Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7a4b51ae0993cd7…

MALICIOUS

PDF

50.1 KB Created: 2020-09-17 10:37:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0b16a4160bc225acee41bc94e481790f SHA-1: 62867b8d3b7a47dbd154a65e0a4c3c4c0f2e5c87 SHA-256: d7a4b51ae0993cd734afbbe38cd8684693247877708e6ad44494796edf617f9f
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.me'. The document body also contains this URL and a large number of embedded links, many hosted on cdn.shopify.com, suggesting a link farm or SEO poisoning tactic. The presence of a 'SE_DOWNLOAD_BUTTON' heuristic further supports the lure of a download, which is likely malicious given the redirector. No scripts were extracted from this sample.

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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://ttraff.me/wix?keyword=sites+google+unblocked+games
    • http://files.egaugesplus.com/uploads/1/3/1/6/131637570/siludar-popazed-nugivaram-vuzoxeruzoxave.pdf
    • http://lewebaj.ayecanchange.info/uploads/1/3/1/4/131453832/vularuminupupotip.pdf
    • http://files.mattblackhall.com/uploads/1/3/0/9/130969820/74696963fbb50c.pdf
    • http://files.lavenderrosefarms.com/uploads/1/3/0/7/130775870/pepodexiwa.pdf
    • http://vuxokeju.eastpauldingyouthfootball.com/uploads/1/3/0/8/130874575/6e8733e206103.pdf
    • https://cdn.shopify.com/s/files/1/0436/5955/9065/files/jupetobibovazukotuvisun.pdf
    • https://cdn.shopify.com/s/files/1/0429/1415/2607/files/rezedevivu.pdf
    • https://cdn.shopify.com/s/files/1/0430/2703/8369/files/17151211770.pdf
    • https://cdn.shopify.com/s/files/1/0431/3628/6877/files/reliance_capital_annual_report_2013-_14.pdf
    • https://6500b5e4-3059-4a71-bfea-e25e3cd401a0.filesusr.com/ugd/aec2ea_58ea31030c944193bf79a6fcf4fd8bad.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0434/5102/3510/files/bhajan_song_marathi.pdf
    • https://cdn.shopify.com/s/files/1/0438/1986/0125/files/azhage_azhage_tamil_audio_song.pdf
    • https://cdn.shopify.com/s/files/1/0434/4633/7693/files/characteristic_of_matter_worksheet_for_grade_3.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ff9.bin
705377623a4c4344e02470fedf876d1ed6f0c7c0eac322cafb15afc9430d14bf
pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF9 6440 bytes
font_01_sfnt_off00006fed.bin
aef5f14ce2e73c8efa455d2a201456ba124200fc7b99f60b419b8401132f58f9
pdf-font-stream PDF embedded font (sfnt) at offset 0x6FED 5468 bytes
font_02_sfnt_off0000827c.bin
34bb3ddd50dfddfd9c5008389df5fdc2892a3dc6e08d70a1e1370c58e386ddfe
pdf-font-stream PDF embedded font (sfnt) at offset 0x827C 10496 bytes
font_03_sfnt_off0000a69b.bin
bc1c1644e30597ae0beaac312b9749a82b64e26c109397326cdc67fdbaf2fe17
pdf-font-stream PDF embedded font (sfnt) at offset 0xA69B 16036 bytes