PDF malware analysis — malicious · e59087d8aee88224

MALICIOUS

PDF

79.2 KB Created: 2021-03-06 22:02:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30

MD5: dc389ab8feb35c6126dcaeebf6ab08e1 SHA-1: 6dc15681e4759ed3527048590ee3964ba85fc61d SHA-256: e59087d8aee88224a9ed70502b93ef476996e59c193e8f50b5285e543a49cf1c

126 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, indicating a phishing or trojan payload. It contains numerous external links, with one prominent URL pointing to a suspicious domain that appears to be a link farm designed to distribute malicious content. The document body, though heavily obfuscated, suggests a lure related to a product manual, aligning with common phishing tactics.

Machine Learning

Nyx PDF Classifier malicious score 0.9990

Heuristics 5

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.
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://midufefew.ru/wix?keyword=kidde+nighthawk+carbon+monoxide+alarm+manual PDF link annotation
- http://mavigawika.scienceontheweb.net/marketing_plan_executive_summary_ppt.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4373504/normal_5fee52835ca4f.pdfIn PDF document text
- http://mignonette.space/lediwivimficpp.pdfIn PDF document text
- http://pedrons.space/xapubozisefu49z2z.pdfIn PDF document text
- http://fitness1.space/1988095892962xea.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4373502/normal_5fdd8ec14f3d1.pdfIn PDF document text
- http://hightrade.club/fimipikisaxijejqb7rr.pdfIn PDF document text
- https://jasugigikimodo.weebly.com/uploads/1/3/1/3/131383258/5465551.pdfIn PDF document text
- http://mozobadijoba.medianewsonline.com/nobemamakebemono.pdfIn PDF document text
- http://datab.vip/certificate_of_australian_origin_formh3pbs.pdfIn PDF document text
- http://beach-fruit.fun/35650358647grmzj.pdfIn PDF document text
- http://tehnotop.site/tom_clancy_ghost_recon_breakpoint_pc_digital_downloadalp58.pdfIn PDF document text
- http://lazategomid.scienceontheweb.net/lavazza_espresso_point_pods.pdfIn PDF document text
- http://begemot.space/5571460103dwt9q.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4383128/normal_5fc611284b65c.pdfIn PDF document text
- https://xedijekotaz.weebly.com/uploads/1/3/1/6/131606072/vinonerabuv.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4465250/normal_603c23c8c82f7.pdfIn PDF document text
- http://sportplays.ru/41735110064oarkz.pdfIn PDF document text
- http://xebubux.sportsontheweb.net/what_will_happen_to_your_eyes_if_you_cry_too_much.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365582/normal_601b9205a9466.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://153f2bed-3501-4ec5-9468-ed1987511f6d.filesusr.com/ugd/f67134_34141a1a7706442cb384c61d8b0a22ac.pdf?index=trueIn PDF document text
- https://5a6df620-610b-4d6f-8f1b-71e936bb70bc.filesusr.com/ugd/1f5cef_f98463754b0d430b9c9f477d3ed97d75.pdf?index=trueIn PDF document text
- https://8a89c5bc-485b-4808-980c-66c60e8d9908.filesusr.com/ugd/834936_551a456b48674bfbbfac114d19ca09ad.pdf?index=trueIn PDF document text
- https://8ed6bd9f-de2b-4923-b7df-82f95eb18a03.filesusr.com/ugd/7fa32f_f6ebfd07dd8d4a768dd8c50affab6ea4.pdf?index=trueIn 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_off0000eaf0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEAF0	5388 bytes
SHA-256: `0144b4755856b83e568fcd6457e6ef3e496f9e78348ac4d9238ae8241fd78933`
`font_01_sfnt_off0000fd22.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFD22	10368 bytes
SHA-256: `b15db9e7d38545dbec7447b319f584d76352d0798de9d9425ed410bec2632c17`
`font_02_sfnt_off0001209a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1209A	4324 bytes
SHA-256: `1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361`

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