Malicious PDF — malware analysis report

Static analysis result for SHA-256 825e60793daf1142…

MALICIOUS

PDF

75.1 KB Created: 2021-04-24 16:14:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 2fe321b263f57436afa47586a856a288 SHA-1: 6136d3fe32889a0c20d5313470d30a26d68455c8 SHA-256: 825e60793daf11422e164c9f06f323ea74e6fbe6b54fc1d5f76d2a192b303b87
126 Risk Score

Malware Insights

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

The PDF document contains numerous external URIs, many hosted on disposable domains, suggesting a link farm or phishing attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of embedded URLs, particularly the one related to 'ford e350 6.0 diesel oil type', points towards a lure to trick users into visiting a potentially malicious site for information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://leonvi.ru/strik?utm_term=ford+e350+6.0+diesel+oil+type PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4366369/normal_60010f5ca0cfb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485156/normal_606d9f8900f9d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387811/normal_603fa0ee1e78a.pdfIn PDF document text
    • http://bezivodediz.iblogger.org/arturia_audio_fuse_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/logubaxe/jhU4hb4/zediweligojusebawabemu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448332/normal_6027430d09da3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366662/normal_6048c81737a85.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383692/normal_6014ba29e3580.pdfIn PDF document text
    • https://cdn.sqhk.co/gudijupimeb/iard1Vo/tewud.pdfIn PDF document text
    • https://cdn.sqhk.co/ritasuxa/o0Zheif/desmosomes_vs_tight_junctions.pdfIn PDF document text
    • https://cdn.sqhk.co/dewufidabo/Gjahayx/52584769324.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3da1044-5830-4ff7-a48f-70f32c3b89ab/68778420086.pdfIn PDF document text
    • http://zekafoweratum.epizy.com/96263596555.pdfIn PDF document text
    • https://s3.amazonaws.com/wuniku/how_to_make_a_corner_bench_out_of_pallets.pdfIn PDF document text
    • https://s3.amazonaws.com/vigevot/55010697900.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9d618c2-c45a-4761-a169-6feb4f9f4cf2/nora_roberts_new_book.pdfIn PDF document text
    • http://vadekun.epizy.com/47650356741.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fdb34286-a55b-4272-95d9-de1c08e17c2c/how_do_you_set_a_citizen_eco_drive_wr100_watch.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27c729f0-686a-4f57-8d01-7717bd38b471/how_to_mix_nason_ful-base_paint.pdfIn PDF document text
    • https://s3.amazonaws.com/rujimidujek/levixo.pdfIn PDF document text
    • https://s3.amazonaws.com/zabevog/80366493439.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4114f94f-a7f7-4338-bd75-1d816675a0c1/how_to_run_a_bosch_800_series_dishwasher.pdfIn PDF document text
    • https://s3.amazonaws.com/buganabowumujef/total_video_converter_3._71_exe.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_off0000ea02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA02 5416 bytes
SHA-256: 430632a2c7cada503c64c2e2d8c1ae0aaad928be6b31eab3d16953615d5528a9
font_01_sfnt_off0000fc90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC90 10072 bytes
SHA-256: 6f00cc7acb505e77466c4cc072e9da2258dc0e56628fd93dd507c3c85d7e670c

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