Malicious PDF — malware analysis report

Static analysis result for SHA-256 19eee19668f7c469…

MALICIOUS

PDF

53.7 KB Created: 2020-08-20 04:32:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f3970635c0cf7e2a7a8dc034ffa1401a SHA-1: 6c4a746a562bfd1933a810a84eccacb0c8ad31b7 SHA-256: 19eee19668f7c46981a3d5d8f619aa931a1b70faf78bbbc070bbbbdea6fe8313
140 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the redirector. The presence of a link farm and a callback lure heuristic suggests a phishing or scam attempt designed to trick the user into clicking malicious links or initiating a fraudulent callback. No scripts were extracted from this sample.

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.
  • 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
  • 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=android+nougat+32+bit
    • http://pufofuf.eversafecarnival.com/uploads/1/3/1/8/131856887/xedobani.pdf
    • http://davukad.boyertownareamulti-service.org/uploads/1/3/0/9/130969317/02a389.pdf
    • http://files.ronnieroseband.com/uploads/1/3/0/8/130813797/a7f99.pdf
    • http://files.paraglidinginjapan.com/uploads/1/3/1/4/131407164/rexowegupuwupudur.pdf
    • http://files.christierecords.in/uploads/1/3/1/3/131398022/tefabiko.pdf
    • https://cdn.shopify.com/s/files/1/0436/4071/7472/files/lamibotexareturiv.pdf
    • https://cdn.shopify.com/s/files/1/0436/5733/0853/files/duwamiforebitezigalodado.pdf
    • https://cdn.shopify.com/s/files/1/0430/6891/5863/files/tokibuwivupuxefesi.pdf
    • https://cdn.shopify.com/s/files/1/0433/3872/7589/files/46970730518.pdf
    • https://cdn.shopify.com/s/files/1/0438/2051/5488/files/milan_cathedral_architecture.pdf
    • https://cdn.shopify.com/s/files/1/0436/9108/1882/files/cup_of_jo_toddler_gift_guide.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/woburorofinuxup.pdf
    • https://cdn.shopify.com/s/files/1/0437/9010/6775/files/bruchrechnen_division_aufgaben.pdf
    • https://cdn.shopify.com/s/files/1/0438/9850/3336/files/36921246257.pdf
    • https://cdn.shopify.com/s/files/1/0437/1090/6518/files/catalogue_avon_novembre_2020.pdf
    • https://cdn.shopify.com/s/files/1/0430/4686/3005/files/dusalilezodulewofi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99289858455.pdf
    • https://cdn.shopify.com/s/files/1/0449/3259/5867/files/lakamajaferozinotepuvedu.pdf
    • https://cdn.shopify.com/s/files/1/0450/4210/6518/files/16105882875.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/
    • https://cdn.shopify.com/s/files/1/0436/4071/7472/files/lamibotexar

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009437.bin
f289d48e181a5015a68842e637f6342d23772791ad373700b99e6dd48419a699		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9437 5208 bytes
font_01_sfnt_off0000a5f1.bin
7f170367aac8714ca338fc1fa8175d205a507ec503bd85bbe3bc35aa555ad8ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA5F1 10472 bytes

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