Malicious PDF — malware analysis report

Static analysis result for SHA-256 285613663e35cda8…

MALICIOUS

PDF

47.6 KB Created: 2020-08-19 07:25:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 071f7153e4a4d5ebb919d10c33da3e3c SHA-1: 395b55321a313c7bcab30b50a3eb2d6d7de5002d SHA-256: 285613663e35cda89ad61a8e8b56d6da6aa383fc10425bc2b51f974837273a87
150 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which points to `https://ttraff.cc/pify?keyword=strengths+of+transformational+leadership+styles`. This URL is likely used to redirect the user to a malicious site. The document also contains a large number of external PDF links, many of which point to potentially malicious domains, suggesting a link farm or redirection scheme. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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=strengths+of+transformational+leadership+styles
    • http://dadixo.pageslakes.com/uploads/1/3/0/9/130969723/tidokakuwabom_nuvatiwezex_tanebomil.pdf
    • http://files.killeenalphas.com/uploads/1/3/0/7/130775977/vozapi_bujawugipumu_zosiwinarupi.pdf
    • http://files.everydayverde.com/uploads/1/3/0/7/130775558/bonopika-perawefonix-ragifiniji.pdf
    • http://files.thebronxlgbtexpo.com/uploads/1/3/1/4/131437680/nefafekurofifi-nivoje-fopamede.pdf
    • https://cdn.shopify.com/s/files/1/0435/4228/2399/files/40360331684.pdf
    • https://cdn.shopify.com/s/files/1/0447/8690/9341/files/resident_evil_4_apk_obb_highly_compressed.pdf
    • https://cdn.shopify.com/s/files/1/0438/3349/1606/files/wiwako.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5842/files/liwukuturomadozo.pdf
    • https://cdn.shopify.com/s/files/1/0434/5951/0425/files/lezezakajotulujasapi.pdf
    • https://cdn.shopify.com/s/files/1/0440/7784/2584/files/48851899804.pdf
    • https://cdn.shopify.com/s/files/1/0432/2436/7266/files/80632812610.pdf
    • https://cdn.shopify.com/s/files/1/0454/8227/9062/files/bhavnagar_video_song.pdf
    • https://cdn.shopify.com/s/files/1/0431/6482/7805/files/6482000130.pdf
    • https://cdn.shopify.com/s/files/1/0431/3346/8839/files/46553020701.pdf
    • https://cdn.shopify.com/s/files/1/0435/1547/8176/files/52811826525.pdf
    • https://cdn.shopify.com/s/files/1/0450/1327/0692/files/votabodewajimesadoraru.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e16.bin
91ec957210ea3c508932285c7ffabcf1ffbda35b9d82dfea75211e58ff7e3e3b
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E16 5448 bytes
font_01_sfnt_off0000806e.bin
b59fd63368b73fd4d2e49f610e4268e40ba1038bf9d8550556f3715ac96892ea
pdf-font-stream PDF embedded font (sfnt) at offset 0x806E 10156 bytes
font_02_sfnt_off0000a327.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0xA327 4324 bytes