PDF malware analysis — malicious · dddad379a9a9e16c

MALICIOUS

PDF

78.5 KB Created: 2021-03-21 07:08:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13

MD5: ae09a6a88cae9c829d2a7d3e6723fe83 SHA-1: 037cc0de559ac84791617c265a1043f2bef39d78 SHA-256: dddad379a9a9e16c257c2ef448668dc7997ef0244b89972ed23bed45e7842ff9

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous external links, forming a link farm, with one prominent URL leading to a site offering a 'call voice changer apk free'. This suggests a phishing or malware distribution attempt. ClamAV detection as 'Pdf.Phishing.Trojan' further supports the malicious classification. No scripts were extracted, but the PDF structure itself is used to host and link to external malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.9993

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://leonvi.ru/wix?keyword=call+voice+changer+apk+free PDF link annotation
- http://ziwusis.getenjoyment.net/33380310233.pdfIn PDF document text
- http://fumatiw.mypressonline.com/how_to_knot_between_beads.pdfIn PDF document text
- http://bijepitujutix.sportsontheweb.net/sozelefaxofikes.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://af30af13-e0b7-4de0-aca7-7783c01eade2.filesusr.com/ugd/9757e7_12660d3dec004b7293c6603e2cb45cb7.pdf?index=trueIn PDF document text
- http://zesafemumibow.myartsonline.com/centrales_eolicas.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dba8cc52-8569-484c-8f83-e9e03672aba6/quality_management_healthcare_definition.pdfIn PDF document text
- https://s3.amazonaws.com/panalipolifod/vuxulo.pdfIn PDF document text
- http://wozimape.onlinewebshop.net/gatutupenizad.pdfIn PDF document text
- https://cae2aa39-5014-47ec-b549-0fed73f36d02.filesusr.com/ugd/c8683e_368dff0941ee4beab47d520003ea021e.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/49762bcc-6b7e-4245-9654-4bc64ba2716b/mogijewuwaronegepozovuk.pdfIn PDF document text
- https://add83a7c-0e31-48b3-928b-061d82ba9144.filesusr.com/ugd/205ae4_077f96ee16b942cf8c48360cc6dedbbb.pdf?index=trueIn PDF document text
- https://0c2a7d7b-be9d-4ef2-a94c-09ca905cc17d.filesusr.com/ugd/7d21c0_5ce44e7101c84b24ae8a882b2d477beb.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/kezemiradigu/koenigsegg_agera_r_wallpaper.pdfIn PDF document text
- https://s3.amazonaws.com/jodabiladezot/love_you_bebe_bapu_song_ringtone.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/31568244-5689-406a-9b8a-0b3c23297d2d/povupogatiwojibakileva.pdfIn PDF document text
- https://s3.amazonaws.com/bokofapig/traductor_de_ingles_a_espaol_audio_google.pdfIn PDF document text
- https://s3.amazonaws.com/dakebesuvum/how_high_were_the_walls_around_babylon.pdfIn PDF document text
- https://s3.amazonaws.com/lomogas/libro_azul_texas.pdfIn PDF document text
- https://s3.amazonaws.com/lefemijip/27980680332.pdfIn PDF document text
- https://584abdf6-e408-48d3-a53c-4313a8f82471.filesusr.com/ugd/18ee90_aea702c0dcfb4814bd821bcfd49951bf.pdf?index=trueIn PDF document text
- https://e7ba4f66-d023-404d-a355-a5b98970f127.filesusr.com/ugd/cac9e4_44bcc6678129411cb2d8ae310ea73c9c.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/90604a97-9d8f-4276-b82e-a36a1763c051/how_to_do_well_in_abstract_algebra_7th_edition.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ab6dcf32-01bb-4aa3-b6c8-fb66f54d55e0/15490988086.pdfIn PDF document text
- https://s3.amazonaws.com/vavebufevodutob/23768924579.pdfIn PDF document text
- https://20996a60-9695-4f45-8fdb-44bdc783da55.filesusr.com/ugd/c57cae_ffc9d0bd59704952ba00bd5adc8c217a.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000f2be.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF2BE	5128 bytes
SHA-256: `49664b0c878fa88655062436beff13ce0f383bc23286f820fd4604f60c477f5c`
`font_01_sfnt_off00010436.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10436	12904 bytes
SHA-256: `2d4a5c9c3379c1571794a72af314a4c981cff681da77ec54b1787dbc95b1184e`

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