Malicious PDF — malware analysis report

Static analysis result for SHA-256 f67453d51f6871ff…

MALICIOUS

PDF

48.4 KB Created: 2020-07-27 15:36:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e2a93a9d9de7670ba7d0a5c975e50a5 SHA-1: c00f26d63b4beefe10becfe02c5eaa2b20bc578f SHA-256: f67453d51f6871ff39f59e411d7d5d5485013b7dcd512ec5b6e585f3050d184f
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. Additionally, it exhibits a PDF link farm, with numerous links hosted on cdn.shopify.com, suggesting an attempt to distribute malicious content or engage in SEO manipulation. The document body, though heavily corrupted, contains fragments that hint at urgency lures. 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.ru/pify?keyword=greetings+from+nowhere+guided+reading+level
    • http://files.hotmilkbreastfeeding.com/uploads/1/3/1/4/131409526/a4b8035a24734.pdf
    • http://files.nataliekeymist.com/uploads/1/3/1/4/131437530/8250131.pdf
    • http://files.mysunnymead.com/uploads/1/3/0/8/130815228/3939189.pdf
    • http://files.youarenotaloneart.com/uploads/1/3/0/7/130740011/zorutinawazasiv.pdf
    • http://files.dbs-fabrication.co.uk/uploads/1/3/1/3/131380032/bonefoxito.pdf
    • http://files.mysunnymead.com/uploads/1/3/0/8/13081
    • https://cdn.shopify.com/s/files/1/0431/2609/6036/files/fijigu.pdf
    • https://cdn.shopify.com/s/files/1/0436/9340/8409/files/93514161293.pdf
    • https://cdn.shopify.com/s/files/1/0437/4714/7928/files/tuvofubejivip.pdf
    • https://cdn.shopify.com/s/files/1/0434/3093/6732/files/sutolinuduxagid.pdf
    • https://cdn.shopify.com/s/files/1/0432/7351/9269/files/635577497.pdf
    • https://cdn.shopify.com/s/files/1/0431/1770/7425/files/xeribikiviwubumu.pdf
    • https://cdn.shopify.com/s/files/1/0432/7738/5892/files/miwelajulalixowawivute.pdf
    • https://cdn.shopify.com/s/files/1/0428/3016/8230/files/33971896892.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gibowutobarifokegibig.pdf
    • https://cdn.shopify.com/s/files/1/0427/7318/4678/files/bifowojigajepix.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zimupumunilojoduwa.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/46824776831.pdf
    • https://cdn.shopify.com/s/files/1/0440/0496/6565/files/javudumibijujumar.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_off00007da1.bin
40abf10406fd8a670418ca5546b55849c4332a40c9c52b9d541e23b47c329218
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DA1 5388 bytes
font_01_sfnt_off00008fe1.bin
578c7b152e7c8df079e4d2d046774973b5e9a037c45cdda954321e9d89d99cdb
pdf-font-stream PDF embedded font (sfnt) at offset 0x8FE1 10432 bytes