Malicious PDF — malware analysis report

Static analysis result for SHA-256 403183da79535dc3…

MALICIOUS

PDF

46.4 KB Created: 2020-08-18 13:04:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e799f7409107953971113ca9cebc6459 SHA-1: d6a6466f3074b6ea9d4af3a2eb479a71e8d2839a SHA-256: 403183da79535dc3724d55f645c0610e9999ffc229bb6875d5e7d9444f94a62f
162 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=soundtrack+abyss+drama+korea'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with 'https://cdn.shopify.com/s/files/1/0429/5468/6630/files/dofus.pdf' being a prominent example. The presence of a 'SE_LOLBIN_RUN_COMMAND' heuristic suggests that the document may contain instructions or visible command text involving Windows execution tools, further indicating a malicious intent to execute commands or redirect the user to harmful sites.

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.
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • 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.cc/pify?keyword=soundtrack+abyss+drama+korea
    • http://files.highyellowcurlz.com/uploads/1/3/0/7/130776775/lifalasekefiba.pdf
    • https://cdn.shopify.com/s/files/1/0429/5468/6630/files/dofus.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vizinedidobirefeguj.pdf
    • https://cdn.shopify.com/s/files/1/0432/9275/4076/files/blackthorn_crossword_answer.pdf
    • https://cdn.shopify.com/s/files/1/0439/1826/2427/files/55566027180.pdf
    • https://cdn.shopify.com/s/files/1/0430/3205/1873/files/75731325913.pdf
    • https://cdn.shopify.com/s/files/1/0430/5872/5018/files/mogobojijagi.pdf
    • https://cdn.shopify.com/s/files/1/0431/6332/0469/files/widobinolobuta.pdf
    • https://cdn.shopify.com/s/files/1/0427/9592/5671/files/luvizamupul.pdf
    • https://cdn.shopify.com/s/files/1/0433/4062/8120/files/mofatogopubivote.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_off00005eac.bin
d41551cbb0eca8a8e76b807cbd89dbe8343cabe6e1b55254f6fcf015498e0fea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EAC 6676 bytes
font_01_sfnt_off000074b4.bin
0ff61291ed5e2ab67bb730ae86eaee128d526cdc970de384d1ce31a87a43e808		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74B4 5460 bytes
font_02_sfnt_off00008730.bin
70febd8bfa7f6521197330fda951ef6016f5d796a619fa71d26730b32f1519be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8730 10564 bytes

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