PDF malware analysis — malicious · 80928a0edfd73244

MALICIOUS

PDF

78.7 KB Created: 2021-07-18 19:31:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)

MD5: dca1acfd08ac78286e99e69eb2075d0c SHA-1: 9af6ef20eef0a57ebc8d5448461a302a08cbda71 SHA-256: 80928a0edfd732444d22507f5dd00f6bce7f4abd74192d25c868c6c8d31aa9bd

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF was flagged by multiple heuristics and a machine learning classifier as malicious. It contains embedded URLs that likely lead to further malicious content or phishing sites. The ClamAV detection indicates it is a known phishing trojan, suggesting its purpose is to deceive users and potentially download additional payloads.

Machine Learning

Nyx PDF Classifier malicious score 0.9906

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://feedproxy.google.com/~r/sq/ugae/~3/CHqDoFjlE84/square?utm_term=vice+admiral+martin+fitness+center
- https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f3e5c2731d8c7c6f02e47c/1626596802675/period_cramps_at_night.pdf
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e88204ce205b5713a73642/1625850372831/88197141544.pdf
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ee352ae7148d06bc704dbc/1626223914872/we_give_you_praise_and_all_of_the_honor_chords.pdf
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f078cf0fcd175c503674b7/1626372303437/24777808357.pdf
- https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60eca508c426b81e83030f14/1626121481033/62261443764.pdf
- https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f3c15a29712869f06bb75e/1626587482576/watoniwizavim.pdf
- https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f30ba5d68f32259055a8cc/1626540965558/harry_potter_quiz_with_answers.pdf
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ec863b8300fd66e196943e/1626113595245/law_8_of_football.pdf
- https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e8036efdc75e32ab092d03/1625817966821/xopolozomovuwaxotozoto.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_off0000d2c6.bin` `2c043e8076ee2ca66d87edbdc634ad9702d2757dca0017cbd165a5ab5180f62d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD2C6	10484 bytes
`font_01_sfnt_off0000ea90.bin` `94af269bb3bca0277e3dcc97e0f3970cb0e29d30344315d301466ff069772334`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEA90	16880 bytes
`font_02_sfnt_off00011683.bin` `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11683	16792 bytes

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