MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as a phishing trojan. Heuristics indicate it contains a link farm with multiple links pointing to potentially compromised websites, including one specifically identified as a compromised WordPress upload. The presence of numerous external URIs suggests an attempt to redirect the user to malicious content, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9892
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne 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 http://libron.pl/fckupload/assets/file/navuni.pdf
- http://nutricion-intravenosa.com/wp-content/plugins/super-forms/uploads/php/files/00a0822040eb2f54a6158b085dd783df/gelijagabibixivakel.pdf
- https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/1607327ec73ae0---silomarekilax.pdf
- http://serramentisiciliano.it/userfiles/files/pogalofasiwixa.pdf
- http://securitydirect.it/wp-content/plugins/super-forms/uploads/php/files/db2af853bf661f8db21d6ec875c2e57b/41502830944.pdf
- http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b66c6325c35---74766537415.pdf
- https://b2cexpressdemo.com/userfiles/file/35754913156.pdf
- http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/16085bf6ee0489---tujewo.pdf
- http://arch-teh.com/pic/userfile/55179848752.pdf
- https://xn--80aaaglcftt5alesfkk7f.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/f37bceacf3424d961b35fba93492aaec/vifafepivonuw.pdf
- http://wasserburg.pl/userfiles/file/baxikaxawedoza.pdf
- https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b9590fa4baa---15173347066.pdf
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/160ab6f4eb0c7d---nasesabigedafula.pdf
- https://drainscovers.com/wp-content/plugins/super-forms/uploads/php/files/464a81437e46f1931d71b7140248794c/68791441199.pdf
- http://ankurgroups.com/userfiles/file/31697915008.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=the+meaning+of+partisan
- 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/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_004_off00012ed9.binb2e89326057e47028f94bd0e9f8540893420d1044e77a31a577ddab52c364e8f |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x12ED9 | 25644 bytes |
font_00_sfnt_off0000fee0.bin043d869e5b8587d1aea8b202b3e44b02bb2081dd290b52c328213fe18ba10650 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEE0 | 7256 bytes |
font_01_sfnt_off000116c8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116C8 | 16792 bytes |
font_03_sfnt_off00015e36.bin883db298c5171b5ce81f14d9eb95c77010232f7218909112502afc8060c8f5fc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15E36 | 30052 bytes |
font_04_sfnt_off0001a68d.bin4791cbba82a47241c6b2f31f3028c418c83c8043a56b8b33916582a05abc3bb8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A68D | 10724 bytes |
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