PDF malware analysis — malicious · 983e23d7f4df22cd

MALICIOUS

PDF

78.9 KB Created: 2021-05-17 07:21:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25

MD5: b7700ae5488ac37a51084820cd60d032 SHA-1: 49e6bd652f1758960048254bb0b8e33417413b1c SHA-256: 983e23d7f4df22cd1b63197014a0d8f84dbf9065909d9b779fcf081b9c661711

134 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, with a primary one pointing to 'xezojetit.ru', suggesting a redirection to a malicious site. The document body, though heavily obfuscated, contains text related to a 'Skyjack 3226 scissor lift parts manual', which appears to be a lure to entice users to click the embedded link.

Machine Learning

Nyx PDF Classifier malicious score 0.9991

Heuristics 6

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

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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://xezojetit.ru/strik?utm_term=skyjack+3226+scissor+lift+parts+manual PDF link annotation
- https://cdn.sqhk.co/ronelejibir/ii9hjgj/62327871166.pdfIn PDF document text
- https://cdn.sqhk.co/zatufora/dgfijL5/cyber_dude_dev_tycoon_apk.pdfIn PDF document text
- https://nitowapesapu.weebly.com/uploads/1/3/4/4/134442046/bevopipavini.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4417535/normal_600095429aece.pdfIn PDF document text
- http://nifimoperokoj.medianewsonline.com/ages_in_history.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4448991/normal_606568937bdcb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4451225/normal_601dce23d98a0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366331/normal_604e6b904c6cd.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375525/normal_605235a74677a.pdfIn PDF document text
- http://bavimobuxadu.medianewsonline.com/nj_transit_bus_schedule_158.pdfIn PDF document text
- https://cdn.sqhk.co/wifopuzuxiba/M4QYhhb/logic_grid_puzzles_answer_key.pdfIn PDF document text
- https://wenajatimox.weebly.com/uploads/1/3/4/4/134480159/595867.pdfIn PDF document text
- https://gojudewusidaza.weebly.com/uploads/1/3/4/8/134888042/d74b03478a35.pdfIn PDF document text
- https://xukanodipu.weebly.com/uploads/1/3/4/8/134885825/9970434.pdfIn PDF document text
- 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
- https://s3.amazonaws.com/feseni/center_of_excellence_in_information_technology_philippines.pdfIn PDF document text
- http://xasakekom.epizy.com/xixibifinogon.pdfIn PDF document text
- http://riramemixezu.epizy.com/91951816153.pdfIn PDF document text
- https://s3.amazonaws.com/xabalaru/kexadinidasun.pdfIn PDF document text
- http://lifobem.myartsonline.com/ascaris_lumbricoides.pdfIn PDF document text
- https://s3.amazonaws.com/gotenukevepunin/rukapikubimurarus.pdfIn PDF document text
- http://fasosusa.epizy.com/38621682974.pdfIn PDF document text
- https://s3.amazonaws.com/wefadep/93895441191.pdfIn PDF document text
- http://wegamaluperetuj.atwebpages.com/55575153921.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_off0000e52b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE52B	5720 bytes
SHA-256: `7e7e20acf5867110128d22221551bdbfdf9f05bfa3bef76911f3480f79c55932`
`font_01_sfnt_off0000f884.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF884	11528 bytes
SHA-256: `9d848b24322f3240818efa4a8511bed958530865278333edf10abb54ed3f4dc6`
`font_02_sfnt_off00011fe6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11FE6	4324 bytes
SHA-256: `4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3`

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