Malicious PDF — malware analysis report

Static analysis result for SHA-256 93f76a4d0d9185bf…

MALICIOUS

PDF

49.0 KB Created: 2020-08-20 06:32:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 599460df9715a78dc2b3e7fb59a3129c SHA-1: 138a6590f3024d7353ce68c50a53b3ff2f9c4062 SHA-256: 93f76a4d0d9185bf86d2b65386cabcffa92534b30e80b4d4d82035b5fd6b4342
128 Risk Score

Malware Insights

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

The PDF contains a link that redirects to malicious infrastructure, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and embedded URLs suggest a lure to download software, specifically mentioning 'Camera raw 7.3 photoshop cs6'. The PDF_SEO_LINK_FARM heuristic indicates a large number of external PDF links, likely for SEO manipulation or to host further malicious content. The SE_DOWNLOAD_BUTTON heuristic further supports the lure-based attack pattern.

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=camera+raw+7.+3+photoshop+cs6
    • http://files.battleatthehive.com/uploads/1/3/2/8/132814024/ludajitufoxim_pikoxawofuful.pdf
    • http://files.stillkelly.com/uploads/1/3/0/8/130874524/rejowafewozob.pdf
    • http://metigikiw.adventuresatyourdoorstep.com/uploads/1/3/0/7/130740572/9585232.pdf
    • http://files.bloodsugarbikemagic.com/uploads/1/3/2/8/132814958/6480127.pdf
    • http://vukaze.pickmuseumhmongexhibit.org/uploads/1/3/1/6/131607188/fukemazote.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kazapuv.pdf
    • https://cdn.shopify.com/s/files/1/0436/1604/3168/files/ecommerce_website_templates_free_github.pdf
    • https://cdn.shopify.com/s/files/1/0438/2385/7824/files/10074043002.pdf
    • https://cdn.shopify.com/s/files/1/0431/9870/9917/files/www_amazon_redeemgift.pdf
    • https://cdn.shopify.com/s/files/1/0430/6288/6554/files/8447482636.pdf
    • https://cdn.shopify.com/s/files/1/0440/8098/8325/files/sort_dataframe_r.pdf
    • https://cdn.shopify.com/s/files/1/0428/2492/5347/files/54617174250.pdf
    • https://cdn.shopify.com/s/files/1/0429/6271/4773/files/bodataxijidurozamorap.pdf
    • https://cdn.shopify.com/s/files/1/0432/5471/0427/files/36053447153.pdf
    • https://cdn.shopify.com/s/files/1/0430/6803/1143/files/xekuriv.pdf
    • https://cdn.shopify.com/s/files/1/0430/8631/5684/files/19246375773.pdf
    • https://cdn.shopify.com/s/files/1/0433/3414/0056/files/27359676740.pdf
    • https://cdn.shopify.com/s/files/1/0434/2130/2935/files/63246288253.pdf
    • https://cdn.shopify.com/s/files/1/0439/0515/5240/files/gowupel.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_off00007f93.bin
ac3aa02a67216a09e1939529ab319c4b4655cb703759438995825a9fee6b1ec6
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F93 5568 bytes
font_01_sfnt_off00009278.bin
051b78bee179999da9b22808b443395c797eeed705cd83e8710d15b32c40c97c
pdf-font-stream PDF embedded font (sfnt) at offset 0x9278 10620 bytes