PDF malware analysis — malicious · e8646c1b428bc810

MALICIOUS

PDF

76.3 KB Created: 2021-04-01 15:04:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 683f1b4af63d1f9ea851edcdadb6fccd SHA-1: 9d41a0d1cfa8bcaf0f2a279fdc6f2d363c41ffdb SHA-256: e8646c1b428bc8102394a4e015720dc559a9d38443151d77379da6c1ebd428dc

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links, many pointing to PDF files hosted on file-sharing services, indicating a link farm or distribution network. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and numerous external links are indicative of techniques used to redirect users to malicious sites.

Machine Learning

Nyx PDF Classifier malicious score 0.7733

Heuristics 4

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.
ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
External URI info PDF_URI

PDF contains an external URL action
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://nipisod.ru/award?keyword=how+to+markup+pdf+on+ipad+pro
- https://pejudipevunasu.weebly.com/uploads/1/3/5/3/135351173/4125612.pdf
- https://cdn.sqhk.co/dukoredod/oatjhhi/69690402766.pdf
- https://buxenawemino.weebly.com/uploads/1/3/4/5/134581697/kizubuwovonupeti.pdf
- https://cdn.sqhk.co/gumakulex/nvyv9UH/books_of_the_bible_song.pdf
- http://xiwotafajiloluf.22web.org/araba_yar_oyunu_indir_apk.pdf
- https://mazogerivajusem.weebly.com/uploads/1/3/4/3/134341978/1351829.pdf
- https://nanuvofekoredam.weebly.com/uploads/1/3/5/3/135385966/zoxuw-zutedegitafilo.pdf
- https://xuwosanilenerev.weebly.com/uploads/1/3/4/9/134900173/2314392.pdf
- https://wifovusu.weebly.com/uploads/1/3/4/3/134312249/199eeaf61c39c.pdf
- http://jaxifas.getenjoyment.net/22670768932.pdf
- https://wepebajaka.weebly.com/uploads/1/3/4/5/134588919/gojijatof-pezusul-sotovilanafepi.pdf
- https://nimuneroz.weebly.com/uploads/1/3/1/4/131407882/degofozuvolole.pdf
- https://wogijelagorezu.weebly.com/uploads/1/3/4/0/134096035/7937197.pdf
- http://pegujanixur.22web.org/63657912839.pdf
- https://zobegutibeg.weebly.com/uploads/1/3/4/9/134902349/loripojoful.pdf
- https://cdn.sqhk.co/zezinojox/jfDxaia/89748024124.pdf
- https://gotanizanoga.weebly.com/uploads/1/3/5/3/135332446/faniw.pdf
- https://cdn.sqhk.co/tamaladafa/Qjjgjij/stick_cricket_premier_league_mod_apk_download.pdf
- http://sokepazetovul.22web.org/jeep_wrangler_spare_parts_usa.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://zogadawedalifap.onlinewebshop.net/pewejujuvegipifomos.pdf
- http://tunawibiga.rf.gd/87119158349.pdf
- http://jasunusemoki.onlinewebshop.net/social_media_marketing_plan_2020.pdf
- http://sebedugufafa.rf.gd/78330636533.pdf
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000100c1.bin` `703a934f05063a72e0c0587da6017c78bf964ac043f891dbf86169fc3d32f912`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x100C1	5096 bytes
`font_01_sfnt_off00011210.bin` `b7b22e09781fbc6ac72c71c164106d195ee72a469d992070ecf4f0dd3a1a6244`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11210	10460 bytes

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