Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6e94c0057235f7a…

MALICIOUS

PDF

35.6 KB Created: 2020-08-19 18:01:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 960d8ad3eae9d9949dc92f7382085bae SHA-1: f22a4ac7636c891adf784526f7e869327785cf16 SHA-256: b6e94c0057235f7ae3d1033ccad3b2c39d2122541d10a92a0fd7171e4ba123bc
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=benji+bananas+adventure+mod+apk'. The document body, though heavily obfuscated, contains text related to 'benji bananas adventure mod apk', suggesting a lure for potentially pirated software. The presence of numerous links, including the malicious redirector, indicates an attempt to drive traffic to malicious sites.

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.cc/pify?keyword=benji+bananas+adventure+mod+apk
    • http://files.fatimazaidi.com/uploads/1/3/0/7/130739962/4808525.pdf
    • http://gasixevas.ariosostudio.com/uploads/1/3/1/4/131453134/5c81eac28e1a7c.pdf
    • http://files.tilcc.com/uploads/1/3/0/7/130738620/revexarebowiluzexo.pdf
    • https://cdn.shopify.com/s/files/1/0431/3723/7146/files/47627929673.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sobobubujuwin.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/42257023754.pdf
    • https://cdn.shopify.com/s/files/1/0429/4203/8172/files/mavabeto.pdf
    • https://cdn.shopify.com/s/files/1/0437/5343/9383/files/toluredanoli.pdf
    • https://cdn.shopify.com/s/files/1/0431/9235/2928/files/kevabeduparuzegisavef.pdf
    • https://cdn.shopify.com/s/files/1/0437/1863/9765/files/17763375399.pdf
    • https://cdn.shopify.com/s/files/1/0427/5752/1574/files/fewokaxokupe.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xomuburisuxenogiduta.pdf
    • https://cdn.shopify.com/s/files/1/0432/5313/7570/files/life_cycle_of_hymenolepis_nana.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_off00004c79.bin
146dcbd4b76af68f6661256bb48ba0cff6e05036312d15e38631d70cb0f1cf10		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C79 5464 bytes
font_01_sfnt_off00005ef9.bin
1a83db3c4b13a9847a2d248f60af1b87183550923405b1e02a766c35cbfe7347		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EF9 10364 bytes

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