://memezuwiz.weebly.com/uploads/1/3/4/7/134702577/d3fa24ceb4f2d9.pdfIn PDF document text
    • http://jepewadagamer.scienceontheweb.net/fokunebalitupokogagod.pdfIn PDF document text
    • https://sozuleku.weebly.com/uploads/1/3/5/9/135962343/xozumifomudoruza.pdfIn PDF document text
    • http://gelupulofevabek.medianewsonline.com/45326005915.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/gadumagabusodel/32388135089.pdfIn PDF document text
    • https://s3.amazonaws.com/ladojenefe/bing_wallpaper_app_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/bisute/webozizugujamosuwoja.pdfIn PDF document text
    • https://s3.amazonaws.com/kovezux/war_of_the_worlds_season_two_release_date.pdfIn PDF document text
    • https://s3.amazonaws.com/jufowokedunod/wobumoraxisefekovofu.pdfIn PDF document text
    • https://s3.amazonaws.com/suzixegazunow/rabobilasojemibodudasori.pdfIn PDF document text
    • http://mojenuj.atwebpages.com/guia_do_estudante_atualidades_2020_download.pdfIn PDF document text
    • https://s3.amazonaws.com/nosepevozux/canoscan_4400f_software_free.pdfIn PDF document text
    • https://s3.amazonaws.com/nefunupu/de_jogos_para_pc_pelo_utorrent.pdfIn PDF document text
    • https://s3.amazonaws.com/limepusotanal/rupodaparepabovat.pdfIn PDF document text
    • https://s3.amazonaws.com/genukopapovixo/watimabexekajipiliwutojok.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_off0000fc37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC37 5696 bytes
SHA-256: 1b42c25e80f69db9988487783cdb65dc6aa766aafa02a205f63d635c372e933a
font_01_sfnt_off00010f86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F86 12252 bytes
SHA-256: c516e2d60641358d8bbba9fed8763e4c6c141ddfb24771b1135ab3cafb042620

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