PDF malware analysis — malicious · a437b24c0967f5f8

MALICIOUS

PDF

41.5 KB Created: 2020-08-23 04:05:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b0c0cbfded820aaefca73c9090799e65 SHA-1: 53172983183dfd3937312efd1629bcd11ebf42b6 SHA-256: a437b24c0967f5f801bd9e102dec33695a51d38a7a1d299f9150fdb6b084160c

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a significant number of embedded links, with one heuristic specifically identifying it as a PDF link farm. The primary malicious URL, https://ttraff.ru/pify?keyword=premabhishekam+film+songs+free, is flagged as a malicious redirector. The document body contains garbled text and embedded URLs, suggesting it is not intended for legitimate user consumption but rather for malicious purposes such as SEO manipulation or redirecting users to harmful content. No scripts were extracted from this sample.

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.ru/pify?keyword=premabhishekam+film+songs+free
- http://bedivupak.ihopeyourlife.com/uploads/1/3/1/4/131438474/fefiwize_lipunowupid_sizoliz_bigese.pdf
- http://files.houseofinferno.com/uploads/1/3/1/1/131164312/2909270.pdf
- http://files.woodsideschool.org/uploads/1/3/0/7/130776821/xumawesujiwax-bubuxarojesom-werigelixoda.pdf
- http://zinet.nic-hunter.com/uploads/1/3/1/0/131070841/5601128.pdf
- http://wixexe.trupbsc.ca/uploads/1/3/1/0/131069869/4468639.pdf
- https://cdn.shopify.com/s/files/1/0437/4714/7928/files/art_and_the_christian_apocrypha.pdf
- https://cdn.shopify.com/s/files/1/0432/9229/5333/files/bomafi.pdf
- https://cdn.shopify.com/s/files/1/0434/4925/4041/files/36215171242.pdf
- https://cdn.shopify.com/s/files/1/0431/8153/9488/files/37821739280.pdf
- https://cdn.shopify.com/s/files/1/0435/6833/2959/files/sakujidipa.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/34707652888.pdf
- https://cdn.shopify.com/s/files/1/0430/7710/7865/files/kudezarut.pdf
- https://cdn.shopify.com/s/files/1/0430/4257/0402/files/22817715838.pdf
- https://cdn.shopify.com/s/files/1/0437/2476/7400/files/geometrical_interpretation_of_integration.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81108552740.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_off00005517.bin` `c096bceb4f574808172200305b509fd31c073c21bd2e69556df81793fb998c69`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5517	5092 bytes
`font_01_sfnt_off0000662d.bin` `e01d810056cd32b295597a36ee39a3810f0073a01332e4acbc9904147751c5d2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x662D	11004 bytes
`font_02_sfnt_off00008bae.bin` `4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8BAE	4324 bytes

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