Malicious PDF — malware analysis report

Static analysis result for SHA-256 a95f38ea4beb2315…

MALICIOUS

PDF

45.8 KB Created: 2020-07-29 18:06:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d89166f00797e0d1e6f937c99211644 SHA-1: 288a500ffd0b00df7a291e6d4286284045e25f1c SHA-256: a95f38ea4beb23158c55942facaea529a5493cedac99c459c6a387d875d915b2
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a significant portion of which point to a link farm hosted on cdn.shopify.com. One critical heuristic indicates that a link within the document redirects to known malicious infrastructure via ttraff.ru. This suggests the document is designed to funnel users through a series of redirects, likely for malicious purposes such as 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=dowry+prohibition+act+1980+pdf+download
    • http://files.burbankbeat.net/uploads/1/3/2/8/132814929/xufipig.pdf
    • http://files.madellaorganics.com/uploads/1/3/2/7/132740564/bobewaxela_wevazeru.pdf
    • http://files.broadsidestories.net/uploads/1/3/0/9/130969837/sibisi.pdf
    • http://files.ocwpublishing.com/uploads/1/3/2/6/132696280/6dfa3c.pdf
    • http://files.sarahbakpottery.com/uploads/1/3/1/4/131437655/f9d7407f5.pdf
    • http://files.sarahbakpottery.com/uploads/1/3/1/4/131437655/
    • https://cdn.shopify.com/s/files/1/0430/0754/1401/files/feduxedobadizomagixiseta.pdf
    • https://cdn.shopify.com/s/files/1/0431/7272/4897/files/wuravuditojox.pdf
    • https://cdn.shopify.com/s/files/1/0431/8432/4770/files/tulumijuvugi.pdf
    • https://cdn.shopify.com/s/files/1/0428/8711/9007/files/83892627396.pdf
    • https://cdn.shopify.com/s/files/1/0437/3915/2535/files/31529198505.pdf
    • https://cdn.shopify.com/s/files/1/0435/3048/5915/files/lamofi.pdf
    • https://cdn.shopify.com/s/files/1/0430/4365/1741/files/rixupimuwudosilugera.pdf
    • https://cdn.shopify.com/s/files/1/0430/6858/8194/files/15272633370.pdf
    • https://cdn.shopify.com/s/files/1/0428/5834/8700/files/31108817879.pdf
    • https://cdn.shopify.com/s/files/1/0429/6219/0499/files/zufopulexomenaxufofatare.pdf
    • https://cdn.shopify.com/s/files/1/0435/9235/1907/files/17895858581.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_off0000753f.bin
b14a799cfb13dba9e163eaa73780553f23a9060440d909135f8e94568ef3ce51		 pdf-font-stream PDF embedded font (sfnt) at offset 0x753F 5612 bytes
font_01_sfnt_off00008856.bin
2c81868084db4bf1b88105d9f78d129fe89771f1aa884e6d69e66c0853005a31		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8856 9808 bytes

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