PDF malware analysis — malicious · e1d9cc0d6742562e

MALICIOUS

PDF

88.6 KB Created: 2021-03-29 06:11:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 4561c864d08784fbd1815a714ad6f066 SHA-1: 227b8cbf4d7c42a4b2488f95abb122ac8fbb2bf2 SHA-256: e1d9cc0d6742562eeb7e952165eab5897307a5f3d395128cf3e8a320409f0bf3

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded URLs, with several pointing to disposable domains and link farms, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were directly extracted, the PDF structure and embedded links are consistent with techniques used to redirect users to malicious sites, potentially for credential harvesting or further payload delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.9983

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://vilenefex.ru/wix?keyword=piecewise+functions+worksheet+%25232+answers
- http://tufodudem.mypressonline.com/nozedolokexowefa.pdf
- https://cdn-cms.f-static.net/uploads/4462056/normal_5fd115ac6604d.pdf
- http://storeplus.pro/what_was_the_impact_of_brown_v_board_of_educationu0kef.pdf
- https://lamononokavaf.weebly.com/uploads/1/3/4/8/134878444/sosokufemuv.pdf
- http://digitaltoolsfor.xyz/husqvarna_455_rancher_chain_size3j79s.pdf
- https://cdn-cms.f-static.net/uploads/4384640/normal_6011ed4a57bc9.pdf
- http://bigijawiv.scienceontheweb.net/40516866283.pdf
- http://mnogolidov.xyz/vexemivowulo74u1r.pdf
- http://xadexawufomovi.sportsontheweb.net/jurnal_allamanda_cathartica.pdf
- https://cdn-cms.f-static.net/uploads/4393647/normal_602f9439eaec9.pdf
- https://natatujefeni.weebly.com/uploads/1/3/1/6/131607075/wegoxerexasuketi.pdf
- http://fullcreditreport.info/215671341470z5zs.pdf
- https://static.s123-cdn-static.com/uploads/4370744/normal_5ff8c7876be65.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://c6926203-1eb9-401e-9afa-11f61f201807.filesusr.com/ugd/685707_b14c37ed8a7b4714ad8da5df67b7e7ae.pdf?index=true
- https://uploads.strikinglycdn.com/files/20c866fe-4717-4990-889e-7c6d0c36b64a/vidivarovimogigigukosopi.pdf
- http://tokozod.myartsonline.com/42790845601.pdf
- https://71a0d42b-91d5-4e94-9338-ff69ca8a624b.filesusr.com/ugd/e5d5e5_af674457c2034095a505df74e3b49554.pdf?index=true
- https://05f6fcc2-a4c7-4d5b-b58c-97b640a93f4d.filesusr.com/ugd/74147a_72cf653f15e74af586cb52c15f04ac6a.pdf?index=true
- https://uploads.strikinglycdn.com/files/60b8bf79-1495-46a5-8660-06e395ed814c/how_to_take_apart_a_bissell_little_green_machine.pdf
- https://d6236f05-450e-4b96-9875-1783d83c708b.filesusr.com/ugd/912de2_b3aa3eb9620740a5b8b0b7cef2ed685b.pdf?index=true
- https://uploads.strikinglycdn.com/files/0d7658ad-6779-46f2-ab3d-dabdfe8e9082/mitologia_griega_y_sus_dioses_y_semidioses.pdf
- https://uploads.strikinglycdn.com/files/45614aff-e684-4613-aff1-8926999bc1b4/how_to_pair_directv_remote_rc66rx.pdf
- https://uploads.strikinglycdn.com/files/eb80ba6d-39f2-4327-931e-18f402c46b7f/chiang_story_of_your_life.pdf
- https://b20aee1f-b1b7-4e4e-be5e-d884e4ece670.filesusr.com/ugd/10e3af_5b801c2e63fb41d59e2a6524cb3349d5.pdf?index=true
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000f7fc.bin` `9562ba854eaff63757c4533a27293353ad828f5cbafd67d95ffd400dd38aa969`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF7FC	4768 bytes
`font_01_sfnt_off00010833.bin` `ba19ee0efb254a0a612f135953d346bdeef93e3eda50965aa2e3ea4150e3f10a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10833	12080 bytes
`font_02_sfnt_off000131b2.bin` `f7f944af48a1f29a4fc81369acbb7667dc0c0bb312d09d0e658341ed730dbf86`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x131B2	16144 bytes
`font_03_sfnt_off000146ae.bin` `1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x146AE	4324 bytes

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