Malicious PDF — malware analysis report

Static analysis result for SHA-256 1972f36a3b0e5d6d…

MALICIOUS

PDF

70.8 KB Created: 2021-03-09 03:49:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ede8569325a956310649c548cf06ef25 SHA-1: 28c6964c1a7177e0538874e0b2f1cb34f29379d1 SHA-256: 1972f36a3b0e5d6da73ab66c8077daf32250d7c99c710df9ad3c758e2e851183
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 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.
  • 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://maypoin.ru/award?keyword=bullworker+bible+pdf+download PDF link annotation
    • https://xojajadajopun.weebly.com/uploads/1/3/4/6/134646320/38878268367396.pdfIn PDF document text
    • https://zonozedu.weebly.com/uploads/1/3/0/8/130874021/2551378.pdfIn PDF document text
    • https://jopokiwajisi.weebly.com/uploads/1/3/4/1/134108554/ff51e2e86b97.pdfIn PDF document text
    • https://gopopozemilin.weebly.com/uploads/1/3/0/8/130874381/e575aa1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://26f2e344-8444-46ea-90c9-5a893bcc2fb3.filesusr.com/ugd/b8c837_0833b90926294421890081a766ea3419.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f47e226-54fd-4293-bafc-4bbcd9446c0e/how_to_use_a_dremel_multipro_model_395.pdfIn PDF document text
    • https://9e7b01ce-91ce-414a-93c5-ade8df4b7359.filesusr.com/ugd/cfbfd2_a1b9192d288d40f499ab5593832c58aa.pdf?index=trueIn PDF document text
    • https://70848fb0-0fd0-490a-9360-2ffa38fc212c.filesusr.com/ugd/08e331_3d9e19d122fb4f988513b7249d89f1dd.pdf?index=trueIn PDF document text
    • https://4bf641bf-117a-4913-931f-55e49063997f.filesusr.com/ugd/5befcb_72edbffc4c574c47a3653a0325df3538.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/dudigonifu/64089056040.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/afaa2925-f160-4148-aa34-fa445ed11f90/2012_jeep_grand_cherokee_limited_wheel_size.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7183d92-2a2c-4752-9399-031460cf727b/40732945523.pdfIn PDF document text
    • https://3a7b682b-4b85-4b21-836a-a34929c8735b.filesusr.com/ugd/0cd3a8_2fdaa93079264727ab544cd2182c41fc.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jasipefulaxiduj/what_is_autonomy_in_early_childhood.pdfIn PDF document text
    • https://51da6a7d-ee05-4a49-87ee-1b74af3aeb07.filesusr.com/ugd/b80405_6a653324ed0c40a680a8697844deec9d.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b47343c-204f-4c84-afa2-4398a2791777/how_to_start_troy-bilt_snow_thrower.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c607.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC607 6744 bytes
SHA-256: 0eac1552a6a0cc8d6d43e14f5c157d052ff2bf21460314f67a2c213e0a454e63
font_01_sfnt_off0000d6ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6EE 5200 bytes
SHA-256: cc97a7fb47bc2fa0724115bdb98ed065680b7c8d3b7c7755372202423fe188df
font_02_sfnt_off0000e8c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8C0 10604 bytes
SHA-256: 0dd862f28eec22960facc05f4d15236935e242bf9c20393c7ecef382586e0d30

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