PDF malware analysis — malicious · cc956482175a769a

MALICIOUS

PDF

46.6 KB Created: 2020-07-29 13:40:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 8a164e5b77be012a18afd785ce6c0f27 SHA-1: 2f39107e354797e204b5f2c0109d67263e598041 SHA-256: cc956482175a769a0e9c2cea65c3b4e6ad06e1bf1f8b8cb77930f61232003b8d

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, which points to 'https://ttraff.cc/pify?keyword=acls+study+guide+pdf+free'. Additionally, it features a PDF link farm heuristic, indicating a large number of outbound links, with the first being 'https://cdn.shopify.com/s/files/1/0433/0687/7080/files/judegesuzopo.pdf'. The document body, though heavily obfuscated, suggests a lure related to 'Acls study guide pdf free'.

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=acls+study+guide+pdf+free
- http://files.imtawexford.com/uploads/1/3/0/8/130873826/nasutivoxobov.pdf
- http://files.meditation-magic.com/uploads/1/3/1/8/131871772/puwuvasaxagizesew.pdf
- http://files.violinstringreview.com/uploads/1/3/2/6/132682048/0df45a91506fbe.pdf
- http://files.gallatinbreastfeedingcoalition.org/uploads/1/3/1/6/131637092/118d971e8f390.pdf
- http://files.gallatinbreastfeedingcoalition.org/uploads/1/3/1/6/131637092/118d971
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/judegesuzopo.pdf
- https://cdn.shopify.com/s/files/1/0430/7304/4634/files/rifumokidotewi.pdf
- https://cdn.shopify.com/s/files/1/0430/7389/6602/files/50527311209.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31184917419.pdf
- https://cdn.shopify.com/s/files/1/0438/4443/6128/files/litexovasuwadoxoki.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mipubafuminidumef.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wifufokamavobopizevotug.pdf
- https://cdn.shopify.com/s/files/1/0438/3558/8770/files/depikimokuzomav.pdf
- https://cdn.shopify.com/s/files/1/0430/8110/5575/files/wumubumafa.pdf
- https://cdn.shopify.com/s/files/1/0433/5520/9879/files/gijavuzejofado.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/logopazunu.pdf
- https://cdn.shopify.com/s/files/1/0428/9291/8947/files/23988707509.pdf
- https://cdn.shopify.com/s/files/1/0439/2324/3176/files/wewopirizipodiz.pdf
- https://cdn.shopify.com/s/files/1/0439/8006/2878/files/42770733120.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_off0000775f.bin` `33722fb4979a4a775d1396fa39f3db601d5958200d932430bcdf0d93d453b0c6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x775F	4872 bytes
`font_01_sfnt_off0000880f.bin` `3f10bbd6f18fc2e6ba04d9fcdce7dcc0b17cbde0daab59eea6dfbaed8768a6b2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x880F	11016 bytes

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