Malicious PDF — malware analysis report

Static analysis result for SHA-256 2545694c46407059…

MALICIOUS

PDF

138.0 KB Created: 2020-08-18 16:50:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5099e1eb6af3dc9e9b7afd1d80632e84 SHA-1: 343558deaa395ca4547abf63e64d6b7b3ef1f69e SHA-256: 2545694c464070595b1616852ecb590e8aa2cdde6d4b5b500cb4777903749ae2
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=buddhist+philosophy+free+pdf', which is also flagged as a malicious redirector. This suggests the document's primary purpose is to trick users into visiting this malicious URL, likely leading to further malware downloads or phishing attempts.

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=buddhist+philosophy+free+pdf
    • http://tituwepa.bell-bottom-blues-btq.com/uploads/1/3/1/4/131437508/kakelozukogo.pdf
    • https://cdn.shopify.com/s/files/1/0434/0806/4677/files/migekufukikibomalijax.pdf
    • https://cdn.shopify.com/s/files/1/0433/8666/7158/files/ronebudaratamezidir.pdf
    • https://cdn.shopify.com/s/files/1/0431/8488/1827/files/31749878687.pdf
    • https://cdn.shopify.com/s/files/1/0433/6294/3127/files/easy_way_to_speak_english_fluently_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/0924/4316/files/zadojukuvu.pdf
    • https://cdn.shopify.com/s/files/1/0427/9291/1007/files/jamovodapikumaju.pdf
    • https://cdn.shopify.com/s/files/1/0436/7102/7865/files/bloodborne_2_pc_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/0811/4340/files/43908506281.pdf
    • https://cdn.shopify.com/s/files/1/0427/9946/4611/files/gowufibijode.pdf
    • https://cdn.shopify.com/s/files/1/0430/4899/2930/files/dibujos_para_colorear_lol.pdf
    • https://cdn.shopify.com/s/files/1/0428/2135/3635/files/zufigamijisirojam.pdf
    • https://cdn.shopify.com/s/files/1/0431/0371/5489/files/28953600756.pdf
    • https://cdn.shopify.com/s/files/1/0432/1322/6139/files/54591696127.pdf
    • https://cdn.shopify.com/s/files/1/0437/8958/2487/files/install_github_command_line.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001b65e.bin
4449d84f60c11be56d2f018fa74d9d256b5971f6392dfcb8f3b0eb4d7bd2593d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1B65E 5796 bytes
font_01_sfnt_off0001ca25.bin
0ba10288b7e9f575fcfd73515d37c6393d475176432b152bfb5bc259ee0532e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1CA25 5072 bytes
font_02_sfnt_off0001db65.bin
11bc5b4602782d0d6b9982d5fca0b9901ca19c2e0012a8f680643bfb4b6b821a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1DB65 14244 bytes
font_03_sfnt_off000204b5.bin
ccf42771811f3bfcfc4881e0ea26c61020463520b77f542a172ed5d532e4d210		 pdf-font-stream PDF embedded font (sfnt) at offset 0x204B5 16088 bytes

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