PDF malware analysis — malicious · 4c7e985a1c9e6053

MALICIOUS

PDF

38.3 KB Created: 2020-08-11 01:05:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b28cc74f9a287e0b9361bbf1850321b4 SHA-1: 2e789dacafa4b9bd7b6d932b54fd53bea494fb79 SHA-256: 4c7e985a1c9e60536ab2098a6ad2b23ab403bd57cf7fb21b599086f2bb803e94

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link disguised as a car owner's manual that redirects to a malicious URL. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, many of which are hosted on Shopify. The primary malicious URL identified is ttraff.com, which is flagged as a redirector. The ML classifier strongly indicates maliciousness.

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/wb?keyword=2011%20hyundai%20getz%20owner
- http://files.liira.org/uploads/1/3/0/8/130813639/woxudoli-velozi-wugipoxim.pdf
- http://files.frvincehuber.com/uploads/1/3/1/4/131438891/dosuv.pdf
- http://rojogote.billsenglish.com/uploads/1/3/1/4/131482976/4965858.pdf
- https://cdn.shopify.com/s/files/1/0434/2936/3878/files/11646517173.pdf
- https://cdn.shopify.com/s/files/1/0431/3173/2132/files/tidamijipepodagatafotobu.pdf
- https://cdn.shopify.com/s/files/1/0433/0625/4494/files/apj_abdul_kalam_essay.pdf
- https://cdn.shopify.com/s/files/1/0439/7786/7422/files/vakomi.pdf
- https://cdn.shopify.com/s/files/1/0430/2195/9325/files/fusionner_des_fichiers_sur_mac.pdf
- https://cdn.shopify.com/s/files/1/0430/6678/5949/files/1082838963.pdf
- https://cdn.shopify.com/s/files/1/0433/7175/7718/files/3452575908.pdf
- https://cdn.shopify.com/s/files/1/0438/5452/8677/files/sajijepirodixomoxifuvo.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/67279733654.pdf
- https://cdn.shopify.com/s/files/1/0428/8905/2316/files/fanowopi.pdf
- https://cdn.shopify.com/s/files/1/0437/6638/2746/files/tiwedupupudutepukutarame.pdf
- https://cdn.shopify.com/s/files/1/0431/8553/7175/files/nojifibaliji.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/garul.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_off0000475b.bin` `9194731f6d1b06ee5cc41f4707a48319d04326bcdace2618d475885756ec6191`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x475B	5628 bytes
`font_01_sfnt_off00005a6a.bin` `e5721d9e59177a13159a9b7a66958d709c3f6fba993b37a358d770fb02e48ab2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5A6A	10048 bytes
`font_02_sfnt_off00007c98.bin` `0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7C98	4324 bytes

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