Malicious PDF — malware analysis report

Static analysis result for SHA-256 a176789cfe9df4f5…

MALICIOUS

PDF

109.8 KB Created: 2020-08-01 13:39:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f5ef7dabd87f95d1c01178fc2a1184e SHA-1: b71b99e5a097e2a5b98bd5609a1ef1ddd47bc2de SHA-256: a176789cfe9df4f595bd8f0fa1890506ad1236498ca579fc5e9fbbc38e44dfe8
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one heuristic identifying it as a PDF link farm. One of these links, 'https://ttraff.ru/pify?keyword=rip+stands+for', is flagged as a known malicious redirector. The document body is heavily obfuscated but contains this URL and other Shopify-hosted PDF links, suggesting a campaign to distribute malicious content or manipulate search engine results.

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.ru/pify?keyword=rip+stands+for
    • http://files.kanley.org/uploads/1/3/1/8/131871424/bitevomuma.pdf
    • http://files.multnomahcityside.com/uploads/1/3/1/8/131871439/raneko.pdf
    • http://files.satellitecityhall.com/uploads/1/3/2/6/132683264/pifed_jixesebezawazap_rovorivuv.pdf
    • https://cdn.shopify.com/s/files/1/0431/6043/6900/files/mifotudenixazalinikigazi.pdf
    • https://cdn.shopify.com/s/files/1/0431/8684/7904/files/disunugiwek.pdf
    • https://cdn.shopify.com/s/files/1/0438/3758/7613/files/usb_xhci_compliant_host_controller.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/52299098946.pdf
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/24129031037.pdf
    • https://cdn.shopify.com/s/files/1/0439/3598/9915/files/lojaxizedafarevubupef.pdf
    • https://cdn.shopify.com/s/files/1/0429/5491/6003/files/vebibugitobani.pdf
    • https://cdn.shopify.com/s/files/1/0428/3426/4231/files/44966965142.pdf
    • https://cdn.shopify.com/s/files/1/0430/4257/0401/files/53667524943.pdf
    • https://cdn.shopify.com/s/files/1/0430/7304/4642/files/noboguxisisekijurozog.pdf
    • https://cdn.shopify.com/s/files/1/0434/0337/8839/files/fosofonuwokimar.pdf
    • https://cdn.shopify.com/s/files/1/0430/4453/6473/files/learning_java_through_alice_3.pdf
    • https://cdn.shopify.com/s/files/1/0436/0660/5987/files/25465120904.pdf
    • https://cdn.shopify.com/s/files/1/0431/5093/4173/files/86135534045.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 12

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_008_off0000e0ec.bin
39969526cdbf0651695708c3e0b5e74fa3c3961bda87b4b72db6f7ae2f47e169		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0xE0EC 7100 bytes
stream_011_off00011d86.bin
e76349ad397aef3afb7fad85275fc1690091f0d9ff448433ca4038c05a6e6a6e		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x11D86 7996 bytes
stream_013_off000166b9.bin
65457584957a444d78bd7c94206fa9710a64e9c2ef302b4762701c5018b88bdc		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x166B9 23148 bytes
font_00_sfnt_off00008641.bin
d22a720af6ef021ad5599adcaa6a9ffde1323c80b85d975164cb03810e26414a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8641 6500 bytes
font_01_sfnt_off0000962e.bin
1d316af105cb40995cfcdc3e9a082f45d5bf106fd9ab06b6823df23f4eece77d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x962E 6224 bytes
font_02_sfnt_off0000abe8.bin
23c0bbd8a6ba775b3326eb0c7d192e5249a405e362f71b7497420abe42e1be5e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xABE8 5012 bytes
font_03_sfnt_off0000bd06.bin
fa96258d8f83a00eb888c8c13d7e218811825fc986d9158cc5600bb55f1fca93		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBD06 5428 bytes
font_04_sfnt_off0000ce52.bin
78143a59a28d36f9f6edf8176b9293e5cf8c101283406326a327c52c31b25583		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCE52 5688 bytes
font_06_sfnt_off0000f666.bin
8771199dc227aa3f3140ad4f69d0666050c806aa98a821e6236eb9f301cf9be9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF666 6552 bytes
font_07_sfnt_off00010c0a.bin
ea06de1f364bcfdac0d2dc265855666dda502d3dd720d2b16e0135add8ad025d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10C0A 5092 bytes
font_09_sfnt_off00013397.bin
21913ef3dc3b6ec337a79a12fe6ad6501604bb3c5896b8b5419fbb9cdb447c49		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13397 16328 bytes
font_11_sfnt_off0001921d.bin
d278afcb26855086e363a9dfda78b05d6edc469706e306c5064fb15a42767108		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1921D 5580 bytes

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