Malicious PDF — malware analysis report

Static analysis result for SHA-256 960cefc11ba8217b…

MALICIOUS

PDF

52.7 KB Created: 2020-07-29 00:46:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f254e57cfa644c1da205c9f3dedcbe01 SHA-1: 282acedfce9bc2b2234595f2a8d841992d517034 SHA-256: 960cefc11ba8217bb2100938db65d59671999dbdf459f510342491c91304189a
138 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, suggests a lure related to 'construction estimate template excel'. The presence of a PDF link farm further indicates malicious intent, likely to distribute further payloads or phish for credentials. No scripts were extracted from this sample.

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
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=construction+estimate+template+excel
    • http://files.boozebutler247.co.uk/uploads/1/3/1/6/131606179/3ad40d40a9.pdf
    • http://files.brooksidepathfinder.com/uploads/1/3/0/9/130969146/sazuxa.pdf
    • http://files.eakarts.com/uploads/1/3/1/8/131871674/51908246e01e.pdf
    • http://files.waveloopart.com/uploads/1/3/2/7/132740343/883d0.pdf
    • http://files.youshouldvisitjapan.com/uploads/1/3/0/9/130969595/7307206.pdf
    • https://cdn.shopify.com/s/files/1/0429/6497/5765/files/nojubotevureleveg.pdf
    • https://cdn.shopify.com/s/files/1/0433/5622/5688/files/85729348754.pdf
    • https://cdn.shopify.com/s/files/1/0433/9066/4860/files/vurijolavomon.pdf
    • https://cdn.shopify.com/s/files/1/0437/6795/5610/files/85784229644.pdf
    • https://cdn.shopify.com/s/files/1/0430/4207/8877/files/21440936943.pdf
    • https://cdn.shopify.com/s/files/1/0429/9004/3285/files/firidekezenep.pdf
    • https://cdn.shopify.com/s/files/1/0437/6884/0341/files/52840970566.pdf
    • https://cdn.shopify.com/s/files/1/0430/3123/2674/files/37364280717.pdf
    • https://cdn.shopify.com/s/files/1/0430/0872/1045/files/fonanebedirubonuxot.pdf
    • https://cdn.shopify.com/s/files/1/0438/3784/9762/files/72669846675.pdf
    • https://cdn.shopify.com/s/files/1/0437/2201/4885/files/wutoxilezutadizovipa.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_off000091fc.bin
c3593124698c3dddc7f75dad87f1700f3de78afd93f2b26ada6ba8f6dd51d87a
pdf-font-stream PDF embedded font (sfnt) at offset 0x91FC 5052 bytes
font_01_sfnt_off0000a311.bin
38b85838f538e9f28687a852ec2a93cb2c00d20edcfc03b80a6394db09a562e1
pdf-font-stream PDF embedded font (sfnt) at offset 0xA311 10068 bytes