Malicious PDF — malware analysis report

Static analysis result for SHA-256 eea17687905bd23d…

MALICIOUS

PDF

44.8 KB Created: 2020-09-12 02:42:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7aa935eb89bdb9bea2a2f879c935a42d SHA-1: af2fad2cd2939e0abd3f25ed075c9b84a31ea749 SHA-256: eea17687905bd23d8b03a7f772a9e220a422429b788108dcacc546de1475149c
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.club/wix?keyword=bangalore+city+route+map+free', which is flagged as a malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass external PDF link farm, further supporting the malicious intent of distributing links.

Heuristics 3

  • 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.
  • 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.club/wix?keyword=bangalore+city+route+map+free
    • http://files.stensgardinsurance.com/uploads/1/3/0/7/130738603/tedamuraj.pdf
    • http://files.myhogshedstudiopottery.com/uploads/1/3/1/3/131383541/88239271799.pdf
    • http://suwinukum.rivervalleyobedienceclub.com/uploads/1/3/2/7/132712615/4126b.pdf
    • https://static.usrfiles.com/ugd/24853a_d5e7b980f2ed423d9c55c50d79f07495.pdf
    • https://static.usrfiles.com/ugd/0047a4_6cdefec6abc740c38a36c057481fd562.pdf
    • https://static.usrfiles.com/ugd/1be480_ffe681ffe60d4c37b7c3af2c79c13481.pdf
    • https://cdn.shopify.com/s/files/1/0429/9636/7511/files/62103202614.pdf
    • https://cdn.shopify.com/s/files/1/0428/3557/4943/files/wejixiwatefozagidajuxe.pdf
    • https://cdn.shopify.com/s/files/1/0449/7873/3224/files/behavioral_finance_and_wealth_management.pdf
    • https://cdn.shopify.com/s/files/1/0459/6210/0896/files/debian_buster_firmware.pdf
    • https://cdn.shopify.com/s/files/1/0434/1297/9869/files/putenix.pdf
    • https://cdn.shopify.com/s/files/1/0452/7587/3442/files/zone_of_inhibition_definition.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000652b.bin
e7228ef2faaf79f511cbc97575b2d4adf5613b00e632a89b69cf27201844da96		 pdf-font-stream PDF embedded font (sfnt) at offset 0x652B 5192 bytes
font_01_sfnt_off000076c7.bin
6b8e9554e25db8990f11ccee63f6a2d6fcf490f5be9e828e47ca661a77272172		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76C7 9932 bytes
font_02_sfnt_off000098c9.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98C9 4324 bytes

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