Malicious PDF — malware analysis report

Static analysis result for SHA-256 1af367dc46946ecd…

MALICIOUS

PDF

46.0 KB Created: 2020-07-26 05:15:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a02db1f4ffa759b384d80226f974940c SHA-1: 0f627fb05c90e21a5c001c3b93fbe39a0a9dfe5d SHA-256: 1af367dc46946ecdcf9c1af2ecaed89525141c34e5893ed28eb683511de530fe
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is `https://ttraff.com/pify?keyword=ballarat+property+group+rental+application+pdf`, which is likely used to redirect users to a malicious site. The document body, though heavily obfuscated, suggests a lure related to a rental application, aligning with common phishing tactics. The presence of a link farm further supports the malicious intent of directing users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/pify?keyword=ballarat+property+group+rental+application+pdf
    • http://files.pmuasia.com/uploads/1/3/0/8/130874213/dugosujurizurori.pdf
    • http://files.wingspan-wellness.com/uploads/1/3/0/7/130775563/wamovos.pdf
    • http://files.rickverde.com/uploads/1/3/2/7/132740275/gejis.pdf
    • http://files.rickverde.com/uploads/1/3/2/7/132740275/gej
    • https://cdn.shopify.com/s/files/1/0434/4751/7341/files/38232553950.pdf
    • https://cdn.shopify.com/s/files/1/0433/2807/7992/files/95345727463.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/64630415929.pdf
    • https://cdn.shopify.com/s/files/1/0431/7983/5547/files/titejo.pdf
    • https://cdn.shopify.com/s/files/1/0437/7346/0641/files/bopajusitofetuvoxirasu.pdf
    • https://cdn.shopify.com/s/files/1/0429/6212/4959/files/movamemutal.pdf
    • https://cdn.shopify.com/s/files/1/0432/5359/6310/files/jivuwujewekufulononobuw.pdf
    • https://cdn.shopify.com/s/files/1/0433/0536/9758/files/simamoda.pdf
    • https://cdn.shopify.com/s/files/1/0429/0641/9367/files/50215503239.pdf
    • https://cdn.shopify.com/s/files/1/0432/7076/6750/files/77796772131.pdf
    • https://cdn.shopify.com/s/files/1/0432/2285/9943/files/98893631454.pdf
    • https://cdn.shopify.com/s/files/1/0433/5419/4085/files/17919191726.pdf
    • https://cdn.shopify.com/s/files/1/0439/3641/5899/files/60852895208.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/14985018959.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_off00007622.bin
a098510249baf41376aa3fba79e6d3a5c440559dd3bd40c5644867962f4705b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7622 5180 bytes
font_01_sfnt_off000087d5.bin
222adb820f014e1e0b071b7814c388cfebf91e28f8fe9997d1f5b6cdbf59699d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87D5 9996 bytes

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