Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7a93ea12e9db1db…

MALICIOUS

PDF

57.4 KB Created: 2020-08-27 22:45:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 862c67f847651e465b7c82f9d697b281 SHA-1: 0ede762d866d8a2ce5340d342e71773aada8c22f SHA-256: e7a93ea12e9db1dbdb81e390408938be7097902222e211c2f2bddff5f103455d
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=ikimono+gakari+blue+bird+mp3+stafaba'. Additionally, another critical heuristic indicates a PDF link farm with numerous external links, many hosted on Shopify. The document body, though heavily corrupted, also contains the same redirector URL and several Shopify URLs, reinforcing the lure. The primary intent appears to be redirecting users to malicious infrastructure, likely for phishing or malware distribution.

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=ikimono+gakari+blue+bird+mp3+stafaba
    • http://files.sydneyruby.com/uploads/1/3/2/8/132814958/rivopizakanovibug.pdf
    • http://rulogija.salisburypowerwash.com/uploads/1/3/0/7/130776445/3456088.pdf
    • http://files.airlinepilotservice.com/uploads/1/3/2/8/132814826/d48539f0d96e5.pdf
    • https://cdn.shopify.com/s/files/1/0431/6377/9240/files/47988406554.pdf
    • https://cdn.shopify.com/s/files/1/0432/7548/5348/files/bixoxutodusa.pdf
    • https://cdn.shopify.com/s/files/1/0432/1175/1588/files/bittersweet_sarah_ockler.pdf
    • https://cdn.shopify.com/s/files/1/0439/2907/5867/files/doxubigolavovu.pdf
    • https://cdn.shopify.com/s/files/1/0430/8339/9329/files/vijamerajoxegupuxasafegen.pdf
    • https://cdn.shopify.com/s/files/1/0434/0934/2621/files/initiative_vs._guilt_example.pdf
    • https://cdn.shopify.com/s/files/1/0452/4238/4545/files/adventurer_law_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0428/4622/4551/files/marketing_activation_plan.pdf
    • https://cdn.shopify.com/s/files/1/0432/7122/5502/files/pasimilogiv.pdf
    • https://cdn.shopify.com/s/files/1/0429/2273/7830/files/stick_stunt_bike_2.pdf
    • https://cdn.shopify.com/s/files/1/0428/7509/3159/files/13995666430.pdf
    • https://cdn.shopify.com/s/files/1/0429/0985/9999/files/java_8_api_docs.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 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004ee9.bin
2200500a8ed657b07993b6dc454d2948dea943587f727d5903565cba22984813		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4EE9 7580 bytes
font_01_sfnt_off0000687a.bin
0f07b248d5d4202dec474f6e42d307f27d9d60a23967b8f47b38902f57255e1b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x687A 5548 bytes
font_02_sfnt_off00007b2a.bin
1757e9b21583d324d419cc79f07ea3b967ec962ebb57f4057bcf2fb90cc0d392		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B2A 2128 bytes
font_03_sfnt_off000084fd.bin
ce86a50685d6c1d3e069918624ac2a70c1b6e0db6310055d051a664931af9684		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84FD 10552 bytes
font_04_sfnt_off0000a926.bin
664ab4ea0664000753d97710e1032d1645ac8208db6ad375a13d404fbc7f0430		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA926 18984 bytes
font_05_sfnt_off0000c763.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC763 4324 bytes

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