PDF malware analysis — malicious · 7eeec9b53b18e4c4

MALICIOUS

PDF

80.2 KB Created: 2021-03-18 01:16:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25

MD5: 46ac9e74d8e7621e3bfd4a8abfb44c7a SHA-1: 2512a0a98f2b4d898cf5e0ec090006617be2df4a SHA-256: 7eeec9b53b18e4c4b32895722b0c9971e381349df9aebb8a84338e68ee199fe0

196 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous external links, many pointing to Weebly-hosted PDFs, suggesting a link farm or SEO poisoning tactic. The primary URL, zajinet.ru, is presented with a keyword related to movie downloads, indicating a phishing or scam lure. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest malicious intent, likely involving redirection to malicious sites or further downloads.

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.
Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK

PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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://zajinet.ru/wix?keyword=cinema+x+movies+hd+apk PDF link annotation
- https://tadilagene.weebly.com/uploads/1/3/1/3/131381422/8427022.pdfIn PDF document text
- https://borerejo.weebly.com/uploads/1/3/4/0/134040615/zuxunidebuxuritufiso.pdfIn PDF document text
- https://ribavazo.weebly.com/uploads/1/3/5/3/135322422/bidide_nipadogefosov.pdfIn PDF document text
- https://rupanusevufow.weebly.com/uploads/1/3/1/3/131380126/6607970.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/wobuzisibal/30155000612.pdfIn PDF document text
- https://s3.amazonaws.com/vedexajawo/lithermans_limited_misguided_angel.pdfIn PDF document text
- https://s3.amazonaws.com/jejulurowev/new_criticism_example_story.pdfIn PDF document text
- https://s3.amazonaws.com/zedilegol/arendt_between_past_and_future.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4cebf281-609c-4781-9c0c-ecfed89965e6/molenirewilimel.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9416db1b-d77c-4b6c-ba01-2723827239e6/20279368113.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b83bcf32-38e5-4ce4-84b4-a62e8a6d0eac/troy_bilt_riding_mower_drive_belt.pdfIn PDF document text
- https://s3.amazonaws.com/jezekemunidup/interview_checklist_form_word.pdfIn PDF document text
- https://s3.amazonaws.com/gajakelegeza/tekin_rs_pro_fan.pdfIn PDF document text
- https://s3.amazonaws.com/zuguvoxoki/pubg_mobile_play_store_jio.pdfIn PDF document text
- https://03df74f7-894d-4c84-999e-da2b33eb06f5.filesusr.com/ugd/4c7733_afdba6afe23b4094a4828d3a0716fd8b.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/podawakumepewez/90739254252.pdfIn PDF document text
- https://ca6b24e6-01cd-4368-a310-1df05077a315.filesusr.com/ugd/11b39a_bfc5df05f5d5418e9392dd9dcba23d91.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/dewutexorob/affordable_housing_materials.pdfIn PDF document text
- https://s3.amazonaws.com/pogolo/windows_malicious_software_removal_tool_64-_bit.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_off0000f490.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF490	5168 bytes
SHA-256: `044988141e8c17f403dd7f0655f844b87e3d7686cff28385fbc56770e2b2352a`
`font_01_sfnt_off000105f6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x105F6	1800 bytes
SHA-256: `a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620`
`font_02_sfnt_off00010e83.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10E83	10792 bytes
SHA-256: `92ade61fab5938c2c79842a97e6222c15bc0d8d771c78b51077bb8a1dc353abc`

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