PDF malware analysis — malicious · d98478d375cc3483

MALICIOUS

PDF

77.1 KB Created: 2020-08-12 09:00:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 4b2de675def71723b54b01a4feaffe5e SHA-1: 03c76059b96fde89d7468d817d7cbc04e8f1c602 SHA-256: d98478d375cc3483d3997f9bc08b3cf5b718e5bf3f4642ae77e91ee8c34ddbc6

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, specifically pointing to 'https://ttraff.ru/pify?keyword=cerebellar+disorders+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The PDF also contains a large number of external links, suggesting a link farm or SEO poisoning tactic to increase visibility. No scripts were extracted from this sample.

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=cerebellar+disorders+pdf
- http://files.thetraveleducator.com/uploads/1/3/0/9/130969057/lawobosi.pdf
- http://files.marinerswelfare.com/uploads/1/3/0/8/130813991/gupul.pdf
- http://komapo.neurovestibular.com/uploads/1/3/1/3/131383314/eb3052693.pdf
- http://files.iccspa2020.com/uploads/1/3/1/4/131438557/c0d1c3499fd78db.pdf
- http://files.alimaclaurin.net/uploads/1/3/0/8/130874162/5008371.pdf
- https://cdn.shopify.com/s/files/1/0431/0577/9863/files/htst_pasteurization.pdf
- https://cdn.shopify.com/s/files/1/0429/1382/4927/files/18036323983.pdf
- https://cdn.shopify.com/s/files/1/0438/0819/4722/files/anthony_giddens_download.pdf
- https://cdn.shopify.com/s/files/1/0429/9436/8663/files/xafuxarosanod.pdf
- https://cdn.shopify.com/s/files/1/0428/7148/8668/files/depovunelurofopazud.pdf
- https://cdn.shopify.com/s/files/1/0450/0806/0574/files/71595841291.pdf
- https://cdn.shopify.com/s/files/1/0428/4026/0775/files/25947558501.pdf
- https://cdn.shopify.com/s/files/1/0433/8365/2506/files/76493169984.pdf
- https://cdn.shopify.com/s/files/1/0432/4281/5643/files/65056391812.pdf
- https://cdn.shopify.com/s/files/1/0429/0645/2127/files/35492992868.pdf
- https://cdn.shopify.com/s/files/1/0431/5440/7580/files/gafijogewerovufefudamanu.pdf
- https://cdn.shopify.com/s/files/1/0429/7487/1711/files/caries_classification.pdf
- https://cdn.shopify.com/s/files/1/0431/1311/9905/files/41554850452.pdf
- https://medlineplus.gov/cerebellardisorders.html
- 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_off0000f1b9.bin` `9c2d0d8959de3577f95ed37da5ded064f87bb7127150a4965e4a4e4a1479db30`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF1B9	5080 bytes
`font_01_sfnt_off000102fd.bin` `4e3d895db95b18761e13ab8cabde6380454a4464867b9e42b58d61e456caf97e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x102FD	10756 bytes

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