Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3cdd84dbdee8323…

MALICIOUS

PDF

43.4 KB Created: 2020-08-14 20:01:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5bcd5ae3b8da04d3b39bbccf1d98c0ab SHA-1: 4c41210f86413cfe7ec969956643679fd9ee6597 SHA-256: c3cdd84dbdee832356f2b8014f4128eb0625b4557511577bdb032bd38c6b996d
136 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious intent, including a critical finding of a link to a known malicious redirector. The document body also contains a call-to-action phrase and urgency language, further supporting a phishing or scam attempt. The primary malicious IOC is the redirector URL, which likely leads to further stages of the attack.

Heuristics 5

  • 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
  • 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.ru/pify?keyword=board+directors+report+template
    • http://fadeweb.learningandwriting.com/uploads/1/3/2/7/132740435/pixozitugagugerupof.pdf
    • http://xexoxenut.michaeltuttle.net/uploads/1/3/1/0/131069839/weturif_wodekul_xemenejena_jabapefute.pdf
    • https://cdn.shopify.com/s/files/1/0433/4934/4421/files/center_parcs_bostalsee_lageplan.pdf
    • https://cdn.shopify.com/s/files/1/0428/0621/4819/files/carlos_castaneda_don_juan.pdf
    • https://cdn.shopify.com/s/files/1/0431/5598/0439/files/gadeku.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38664456414.pdf
    • https://cdn.shopify.com/s/files/1/0431/7482/2043/files/waranedarusibojojo.pdf
    • https://cdn.shopify.com/s/files/1/0428/0093/9164/files/c_assignment_operator_overload.pdf
    • https://cdn.shopify.com/s/files/1/0430/5561/2058/files/script_executor_for_roblox.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61047377128.pdf
    • https://cdn.shopify.com/s/files/1/0433/8001/5262/files/wowebusivugifowapipu.pdf
    • https://cdn.shopify.com/s/files/1/0430/3175/6957/files/69764728418.pdf
    • https://cdn.shopify.com/s/files/1/0446/0707/8564/files/cardiopatia_congenita.pdf
    • https://cdn.shopify.com/s/files/1/0431/8615/9767/files/dizil.pdf
    • https://cdn.shopify.com/s/files/1/0437/0936/6427/files/60101993598.pdf
    • https://cdn.shopify.com/s/files/1/0437/7686/8510/files/98092104709.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_off0000642d.bin
62cd5f07e7e434e80ee687f21e185752602b8a6a755870112e56a3f0c037a43a
pdf-font-stream PDF embedded font (sfnt) at offset 0x642D 5268 bytes
font_01_sfnt_off000075f8.bin
786e8793cf8c989971edb5fee1da223e22bb79d99a83c1696980201169b255fc
pdf-font-stream PDF embedded font (sfnt) at offset 0x75F8 13508 bytes