PDF malware analysis — malicious · 2a72b49bfeeeefe1

MALICIOUS

PDF

86.3 KB Created: 2021-05-28 12:23:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24

MD5: d65ac2d83718bbe5322b9921ae552b11 SHA-1: e070a04088cba95a65073014a736afac6c70d732 SHA-256: 2a72b49bfeeeefe1531bb3ffbc00e2017477b602a8941495823851923494692d

234 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document exhibits characteristics of a phishing lure, specifically employing a fake CAPTCHA to deceive users into interacting with malicious links. The presence of a large number of external links, many hosted on disposable domains, further supports this assessment. The document's content, while appearing to be about Nintendo eShop codes, is likely a pretext to drive traffic to these malicious URLs.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

Heuristics 8

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.
Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA

Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
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.
Urgency / deadline lure low SE_URGENCY_LURE

Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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://bologen.ru/strik?utm_term=how+to+get+free+nintendo+eshop+codes+2020 PDF link annotation
- https://kenitavujene.weebly.com/uploads/1/3/5/9/135977886/tipepos.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4491157/normal_601ffc983883f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4474211/normal_601ed546cfe1e.pdfIn PDF document text
- https://gekokalomekifa.weebly.com/uploads/1/3/4/5/134597992/7761579.pdfIn PDF document text
- https://mazoguwikite.weebly.com/uploads/1/3/4/6/134614920/1807206.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4390637/normal_60366fe59777a.pdfIn PDF document text
- https://felajarego.weebly.com/uploads/1/3/4/6/134605087/lapeg_befosodo.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4423166/normal_60327eba5ea3b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4476002/normal_60128408bef26.pdfIn PDF document text
- https://labimatejodo.weebly.com/uploads/1/3/2/3/132302966/0cfba35.pdfIn PDF document text
- https://nagofojog.weebly.com/uploads/1/3/4/5/134586362/536f0d0f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4482418/normal_6015cbfa4c916.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://uploads.strikinglycdn.com/files/f53f3a64-7780-4f15-8420-ba7f914fa320/cham_cham_dance_video_download_mp4.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/00815977-5ee0-472a-b21b-2995e9b60730/lusuzaxititorololo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2aef8ddd-42ba-4e4b-950c-ed35dcfeb914/how_to_install_evenflo_sonus_65_car_seat.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_off000106ef.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x106EF	5288 bytes
SHA-256: `df871ccf247e7afee6948660668ef289a0635db092aa1a87e2d2e29817687bee`
`font_01_sfnt_off00011905.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11905	10860 bytes
SHA-256: `0a05f7e385e157f45c44b2b5468b8acafa0c53d46262d63ac17a4124fe5f9441`
`font_02_sfnt_off00013df2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x13DF2	4324 bytes
SHA-256: `1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361`

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