PDF malware analysis — malicious · 8fc188da501f96b3

MALICIOUS

PDF

33.1 KB Created: 2020-08-02 05:42:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a345e070712fc0f7f64fa6467552e28e SHA-1: 2c4244f4d9b05c90d88467ee3d1c2a2d645e4026 SHA-256: 8fc188da501f96b378e4bb75d300f7612947b6502994acd97521d32d15fc2c10

150 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF contains a mass external link farm, with one critical link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=microsoft+money+replacement', suggesting a lure to a malicious site. The presence of numerous PDF links, many hosted on seemingly unrelated domains, indicates a link farm designed to distribute malicious content or traffic.

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=microsoft+money+replacement
- http://files.dianeetatumwriter.com/uploads/1/3/2/6/132680976/pavopudimigubopewimi.pdf
- http://files.drkatieskitchen.com/uploads/1/3/1/3/131378776/pufoju-wumirizi-bumil.pdf
- http://files.greatgorillarun.org/uploads/1/3/0/8/130874416/3c96e6d3.pdf
- http://files.uusintaensemble.fi/uploads/1/3/1/8/131858044/8920717.pdf
- http://files.danielklittleton.com/uploads/1/3/1/4/131452733/vikeguladopikaj-tadalorefeji-zaramamurabavut.pdf
- https://cdn.shopify.com/s/files/1/0433/8896/0933/files/nomipu.pdf
- https://cdn.shopify.com/s/files/1/0434/0957/1990/files/12124207081.pdf
- https://cdn.shopify.com/s/files/1/0430/8133/4933/files/27701717313.pdf
- https://cdn.shopify.com/s/files/1/0428/7866/4867/files/23392383425.pdf
- https://cdn.shopify.com/s/files/1/0432/3442/7047/files/466456386.pdf
- https://cdn.shopify.com/s/files/1/0437/4921/2311/files/datumegisimufeva.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/18491093394.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/95509007145.pdf
- https://cdn.shopify.com/s/files/1/0430/5590/6967/files/a_team_ed_sheeran_lyrics.pdf
- https://cdn.shopify.com/s/files/1/0436/7260/0726/files/35101676361.pdf
- https://cdn.shopify.com/s/files/1/0430/3778/6266/files/wupivinugagulotawalilu.pdf
- https://cdn.shopify.com/s/files/1/0429/8915/8554/files/bupabiburizugejumiseli.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_off000046ba.bin` `c29b5b83728f58a5a53769bc2fc5f59f7c3a2812a66018f5d77fdbc561db477c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x46BA	5268 bytes
`font_01_sfnt_off000058a2.bin` `99a0589d74f67f54fc75298015dbceef04dbf1d4239ce4627461168e740e0587`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x58A2	9056 bytes

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