PDF malware analysis — malicious · 6694dfed8e568b6b

MALICIOUS

PDF

78.2 KB Created: 2021-05-23 17:21:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13

MD5: 26b6e2bb34ab0ef72b335e1b10dc764d SHA-1: 3f75c89039093bd4f7e008d4482dddb09703ca0d SHA-256: 6694dfed8e568b6b3522dee2fd5b8071ea0c824c4f7193f51a7dfa8ab2c1f3f1

176 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous external links, a common tactic for SEO spam or phishing. One prominent URL, 'https://jumiwimov.ru/strik?utm_term=2018+dodge+ram+promaster+owners+manual', suggests a lure related to vehicle manuals. The 'SE_CALLBACK_LURE' heuristic indicates the document may also be designed to trick users into calling a fraudulent support number. ClamAV detection and ML classification strongly indicate malicious intent, likely phishing or malware distribution.

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.
Callback phishing phone lure medium SE_CALLBACK_LURE

Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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://jumiwimov.ru/strik?utm_term=2018+dodge+ram+promaster+owners+manual PDF link annotation
- https://diniporugixufov.weebly.com/uploads/1/3/1/8/131856235/puwonele_tojajam_vepiwofug_jademugunesobim.pdfIn PDF document text
- https://tazififodokufu.weebly.com/uploads/1/3/0/7/130776891/nolupopegib_bewipenigakid.pdfIn PDF document text
- https://zuxubemusaf.weebly.com/uploads/1/3/1/4/131453996/paxisotetusojukebeto.pdfIn PDF document text
- https://xepesirivow.weebly.com/uploads/1/3/1/4/131408502/91e560.pdfIn PDF document text
- https://vosexubef.weebly.com/uploads/1/3/5/3/135303792/30652.pdfIn PDF document text
- https://dorubirema.weebly.com/uploads/1/3/4/3/134317311/7768241.pdfIn PDF document text
- https://dunipilulu.weebly.com/uploads/1/3/4/8/134880259/0993b8a.pdfIn PDF document text
- https://devigejijakefu.weebly.com/uploads/1/3/2/7/132740662/8812885.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://s3.amazonaws.com/sitok/research_proposal_example_apa_6th_edition.pdfIn PDF document text
- https://s3.amazonaws.com/minaxigevani/47292298438.pdfIn PDF document text
- https://s3.amazonaws.com/belopudevuzuza/romuv.pdfIn PDF document text
- https://s3.amazonaws.com/mibiwivanetuj/93283576766.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/854d7687-331b-4779-9bdc-42a0d2ac806d/warlock_5e_hexblade_build.pdfIn PDF document text
- https://s3.amazonaws.com/memexelu/95438232850.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8c3a5a34-3e87-4699-b1c2-e0bb576b9f4f/43541779902.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9aba5882-2e67-44f2-8a6b-4f006d317006/how_did_the_tasmanian_tiger_protect_itself.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4f6e9361-999a-470a-86f1-eb7c45adad43/what_are_the_five_types_of_relationships.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/534ada70-a16c-45a3-8977-9609aa0165f5/cuanto_tiempo_tarda_en_arreglar_papeles_un_residente_a_su_esposa.pdfIn PDF document text
- https://s3.amazonaws.com/bajapovogam/23931984160.pdfIn PDF document text
- https://s3.amazonaws.com/jesidofefe/81377972947.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e708.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE708	5632 bytes
SHA-256: `6573bf4734accca85d57dca3f258626008079d9f9ca1832212759d5e8e101d06`
`font_01_sfnt_off0000fa1d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFA1D	10280 bytes
SHA-256: `4f887ba4a631ab60f39bbeca7efaad5f49b7ae00cd838c8a40d6454d3edee00e`
`font_02_sfnt_off00011d3c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11D3C	4324 bytes
SHA-256: `d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378`

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