PDF malware analysis — malicious · 3de38769cd8bb69e

MALICIOUS

PDF

50.6 KB Created: 2020-08-20 09:32:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 55c9e92e010c6dfc8886c29ba91336d8 SHA-1: 945971aedce05b9afe2bb9a306abc9fb37f8671d SHA-256: 3de38769cd8bb69e7d0b3a54b2f129bd782d2c56c89fcf34db0208997e3bc254

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.ru'. The document body, though heavily obfuscated, also contains this URL and numerous other links, many hosted on Shopify, suggesting a link farm or SEO poisoning attempt. The primary malicious URL is used to redirect users, likely to a phishing or malware distribution site.

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=ap+psychology+unit+4+test+pdf
- http://wewuk.polizzigenealogy.com/uploads/1/3/2/6/132682137/giwobu.pdf
- http://tumudume.stewartvillesportsmansclub.com/uploads/1/3/2/8/132814930/889035518.pdf
- http://files.trianglebiotechtuesday.com/uploads/1/3/1/6/131606756/8291726.pdf
- https://cdn.shopify.com/s/files/1/0431/5788/0996/files/avakin_life_cheats.pdf
- https://cdn.shopify.com/s/files/1/0438/5452/8677/files/hr_executive_interview_questions_and_answers_for_freshers.pdf
- https://cdn.shopify.com/s/files/1/0435/5057/2695/files/24757692862.pdf
- https://cdn.shopify.com/s/files/1/0430/6426/2818/files/xikugixil.pdf
- https://cdn.shopify.com/s/files/1/0432/4399/5298/files/sibulupepapubuxaxamo.pdf
- https://cdn.shopify.com/s/files/1/0429/8362/0767/files/fudema.pdf
- https://cdn.shopify.com/s/files/1/0432/8767/5036/files/12937760580.pdf
- https://cdn.shopify.com/s/files/1/0431/7783/6703/files/js_math_random.pdf
- https://cdn.shopify.com/s/files/1/0430/0711/5423/files/lelug.pdf
- https://cdn.shopify.com/s/files/1/0435/7016/7967/files/static_vs_non_static_java.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tizerosotusalasebix.pdf
- https://cdn.shopify.com/s/files/1/0429/5370/3580/files/arere_avala_naguva_kannada_song.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006111.bin` `d1d1b53ca7e2d32b9beabd32d46df711f0637d52b8ab5e56a98465dacac569a3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6111	5172 bytes
`font_01_sfnt_off000072ac.bin` `b0bb388c16e23f31e45e86a53a2fc514d88be2a4a09cb1cf329ebe7c412b9fa2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x72AC	7624 bytes
`font_02_sfnt_off00008c60.bin` `51bf3ab425c42784a678ab5afc49b25a330e17ad0a1988bd8a1eb6a24305c342`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C60	10060 bytes
`font_03_sfnt_off0000aec9.bin` `0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAEC9	4324 bytes

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