PDF malware analysis — malicious · 2a23dcbbbdfd00a3

MALICIOUS

PDF

75.6 KB Created: 2021-03-10 21:13:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 887792257c1b867ee389af6a5f8c693c SHA-1: da06f093ea9398b224fc060490ed250025808bc7 SHA-256: 2a23dcbbbdfd00a36453c564da32f9c9f5d155258299fa92b1cee94f9ab4b3c8

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URL that mimics a search result for software, likely a lure to trick users into downloading a malicious payload. The ML classifier and ClamAV detection strongly indicate malicious intent, with the embedded URL being the primary indicator of a phishing or malware delivery attempt. No scripts were extracted, but the presence of external URIs and high heuristic scores suggest a phishing or malware distribution scheme.

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://nipisod.ru/wix?keyword=autorap+by+smule+v2.1.7+mod+%2528unlocked%2529+apk
- http://bellissimo.online/how_to_tell_when_magic_mouse_2_is_fully_chargedtc2uz.pdf
- https://simejozegedofu.weebly.com/uploads/1/3/4/3/134359486/fodanotapolila_banenuxenix_gezuge.pdf
- http://hq-cleartv.info/156902041yndvx.pdf
- http://motorutovibipe.sportsontheweb.net/36832328683.pdf
- http://wamuwosola.mygamesonline.org/anabolic_aftergrowth.pdf
- http://pasikufopubiwo.mypressonline.com/buxikozolulataz.pdf
- https://ruvedusipokowu.weebly.com/uploads/1/3/0/8/130813644/demeret.pdf
- http://nubolats.xyz/11614976601dhmnc.pdf
- https://xilivixawigilu.weebly.com/uploads/1/3/4/6/134672458/lufadoxileges.pdf
- http://smm-target.ru/633750107044xz6x.pdf
- http://fesotisifofil.mygamesonline.org/2000_ford_ranger_steering_wheel_cover.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/fotojipifuzitul/delta_bennington_sleigh_4-in-1_crib_instructions.pdf
- https://s3.amazonaws.com/lukepepe/star_trek_the_next_generation_season_4_episode_1_watch_online.pdf
- https://s3.amazonaws.com/lofese/rutagidegafazuvuviruzid.pdf
- https://s3.amazonaws.com/liwara/lojuporurupego.pdf
- https://s3.amazonaws.com/makixibawumebol/jivemalowobutudanaw.pdf
- http://xomutojekes.myartsonline.com/44211988252.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e9c7.bin` `5e47927ba10223f733460509bcf2383629fcdfd65c7a9bcea286060dfa33eef4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE9C7	6024 bytes
`font_01_sfnt_off0000fe61.bin` `915dfe71bf329edca6bd07599115e3cced11540f6f83fb265320c2c4a94dd4e8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFE61	10208 bytes

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