PDF malware analysis — malicious · 8de6d7bbf7bb3793

MALICIOUS

PDF

90.7 KB Created: 2021-05-22 18:02:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24

MD5: fbe7d0b057ab9b984b048759f02c2a0b SHA-1: 277319fba91639d5f22c99224c36b1ae3515a46c SHA-256: 8de6d7bbf7bb37939302966484318a1f699b4172d01fe856ddc1969aa510de56

136 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a lure related to cracking Wi-Fi passwords, indicated by the document body and the external URI. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were directly extracted, the presence of embedded URLs and the nature of the lure point towards a phishing or malware delivery attempt, likely involving a second-stage download.

Machine Learning

Nyx PDF Classifier malicious score 0.9992

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
Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE

Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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/strik?utm_term=como+descifrar+claves+wifi+para+celular+2020 PDF link annotation
- https://cdn-cms.f-static.net/uploads/4413118/normal_601743d2d1d4f.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4390680/normal_5fdda8784aac8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421354/normal_6044f4ff34e1e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369330/normal_60268310c1470.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/a02e8f3d-debf-48a7-b30f-a31cecb31f04/48478532759.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2b67c10b-3a03-4cdf-9a8b-87056df50e96/how_to_cheat_relationships_in_sims.pdfIn PDF document text
- https://s3.amazonaws.com/gimisorixosu/kindergarten_graduation_program_template.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/930548da-6c44-46b5-a01a-5947c590d984/wukipulokamataxadira.pdfIn PDF document text
- https://s3.amazonaws.com/wujodibu/citizen_navihawk_change_time_zone.pdfIn PDF document text
- https://s3.amazonaws.com/dojivewobasuval/celemony_melodyne_essential_free.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e6afcecc-37ef-48f3-b85c-7d717a297782/bryant_furnace_parts_diagram.pdfIn PDF document text
- https://s3.amazonaws.com/nezanurugega/tofowegekuwojetavijoz.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/89b5dada-27e4-4e7d-a1b2-a281cb2a8d35/41265754473.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/90850e8e-175c-4e74-bf5d-eb187780d4b0/hp_elitedesk_800_g1_usdt_motherboard_specs.pdfIn PDF document text
- https://s3.amazonaws.com/lorifawuvawot/vbscript_date_format_example.pdfIn PDF document text
- https://s3.amazonaws.com/legipalofi/character_design_portfolio.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7543c69a-8894-46a8-b7f1-1ef56817ce32/zebra_ztc_gk420d_change_ip_address.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6507fd12-98e5-4110-ba6b-95b5f90e2875/xaboketivozojisaji.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1f6d5d90-dc59-41e3-8426-871c3cd19fbc/how_to_build_leg_muscle_without_weights.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f91520c5-c3e8-436d-86b7-818494ccccd4/jinaxejixunokasesafapuzom.pdfIn PDF document text
- https://s3.amazonaws.com/kozewuposoridil/commissioning_completion_report.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000101e5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x101E5	5632 bytes
SHA-256: `0262a7627b124edd00cf0e8fe7c3313eaf05b23894b187638a92707e4d835846`
`font_01_sfnt_off00011507.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11507	1800 bytes
SHA-256: `51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0`
`font_02_sfnt_off00011d95.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11D95	11928 bytes
SHA-256: `710eeb5da274ec69f43ade451f26bed3c1b9df16128742d529a436066f1dc854`
`font_03_sfnt_off000144c9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x144C9	16312 bytes
SHA-256: `bf8f9ece8d9d74ce2d7a98a07ee1bb8f4056faf702b3b1702118181e85f1b939`

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