PDF malware analysis — malicious · 9bd421606e330043

MALICIOUS

PDF

51.8 KB Created: 2020-08-02 21:57:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b72b3a394ac9dedc111478c6eeceaee9 SHA-1: a184d3642be267a0e1e430472103fda98fb371a9 SHA-256: 9bd421606e330043ca93e65ed9c15b601b65e7616a194f2ee784b05349bd59e9

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains text that appears to be a lure related to a 'young living catalog 2015 pdf'. The presence of numerous external PDF links, many hosted on shopify.com, suggests a link farm or SEO poisoning attempt to drive traffic to malicious sites. The primary malicious IOC is the redirector URL.

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=young+living+catalog+2015+pdf
- http://files.burkettbuilding.com/uploads/1/3/1/1/131164198/gejoxojolowesuwi.pdf
- http://files.blackcanyonpet.com/uploads/1/3/2/7/132712332/6183235.pdf
- http://files.mscfriedman.com/uploads/1/3/0/7/130775084/5263576.pdf
- http://files.centralillinoishydrografx.com/uploads/1/3/0/9/130969984/napexolagirulibajef.pdf
- http://files.bigislandeventrentals.com/uploads/1/3/0/8/130814258/2236c2de5262.pdf
- http://files.bu
- https://cdn.shopify.com/s/files/1/0432/8449/6550/files/46120789027.pdf
- https://cdn.shopify.com/s/files/1/0434/1887/8117/files/zemuj.pdf
- https://cdn.shopify.com/s/files/1/0435/3196/0474/files/71839120859.pdf
- https://cdn.shopify.com/s/files/1/0430/0318/3258/files/67975910748.pdf
- https://cdn.shopify.com/s/files/1/0433/3325/5323/files/74871817123.pdf
- https://cdn.shopify.com/s/files/1/0434/5597/1492/files/4546586840.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/70282461387.pdf
- https://cdn.shopify.com/s/files/1/0427/9504/0924/files/katupokol.pdf
- https://cdn.shopify.com/s/files/1/0430/6750/6837/files/87214834023.pdf
- https://cdn.shopify.com/s/files/1/0430/5934/7618/files/5830768061.pdf
- https://cdn.shopify.com/s/files/1/0431/6214/0840/files/mixulevogafisubured.pdf
- https://cdn.shopify.com/s/files/1/0435/7432/9499/files/4444083848.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_off00008ae3.bin` `57690fc7bab6d25a5311ab383f7dbfe840658cf6fcc71742b0a5bd3a4e005b7e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8AE3	5520 bytes
`font_01_sfnt_off00009dd9.bin` `c017a014c0ddfb1b04a909c0f8c4f4da5d29d970a743b73acacd76ad9336c0e6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9DD9	10588 bytes

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