PDF malware analysis — malicious · 19e09e5c74fbdf98

MALICIOUS

PDF

79.6 KB Created: 2021-02-16 13:08:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-28

MD5: d43e23f1ce081999d254d88630fc7d4a SHA-1: f9c7866e74baca5656ca12bacb65f7f3f84b709b SHA-256: 19e09e5c74fbdf9829df5e80a5c36cd772fde2f96d48b86cb19a873df59f563c

174 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many pointing to disposable hosting or link farms, suggesting a phishing or malware distribution scheme. The heuristic 'SE_LOLBIN_RUN_COMMAND' indicates the presence of suspicious command sequences within the document text, further supporting malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 7

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND

Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
Urgency / deadline lure low SE_URGENCY_LURE

Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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://jacksth.ru/strik?utm_term=camallanus+worms+treatment PDF link annotation
- http://vofidiporalives.22web.org/android_google_login_get_access_token.pdfIn PDF document text
- https://cdn.sqhk.co/fedovipawe/hihhgih/80501558484.pdfIn PDF document text
- http://feyakast.online/50078068888qhr7h.pdfIn PDF document text
- http://menbp.online/ctv_news_montreal_reportersyv1eo.pdfIn PDF document text
- https://cdn.sqhk.co/fesakesovoka/jd6oltv/jigazaposub.pdfIn PDF document text
- https://cdn.sqhk.co/vilonunufuk/Pojg0tZ/fitiguwukuron.pdfIn PDF document text
- https://cdn.sqhk.co/madagijoj/O4nSgdh/lisarosoropi.pdfIn PDF document text
- https://cdn.sqhk.co/sufadoma/weWhegg/bunker_basher_pickaxe_highest_point.pdfIn PDF document text
- http://elinekici.online/balusipavoromezatozulr6x2f.pdfIn PDF document text
- https://cdn.sqhk.co/sibamoxa/hbhIZid/mens_haircuts_curly_hair_fade.pdfIn PDF document text
- http://prizinsta365.online/vijesisugogomelo4ckx.pdfIn PDF document text
- https://cdn.sqhk.co/vopokemib/y2Ueha1/my_horse_prince.pdfIn macro / runtime command snippet
- http://prizinsta365.online/vijesisugogomIn macro / runtime command snippet
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- http://nisebot.epizy.com/50944488805.pdfIn PDF document text
- http://luwekexopevom.rf.gd/disusapepurarivinevef.pdfIn PDF document text
- http://deroselewem.epizy.com/conversion_of_units_of_measurements_worksheet.pdfIn PDF document text
- http://jefelaxe.epizy.com/92262334165.pdfIn PDF document text
- http://pogazanozedanun.epizy.com/card_battle_rpg_games_android.pdfIn macro / runtime command snippet
- http://mimonutemabase.epizy.com/seputerotu.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000ee9d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEE9D	4780 bytes
SHA-256: `7247f9c90925e7682d44de259f20af09187f94ea56b721f3212c4ea35968b2dc`
`font_01_sfnt_off0000fed4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFED4	10652 bytes
SHA-256: `927683fef408e96cba4d9c99019d22a2c46a568018f7fc18b167343f6caa278d`
`font_02_sfnt_off0001230b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1230B	4324 bytes
SHA-256: `d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378`

Open this report in the interactive analyzer, or submit your own file for analysis.