Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d95a29fe5a6bddc…

MALICIOUS

PDF

82.0 KB Created: 2020-07-27 22:32:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59d97f60e240c179b9185845049bf050 SHA-1: 5e68310664566bf025e0c69ac05bbeed7836d607 SHA-256: 4d95a29fe5a6bddc9f732b9d990e5e43cd880df4a5929b074b1a68b456101f19
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 PDF files hosted on Shopify. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final malicious destination. The document body, though heavily obfuscated, suggests a lure related to a "Delhi metro map". No scripts were extracted from this sample.

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.com/pify?keyword=delhi+metro+map+hd+pdf+2019
    • http://files.wendycomeau.com/uploads/1/3/0/7/130776452/5048604.pdf
    • http://files.panhandletoyschnauzers.com/uploads/1/3/2/7/132710654/9513281.pdf
    • http://files.f5innovationsymposium.com/uploads/1/3/1/8/131871535/veruruvu.pdf
    • https://cdn.shopify.com/s/files/1/0430/1353/7951/files/rekazedapude.pdf
    • https://cdn.shopify.com/s/files/1/0440/1600/9374/files/webadawinipiw.pdf
    • https://cdn.shopify.com/s/files/1/0432/9252/4702/files/xutafuwagen.pdf
    • https://cdn.shopify.com/s/files/1/0432/8469/3160/files/deziguvuboxumurunijo.pdf
    • https://cdn.shopify.com/s/files/1/0430/8100/7255/files/79852729625.pdf
    • https://cdn.shopify.com/s/files/1/0429/1048/2588/files/31058238325.pdf
    • https://cdn.shopify.com/s/files/1/0431/3926/8774/files/folanojaxotiv.pdf
    • https://cdn.shopify.com/s/files/1/0429/2627/6775/files/gepesadedumo.pdf
    • https://cdn.shopify.com/s/files/1/0433/5340/7646/files/25696459020.pdf
    • https://cdn.shopify.com/s/files/1/0434/8159/6066/files/rolan.pdf
    • https://cdn.shopify.com/s/files/1/0436/6086/9785/files/vemodixunaso.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/1/043

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_007_off00010711.bin
8688d841b62397b4e16db45b8851136dc8876c9e0b7bb1e5f83469d1b160d34d		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x10711 17612 bytes
font_00_sfnt_off0000c370.bin
6f25910923d88c8c32f00d5b143b8d2742c3d06bef46c847c3b64d2be65ca8fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC370 5264 bytes
font_01_sfnt_off0000d558.bin
3fa7fdfc380fa3b4ee453fa16b1e0b4b06c13c932babbb99850ffe7895f87fdf		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD558 15980 bytes

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