Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e346f6a6e09fd84…

MALICIOUS

PDF

45.1 KB Created: 2020-08-15 12:43:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d24f6ba5476c15beeecd82e845746e5 SHA-1: 16ccecbc68d964fc0350bff175cd5fc6e045781c SHA-256: 8e346f6a6e09fd84411fbe555a9a5d467ab22544141d86f8a059b21bbb2c2aea
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, identified as a link farm. One of these links, https://ttraff.ru/pify?keyword=marvel+super+war+apk+play+store, is flagged as a malicious redirector. The document body, though heavily obfuscated, appears to contain text related to the URL, suggesting a lure to trick users into clicking the malicious link. The primary attack pattern involves redirecting users to potentially harmful content.

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=marvel+super+war+apk+play+store
    • http://files.goldeneaglesweden.com/uploads/1/3/1/4/131406835/norer.pdf
    • http://files.corrieknapp.com/uploads/1/3/2/6/132696104/7844203.pdf
    • https://cdn.shopify.com/s/files/1/0430/0718/0954/files/46511397736.pdf
    • https://cdn.shopify.com/s/files/1/0434/1284/8790/files/game_informer_magazine_font_name.pdf
    • https://cdn.shopify.com/s/files/1/0440/6162/2437/files/the_magic_of_accelerated_learning.pdf
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/renewable_energy_systems_advanced_conversion_technologies_and_applications.pdf
    • https://cdn.shopify.com/s/files/1/0430/8307/1650/files/megepejanakigefemexab.pdf
    • https://cdn.shopify.com/s/files/1/0437/8191/4781/files/katedoxok.pdf
    • https://cdn.shopify.com/s/files/1/0434/1560/1304/files/47938630519.pdf
    • https://cdn.shopify.com/s/files/1/0437/2099/9064/files/32469802773.pdf
    • https://cdn.shopify.com/s/files/1/0430/6921/0773/files/gugevesopemidopiwal.pdf
    • https://cdn.shopify.com/s/files/1/0432/8331/6891/files/western_plaguelands_flight_path_horde.pdf
    • https://cdn.shopify.com/s/files/1/0434/4292/9821/files/86707366413.pdf
    • https://cdn.shopify.com/s/files/1/0433/4642/8059/files/retabizadebuduwilitanis.pdf
    • https://cdn.shopify.com/s/files/1/0432/5936/3478/files/don_t_forget_the_lyrics_game.pdf
    • https://cdn.shopify.com/s/files/1/0433/4102/1334/files/72649462283.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_off000073d4.bin
4f69dfe2e4d9ddb7968416e91d10dcf3799c6a9d54a712edee3fdd5ff2a162d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73D4 5136 bytes
font_01_sfnt_off00008584.bin
8b18e0aff1ef29fb0c5e5e2cf3df33fbe8d56cbad07c13f7bce1141c8e3e2677		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8584 9968 bytes

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