PDF malware analysis — malicious · 5d94ae9471ed7e2d

MALICIOUS

PDF

131.4 KB Created: 2021-03-14 06:50:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15

MD5: 56a90fccfb55adaa148e9bd7c550e050 SHA-1: 104b9bca12ead263c337d9af6bd3fad53f35e99d SHA-256: 5d94ae9471ed7e2d725ceef9a6e4de66cafac66b0a362a86dcbd30904906bdcb

186 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file is identified as malicious by ClamAV and an ML classifier, indicating a high probability of malicious intent. It functions as a link farm, directing users to numerous external websites, many of which are hosted on disposable domains. The primary lure appears to be a search query, suggesting a phishing or SEO manipulation tactic.

Machine Learning

Nyx PDF Classifier malicious score 0.9993

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://leonvi.ru/strik?utm_term=is+ocarina+of+time+still+worth+playing PDF link annotation
- https://rumitubo.weebly.com/uploads/1/3/4/5/134525427/jizalomuk.pdfIn PDF document text
- http://reduslim-ufficialesito.site/digujudidabomevir3407f.pdfIn PDF document text
- http://xagelofitu.22web.org/fazep.pdfIn PDF document text
- https://voxonevixes.weebly.com/uploads/1/3/4/3/134383310/77411a3a79ed.pdfIn PDF document text
- http://operationhomeplate.com/google_search_history_delete_all_my_activity3xduj.pdfIn PDF document text
- https://mujolimu.weebly.com/uploads/1/3/4/8/134868529/bisigede.pdfIn PDF document text
- https://wavurujubatebar.weebly.com/uploads/1/3/2/6/132682053/zelukafiku.pdfIn PDF document text
- https://guzaluvezitalil.weebly.com/uploads/1/3/4/6/134645516/1670957.pdfIn PDF document text
- https://posalezonekat.weebly.com/uploads/1/3/4/6/134628665/9639751.pdfIn PDF document text
- https://wumupokurura.weebly.com/uploads/1/3/0/7/130776197/2594448.pdfIn PDF document text
- https://vugosolisaxude.weebly.com/uploads/1/3/2/8/132814967/7326320.pdfIn PDF document text
- http://899themes-demo.ru/what_temperatures_can_daphnia_survive_inllnli.pdfIn PDF document text
- http://cloudmarket.website/percy_jackson_first_book_plote9ol7.pdfIn PDF document text
- https://lekaretuzej.weebly.com/uploads/1/3/0/7/130738752/aad9e5f3.pdfIn PDF document text
- http://help-igcopyright.xyz/74502446009z2476.pdfIn PDF document text
- http://parrrtner.xyz/fewexaduzozolomebojeclfpf.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/404e5922-aa52-4356-83ec-88f931ec1d03/best_bluetooth_adapter_for_bose_sounddock_1.pdfIn PDF document text
- http://xebinuv.rf.gd/tezubada.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b5601165-573b-4f57-9ac9-44ba5e2a3c26/98256283042.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/11a8fd7a-9884-4673-97a1-f042ac99016b/is_there_a_cheat_to_make_your_sim_go_into_labor_sims_4.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/05eef4f8-633d-4da2-a9e7-170080aad18c/jimazekifemogapuw.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_off000195c3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x195C3	14456 bytes
SHA-256: `57aa4dff1c4272b6a71f3a01dbb50f00d3776e689c4cdf7b26fb80a88204bb73`
`font_01_sfnt_off0001c472.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1C472	5560 bytes
SHA-256: `0f6d427b61c89687a745be085af1f2057bb89c141764abe9c1f3813d3050b90f`
`font_02_sfnt_off0001d750.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1D750	11768 bytes
SHA-256: `b9608d82785ab5ab1a7886c5b756df4766c8f0e1c25e8ac958e27968e0b7aff0`

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