PDF malware analysis — malicious · a806eb12dbc63a1f

MALICIOUS

PDF

55.1 KB Created: 2020-08-24 02:57:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a2ccd83f107e32cc556c8ab6afacd2c7 SHA-1: 02491c5b7c8ce9fe03282df49e802cbf4ce69b8d SHA-256: a806eb12dbc63a1f02c9cadb7125e151c00492220d4bc716cdc616e2903f537b

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a significant number of embedded links, many of which point to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, contains a URL that appears to be part of this link farm. This suggests the primary attack pattern is to lure users through a link farm to malicious content. No scripts were extracted, limiting further analysis of the payload.

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=battery+doctor+latest+apk
- http://files.icellw.com/uploads/1/3/1/4/131406140/baradet.pdf
- http://panigat.oceansidecove.net/uploads/1/3/1/4/131453060/59305cbc3d4cc7.pdf
- http://files.theautistix.com/uploads/1/3/0/7/130740127/liregozomukofa.pdf
- https://cdn.shopify.com/s/files/1/0437/6179/5230/files/formwork_carpenter_camp_jobs_canada.pdf
- https://cdn.shopify.com/s/files/1/0430/6056/0025/files/5828112061.pdf
- https://cdn.shopify.com/s/files/1/0431/4526/5318/files/loxina.pdf
- https://cdn.shopify.com/s/files/1/0437/5475/0106/files/81784188782.pdf
- https://cdn.shopify.com/s/files/1/0432/3095/3627/files/logugajegi.pdf
- https://cdn.shopify.com/s/files/1/0435/5253/8787/files/sotemepatakimetaw.pdf
- https://cdn.shopify.com/s/files/1/0434/7451/8178/files/20251195427.pdf
- https://cdn.shopify.com/s/files/1/0432/8236/6629/files/43886506346.pdf
- https://cdn.shopify.com/s/files/1/0434/0200/2584/files/38828737998.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 5

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006410.bin` `bd9c8a5ef5c7c6c5bcc0256f706e81f7c4440694fb0a62550b141f7bc013c8ad`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6410	4916 bytes
`font_01_sfnt_off000074e4.bin` `e9f668ce11f9fd16e8103d15cbc36205b71a5213dcc32721ea3f5e0689804827`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x74E4	4572 bytes
`font_02_sfnt_off0000865e.bin` `e4f1b430d3c196c0e950097f7f41e6e872483423f6ed71aa50beb331cfd71a29`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x865E	10908 bytes
`font_03_sfnt_off0000aba9.bin` `145a98d2f60efd994bbcb4cebefe096a3a0ada86ba18ffc3f39073695cedf924`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xABA9	16232 bytes
`font_04_sfnt_off0000c0b3.bin` `1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC0B3	4324 bytes

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