PDF malware analysis — malicious · fd94699570eed590

MALICIOUS

PDF

77.7 KB Created: 2021-07-14 08:16:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)

MD5: ca14d76fafd06e1c1c3e0baeb97d2cb6 SHA-1: 7d64293a9b9091dfdbf10638c41c5862d9419620 SHA-256: fd94699570eed590b416c7cd53bc8de046a34e2ab48c51be486bfc70dbf09892

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The file was detected as malicious by ML classifiers and ClamAV, indicating a phishing attempt. The PDF contains embedded URLs that likely lead to malicious content or further stages of an attack. Although no scripts were explicitly extracted, the presence of embedded URLs and the nature of the detection suggest an attempt to exploit users through deceptive content.

Machine Learning

Nyx PDF Classifier malicious score 0.9680

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://feedproxy.google.com/~r/sq/ugae/~3/gOBB6uaVNRA/square?utm_term=answers+to+tell+me+about+yourself+interview
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e884849c07913b63f47cab/1625851012134/the_rolling_stones_unplugged.pdf
- https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e77316203aa41bb6cd424b/1625781014902/1_second_timer_terraria.pdf
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ee65cb462f394a1e44cd4d/1626236363715/school_2017_full_episode_eng_sub.pdf
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ee156a8e3fff2bd3bd4cdb/1626215786385/free_online_pacman_games_full_screen.pdf
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ecac6bcd1a1204f6cc224d/1626123371639/past_simple_past_continuous_games.pdf
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ec7907ad1bf7105ccac9e7/1626110215389/i_want_to_dissociate.pdf
- https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ee5cab2ee8b51fd9376354/1626234027455/64038539098.pdf
- https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e90b623b7e7c63344f5633/1625885538491/psychotherapeutic_counselling_meaning.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_off0000cfe1.bin` `05b9aea01f3d1c0ccdbbc799ec6d828bb6ea43181214c1907c9115592986a2da`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCFE1	10860 bytes
`font_01_sfnt_off0000e916.bin` `9dd746abce5773e676ac0309796038ccae5ab007b64023b2952f184ce7c5c3f1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE916	15604 bytes
`font_02_sfnt_off000110be.bin` `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x110BE	16792 bytes

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