Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e954662081cdcdf…

MALICIOUS

PDF

72.3 KB Created: 2021-03-03 12:42:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: bb018be6905abafe1801ea32dca82fc2 SHA-1: 9d80d50f27bdff3aa5073603b2b792c28b1487c5 SHA-256: 3e954662081cdcdf884a5879ea3929bc729366767670eba968be008754c4bf90
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and a machine learning classifier, indicating a high likelihood of malicious intent. The embedded URL and numerous other URLs suggest a phishing or malware distribution campaign. Although no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a social engineering attack to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://midufefew.ru/award?keyword=tutoriales+para+tocar+guitarra+electrica PDF link annotation
    • http://opensalle.xyz/38512080503g8j1l.pdfIn PDF document text
    • http://jexekiraj.sportsontheweb.net/is_wes_a_buy.pdfIn PDF document text
    • http://jabofuzo.22web.org/67409238203.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413570/normal_5fef62c4a3406.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421639/normal_5fe6c65b96010.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485943/normal_6004c0dec788a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384144/normal_5ff852b0d9e22.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419193/normal_5fd9738b5e498.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417309/normal_5fed02b87af66.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480756/normal_603265a855b55.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465924/normal_5fcd994faa173.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454809/normal_5ffa34e95ca91.pdfIn PDF document text
    • http://axecheat8.xyz/how_long_to_heat_hot_dog_buns_in_oven4grvh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478133/normal_5fdbe59480d4d.pdfIn PDF document text
    • http://rajukilodagoje.mygamesonline.org/porazerumo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486563/normal_603167ac0f6da.pdfIn PDF document text
    • http://cashbackk.site/bubewogegolotefaguwosegpjun.pdfIn PDF document text
    • http://repochka.site/www._njmvc._gov_registration_renewal_onlines5l45.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469135/normal_5ffb743fc86e9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383792/normal_60395f1c3111d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000dc0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC0B 5048 bytes
SHA-256: 9cf5cced653cf8b1ebf3543138a654ef2df557fa1277543dc643f8e9dbb21b33
font_01_sfnt_off0000ed43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED43 11452 bytes
SHA-256: 888a872809cee7e2f89ad465ee151048bf755719ac88fb6840bb43db839f3d9b

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