Malicious PDF — malware analysis report

Static analysis result for SHA-256 df58b5745741eff9…

MALICIOUS

PDF

43.6 KB Created: 2020-08-21 15:15:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9bdfa0fff19cdd0c61f1d18f0219bcf9 SHA-1: 217c20a5d4e19d8ad1d777347e6d031420546e6b SHA-256: df58b5745741eff980b10d37e38160aac518a5bd37aefd90e6f0cefcede750b0
160 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for a 'Mickey mouse ears sewing template'. The presence of a 'SE_PASSWORD_ARCHIVE_LURE' heuristic suggests the PDF may be intended to trick users into providing credentials or downloading a password-protected archive, which is a common tactic for bypassing security gateways. The primary malicious URL is ttraff.com, which is used in conjunction with a keyword that appears to be a social engineering lure.

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=mickey+mouse+ears+sewing+template
    • http://files.advancedbenefitscorp.com/uploads/1/3/1/6/131606027/1669890.pdf
    • http://files.jade-french.com/uploads/1/3/0/7/130775465/gulonidexalig.pdf
    • http://files.missiongolfacademy.co.uk/uploads/1/3/2/6/132695418/fd78f5.pdf
    • https://cdn.shopify.com/s/files/1/0430/4742/0057/files/pipuxadubafiburasun.pdf
    • https://cdn.shopify.com/s/files/1/0430/8120/3861/files/2_dimensional_shapes_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0429/5317/9289/files/27290574697.pdf
    • https://cdn.shopify.com/s/files/1/0434/4132/4184/files/vector_tower_defense.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/63032467643.pdf
    • https://cdn.shopify.com/s/files/1/0430/8949/4177/files/litaju.pdf
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/5496531918.pdf
    • https://cdn.shopify.com/s/files/1/0439/2642/1672/files/lomatutabisimamatomobosi.pdf
    • https://cdn.shopify.com/s/files/1/0429/9112/4643/files/19217769490.pdf
    • https://cdn.shopify.com/s/files/1/0437/0602/4101/files/custom_npc_mod_1._14._4.pdf
    • https://cdn.shopify.com/s/files/1/0434/1488/0405/files/comment_fusionner_deux_fichier_sur_mac.pdf
    • https://cdn.shopify.com/s/files/1/0436/7273/1801/files/netbeans_java_desktop_application_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0434/4204/5090/files/nurapovajizo.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_off00006b2a.bin
3a1aa7a9a536b98692f07b1338ff4af54d988424d9455495990eb86b5334e2b5
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B2A 5516 bytes
font_01_sfnt_off00007df7.bin
e1160633042f0b2b9a7b29c66304ab927fe3fc346d6caa9ea2ba92fb799a2755
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DF7 10292 bytes