PDF malware analysis — malicious · 8612fa9b9fd9d1fc

MALICIOUS

PDF

34.6 KB Created: 2020-08-20 06:02:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b4fbe90fd3ec74edefbc0f10b7ea43cf SHA-1: a36e5ff2e1e1f509ad594e1ab6efec7f5a3a7f8c SHA-256: 8612fa9b9fd9d1fcea8ec4fcdcbd871ef7c50a7c764850ef13f482e8bf5bf998

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely used to obscure the final destination of the malicious payload. The presence of a 'Password-protected archive lure' heuristic suggests this PDF is part of a multi-stage attack where the user is prompted to open a password-protected file. The document body itself contains numerous links to Shopify-hosted PDFs, forming a link farm, likely for SEO poisoning or to host further stages of the attack. No scripts were extracted from this sample.

Heuristics 4

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.
Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE

Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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=beyblade+burst+god+rom
- http://files.callthemformeprototype.com/uploads/1/3/1/4/131406864/lisit_xosasu_fikasezejob.pdf
- http://majaro.foothillsphotogroup.com/uploads/1/3/0/8/130814328/7803910.pdf
- http://files.iowasubtleimageryphotos.com/uploads/1/3/0/7/130775759/07b63fedb8.pdf
- http://vevogefor.lhscards.com/uploads/1/3/1/4/131406893/gijotukalitipiraxota.pdf
- https://cdn.shopify.com/s/files/1/0429/1290/7423/files/sodamisabufadolewabipolix.pdf
- https://cdn.shopify.com/s/files/1/0431/3730/2685/files/pigibutexotezumotijez.pdf
- https://cdn.shopify.com/s/files/1/0435/6934/8763/files/71181524290.pdf
- https://cdn.shopify.com/s/files/1/0448/6758/4162/files/59354792680.pdf
- https://cdn.shopify.com/s/files/1/0438/5079/3122/files/roxapisijanakomim.pdf
- https://cdn.shopify.com/s/files/1/0434/3513/1036/files/couch_to_5k_free.pdf
- https://cdn.shopify.com/s/files/1/0440/6840/5413/files/26489059973.pdf
- https://cdn.shopify.com/s/files/1/0430/5358/0441/files/68571591693.pdf
- https://cdn.shopify.com/s/files/1/0429/5219/6249/files/nuwosabipu.pdf
- https://cdn.shopify.com/s/files/1/0438/2133/4690/files/defense_industrial_base_report_2018.pdf
- https://cdn.shopify.com/s/files/1/0435/3448/3605/files/transverse_abdominis_exercises.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_off00004861.bin` `6a2a982173ec95a332a60c77d1e63bab273ad74111079e91f95f45fdf264bb7f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4861	5436 bytes
`font_01_sfnt_off00005ac5.bin` `ed245c4d324d09cc774517c86a66c55edf3424d0fa038e68775cedad2819e986`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5AC5	10180 bytes

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