PDF malware analysis — malicious · cfcea51f79947b44

MALICIOUS

PDF

42.7 KB Created: 2020-08-01 21:04:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9edbff0c506ba1459914c4c76c1b8ac8 SHA-1: 40e328a92ce7b1021458bd87e92c0e0a81e9442b SHA-256: cfcea51f79947b44653090e01a574384556dd9ab174f68476c03b85818908846

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains embedded links, with one pointing to a known malicious redirector at 'https://ttraff.com/pify?keyword=live+streaming+kit'. The document body, though heavily obfuscated, contains text fragments that, when combined with the heuristic firings, suggest a lure related to 'live streaming kit'. The presence of numerous external PDF links also indicates a link farm strategy, likely to improve search engine ranking for malicious content. 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.com/pify?keyword=live+streaming+kit
- http://files.desantedesigns.com/uploads/1/3/2/7/132712661/tovon_febekutivit_riduwar.pdf
- http://files.airoverheadcranes.com/uploads/1/3/1/4/131437139/c0ec2bc40084.pdf
- http://files.exeterbathrooms.co.uk/uploads/1/3/1/4/131483830/c5281394be4c6.pdf
- http://files.pilgrimsresttea.com/uploads/1/3/0/7/130775342/donewuwaloko.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/70474217151.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jewepogepavab.pdf
- https://cdn.shopify.com/s/files/1/0430/0426/4601/files/13888119376.pdf
- https://cdn.shopify.com/s/files/1/0430/1602/8309/files/weduwumabolajufonitetu.pdf
- https://cdn.shopify.com/s/files/1/0433/6576/1176/files/totuloradivuj.pdf
- https://cdn.shopify.com/s/files/1/0431/3550/0439/files/kasaju.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pedarivorenali.pdf
- https://cdn.shopify.com/s/files/1/0431/2642/3708/files/lujuxexoruv.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wugituvunajobi.pdf
- https://cdn.shopify.com/s/files/1/0432/6175/5560/files/43579253626.pdf
- https://cdn.shopify.com/s/files/1/0431/5326/0706/files/vonopavoletesuxu.pdf
- https://cdn.shopify.com/s/files/1/0440/1935/1710/files/gonoxuzomidajetasekid.pdf
- https://cdn.shopify.com/s/files/1/0430/0118/4417/files/92476546300.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_off00006adc.bin` `328ec97540d70a39e1e9db813018069611a6bb1d48501a14a9860dc4eb8a0451`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6ADC	5036 bytes
`font_01_sfnt_off00007bf4.bin` `e55468cc7ee6bcf0ba0a757178c4c735e98c58d6ec3cb338d3004be0184753bb`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7BF4	9964 bytes

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