Malicious PDF — malware analysis report

Static analysis result for SHA-256 8806e7bd69da62f4…

MALICIOUS

PDF

94.1 KB Created: 2021-01-04 00:28:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: f5450d1a00b52f336a89dfeefc7829fe SHA-1: a271faf99536010ca0ff4e01696b08b7539cceac SHA-256: 8806e7bd69da62f4072710fbfa97ddbae146c577cb595985aa0e7c6266344dea
164 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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://traffking.ru/aws?utm_term=english+teacher+resume+template+word PDF link annotation
    • https://gasomuvujutomeb.weebly.com/uploads/1/3/4/3/134356107/novujosigazipise.pdfIn PDF document text
    • https://vitepoler.weebly.com/uploads/1/3/4/5/134516533/ff2a52f739fc.pdfIn PDF document text
    • https://sipimivib.weebly.com/uploads/1/3/4/6/134657766/relubixurabesoza.pdfIn PDF document text
    • https://jadufebifov.weebly.com/uploads/1/3/4/6/134627690/17e0e0dd003f163.pdfIn PDF document text
    • https://pepajodik.weebly.com/uploads/1/3/1/4/131453945/2809863.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/didowugorokirug/idle_heroes_tier_list_zeals.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/052500f7-1f74-4f70-9bb3-6b0d21c4bd22/5445838777.pdfIn PDF document text
    • https://s3.amazonaws.com/vuzotisenixava/77673024445.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d22e86e-ab2a-482f-bbd1-c65c53ab8c9c/dark_set_ds2.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/lomodiwivuxejozunafu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b48d438-6725-4ce1-ae60-815a77a67270/mario_party_4_online.pdfIn PDF document text
    • https://s3.amazonaws.com/ninasivol/autumn_leaves_ed_sheeran_piano_sheet_music.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2ab2008-d6ee-4588-975a-9de5c8759e41/botuvobug.pdfIn PDF document text
    • https://s3.amazonaws.com/paxuvagal/5231754910.pdfIn PDF document text
    • https://s3.amazonaws.com/pokorevalaxex/8_ball_pool_free_new_version.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e015c8f7-2568-447f-97bd-8895472c0936/sanky_panky_torrent.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_off00012647.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12647 5420 bytes
SHA-256: 9dcc6a91da96518a67d06da52bd25cba633bc47a2ffc15c39197352574d386e9
font_01_sfnt_off00013891.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13891 10716 bytes
SHA-256: 0bcb3563477a2c52bf7b84b5996c4ca15275fcea9196ee6868faf59dafa6fa1c
font_02_sfnt_off00015d12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15D12 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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