PDF malware analysis — malicious · d07f8fa10495f84f

MALICIOUS

PDF

46.0 KB Created: 2020-07-26 03:42:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 98d9ab5cd4430bbb462a8ab23a4cafc0 SHA-1: 802126a47e0228793b526ed6d58c17007fdad89a SHA-256: d07f8fa10495f84f3cf3db600a0ae7b9b5f263b27d29ce156fb62f6a3435bbd5

150 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF contains a malicious redirector link disguised as a guide for imputation credit accounts. It also features a large number of external PDF links, likely for SEO manipulation to increase visibility. The ML classifier strongly indicated maliciousness, and the embedded URL points to known malicious infrastructure.

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=imputation+credit+account+guide+nz
- http://files.k9cooperation.com/uploads/1/3/1/1/131163747/laxej-nesom-xitamomupagad-sufamesapopume.pdf
- http://files.landmark-mgmt.com/uploads/1/3/2/7/132712040/7252967.pdf
- http://files.epidesignlab.com/uploads/1/3/0/8/130813922/xizisutixesul-saxovirepawozaw-sarapiwidotenaz.pdf
- http://files.offthehookkiteboarding.com/uploads/1/3/0/7/130775536/dinuvas.pdf
- http://files.monkeesconcerts.com/uploads/1/3/2/7/132741382/muvozuzibi.pdf
- http://files.epidesignlab.com/uploads/
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gaxasukazojolivuf.pdf
- https://cdn.shopify.com/s/files/1/0431/4421/6730/files/kewademafikig.pdf
- https://cdn.shopify.com/s/files/1/0433/9607/1589/files/pelaxixofesesuzosej.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/66541571973.pdf
- https://cdn.shopify.com/s/files/1/0431/5797/9304/files/sojenenibavipozod.pdf
- https://cdn.shopify.com/s/files/1/0432/0811/4340/files/66801787661.pdf
- https://cdn.shopify.com/s/files/1/0431/7803/3303/files/10653959390.pdf
- https://cdn.shopify.com/s/files/1/0430/1455/3763/files/potupifeninozofigami.pdf
- https://cdn.shopify.com/s/files/1/0433/6353/2951/files/8776886850.pdf
- https://cdn.shopify.com/s/files/1/0437/9095/8749/files/jasadapetanogobufubi.pdf
- https://cdn.shopify.com/s/files/1/0430/8015/5290/files/riger.pdf
- https://cdn.shopify.com/s/files/1/0440/4409/1557/files/dijuxeloragiveno.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_off000074a5.bin` `d723d0c266783a71f4472f80af48b888fcb7ade66a248b968e893560ba499fde`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x74A5	5052 bytes
`font_01_sfnt_off000085b1.bin` `66da05f0b4b0ea098569de2f7fce585399402b8e8b2679f8435cec7c37fbfc11`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x85B1	10804 bytes

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