Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2b9d1dbe03ee81d…

MALICIOUS

PDF

67.5 KB Created: 2020-08-08 10:59:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3d08eb850909ee502eba9c9f9db1ff09 SHA-1: 354df771aac3754eb6b1898a3a3f0e6271383b88 SHA-256: f2b9d1dbe03ee81dfbc2e81a8669332bf608510a5327056fc9884544d350c5a0
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=diazonium+compounds+pdf'. Additionally, another critical heuristic indicates a PDF link farm, suggesting an attempt to distribute malicious content or manipulate search engine results. The document body, though heavily obfuscated, contains the same URL, reinforcing the malicious intent.

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=diazonium+compounds+pdf
    • http://files.hotrodhenrys.com/uploads/1/3/0/8/130874129/mudubewusobodog_rusipoz_lupelel_vasixeb.pdf
    • http://files.nslimgoodies.com/uploads/1/3/2/7/132740342/guvesarumozekom_waxabivewe.pdf
    • http://files.maryscreativespot.com/uploads/1/3/1/4/131407111/23aa5d8de7b6.pdf
    • http://files.algomaubiz.com/uploads/1/3/1/3/131383318/pegot.pdf
    • https://cdn.shopify.com/s/files/1/0430/3680/3233/files/76352642744.pdf
    • https://cdn.shopify.com/s/files/1/0432/6519/6197/files/lejixugavozin.pdf
    • https://cdn.shopify.com/s/files/1/0429/1965/7628/files/gunigajomakoxifu.pdf
    • https://cdn.shopify.com/s/files/1/0434/3303/3877/files/nevivanet.pdf
    • https://cdn.shopify.com/s/files/1/0433/4842/6920/files/degree_2nd_year_book.pdf
    • https://cdn.shopify.com/s/files/1/0431/5817/5908/files/sigopajixuxelupisede.pdf
    • https://cdn.shopify.com/s/files/1/0428/3373/9932/files/bodezavosimebevarukibef.pdf
    • https://cdn.shopify.com/s/files/1/0434/3185/4247/files/68511448507.pdf
    • https://cdn.shopify.com/s/files/1/0439/4795/0248/files/xagigalolinib.pdf
    • https://cdn.shopify.com/s/files/1/0427/9717/0847/files/pokix.pdf
    • https://cdn.shopify.com/s/files/1/0431/8353/8331/files/93014878275.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/1/0432/6519/6

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b6f8.bin
ddb63e999b4145efc48b7a14d07e7bdda56eefe15a91991d53d45027dc9441a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB6F8 5224 bytes
font_01_sfnt_off0000c8c2.bin
df57e89528796d64072c704f9c4f7d41015671730243a2fbdea116ae423823de		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC8C2 10240 bytes
font_02_sfnt_off0000ec0c.bin
a1bdc24ec6dc0332449754d26803ee00bb6717469f64a18f47c680e22104396b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEC0C 16080 bytes

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