PDF malware analysis — malicious · fca7fd78bfbcf79c

MALICIOUS

PDF

68.3 KB Created: 2021-02-11 19:06:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16

MD5: b6af234065fc8876310cb56b6080f1b4 SHA-1: 4b0cd721164a1e889440c33baa20219619abaecb SHA-256: fca7fd78bfbcf79c4c055acbf2b0b62886ac299d7f4e63351f87a19f53a170c6

206 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged as malicious by multiple heuristics and an ML classifier. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The presence of a callback lure indicates an attempt to engage the user directly, likely for a scam. While no scripts were explicitly extracted, the PDF structure and link farm behavior are indicative of malicious intent, possibly to redirect users to malicious sites or download further payloads.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 7

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.
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.
Callback phishing phone lure medium SE_CALLBACK_LURE

Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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/123?utm_term=aura+electrical+supply+brooklyn+ny PDF link annotation
- https://mozalotajevel.weebly.com/uploads/1/3/2/6/132682758/pabegifu.pdfIn PDF document text
- https://vebexedupatad.weebly.com/uploads/1/3/2/7/132740253/nemawuxege_tugutaxufora.pdfIn PDF document text
- http://online-bestshop.xyz/39757318231dhlzq.pdfIn PDF document text
- https://perufagumitaxa.weebly.com/uploads/1/3/0/7/130738779/xukoviselonu-fusubugojezavuf-teguxif.pdfIn PDF document text
- https://xidazujagavoza.weebly.com/uploads/1/3/1/4/131453269/pudepuju.pdfIn PDF document text
- http://nesobaka9.xyz/super_smash_bros_ultimate_characterspjt0o.pdfIn PDF document text
- http://particuliers-societegenerale.xyz/subterfuge_make_a_sentencevch1j.pdfIn PDF document text
- https://zapizurur.weebly.com/uploads/1/3/4/9/134900478/63661b1236820.pdfIn PDF document text
- http://vigetatefix.iblogger.org/bouncer_11_fantasy_app.pdfIn PDF document text
- http://mavito.online/factores_de_riesgo_de_la_obesidad_infantilphra6.pdfIn PDF document text
- https://lanuwoga.weebly.com/uploads/1/3/1/6/131637333/vagidebokikiva_latavamuja_rijasiwopo_fedalog.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://poravilotizeve.epizy.com/anomalias_cromosomicas_numericas_y_estructurales.pdfIn PDF document text
- https://s3.amazonaws.com/janodojivi/charlie_puth_boy_free.pdfIn PDF document text
- http://jesebikalag.epizy.com/engagement_ceremony_invitation_card_template.pdfIn PDF document text
- https://s3.amazonaws.com/lijopavexanuse/lebuwetokapejur.pdfIn PDF document text
- https://s3.amazonaws.com/belapawerezuju/black_operations_2_hile_apk.pdfIn PDF document text
- https://s3.amazonaws.com/bidemewufa/associated_press_style_guide_online.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000cec1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCEC1	5220 bytes
SHA-256: `fc6e7b82a2bd21b346576392f9246b1299c6d477387127d8fb719d6f7b429bde`
`font_01_sfnt_off0000e096.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE096	10468 bytes
SHA-256: `4850c89f10d97db217add35d4d2e2b36c11e2367e20968aa8c23eae9235c73e8`

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