PDF malware analysis — malicious · 4e5df76c3653a66d

MALICIOUS

PDF

57.2 KB Created: 2020-08-02 08:10:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: aefac2a06a47a8b78e234b5793c91386 SHA-1: fc43d9cb1e14191f857f994e11d589347f4cdc2e SHA-256: 4e5df76c3653a66d1341f70caf0e6aaaf9853060cf3f580631f85644595fb856

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, identified as a link farm. One of the primary links, https://ttraff.com/pify?keyword=abrogator+stone+farm, is flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body is heavily obfuscated and appears to be mostly binary data, but the URL is clearly visible within it.

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=abrogator+stone+farm
- http://files.oliviabarryptyoga.com/uploads/1/3/2/6/132682790/2897152.pdf
- http://files.f-y-t-a.com/uploads/1/3/0/8/130814411/vebiluren.pdf
- http://files.stlukeamezionchurch.org/uploads/1/3/1/3/131398428/lozugupufadenijuxa.pdf
- http://files.2tenbooks.com/uploads/1/3/0/7/130738739/pamunasudidizemo.pdf
- https://cdn.shopify.com/s/files/1/0432/5107/3174/files/zipexulafa.pdf
- https://cdn.shopify.com/s/files/1/0430/6518/0321/files/25449337743.pdf
- https://cdn.shopify.com/s/files/1/0438/1586/2434/files/ff12_esper_guide.pdf
- https://cdn.shopify.com/s/files/1/0435/3874/3450/files/katenefumokuf.pdf
- https://cdn.shopify.com/s/files/1/0435/4569/0266/files/telaju.pdf
- https://cdn.shopify.com/s/files/1/0430/8100/7255/files/north_east_ohio_bounding_box.pdf
- https://cdn.shopify.com/s/files/1/0430/6714/6397/files/vepigefoxutemaputaz.pdf
- https://cdn.shopify.com/s/files/1/0435/4277/3914/files/83055797643.pdf
- https://cdn.shopify.com/s/files/1/0439/7400/0798/files/42945036568.pdf
- https://cdn.shopify.com/s/files/1/0433/6179/6248/files/22610882880.pdf
- https://cdn.shopify.com/s/files/1/0431/0876/1764/files/jekatofigimimoluridox.pdf
- https://cdn.shopify.com/s/files/1/0433/7578/8184/files/daroroveruv.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00009662.bin` `2eb484d75bbbbcb86daf985330dd38ccfe73abc9d4d42462f9e260ce5c6de77c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9662	4924 bytes
`font_01_sfnt_off0000a700.bin` `6a3e246428686c5785a04ff0f2536854fe3bfe43111aac02ac71f539f49db56d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA700	10176 bytes
`font_02_sfnt_off0000c9e8.bin` `0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC9E8	4324 bytes

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