PDF malware analysis — malicious · 387169a542c2aec4

MALICIOUS

PDF

49.8 KB Created: 2020-08-14 05:11:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a4181e045ca64c25ba8402a0b292d113 SHA-1: a11c2a1ad3b9d6a4b830e88e7c1f06912e62c0cf SHA-256: 387169a542c2aec46830f3a1de6543ccb7242672d815441f6411ebd96c4ed7a4

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=tamil+ultra+hd+movies++2019'. This indicates the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing. The document body, though heavily obfuscated, contains references to movie downloads, reinforcing the lure. The ML classifier also strongly flagged this PDF as malicious.

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/pify?keyword=tamil+ultra+hd+movies++2019
- http://files.zellabarket.com/uploads/1/3/1/3/131379894/6fbd8f6b6344c4.pdf
- http://files.lindberghfoundationstl.com/uploads/1/3/1/1/131164159/bowav.pdf
- http://xoruzonuz.a1moments.com.au/uploads/1/3/1/6/131606490/8210189.pdf
- http://files.susanadams.co.nz/uploads/1/3/1/4/131437249/9594412.pdf
- http://towagod.hasanjahid.com/uploads/1/3/1/6/131606289/gamasuvonenupoxi.pdf
- https://cdn.shopify.com/s/files/1/0431/0532/1109/files/27529465886.pdf
- https://cdn.shopify.com/s/files/1/0434/6842/3330/files/wunobuginuxejitok.pdf
- https://cdn.shopify.com/s/files/1/0449/7106/5503/files/hp_arcsight_tutorial.pdf
- https://cdn.shopify.com/s/files/1/0434/3624/5142/files/29055892035.pdf
- https://cdn.shopify.com/s/files/1/0437/3122/2677/files/additional_mathematics_pure_and_applied_talbert_download.pdf
- https://cdn.shopify.com/s/files/1/0428/2331/9715/files/33771649107.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/67572949107.pdf
- https://cdn.shopify.com/s/files/1/0438/7209/2315/files/86724995840.pdf
- https://cdn.shopify.com/s/files/1/0429/7896/7703/files/92977088142.pdf
- https://cdn.shopify.com/s/files/1/0430/0577/1927/files/jekefinabefebanakivi.pdf
- https://cdn.shopify.com/s/files/1/0431/6191/1458/files/vamaravotivadavinu.pdf
- https://cdn.shopify.com/s/files/1/0428/7909/0855/files/20217795483.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_off00007e19.bin` `34c72339829650d6cc9f18d94dadfcf6e50462198c5f6d90c8948b685e2beb57`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7E19	5556 bytes
`font_01_sfnt_off000090dc.bin` `bce6a619227a97a6cabb78f9993400362e902c06b4aa2e090a77758dec277486`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x90DC	13004 bytes

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