PDF malware analysis — malicious · e9138ee2e6b5ba38

MALICIOUS

PDF

50.8 KB Created: 2020-07-29 07:57:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 76005b572bc92a5dd1ad591e1a5294ae SHA-1: 8ab8e17e800b2c47239b4c98e82b8c2b591fdfe4 SHA-256: e9138ee2e6b5ba384585d6b5763d6fb1490a32ae036a649460f92f9559fbf17f

120 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains a large number of embedded links, identified as a 'PDF_SEO_LINK_FARM' heuristic. One of these links, 'https://ttraff.ru/pify?keyword=grotesque+guardians+guide+osrs', is flagged as a 'PDF_MALICIOUS_REDIRECTOR_LINK'. The document body, though heavily obfuscated, contains text related to 'Grotesque guardians guide osrs', suggesting a lure to attract users interested in this topic. The combination of link farming and a malicious redirector indicates an attempt to drive traffic to potentially harmful sites.

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=grotesque+guardians+guide+osrs
- http://files.veglier.com/uploads/1/3/2/6/132683001/jasaxurarefigos_tirabalovu_nexokinuxes_zikili.pdf
- http://files.bsbrew.net/uploads/1/3/2/7/132740618/zakate.pdf
- http://files.lotusloveonline.com/uploads/1/3/1/4/131438079/d1f7d6.pdf
- http://files.lotusloveon
- https://cdn.shopify.com/s/files/1/0430/2677/6227/files/rakuvotojoxazasero.pdf
- https://cdn.shopify.com/s/files/1/0430/0419/9075/files/vakobamisadofusivej.pdf
- https://cdn.shopify.com/s/files/1/0428/0975/3767/files/71006668622.pdf
- https://cdn.shopify.com/s/files/1/0428/1594/6911/files/pibototukugusamiw.pdf
- https://cdn.shopify.com/s/files/1/0428/2348/3548/files/67728225141.pdf
- https://cdn.shopify.com/s/files/1/0431/2127/9138/files/18565278895.pdf
- https://cdn.shopify.com/s/files/1/0428/4815/7859/files/30302791156.pdf
- https://cdn.shopify.com/s/files/1/0429/6779/3820/files/13068506459.pdf
- https://cdn.shopify.com/s/files/1/0428/8105/6935/files/xoxosatorowigenabaw.pdf
- https://cdn.shopify.com/s/files/1/0433/6589/2245/files/livavasizu.pdf
- https://cdn.shopify.com/s/files/1/0430/6649/1042/files/6534560684.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/5676577217.pdf
- https://cdn.shopify.com/s/files/1/0427/9074/8316/files/fejekikaxudanazexobege.pdf
- https://cdn.shopify.com/s/files/1/0429/3722/1276/files/badunakurimiveje.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_off00008952.bin` `30cd59f262939778d5d5ee70ab89e4ddc5a27349013c58d73ee15a59e27505ed`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8952	5000 bytes
`font_01_sfnt_off00009a5b.bin` `b255137a17429c1dabfcd977f007ade798c5f0a21729a49f70b6818539bdf96f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9A5B	10552 bytes

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