Malicious PDF — malware analysis report

Static analysis result for SHA-256 07133b97d2e77d99…

MALICIOUS

PDF

72.8 KB Created: 2021-02-19 21:47:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 3b4b544ffadb8af2d66fded7c51d13f4 SHA-1: 489a91aa7cd7157ffbe26fbcc6814a85750423b5 SHA-256: 07133b97d2e77d9914880a2fd4026e575523e4a97b5cbef0fccb1bd329e16745
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains heuristics indicating it is a malicious phishing document designed to impersonate a cloud service and encourage downloads. It includes a link farm with numerous external PDF links, one of which is a keyword-based URL likely intended to deliver a payload. The ML classifier and ClamAV detection strongly support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • Cloud document impersonation lure medium SE_CLOUD_DOC_LURE
    Document impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wix?keyword=madden+mobile+hack+apk PDF link annotation
    • https://cdn.sqhk.co/mekibekowufe/bjdpijm/bangla_to_english_translator_software_for_pc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500183/normal_60038824a77b4.pdfIn PDF document text
    • https://malojedatev.weebly.com/uploads/1/3/0/8/130813840/laxovom.pdfIn PDF document text
    • http://jumuzonogajal.iblogger.org/manga_rock_apkpure.pdfIn PDF document text
    • http://fuxukibegub.iblogger.org/44430742010.pdfIn PDF document text
    • https://feveronibamuja.weebly.com/uploads/1/3/5/3/135300243/1521394.pdfIn PDF document text
    • https://vapovudinawixe.weebly.com/uploads/1/3/1/4/131437980/dotor.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/borokegujuzero/22678981373.pdfIn PDF document text
    • http://xapupatefi.rf.gd/wasafogexon.pdfIn PDF document text
    • https://s3.amazonaws.com/divelatoxa/hp_laserjet_p2055dn_series_driver_is_unavailable_windows_10.pdfIn PDF document text
    • https://s3.amazonaws.com/nolarifaforuxop/probability_worksheets_grade_8.pdfIn PDF document text
    • http://suzogoga.epizy.com/minuet_in_g_petzold_sheet_music.pdfIn PDF document text
    • http://vufobaratoja.epizy.com/19020661600.pdfIn PDF document text
    • https://s3.amazonaws.com/lodazojamuva/rowefoke.pdfIn PDF document text
    • https://s3.amazonaws.com/bizamesuwepe/wisconsin_evangelical_lutheran_synod_call_report.pdfIn PDF document text
    • https://s3.amazonaws.com/meludav/45114066514.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_off0000d77e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD77E 5248 bytes
SHA-256: f0b9b9eda09384ee6b2118be8ac1b18a092c29851f19538ab9c5cf417ec92101
font_01_sfnt_off0000e935.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE935 14116 bytes
SHA-256: 0777118f31368a8a28837a824e200b384efaed82f24b7e7e946a6bfc21241549

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