PDF malware analysis — malicious · c21f4c3672ad1ce4

MALICIOUS

PDF

43.3 KB Created: 2020-08-14 08:44:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 91d4cfa8850c4607e7a2d7dff5c09f98 SHA-1: 88cd87cf9ca37077ef86304daa7003f9587fdb0a SHA-256: c21f4c3672ad1ce43cd55f48fcb1b66b4d1c1293c28753c537b692e5ede431ca

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.001 Malicious Link

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One critical heuristic firing indicates a malicious redirector link to 'ttraff.com'. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for phishing or malware distribution. 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.com/pify?keyword=pure+research+vs+applied+research+pdf
- http://files.negativetopositivefilms.com/uploads/1/3/2/6/132695701/8278442.pdf
- http://files.berniceejames.com/uploads/1/3/0/7/130740571/e3ad010f506a9e.pdf
- http://tazule.privatestachebeardoil.com/uploads/1/3/2/7/132740541/3925523.pdf
- http://mojepij.emilyisaacswellness.com/uploads/1/3/1/3/131383483/ba47ac8b793.pdf
- https://cdn.shopify.com/s/files/1/0440/4881/0149/files/nagipusesufagamu.pdf
- https://cdn.shopify.com/s/files/1/0431/0263/4148/files/sovuxa.pdf
- https://cdn.shopify.com/s/files/1/0444/8750/8135/files/assignment_abroad_times_newspaper.pdf
- https://cdn.shopify.com/s/files/1/0440/7649/9096/files/matplotlib_to.pdf
- https://cdn.shopify.com/s/files/1/0434/1802/6142/files/85863408221.pdf
- https://cdn.shopify.com/s/files/1/0431/8255/5300/files/lol_esports_schedule.pdf
- https://cdn.shopify.com/s/files/1/0434/1566/6840/files/xaladuxuruvi.pdf
- https://cdn.shopify.com/s/files/1/0448/1345/1430/files/ukulele_worship_songs.pdf
- https://cdn.shopify.com/s/files/1/0428/9029/7503/files/pajevi.pdf
- https://cdn.shopify.com/s/files/1/0431/9982/4032/files/48989234141.pdf
- https://cdn.shopify.com/s/files/1/0443/3071/3244/files/bipolar_disorder_articles.pdf
- https://cdn.shopify.com/s/files/1/0434/4807/4405/files/80609430450.pdf
- https://cdn.shopify.com/s/files/1/0436/2246/5699/files/68293937464.pdf
- https://cdn.shopify.com/s/files/1/0430/8451/3440/files/deremamelajexixokinu.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/
- https://cdn.shopify.com/s/files/1/0434/1566/6840

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006a8a.bin` `8c23271c24b4f80c239583b3a1e9f7752802c767666222de27d8497cb31f0f42`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6A8A	5304 bytes
`font_01_sfnt_off00007c96.bin` `da56f115b75a65cee3649133d9f885b31f17524368b41b39b7c7c3e9b43287ed`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7C96	10344 bytes

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