PDF malware analysis — malicious · f74bc67360d599ff

MALICIOUS

PDF

52.1 KB Created: 2020-08-19 05:39:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: aede199a4030fd6a41a09381ca4e43bc SHA-1: 289b1b75a4cd8afd5d2c6233874ff36fc6c0b00d SHA-256: f74bc67360d599ffc56df5f3a620e0a0631a20ee12d377bb4980769319bc67a6

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=banded+iron+formation+important', which is also listed as a malicious redirector. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning attempt to distribute malicious content.

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=banded+iron+formation+important
- http://files.shopkoco.com/uploads/1/3/0/9/130969878/nugod-xidakak-xugaxazixerafu-tozamu.pdf
- http://files.dogtownpestcontrol.com/uploads/1/3/1/0/131070230/3381411.pdf
- http://fiwifi.vikingsfc.org/uploads/1/3/0/7/130775818/vidowonugafinutu.pdf
- http://files.thebrooksideinstitute.net/uploads/1/3/0/9/130970003/1209803.pdf
- http://korudu.gafied.com/uploads/1/3/0/7/130739974/tanefoxanunapalimi.pdf
- https://cdn.shopify
- https://cdn.shopify.com/s/files/1/0430/6888/3098/files/like_the_ceiling_can_t_hold_us.pdf
- https://cdn.shopify.com/s/files/1/0430/6888/3097/files/19198406897.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/22650439267.pdf
- https://cdn.shopify.com/s/files/1/0439/9484/1246/files/zomazefeluwilaf.pdf
- https://cdn.shopify.com/s/files/1/0431/6797/3538/files/xapadezofu.pdf
- https://cdn.shopify.com/s/files/1/0437/6359/7466/files/vodilunajunufafot.pdf
- https://cdn.shopify.com/s/files/1/0431/5843/8039/files/2363962254.pdf
- https://cdn.shopify.com/s/files/1/0435/9149/9935/files/1435597461.pdf
- https://cdn.shopify.com/s/files/1/0432/9403/2025/files/nexeros.pdf
- https://cdn.shopify.com/s/files/1/0431/0056/9766/files/58589138961.pdf
- https://cdn.shopify.com/s/files/1/0434/5472/6310/files/75967499250.pdf
- https://cdn.shopify.com/s/files/1/0434/1432/3356/files/14838854583.pdf
- https://cdn.shopify.com/s/files/1/0432/2181/1362/files/85729360966.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_off00008dfa.bin` `dc5fe7f5d62e11c36cfe16b98eb364718d4d7897fa1d2d1c5c48777716844f44`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8DFA	5028 bytes
`font_01_sfnt_off00009ef8.bin` `6979c8b72a4b51e1cc8b7fb086c22be7582dce9bc51624ea514c899cfec95c41`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9EF8	10600 bytes

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