PDF malware analysis — malicious · 9254ede27d33d2ec

MALICIOUS

PDF

43.2 KB Created: 2020-08-23 01:57:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b91c2c3d549575ab24cdb10b54a804aa SHA-1: 11301d666c8ac7f1fb43a1b92191023823c99b50 SHA-256: 9254ede27d33d2ecebb935858b9ad8de69fc815b000a8bfaa9a44f6fc779cdd7

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify, and one critical link redirects to a known malicious domain. The document body, though heavily obfuscated, contains text related to 'Aptoide apk descargar gta san andreas' and the malicious redirector URL, indicating a lure to a potentially harmful download. The ML classifier also strongly flagged this PDF as malicious.

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=aptoide+apk+descargar+gta+san+andreas
- http://files.lofasothebosso.com/uploads/1/3/1/3/131398125/jusezidoxo_nozise.pdf
- http://files.haverain.com/uploads/1/3/0/9/130969695/kikemugobakup-zorojora.pdf
- http://files.divotees.co.uk/uploads/1/3/1/4/131438847/turerasuzopedob.pdf
- http://files.tcounseling.com/uploads/1/3/0/9/130969372/tovebetasinamaperav.pdf
- http://files.stjohnstuckahoe.com/uploads/1/3/1/8/131871705/waxaxoviku.pdf
- https://cdn.shopify.com/s/files/1/0429/3722/1276/files/87983271536.pdf
- https://cdn.shopify.com/s/files/1/0435/3461/4688/files/rikoxozejorak.pdf
- https://cdn.shopify.com/s/files/1/0430/9005/1221/files/8174927909.pdf
- https://cdn.shopify.com/s/files/1/0439/1239/6968/files/nesafafomibixo.pdf
- https://cdn.shopify.com/s/files/1/0430/1779/7785/files/xofinubobexojawotilivejal.pdf
- https://cdn.shopify.com/s/files/1/0430/7599/3764/files/65458426399.pdf
- https://cdn.shopify.com/s/files/1/0434/0776/9750/files/baxusi.pdf
- https://cdn.shopify.com/s/files/1/0437/0068/2906/files/the_outsider_albert_camus_book.pdf
- https://cdn.shopify.com/s/files/1/0430/8549/6482/files/7439445966.pdf
- https://cdn.shopify.com/s/files/1/0432/3521/3467/files/23154045140.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00005f08.bin` `875a1729fff1b9cb8b67fe688115b5e487ba1db51cb0582e130b61f14fd4e21b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5F08	5052 bytes
`font_01_sfnt_off0000703c.bin` `c57eddd5ac041a83146a611069a79f472441eba25926fa4a4f5cf044a8edb703`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x703C	9868 bytes
`font_02_sfnt_off000091ea.bin` `7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x91EA	4324 bytes

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