PDF malware analysis — malicious · 1019dad2678c5f9b

MALICIOUS

PDF

77.0 KB Created: 2021-03-25 14:34:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 74cc65923fe7ae834e7b7ec11c7d0e63 SHA-1: 8fb56a622373494b90cec8008b58695bd5bf6cfa SHA-256: 1019dad2678c5f9b1ced32549f3b2eb1e0111614b94a138195f0b5dbf51a12e2

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'jumiwimov.ru', which is likely a phishing or malware distribution domain. The document body, though heavily obfuscated, suggests a lure related to 'aircraft maintenance checks', aligning with common social engineering tactics.

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://jumiwimov.ru/award?keyword=aircraft+maintenance+checks+a+b+c+d+pdf
- https://cdn.sqhk.co/bakavaxa/ljihjt2/hicare_sanitizer_price.pdf
- https://cdn.sqhk.co/timafewa/jZ9WjcU/virus_hunter_island_guide.pdf
- https://cdn.sqhk.co/lopumilekana/MjihMig/vh1_live_stream_123.pdf
- https://cdn.sqhk.co/guzikiku/fCMijic/golf_clash_tommy_expert_wind.pdf
- https://cdn.sqhk.co/kewixoretuze/haSVgje/nobabefan.pdf
- https://cdn.sqhk.co/wemorapi/hbptXje/dabasa.pdf
- https://cdn.sqhk.co/kagurase/gjpsVjC/english_songs_for_kids_free_video_download.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/7079e5d3-f912-4ab9-ac3e-6e9ee1d8a5b2/2006_john_deere_gator_hpx_4x4_value.pdf
- https://s3.amazonaws.com/fofeguj/19944847171.pdf
- https://uploads.strikinglycdn.com/files/a1a020c4-8a09-4db5-b1ea-8804e4ff96dc/pidazafojopefexeluk.pdf
- https://s3.amazonaws.com/pidufozu/play_store_apps_jio_phone.pdf
- https://uploads.strikinglycdn.com/files/b9ded508-306f-49f6-8979-b2a208e189d4/5824034202.pdf
- https://s3.amazonaws.com/sowewazulejewi/rokiforefan.pdf
- https://s3.amazonaws.com/somisilegex/wedding_shoes_images.pdf
- https://s3.amazonaws.com/nisiwanolom/12192225805.pdf
- https://s3.amazonaws.com/baxegezivumi/bleacher_report_power_rankings_week_9.pdf
- https://s3.amazonaws.com/panalipolifod/read_physics_books_online.pdf
- https://s3.amazonaws.com/zoromexemuzid/vozomuli.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_off0000ed8d.bin` `ca26b24b1e2bd86375c020ce2c2d6ee3843425fac9f79cbfe973fa6910f21aee`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xED8D	5556 bytes
`font_01_sfnt_off00010043.bin` `b14f9bac7bbd2eb169a54853391b75ac1be253130b84e892e3f7f4827a2c25e5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10043	11248 bytes

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