PDF malware analysis — malicious · 8b619e1c56a3de95

MALICIOUS

PDF

42.9 KB Created: 2020-07-29 16:43:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 30c78bc561fb7db98e9b3e4b69e77e63 SHA-1: 3f618ff9c717326c4d34060cb33345a6dae3af82 SHA-256: 8b619e1c56a3de955145a1cba8961a085b28de4db4be34aa940a726a8a993ee0

130 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains multiple external links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, suggests a lure related to a 'credit voucher format'. The presence of numerous links, including a link farm, indicates an attempt to drive traffic to malicious sites. The primary attack vector appears to be social engineering via a deceptive document.

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.
Fake invoice / payment lure low SE_INVOICE_LURE

Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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=credit+voucher+format+pdf
- http://files.simongibney.com/uploads/1/3/2/7/132741144/gidazexuzevolalixa.pdf
- http://files.azpattersonedu.com/uploads/1/3/2/7/132740814/fowidedizomevosar.pdf
- http://files.michaelbrownslawoffice.com/uploads/1/3/1/4/131406762/xajixolaxexojobegu.pdf
- http://files.azpattersonedu.com/uploads/1/3/2/7/13274081
- https://cdn.shopify.com/s/files/1/0432/4474/8950/files/pifujapuva.pdf
- https://cdn.shopify.com/s/files/1/0436/9544/0040/files/8470525256.pdf
- https://cdn.shopify.com/s/files/1/0432/8669/1998/files/duvoduzedimadepeguvij.pdf
- https://cdn.shopify.com/s/files/1/0432/1024/4260/files/kikotagoz.pdf
- https://cdn.shopify.com/s/files/1/0432/1155/4980/files/tezosijuxed.pdf
- https://cdn.shopify.com/s/files/1/0428/4783/0183/files/75709302305.pdf
- https://cdn.shopify.com/s/files/1/0432/4638/7362/files/37450909632.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kubogofire.pdf
- https://cdn.shopify.com/s/files/1/0428/5664/4774/files/39468689894.pdf
- https://cdn.shopify.com/s/files/1/0439/9392/3742/files/nuvamafukujinobujux.pdf
- https://cdn.shopify.com/s/files/1/0433/2208/1448/files/53471751012.pdf
- https://cdn.shopify.com/s/files/1/0436/5680/6553/files/puvijijojul.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00006a13.bin` `75d031f00dffb63b646bc15ff5ca3336e46ab833f61aa78980f6a64c0efdf279`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6A13	5044 bytes
`font_01_sfnt_off00007b47.bin` `90d087f8ea9872e70e47f13d6eb1d1d411f1315afe2497e7d2313c764d19f591`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7B47	10464 bytes

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