PDF malware analysis — malicious · b075e45b3ccaedb9

MALICIOUS

PDF

52.7 KB Created: 2020-07-28 03:19:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: fed8b2b4b607207db9383fb9b11ca1d6 SHA-1: 751281c5e1e8ccccdf64ff8294c00367f567cea8 SHA-256: b075e45b3ccaedb91ece233edacb3cb3dcde36b2047ecb42aff48e4405c0112f

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, with a critical heuristic firing for PDF_SEO_LINK_FARM indicating a link farm. One of the primary links points to a known malicious redirector. The document body is heavily obfuscated and appears to be largely unreadable, but the presence of the link farm and the malicious redirector strongly suggests an attempt to lure users to malicious infrastructure.

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=eye+makeup+brushes+guide+with+pictures
- http://files.vontoba.com/uploads/1/3/1/4/131438741/zipunux.pdf
- http://files.didymus.org/uploads/1/3/0/8/130873787/8319775.pdf
- http://files.joshuaekuether.com/uploads/1/3/1/3/131380687/zisoweremof-pewivake-tuzegejix.pdf
- http://files.acornhomeandgardenservices.com/uploads/1/3/1/4/131438682/41d3aa.pdf
- http://files.insourceaccountinginc.com/uploads/1/3/1/8/131857916/0245d96fd07bc3.pdf
- https://cdn.shopify.com/s/files/1/0430/6488/5402/files/sidakadigadotazuj.pdf
- https://cdn.shopify.com/s/files/1/0437/2329/2822/files/nuwebubifepi.pdf
- https://cdn.shopify.com/s/files/1/0435/3720/3364/files/jisimorifufapafujamexe.pdf
- https://cdn.shopify.com/s/files/1/0435/4693/5460/files/sazulezobemu.pdf
- https://cdn.shopify.com/s/files/1/0430/5505/5002/files/sibex.pdf
- https://cdn.shopify.com/s/files/1/0433/9613/7111/files/27505363123.pdf
- https://cdn.shopify.com/s/files/1/0432/7522/3200/files/sowitekamoji.pdf
- https://cdn.shopify.com/s/files/1/0429/9217/3217/files/22778919045.pdf
- https://cdn.shopify.com/s/files/1/0431/3802/3581/files/84169839389.pdf
- https://cdn.shopify.com/s/files/1/0430/3319/8745/files/kedojerowoxi.pdf
- https://cdn.shopify.com/s/files/1/0431/6318/9412/files/vosijufemovozivunivaxijef.pdf
- https://cdn.shopify.com/s/files/1/0433/7070/9142/files/remumuxiwujaxunejekexol.pdf
- https://cdn.shopify.com/s/files/1/0430/0845/8905/files/sutafominu.pdf
- https://cdn.shopify.com/s/files/1/0433/7857/3464/files/99761113428.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_off0000901d.bin` `a5b7d056967bcf1a617980afc3802e7400ba2d27941ded404cfe1a89ab77a58c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x901D	5476 bytes
`font_01_sfnt_off0000a2d0.bin` `67314569457a61954162aff772033a8669fbcc9f5e98a4843dd657a5d47a1d10`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA2D0	10032 bytes

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