PDF malware analysis — malicious · 556ee937fb431df6

MALICIOUS

PDF

47.8 KB Created: 2020-07-28 10:39:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: ab72a0fff8a36e7a693dc4aa628c2266 SHA-1: 05eb2b0224744d3b7b74b762825cefb10fb620f7 SHA-256: 556ee937fb431df646d303fb9ca54d9d349d4381ea0115008665df756650dc5b

150 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF contains a lure for 'Asphalt nitro hack new version' and embeds multiple links. One critical heuristic indicates a malicious redirector link to 'ttraff.com', which is likely the initial stage of a malware delivery or phishing attack. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool sometimes used to create malicious PDFs. The presence of numerous external links, many hosted on Shopify, suggests a link farm or content distribution network for the malicious payload.

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=asphalt+nitro+hack+new+version
- http://files.janinemercandetti.com/uploads/1/3/1/8/131857120/7835687.pdf
- http://files.dynacomtv.com/uploads/1/3/2/7/132710772/53e4a19bb186.pdf
- http://files.fixintorepair.com/uploads/1/3/2/6/132681033/dawowu-vaxavoti.pdf
- http://files.tentmakers.co/uploads/1/3/1/4/131437464/jafefawaga_zuwakani.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56655156305.pdf
- https://cdn.shopify.com/s/files/1/0432/6424/5925/files/3982599484.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69892687871.pdf
- https://cdn.shopify.com/s/files/1/0433/9492/4694/files/kefamipiradexajok.pdf
- https://cdn.shopify.com/s/files/1/0437/0844/8919/files/kejijelefizuzuki.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xokuwunojuvilil.pdf
- https://cdn.shopify.com/s/files/1/0432/2931/5229/files/25453938187.pdf
- https://cdn.shopify.com/s/files/1/0427/5725/9420/files/wofarifuxerofanad.pdf
- https://cdn.shopify.com/s/files/1/0433/9082/8700/files/53265342898.pdf
- https://cdn.shopify.com/s/files/1/0431/7980/2782/files/65280683001.pdf
- https://cdn.shopify.com/s/files/1/0430/3106/8823/files/17595497154.pdf
- https://cdn.shopify.com/s/files/1/0435/8891/1267/files/xemewezexigunatulonivuji.pdf
- https://cdn.shopify.com/s/files/1/0431/0423/9770/files/69120045440.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_off00007dea.bin` `99c9828aefa2d446c56c0f0a57f227102a7fd10bb17903502792d13f9003aae0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7DEA	5016 bytes
`font_01_sfnt_off00008eef.bin` `42d2e39e4921d866b8c1c9508caa9b594068e372acff6ef42479516498bdbc6f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8EEF	10128 bytes

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