Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0a2da51c4912a0d…

MALICIOUS

PDF

48.1 KB Created: 2020-08-12 02:38:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9532aab5e6f6c78ecaa5a26c3301969d SHA-1: ecb521176d5968f8dda6412389ee59150ca39754 SHA-256: c0a2da51c4912a0d07500f239f6620040a76a00d462cf26089458712cbb37a65
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link and a link farm, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains a URL that is also flagged as a malicious redirector. The presence of a 'download button' heuristic further supports the lure-based attack pattern. The file likely aims to redirect the user to a malicious site for further exploitation or credential harvesting.

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.cc/pify?keyword=playhouse+instructions+pdf
    • http://sovav.elenash.com/uploads/1/3/0/7/130775732/veruxufewufole-mofapufuw-xevavovur-zupewesesot.pdf
    • http://files.12monthbeauty.com/uploads/1/3/0/8/130874128/6301925.pdf
    • http://files.therealisreal.com/uploads/1/3/1/4/131438583/bunepusisefakez.pdf
    • https://cdn.shopify.com/s/files/1/0428/1411/1903/files/bataz.pdf
    • https://cdn.shopify.com/s/files/1/0434/6806/2872/files/37209779973.pdf
    • https://cdn.shopify.com/s/files/1/0435/2134/3647/files/nekixugo.pdf
    • https://cdn.shopify.com/s/files/1/0429/9259/9193/files/8384795486.pdf
    • https://cdn.shopify.com/s/files/1/0440/0267/2798/files/zogekumisimojuvegaxapirel.pdf
    • https://cdn.shopify.com/s/files/1/0432/6513/0660/files/dudavuvawi.pdf
    • https://cdn.shopify.com/s/files/1/0431/1125/2132/files/zewigalemo.pdf
    • https://cdn.shopify.com/s/files/1/0430/3365/7498/files/logica_e_algebra_de_boole.pdf
    • https://cdn.shopify.com/s/files/1/0435/4641/1160/files/the_story_of_my_life_summary.pdf
    • https://cdn.shopify.com/s/files/1/0434/1104/6558/files/genevilonuzonebeluxaxi.pdf
    • https://cdn.shopify.com/s/files/1/0432/3721/2319/files/83160467040.pdf
    • https://cdn.shopify.com/s/files/1/0449/3754/3848/files/certificado_medico_legal_peru.pdf
    • https://cdn.shopify.com/s/files/1/0437/7369/0017/files/nireruwoke.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007f7e.bin
e9bdfe0b12b364811a7700ca949491c30bc9b0e60e2d0c49ade5f00b24695c52
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F7E 5348 bytes
font_01_sfnt_off000091a9.bin
3ebc699bee7d6f25b6cb141bff297ba45641e8725b593f91f05284761b10e665
pdf-font-stream PDF embedded font (sfnt) at offset 0x91A9 9836 bytes