PDF malware analysis — malicious · b8f283127f000282

MALICIOUS

PDF

48.0 KB Created: 2020-08-28 13:46:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: adc660e12e2151d8bd44e02336b3a76c SHA-1: dbf6949bbf202e991f88328f2a55a0ee31ac92cc SHA-256: b8f283127f000282c89117a89761c59b5ee61e1bdceb5babb5f59158e82b554c

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the target URL. The presence of numerous external links suggests a link farm or SEO poisoning tactic to distribute malicious 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.me/pify?keyword=moogle+beast+tribe+ffxiv
- http://files.diazcounseling.com/uploads/1/3/0/7/130740589/xazexor.pdf
- http://files.recoach.us/uploads/1/3/1/6/131637553/lixax.pdf
- http://files.tomsbeachhouserentals.com/uploads/1/3/1/3/131381078/4ce810163bffc.pdf
- https://cdn.shopify.com/s/files/1/0432/6418/0390/files/angiogenesis_adalah.pdf
- https://cdn.shopify.com/s/files/1/0431/8180/1629/files/84512078302.pdf
- https://cdn.shopify.com/s/files/1/0429/6792/4899/files/50937754325.pdf
- https://cdn.shopify.com/s/files/1/0433/9168/0673/files/bokenobinonixekafezudawe.pdf
- https://cdn.shopify.com/s/files/1/0433/6913/6280/files/wisegedilinobusawenalebuz.pdf
- https://cdn.shopify.com/s/files/1/0435/3510/6203/files/10368673579.pdf
- https://cdn.shopify.com/s/files/1/0429/4891/9450/files/cours_de_francais_niveau_debutant.pdf
- https://cdn.shopify.com/s/files/1/0431/4251/2802/files/93315353006.pdf
- https://cdn.shopify.com/s/files/1/0437/3846/4417/files/30973282600.pdf
- https://cdn.shopify.com/s/files/1/0432/8685/5840/files/4856697606.pdf
- https://cdn.shopify.com/s/files/1/0440/0090/3318/files/kabal.pdf
- https://cdn.shopify.com/s/files/1/0434/8595/4198/files/97614139210.pdf
- https://cdn.shopify.com/s/files/1/0435/2750/4024/files/dikadegasudalodagigob.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/
- https://cdn.shopify.com/s/files/1/0437/3846/

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006555.bin` `9c80658c24c3523777b63894cc3e3edfd5e4d99b382836408e7032f837411972`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6555	4892 bytes
`font_01_sfnt_off0000761e.bin` `c293e2c93573dabdd2a6685df6379c9f79791bad1c304b3e6f1066adff6665ae`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x761E	15136 bytes
`font_02_sfnt_off0000a4e6.bin` `b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA4E6	4324 bytes

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