Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa6faa36fa18d793…

MALICIOUS

PDF

45.6 KB Created: 2020-08-03 23:13:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 61e49bdea5299a23664eda99c545f62c SHA-1: 39435f71c185e84b9a28ebef75346d92e0057dd9 SHA-256: fa6faa36fa18d7931f3d891b417d01327173d396ef8ae853753778649d2acdd5
120 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector at 'https://ttraff.com/pify?keyword=pdf+to+word+nitro+online+free'. This redirector is likely used to funnel victims to malicious sites. The document body, though heavily obfuscated, contains references to 'pdf to word nitro online free', reinforcing the lure. The presence of a link farm suggests a broad phishing or scam campaign.

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=pdf+to+word+nitro+online+free
    • http://files.standrewbythelake.com/uploads/1/3/1/4/131438784/tudomu-jopaxubusadukom-nafitodazaduv.pdf
    • http://files.salpiconontario.com/uploads/1/3/2/7/132740670/6866887.pdf
    • http://files.bagribybagri.com/uploads/1/3/1/8/131856877/8483809.pdf
    • http://files.bwitched.com.au/uploads/1/3/2/7/132711999/ropezenasapive.pdf
    • https://cdn.shopify.com/s/files/1/0437/7778/6018/files/41695896265.pdf
    • https://cdn.shopify.com/s/files/1/0430/8277/6725/files/megebuberujamuwalikur.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30347825404.pdf
    • https://cdn.shopify.com/s/files/1/0431/0463/2992/files/2388864482.pdf
    • https://cdn.shopify.com/s/files/1/0437/8751/8104/files/rujefosopitonosozutova.pdf
    • https://cdn.shopify.com/s/files/1/0429/1136/7331/files/harman_kardon_soundsticks_ii.pdf
    • https://cdn.shopify.com/s/files/1/0431/8940/3810/files/rejerujonijosu.pdf
    • https://cdn.shopify.com/s/files/1/0432/9691/5621/files/61349238892.pdf
    • https://cdn.shopify.com/s/files/1/0440/6309/6984/files/kokunujuzetogaj.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_off00007675.bin
3038d1a839afafb19d972d0e854f6e10b18f4e446d3587c861711e3005b70fea
pdf-font-stream PDF embedded font (sfnt) at offset 0x7675 4604 bytes
font_01_sfnt_off0000863f.bin
f20d7b7de1ae3cb5fcc6c3aa080d687d79f79edaec23bece857328b0c38737ef
pdf-font-stream PDF embedded font (sfnt) at offset 0x863F 10460 bytes