Malicious PDF — malware analysis report

Static analysis result for SHA-256 b09cfa4318e359a1…

MALICIOUS

PDF

48.0 KB Created: 2020-08-10 16:44:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c6b036fd8263927d6affe6a6d5e72c1 SHA-1: 95c5aeabbe3451687ea55bc114d1315bc4467c8a SHA-256: b09cfa4318e359a14d2d2c82f6488300b1b31b857a146c8963b4f364cba5d90b
120 Risk Score

Malware Insights

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

The PDF contains a mass link farm, with one URL pointing to a known malicious redirector. The document body, though heavily corrupted, contains text related to 'emetic and antiemetic drugs pdf' and the URL itself, suggesting a lure to a malicious site. The presence of numerous links to Shopify domains, while some are confirmed benign, is characteristic of SEO link farms used to improve search engine ranking for malicious content. No scripts were extracted from this sample.

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.com/pify?keyword=emetic+and+antiemetic+drugs+pdf
    • http://files.asapbis.com/uploads/1/3/1/0/131070722/jafizijet_junadumagewe.pdf
    • http://files.greenlightyourpassionproject.com/uploads/1/3/0/9/130969960/govadomipidurod-zesadekev-kimav-kovumonaz.pdf
    • http://files.locomotionpettreats.com/uploads/1/3/2/8/132815359/favekujolafogebiviw.pdf
    • http://tepot.dns-for-me.org/uploads/1/3/1/4/131437987/lafivesawetor-wofodox-pexawajifujoxoj.pdf
    • http://nazufi.3rdavewine.com/uploads/1/3/2/7/132712615/b70355028.pdf
    • https://cdn.shopify.com/s/files/1/0431/4628/1122/files/i_stand_amazed_in_the_presence_chords.pdf
    • https://cdn.shopify.com/s/files/1/0429/4361/1036/files/modern_elementary_statistics_freund_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/8937/1044/files/98197641827.pdf
    • https://cdn.shopify.com/s/files/1/0433/2768/4760/files/watenorinopukijitatakumi.pdf
    • https://cdn.shopify.com/s/files/1/0430/6026/5117/files/55019093676.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/meragavafeduxilaxopuxaw.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/poxusulijupidokubeb.pdf
    • https://cdn.shopify.com/s/files/1/0433/9410/5509/files/77933296501.pdf
    • https://cdn.shopify.com/s/files/1/0440/0024/7958/files/galuxeb.pdf
    • https://cdn.shopify.com/s/files/1/0431/5322/7936/files/69294726970.pdf
    • https://cdn.shopify.com/s/files/1/0430/6019/9573/files/diamond_copy_and_paste.pdf
    • https://cdn.shopify.com/s/files/1/0431/2937/2821/files/rotojupudifezurifabofevaf.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_off00007de6.bin
fdc2d54aff56f20c85dea7b50cf142230f0b471bd91cde0c9d75da84e66ab660
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DE6 5400 bytes
font_01_sfnt_off00009029.bin
a0e14d27f4cce6fa572b12518b37b6fa5af6fdf707cda4bb6bcb6003926dcd1b
pdf-font-stream PDF embedded font (sfnt) at offset 0x9029 10260 bytes