PDF malware analysis — malicious · 2309a76c1720e27f

MALICIOUS

PDF

52.6 KB Created: 2020-07-30 19:36:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 7dda84ec2ba95fd22226e6a2bafd66cd SHA-1: 1de2d1446366de4e901b0a671629b393f6e02575 SHA-256: 2309a76c1720e27f0f210069c8ffbd33a38e950ad1bda0ceae61cfddc99fbcf3

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'book pdf download', suggesting a lure. The primary malicious URL identified is https://ttraff.ru/pify?keyword=baps+bal+sabha+book+pdf+download, which likely serves as a gateway to further malicious content.

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=baps+bal+sabha+book+pdf+download
- http://files.just5minutesaday.com/uploads/1/3/0/8/130874250/1b9966318dc7.pdf
- http://files.obxchirothrive.com/uploads/1/3/1/6/131606094/gutedinaxada-fedovobe.pdf
- http://files.vickycavanagh-hodge.com/uploads/1/3/1/4/131452740/f6950613.pdf
- http://files.reconcilingcircle.com/uploads/1/3/0/7/130740553/dojom-vizigerodu-mizetifa-fixut.pdf
- https://cdn.shopify.com/s/files/1/0431/8475/0747/files/fobuwelegivawurifip.pdf
- https://cdn.shopify.com/s/files/1/0433/2588/2518/files/89731778430.pdf
- https://cdn.shopify.com/s/files/1/0430/8749/5321/files/8335903124.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/7997453156.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71409998288.pdf
- https://cdn.shopify.com/s/files/1/0435/8393/0527/files/33680839003.pdf
- https://cdn.shopify.com/s/files/1/0428/8380/9439/files/gurutixeladoriseki.pdf
- https://cdn.shopify.com/s/files/1/0428/1381/6995/files/gopuxikuwawizo.pdf
- https://cdn.shopify.com/s/files/1/0433/8964/9054/files/30801291763.pdf
- https://cdn.shopify.com/s/files/1/0430/9814/4932/files/sebezegusogowagi.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/5555796470.pdf
- https://cdn.shopify.com/s/files/1/0431/5339/1765/files/30397522667.pdf
- https://cdn.shopify.com/s/files/1/0430/9703/0805/files/38034500943.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/87899810879.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_off0000909a.bin` `03d99292ffafb04c9bbfc45103ae22c95231c4f8df1729906413e404e38e185c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x909A	4920 bytes
`font_01_sfnt_off0000a146.bin` `a538d588472e66947af757588fb36093386fd8d7ddca17b35acab2493ce34e44`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA146	10596 bytes

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