PDF malware analysis — malicious · fd0d918615273828

MALICIOUS

PDF

78.7 KB Created: 2021-03-06 11:18:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04

MD5: 86c2ba335c4ede3552cb497c23d8b9f4 SHA-1: 348f0ac9fc9041eba4e60ab12ea85993462934f7 SHA-256: fd0d91861527382848cccab60e3c30a820a198551d91acc5f72cdba82965d1cb

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous external links, including a suspicious one to 'fokemale.ru', suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a common tactic to redirect users to malicious sites, potentially for credential harvesting or further payload delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.9964

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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://fokemale.ru/award?keyword=world+history+test+and+answers PDF link annotation
- https://static.s123-cdn-static.com/uploads/4388169/normal_60040c0797784.pdfIn PDF document text
- https://bewevirat.weebly.com/uploads/1/3/1/4/131437926/liwulet.pdfIn PDF document text
- http://firstsecu-paypal.com/lepukofoxedotourlgl.pdfIn PDF document text
- https://wosepujejos.weebly.com/uploads/1/3/4/6/134649517/wowawo.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4381289/normal_5ff5939015d98.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374980/normal_5fe9a8c89dcf6.pdfIn PDF document text
- https://gikemadisasov.weebly.com/uploads/1/3/4/6/134667176/vuvevuxi.pdfIn PDF document text
- http://copyrightnotice-ig.com/sonalevonofividawibojerikg094l.pdfIn PDF document text
- http://center-about.com/24171752276tnqrh.pdfIn PDF document text
- http://flipping-car.online/ariens_snowblower_dealership_near_meiav8m.pdfIn PDF document text
- https://zuwukozoxuwiged.weebly.com/uploads/1/3/4/7/134713444/fukufekope.pdfIn PDF document text
- http://by-roof.ru/ps4_emulator_android_and_instructionspuprg.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4458622/normal_5fc94c694504e.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/wuxupewu/net_framework_4._6_2_developer_pack.pdfIn PDF document text
- https://s3.amazonaws.com/dagasopones/jugidutizadoxapi.pdfIn PDF document text
- https://s3.amazonaws.com/voxipanovigepiv/13275414307.pdfIn PDF document text
- https://s3.amazonaws.com/dagasopones/android_binder_aidl.pdfIn PDF document text
- https://s3.amazonaws.com/juvosi/banorivupezewe.pdfIn PDF document text
- https://s3.amazonaws.com/zarusegibitumet/valutesetaw.pdfIn PDF document text
- https://9579f988-9383-433c-acf3-5fff76e0c882.filesusr.com/ugd/191a6d_0aec780403f94b80bc61a8669e8e15fd.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/wozowuledij/job_application_letter_teacher_format.pdfIn PDF document text
- https://5e54824a-8208-41b0-8aeb-7c017e8cfb46.filesusr.com/ugd/f64db8_8f2a7170775647b58d327e1253b6b56a.pdf?index=trueIn PDF document text
- https://09d56968-2ae9-412d-ad86-e67dc63a1c23.filesusr.com/ugd/e8b91f_18875138c2c844d9afae4fbc89454b65.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/pasawexawinogad/blue_green_image.pdfIn PDF document text
- https://728bf1be-24e3-4891-ba98-fedceca1a503.filesusr.com/ugd/3268c8_438f3ee019de4f1981f4f6063e1f353a.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/sosupejuxofedo/calendario_mensual_2019_mexico.pdfIn PDF document text
- https://676a7a22-5bec-432e-92e0-9d4a0a27851c.filesusr.com/ugd/a1fb72_063f5af5f70542cf95747801f233243f.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/fodose/bass_booster_pro_apk_android.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000f7ba.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF7BA	5120 bytes
SHA-256: `cec189e05c7590d8cea854f0939877631b5c5482df82db108675c7fb4c10f117`
`font_01_sfnt_off00010933.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10933	10452 bytes
SHA-256: `99edfcb9865644e4b461c358e88efd2b3e4740aedef77fe722ce339bd8b610e9`

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