Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc802f06e1f51692…

MALICIOUS

PDF

84.9 KB Created: 2021-04-08 06:45:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 4a099e0b44c3c4d015c461978b96de09 SHA-1: d7aa1099c1bb6e2983d5f2d4a38d6d9b7dbda9bd SHA-256: dc802f06e1f516927537cbb1694f797ad6c074b45124b3d40953bc0ff46734c0
96 Risk Score

Malware Insights

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

The PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, 'dugedepap.ru', which is likely used to host a malicious payload or phishing page. No scripts were extracted, but the presence of external links and the ML/ClamAV detections strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://dugedepap.ru/123?utm_term=ind+vs+rsa+t20+pitch+report PDF link annotation
    • https://vumizopefi.weebly.com/uploads/1/3/5/3/135313358/rinumemeferub.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407331/normal_5ffa1fad3d937.pdfIn PDF document text
    • https://cdn.sqhk.co/vesagivara/o3pgd3O/harmless_virus_prank_notepad.pdfIn PDF document text
    • http://yatvoyya.fun/form_4_letter_word_from_brand8y72n.pdfIn PDF document text
    • http://momentikshop.space/honeywell_rth110b_not_workinglu5kx.pdfIn PDF document text
    • http://qwertyujg.xyz/weider_8630_weightsy452g.pdfIn PDF document text
    • https://fixasamajiwige.weebly.com/uploads/1/3/4/3/134318971/xifebuluvi-piluvifigivinal-bigudujetepuzub-finokekivijetoj.pdfIn PDF document text
    • https://zazigiwozaka.weebly.com/uploads/1/3/2/6/132681333/tekiroloxuzuze.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501380/normal_60087a115c66a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408343/normal_6058c545ebc5b.pdfIn PDF document text
    • http://mestikon.online/40593081947c8x99.pdfIn PDF document text
    • http://xabofawowu.22web.org/wumudunukibukibip.pdfIn PDF document text
    • http://wutulesarox.iblogger.org/investiture_controversy_worksheet.pdfIn PDF document text
    • https://cdn.sqhk.co/xadakede/kLuLghY/zametorigewubaveperu.pdfIn PDF document text
    • https://gilurumujeluzem.weebly.com/uploads/1/3/1/8/131857598/5526243.pdfIn PDF document text
    • http://douchehq.xyz/sacred_geometry_symbols_for_lovevd53v.pdfIn PDF document text
    • https://wirumexazejop.weebly.com/uploads/1/3/4/5/134599385/60dba952bca4e5.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/nupotukig/bulk_sms_apps_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/wulotugadag/10472839234.pdfIn PDF document text
    • http://pedovebewazafuv.epizy.com/negumibebirolomisajegur.pdfIn PDF document text
    • https://s3.amazonaws.com/pevarijidasalop/microsoft_excel_online_courses_with_certificate.pdfIn PDF document text
    • http://bevetobepo.rf.gd/chillicothe_weather_report.pdfIn PDF document text
    • https://s3.amazonaws.com/zijivevip/gepopisivewufal.pdfIn PDF document text
    • https://s3.amazonaws.com/faluzotixupi/honda_eu3000is_oil_filter.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ffa1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFA1 5188 bytes
SHA-256: 45633848ff74d0ac2e77556258c5d423856f639329378a81ebf708cefe2a888b
font_01_sfnt_off00011130.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11130 11376 bytes
SHA-256: d47de551de40be0f05336536fbac26ea2ec29a797886daa247de2b188520a0c6
font_02_sfnt_off000137eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x137EB 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3