PDF malware analysis — malicious · ad2195b39f55f073

MALICIOUS

PDF

44.3 KB Created: 2020-08-21 22:48:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 01a0015172647aafde8122079819cea1 SHA-1: d6eab2d2c67f6dac52ac532756cbd221247117a5 SHA-256: ad2195b39f55f073b92cc216c11ffbd9b5ac4e8d7800dc80b64030e12b5dc188

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be part of the lure. The heuristic firings indicate a malicious redirector and a link farm, suggesting the primary goal is to drive traffic to malicious infrastructure. No scripts were extracted from this sample.

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.ru/pify?keyword=kyoto+temple+guide
- http://jixeteju.schnauzersga.com/uploads/1/3/1/6/131606127/7de3fdd22.pdf
- http://files.englishlanguageeditors.com/uploads/1/3/0/7/130739746/bufene.pdf
- http://rirepelu.edgarsfurniture.net/uploads/1/3/1/8/131871991/8533923.pdf
- http://juramodin.shrevewoodpta.org/uploads/1/3/0/7/130739723/1488054.pdf
- http://files.schummwords.com/uploads/1/3/2/6/132695887/wojedudurele-mivux-litesonidebivun.pdf
- https://cdn.shopify.com/s/files/1/0438/5269/3654/files/kazefufasumimulisa.pdf
- https://cdn.shopify.com/s/files/1/0437/7267/4209/files/27092062093.pdf
- https://cdn.shopify.com/s/files/1/0434/1864/8732/files/98777973681.pdf
- https://cdn.shopify.com/s/files/1/0438/2287/4781/files/51351144287.pdf
- https://cdn.shopify.com/s/files/1/0433/3663/0422/files/50538934718.pdf
- https://cdn.shopify.com/s/files/1/0449/2728/7451/files/botany_for_degree_students_by_ac_dutta.pdf
- https://cdn.shopify.com/s/files/1/0433/1572/4456/files/jimax.pdf
- https://cdn.shopify.com/s/files/1/0431/9661/2768/files/13362861837.pdf
- https://cdn.shopify.com/s/files/1/0429/3361/6803/files/tilaxurunukabonudabova.pdf
- https://cdn.shopify.com/s/files/1/0431/0741/8273/files/11841696243.pdf
- https://cdn.shopify.com/s/files/1/0435/4359/3109/files/free_assured_shorthold_tenancy_agreement_template_scotland.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_off0000648a.bin` `71ac5b22458b14a9783557f43f54771c0b84923cacd4a646712b6475b6ab2a40`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x648A	4644 bytes
`font_01_sfnt_off00007473.bin` `df262035883a508a854333415d252307c26c48fdf1086662383a5d148b93df9b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7473	9940 bytes
`font_02_sfnt_off0000966d.bin` `b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x966D	4324 bytes

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