PDF malware analysis — malicious · d65be4e6c5de4f07

MALICIOUS

PDF

84.9 KB Created: 2021-03-23 15:13:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 5677e87f514c458839a3a9f939b44691 SHA-1: 5c963e86fef59ae81d20a08fbe1ffe59f2004f5c SHA-256: d65be4e6c5de4f079bdfe7b0a7c6690a05a2a3529156549119b0759754a5339d

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains heuristics indicating it is a link farm and has been flagged by ML classifiers and ClamAV as malicious. The embedded URL points to 'fokemale.ru', which is likely a malicious domain used to host or redirect to further malicious content. The document body, though heavily obfuscated, contains text related to song downloads, suggesting a lure for users to click on the malicious link.

Machine Learning

Nyx PDF Classifier malicious score 0.9991

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://fokemale.ru/wix?keyword=download+lagu+ayu+ting+ting+cemburu+mantanmu+mp3 PDF link annotation
- https://static.s123-cdn-static.com/uploads/4409092/normal_5fdfc92f7303a.pdfIn PDF document text
- https://sudiduku.weebly.com/uploads/1/3/1/4/131452825/fivibufezesi.pdfIn PDF document text
- https://musokuvezuref.weebly.com/uploads/1/3/1/8/131871850/mobewage_molabuwanu_rajuvobabew.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4409411/normal_601a62c520913.pdfIn PDF document text
- https://sapilijufidukuw.weebly.com/uploads/1/3/4/9/134901451/f9fadfbf48f09.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4465149/normal_6020ab0ed373e.pdfIn PDF document text
- https://napokepuwaju.weebly.com/uploads/1/3/1/1/131164128/d46fce48a.pdfIn PDF document text
- https://bigonokefexix.weebly.com/uploads/1/3/4/5/134518339/893e5935.pdfIn PDF document text
- https://juwujumatel.weebly.com/uploads/1/3/4/0/134042908/f5e0e50c.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4402247/normal_60038e35a14f2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4457592/normal_60252f4e80563.pdfIn PDF document text
- http://zirosax.iblogger.org/vazulobaf.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/b76c7add-03d4-4261-97b3-ac4655dd1925/68005851439.pdfIn PDF document text
- https://s3.amazonaws.com/ropuba/rinijetutisetojof.pdfIn PDF document text
- http://vosowetawevu.epizy.com/hd_video_recording_android_app.pdfIn PDF document text
- https://s3.amazonaws.com/wisuw/83910806343.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b36cb542-855d-4680-8809-6ff1bc3874db/57902971976.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/71917091-8e4e-4d36-a4ad-aec4c4d9d66b/tusivufuwafotaxufuden.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0e4da6b2-3782-4800-b5c6-301fb6ef9634/darovabaramogad.pdfIn PDF document text
- https://s3.amazonaws.com/perurulexi/oahu_surf_report_sandys.pdfIn PDF document text
- https://s3.amazonaws.com/pusixa/kibijejuranuluwave.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e0bbe474-5787-44a6-990b-c59bf8fa09ad/white_bird_black_beak_yellow_feet.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e2d5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE2D5	6828 bytes
SHA-256: `a9528a54225458d4509915857f2bc690344fb6d5a809a721213c6d36c2dc8258`
`font_01_sfnt_off0000fa12.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFA12	5712 bytes
SHA-256: `fcffee310ea453e9c7d55eaca02c51e4d3af531f37d9f11dec49cf62e9197b34`
`font_02_sfnt_off00010d7f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10D7F	5044 bytes
SHA-256: `090993920d97e3da22e8d496e64314a9af862fa77004b90ab4ad36fb160048f5`
`font_03_sfnt_off00011b46.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11B46	12440 bytes
SHA-256: `ec25fbd48f7dffdf49cc63beab0dbc0769d15fad82e55cd048eb5a70349c5573`

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