PDF malware analysis — malicious · 545d6bc1eb9e0764

MALICIOUS

PDF

56.5 KB Created: 2020-08-02 10:18:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 0251f29d9962d7f7c889f403ccb60e61 SHA-1: 67db87a8fd8fc1dbfa176ad0d8f4e8145e94ff66 SHA-256: 545d6bc1eb9e0764477959455be5f33622be06d3c58998d187beeea39ca39cd8

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged as malicious due to a high number of embedded links, many of which point to a redirector service. The document body, though partially corrupted, contains the URL 'https://ttraff.cc/pify?keyword=what+is+altrow', which is also listed as a malicious redirector. This suggests the document's primary purpose is to lure users to malicious sites.

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.cc/pify?keyword=what+is+altrow
- http://files.ellemaverickevents.com/uploads/1/3/0/7/130739970/497588.pdf
- http://files.apriloliviaroskos.com/uploads/1/3/0/7/130776343/5590168.pdf
- http://files.frontrangetheatre.org/uploads/1/3/1/3/131384432/d0280.pdf
- https://cdn.shopify.com/s/files/1/0436/1935/2740/files/mh37w-_n47xk-_v7xm9-_c7227-_gcqg9.pdf
- https://cdn.shopify.com/s/files/1/0435/7737/6936/files/14291293429.pdf
- https://cdn.shopify.com/s/files/1/0434/3883/3816/files/46661134087.pdf
- https://cdn.shopify.com/s/files/1/0432/8544/6822/files/nizonogikotabaloregeletel.pdf
- https://cdn.shopify.com/s/files/1/0437/9780/7265/files/35295257770.pdf
- https://cdn.shopify.com/s/files/1/0430/5348/2138/files/gusasuber.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/negonarufefozosaburesid.pdf
- https://cdn.shopify.com/s/files/1/0440/8963/9077/files/88985113.pdf
- https://cdn.shopify.com/s/files/1/0432/5025/3992/files/70119636727.pdf
- https://cdn.shopify.com/s/files/1/0429/9954/6010/files/13254386602.pdf
- https://cdn.shopify.com/s/files/1/0430/2897/1674/files/43710394396.pdf
- https://cdn.shopify.com/s/files/1/0430/2451/5235/files/59260103847.pdf
- https://cdn.shopify.com/s/files/1/0432/2800/4507/files/38465379808.pdf
- https://cdn.shopify.com/s/files/1/0438/8497/0152/files/bosumadekiza.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_off000093d2.bin` `465d7f8d294ffae60b053c402ec0435d4a68634949a51a8241377b27e4b1acd7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x93D2	4444 bytes
`font_01_sfnt_off0000a2fb.bin` `400f81469ce18ab7b48bb93a60b0638593f3fc10b64a32e6f98a880b5f28b9e1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA2FB	10524 bytes
`font_02_sfnt_off0000c6f3.bin` `1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC6F3	4324 bytes

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