PDF malware analysis — malicious · fae02f3298dc3179

MALICIOUS

PDF

90.6 KB Created: 2021-07-12 20:53:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)

MD5: ba0d85a43b0b16b85a6c6643b75b1801 SHA-1: 3d21e570afb333ed0b0e4de75c80b1d645d9668e SHA-256: fae02f3298dc31795982ea8d354e797dabf3ee4219981d5c49d1bcfafd3d61ef

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains an embedded URL, 'https://coretry.ru/square?utm_term=nineteen+fifty+two', which is likely used to redirect the user to a malicious site. No scripts were extracted, but the presence of the malicious URL strongly suggests a phishing or credential harvesting attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9921

Heuristics 4

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
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The 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.
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://coretry.ru/square?utm_term=nineteen+fifty+two
- https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e874a854b05203cbd341ac/1625846952617/33061077421.pdf
- https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e7f44e48fdc2594041c7e3/1625814094512/15717351613.pdf
- https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e94711fc46b150582930fa/1625900817995/55368849481.pdf
- https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e7e24a8f757b1ac451e876/1625809483108/another_word_for_streak.pdf
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e86ad7ef49581a95031c28/1625844439607/66053308392.pdf
- https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e92b1a2210ba6bce128724/1625893659036/lopanibov.pdf
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e7d74795719b356d92a5f5/1625806663406/1_special_character_password.pdf
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ec7ac140121f5668990a16/1626110657374/driving_a_6_speed_manual_transmission.pdf
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ec7fdec8b0d544b6d74593/1626111966268/ooo_baby_you_got_what_i_need.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_off0001033d.bin` `5b62b08a75f5143e75520a6b5c4d7f1130799a2726470640a34724e31fcb3bcd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1033D	9908 bytes
`font_01_sfnt_off0001194b.bin` `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1194B	16792 bytes
`font_02_sfnt_off0001315d.bin` `f2455c87667f7de3ff49e680e5b5a013430e2570235927c0ee7f8475d85221e5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1315D	16956 bytes

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