Malicious PDF — malware analysis report

Static analysis result for SHA-256 de9ee5ebcdb6ede1…

MALICIOUS

PDF

51.3 KB Created: 2020-10-12 15:50:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2ac39217a0554b392d28118c663648f9 SHA-1: 479ff8145070f8bd43f4dc850dbfe98c0eee54e0 SHA-256: de9ee5ebcdb6ede13461d959071e2084bad44f46795b2f23efee995436f9369f
150 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL, suggesting an attempt to lead the user to a potentially harmful site. The document body, though malformed, contains text related to 'online reservation form pdf' and includes the malicious URL, reinforcing the lure. The presence of numerous external PDF links indicates a link farm, likely for SEO manipulation or to host further malicious content.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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://ggtraff.ru/strik?keyword=online+reservation+form+pdf
    • http://files.bible-engagement.org/uploads/1/3/1/3/131398357/7c95e8fd71bc75.pdf
    • http://zimefir.mission520.com/uploads/1/3/0/7/130775189/6464286.pdf
    • http://files.vertbotanicals.com/uploads/1/3/1/6/131636947/44d5c687ac85.pdf
    • http://files.ccifcyprus.com/uploads/1/3/0/7/130776791/910600.pdf
    • https://site-1038477.mozfiles.com/files/1038477/56399495264.pdf
    • https://site-1037878.mozfiles.com/files/1037878/5775921885.pdf
    • https://cdn.shopify.com/s/files/1/0429/3269/9302/files/kingmaker_players_guide.pdf
    • https://cdn.shopify.com/s/files/1/0430/8864/2197/files/aio_remote_neo_apk.pdf
    • https://cdn.shopify.com/s/files/1/0434/5957/5958/files/24794755885.pdf
    • https://uploads.strikinglycdn.com/files/012d98c6-ba84-4169-99ae-a1b518080d63/mibelumokifakitimesezu.pdf
    • https://uploads.strikinglycdn.com/files/a4e7b78c-151c-4cd8-9f7e-31228fe570be/20896897690.pdf
    • https://uploads.strikinglycdn.com/files/17774a77-1c13-4cd0-b478-caab9f810acc/jamisirogunabesoxagadeda.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_off00008ac9.bin
9a7a6e64c63dc0313d5c3ac8c0223de093cae5126ef2be1ab510f76bd9d0df49
pdf-font-stream PDF embedded font (sfnt) at offset 0x8AC9 5272 bytes
font_01_sfnt_off00009ca3.bin
cf1754459cc0d914c7eb6a97c507edaca8493a676fa23f327b2e866d7abd7b4e
pdf-font-stream PDF embedded font (sfnt) at offset 0x9CA3 10404 bytes