Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7c6f0074fc3ab37…

MALICIOUS

PDF

49.4 KB Created: 2020-07-09 09:36:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a85c6de08f37d3ff4c64d6ffc6714808 SHA-1: 5e74f43542c07025fe04a4382638d5c03efeb0dd SHA-256: e7c6f0074fc3ab37558cf059a2754bc8cabd3ffffc7e64e67ff3e9bd441aef07
128 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 malicious redirector at 'ttraff.com'. Another critical heuristic indicates a PDF link farm, suggesting an attempt to game search engines for visibility. The document body, though heavily obfuscated, contains keywords related to 'Tom Hardy workout' and the URL 'https://ttraff.com/wb?keyword=tom%20hardy%20workout%20warrior%20pdf', reinforcing the lure. The presence of multiple unknown reputation URLs points towards a distribution network for malicious content.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/wb?keyword=tom%20hardy%20workout%20warrior%20pdf
    • http://files.rhondastruminger.net/uploads/1/3/1/0/131071076/1562942.pdf
    • http://files.seaboarddevelopmentcompany.com/uploads/1/3/1/6/131606673/058e7d8d03.pdf
    • http://files.jilldfitness.com/uploads/1/3/1/4/131407057/zomex.pdf
    • http://files.antiquityranchboergoats.net/uploads/1/3/2/7/132740545/9241925.pdf
    • http://files.geraldinepilgrim.com/uploads/1/3/2/8/132815346/6780435.pdf
    • http://files.krabidream.com/uploads/1/3/2/6/132681566/3285554.pdf
    • http://files.schec.net/uploads/1/3/1/8/131871894/6851944.pdf
    • http://files.annagalatirealtor.com/uploads/1/3/0/7/130776718/979473.pdf
    • http://files.airfiltersalesandservice.com/uploads/1/3/2/3/132303001/f18644.pdf
    • http://files.setsunlimited.com/uploads/1/3/1/4/131408344/vawamobijozaxo-beraruzobikawer.pdf
    • http://files.m.teakslockservice.com/uploads/1/3/1/0/131070895/jezovo.pdf
    • https://kexisofe.files.wordpress.com/2020/07/memutu.pdf
    • https://bixowos236323626.files.wordpress.com/2020/06/kibiposifupevegetoxes.pdf
    • https://sogifefuve684083845.files.wordpress.com/2020/07/25575978429.pdf
    • https://doraxurewaz.files.wordpress.com/2020/06/61035471058.pdf
    • https://zizuxufu.files.wordpress.com/2020/06/83880420754.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dubisetebezurazoxodo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dadimutixiwukigojubiw.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57148414383.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://bixowos236323626.files.wordpress.com/2020/06/kibiposifupevegetoxe

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000084ec.bin
b28176f4517ffbc4b2d97c2943f231260543f8fde2ced52f3ecc219a431bf31e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84EC 4936 bytes
font_01_sfnt_off000095c4.bin
d26f7069387bfcdc5efce61b45be43512dc82d5de7807a8f175784df795eacb0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95C4 10148 bytes

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