PDF malware analysis — malicious · 2a0df4f5e812c1f8

MALICIOUS

PDF

80.6 KB Created: 2021-02-21 06:45:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 54fc5be4c27e67d29f7f1980c4f78f47 SHA-1: 26c9a23ecb4ce44972d95e73366a585515d4a2bb SHA-256: 2a0df4f5e812c1f8576ae81ac8ff8f93adf09c022460755b684503f0ca60e3ac

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URI pointing to a suspicious domain, identified by ML classifiers and ClamAV as malicious. The document body, though heavily obfuscated, suggests a lure related to educational content ('relative location worksheet 4th grade'). The presence of multiple external URLs further supports a phishing or malware distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/wix?keyword=relative+location+worksheet+4th+grade
- http://hookup154.online/crossy_road_secret_characters_arctic_update7t8vt.pdf
- https://jinajifija.weebly.com/uploads/1/3/4/8/134889339/joletod_jopikotesuvalar_roxituvumemu_wotowidupa.pdf
- http://watertea.space/33877140769j42u6.pdf
- https://cdn-cms.f-static.net/uploads/4447880/normal_5fd8cd12dcf67.pdf
- https://cdn-cms.f-static.net/uploads/4427284/normal_6013e8ed522c1.pdf
- https://cdn-cms.f-static.net/uploads/4424330/normal_601fb72dd221f.pdf
- https://static.s123-cdn-static.com/uploads/4447278/normal_5fc5fd2e462dc.pdf
- https://renesixedobalew.weebly.com/uploads/1/3/0/9/130969137/ab81b667.pdf
- http://citrus-fruit.space/11254948778nwisw.pdf
- https://gexuguxibam.weebly.com/uploads/1/3/2/6/132696321/797ba3.pdf
- https://walijogopabo.weebly.com/uploads/1/3/0/7/130776167/2957283.pdf
- http://heretythere.site/training_plan_for_staff_template2ionn.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/pazovugal/bhairavi_movie_video_song.pdf
- https://s3.amazonaws.com/tikofaketonub/xekafo.pdf
- https://s3.amazonaws.com/zamuriza/jetewesamaxuto.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://scripts.sil.org/OFL
- 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_off0000e97a.bin` `8110910fd6058a089ac1a4a7c0a51da13e956729eaeaf9c3fd10d8e69adf1409`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE97A	5512 bytes
`font_01_sfnt_off0000fc59.bin` `bdacb6f37fd0bf7afdd80eca13847b77d35adcdae6111974ca4bc1e7c05c8321`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFC59	10404 bytes
`font_02_sfnt_off0001203d.bin` `0732ed98140e633a606da722cd1fec88ba22c684b6250ec3f7393c63cfc92960`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1203D	16172 bytes

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