PDF malware analysis — malicious · 43a6aed958980f74

MALICIOUS

PDF

42.5 KB Created: 2020-08-13 23:00:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: ab89e57a630a43cd4c736fc9febd00c3 SHA-1: 646579a3f5baa6f6f79082fa4e1f304d05333bce SHA-256: 43a6aed958980f74b78b397814a145b4c640f47f762c20f2f665b9195684db76

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The document body, though heavily obfuscated, contains URLs that are also present in the heuristic findings. The primary malicious URL identified is https://ttraff.ru/pify?keyword=jawbone+icon+bluetooth+manual, which is likely used to redirect users to further malicious content. The presence of numerous external PDF links suggests an attempt at SEO manipulation or a link farm to distribute malicious content.

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.ru/pify?keyword=jawbone+icon+bluetooth+manual
- http://files.gameart2d.com/uploads/1/3/2/6/132683264/32ee3f82f0db6.pdf
- http://tefevim.ferrerobouquetphilippines.com/uploads/1/3/2/6/132682883/kujixono.pdf
- http://files.andreamalinskymason.com/uploads/1/3/2/3/132303083/takesajudajoxoxogov.pdf
- https://cdn.shopify.com/s/files/1/0438/3955/3696/files/74520067101.pdf
- https://cdn.shopify.com/s/files/1/0432/8354/6267/files/xenalinulegojewes.pdf
- https://cdn.shopify.com/s/files/1/0431/7573/9560/files/33112907066.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32377204601.pdf
- https://cdn.shopify.com/s/files/1/0439/8222/5566/files/plentymarkets_handbuch.pdf
- https://cdn.shopify.com/s/files/1/0432/8852/7013/files/dokodo.pdf
- https://cdn.shopify.com/s/files/1/0440/8541/1990/files/86063755400.pdf
- https://cdn.shopify.com/s/files/1/0431/8570/1019/files/auditoria_ambiental_de_una_empresa.pdf
- https://cdn.shopify.com/s/files/1/0429/1778/9863/files/xosejisadez.pdf
- https://cdn.shopify.com/s/files/1/0430/7694/4021/files/80348963397.pdf
- https://cdn.shopify.com/s/files/1/0433/6222/2232/files/11032589802.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_off00004b01.bin` `6da7c4b14aaf0e30781038794081c47ce1336ea9155f8de0a88a55d6aa7b8070`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4B01	4868 bytes
`font_01_sfnt_off00005b76.bin` `c31e7f6fa056e49cfb02881e06495cd42f249eea76a9631c6ac9b73b3928654c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5B76	16024 bytes
`font_02_sfnt_off00008cde.bin` `7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8CDE	4324 bytes

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