PDF malware analysis — malicious · b2981e7ed9eadbcc

MALICIOUS

PDF

70.5 KB Created: 2020-08-14 02:13:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 974f8b93acc8520b72e31034030b1ab5 SHA-1: 01da74fe91805b7c082c4487dc6e89dd937722b0 SHA-256: b2981e7ed9eadbccb6aa309b57aff57bcf2b2a42f14b36c572f8776d77957762

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.001 PowerShell T1204.001 Malicious Link

The PDF contains a high number of external links, many pointing to Shopify domains, suggesting an attempt at SEO poisoning or link farming. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.com/wb?keyword=iranian%20languages%20pdf'. The ML classifier also strongly indicated maliciousness. The document body is heavily obfuscated but contains the redirector URL, reinforcing the malicious intent.

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.com/wb?keyword=iranian%20languages%20pdf
- http://files.michaeljamesvocals.com/uploads/1/3/1/3/131379111/nofikab.pdf
- http://files.vickijansma.com/uploads/1/3/1/4/131453276/xopidotisema.pdf
- http://files.gaslogbbq.com/uploads/1/3/1/3/131382841/lilivelibovem.pdf
- https://cdn.shopify.com/s/files/1/0431/0636/9703/files/prizerebel_hack_points_generator_download.pdf
- https://cdn.shopify.com/s/files/1/0430/2517/0595/files/gekujokebofo.pdf
- https://cdn.shopify.com/s/files/1/0437/8879/6065/files/bebebokewabotefudawusu.pdf
- https://cdn.shopify.com/s/files/1/0432/2679/2093/files/71221555535.pdf
- https://cdn.shopify.com/s/files/1/0432/5398/9534/files/49109123911.pdf
- https://cdn.shopify.com/s/files/1/0433/8089/9989/files/92155036652.pdf
- https://cdn.shopify.com/s/files/1/0437/3377/8597/files/36816163453.pdf
- https://cdn.shopify.com/s/files/1/0431/9110/7752/files/widegugopekaviwusitutuvo.pdf
- https://cdn.shopify.com/s/files/1/0433/9400/7191/files/neopets_cheap_books.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/66541571973.pdf
- https://cdn.shopify.com/s/files/1/0437/7794/9848/files/pusatutelewavumuku.pdf
- https://cdn.shopify.com/s/files/1/0437/9122/0887/files/magewidavom.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_off0000ad3c.bin` `d78d5e9c37c8f3a41d060e46df9ef29e9eb63d88d2b8322cc6b13c65384a4af3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAD3C	5148 bytes
`font_01_sfnt_off0000bec7.bin` `1c5364f4b25b68f56c5da885e5fc25ecfcc07c5bb9d1b643a7f3cf99b603c947`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBEC7	19836 bytes
`font_02_sfnt_off0000f67f.bin` `84e20c81c303cda4dd5c9dd3aad0018ff6a4f1417ad8af6fb4a41711a0ca8b47`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF67F	16320 bytes

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