PDF malware analysis — malicious · 1866046fc31fc06a

MALICIOUS

PDF

87.8 KB Created: 2021-02-09 18:28:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23

MD5: e54908db9ce12ad42f8cf75384423917 SHA-1: 98c543eda4ddae301a7f41a3e03bd08d37f1c0c8 SHA-256: 1866046fc31fc06a9f446b6fdbc32740d3144ce3f60e0469dedca5d2cb10ad98

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains numerous embedded URLs, many of which are flagged as unknown or potentially malicious, suggesting an attempt to redirect users to malicious sites. The presence of external URIs and embedded URLs points towards a phishing or malware distribution scheme.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

Heuristics 4

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

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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/aws?utm_term=isolation+and+identification+of+actinomycetes+pdf PDF link annotation
- http://molotkov.site/flat_belly_workout_chloe_tingdri8q.pdfIn PDF document text
- http://biomanix.best/69665441952e5dul.pdfIn PDF document text
- http://apparently-home.com/ios_13_for_iphone_680mcy.pdfIn PDF document text
- http://kukushpa.fun/cms-1450_claim_formbpf1u.pdfIn PDF document text
- http://ru-1.casa/accp_vte_guidelines_20124ipwa.pdfIn PDF document text
- http://nudukuju.22web.org/86262096700.pdfIn PDF document text
- http://orbitan.fun/igo_maps_free_downloadt8zw2.pdfIn PDF document text
- http://hrushch.space/77249071494u2k8p.pdfIn PDF document text
- http://003-center.ru/23314790958eiyh.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/lixuduwonifa/sedoparuzusamerobadapi.pdfIn PDF document text
- https://s3.amazonaws.com/gifiz/dj_arafat_moto_moto_video.pdfIn PDF document text
- https://s3.amazonaws.com/novifamigot/alfonsina_y_el_mar_partitura_violin.pdfIn PDF document text
- https://s3.amazonaws.com/muwemivumazulax/background_images_for_photoshop_hd.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_off000118e8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x118E8	5244 bytes
SHA-256: `11a1fa801cab12d630d013eee95a7a6b0661230f7f443b293405d557f66fd1a8`
`font_01_sfnt_off00012ac0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12AC0	12060 bytes
SHA-256: `427eff61cf69b0e658aba29508dd014ca4cac1eb33d50a4cfcea217a6bc83651`

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