MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as a phishing trojan and a machine learning classifier indicated a high probability of maliciousness. An external URI pointing to 'chcial.ru' was extracted, suggesting a phishing attempt to redirect the user to a malicious site. No scripts were extracted, but the presence of an embedded URL is a strong indicator of a phishing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 4
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 https://chcial.ru/square?utm_term=ferric+sulphate+heptahydrate
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ee32ca588fb5669513c1ae/1626223306149/tattoo_on_hand_ring.pdf
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ee0f55fb3cc800db51fb97/1626214229282/how_to_run_apk_file_in_laptop.pdf
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ec7ed659713006cbe0dfd3/1626111702740/what_is_the_plural_of_anus.pdf
- https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e8edda025aa46e30d05c99/1625877978643/63617649305.pdf
- https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ec8939e64ce5371635621c/1626114362033/right_humerus_pain_icd_10.pdf
- https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ee1a09aa539923b5838528/1626216969640/epf_account_activation.pdf
- https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e8d362c81c3e1fd729fb86/1625871202315/intrapersonal_example_sentences.pdf
- https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60ee254ddf274736e0a9caf7/1626219853643/how_to_make_a_tnt_explode_in_minecraft.pdf
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ee096c2af4c01978f8c961/1626212716148/56507459152.pdf
- https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e7bbd6a431ed42d2fa3aeb/1625799638500/69749299692.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/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fcf7.bina3600b74bb1e4549dcd49b5316afd7e6a315d1b2fdefa62008cab78a2e937cf5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCF7 | 10580 bytes |
font_01_sfnt_off00011543.bind3cdc1a0317382f3942a56aa9e49e737da603a11da79ae2ed7d50945f1a4dbab |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11543 | 17568 bytes |
font_02_sfnt_off000142fd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x142FD | 16792 bytes |
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