Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6f8fdcf373f1f60…

MALICIOUS

PDF

46.3 KB Created: 2020-08-05 06:46:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a42895abbb0da4df2eece76ed27d0ae9 SHA-1: 20387225317ccc62766367e6ba845846bdddd633 SHA-256: e6f8fdcf373f1f60f9d8164fde78bfcac17bd8a11895a0dcfe4ed4fe6c4bca67
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.cc/pify?keyword=apc+smart+ups+5000+manual+pdf'. The document body, though heavily obfuscated, appears to contain keywords related to the URL, suggesting a lure to disguise malicious intent. The presence of a link farm further indicates an attempt to manipulate search engine results or distribute malicious content broadly. No scripts were extracted from this sample.

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.cc/pify?keyword=apc+smart+ups+5000+manual+pdf
    • http://files.courtneyspetandequineservices.com/uploads/1/3/1/4/131452922/dotegopo.pdf
    • http://files.antonellapiccinigallery.com/uploads/1/3/2/7/132712306/topaludusawamixo.pdf
    • http://files.betsykroon.com/uploads/1/3/0/7/130738758/faxib_jidujuxukofu_vovelajod_fujor.pdf
    • http://xakab.hannahmassagetherapy.com/uploads/1/3/1/3/131383791/08f9ef4bfed40d.pdf
    • http://files.nerissalee.com/uploads/1/3/0/7/130740231/620874724.pdf
    • https://cdn.shopify.com/s/files/1/0432/9019/8180/files/bozofixaseru.pdf
    • https://cdn.shopify.com/s/files/1/0429/9387/7145/files/caring_for_rabbits.pdf
    • https://cdn.shopify.com/s/files/1/0430/8307/1650/files/70373215438.pdf
    • https://cdn.shopify.com/s/files/1/0438/3942/2626/files/lofavuxoxes.pdf
    • https://cdn.shopify.com/s/files/1/0435/6761/2065/files/t_c3_a9a_leoni.pdf
    • https://cdn.shopify.com/s/files/1/0431/1459/4464/files/vonumoxisowa.pdf
    • https://cdn.shopify.com/s/files/1/0432/0644/3176/files/22947006932.pdf
    • https://cdn.shopify.com/s/files/1/0434/3929/2577/files/37640617920.pdf
    • https://cdn.shopify.com/s/files/1/0439/6243/3694/files/78699509477.pdf
    • https://cdn.shopify.com/s/files/1/0428/8384/2215/files/42656215994.pdf
    • https://cdn.shopify.com/s/files/1/0432/7899/1513/files/sapupidaduxelifaze.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kekesapenogetiru.pdf
    • https://cdn.shopify.com/s/files/1/0433/3839/9912/files/67809216256.pdf
    • https://cdn.shopify.com/s/files/1/0434/3706/4344/files/rutazel.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_off00006aad.bin
ebd4f8a47f276b26480be5e368d24bf8992f2f705a07af2fa52d6693500f01da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AAD 5556 bytes
font_01_sfnt_off00007d7f.bin
8a024057cdea354d43dfc71e92e5a4287e16a93ee665f7500824792d5eca1d36		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D7F 15232 bytes

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