PDF malware analysis — malicious · 2de30a6716af0118

MALICIOUS

PDF

82.0 KB Created: 2021-06-12 08:06:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25

MD5: fa5c8df38dab44dd46cf2438068e484c SHA-1: a8c817f36a30fabedf821855453923d5c5efa09a SHA-256: 2de30a6716af011871943920a1ad1d6ce198d0e15bcec8821eb00a0073dd1ce9

186 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains a significant number of external links, with one pointing to 'garglob.ru', suggesting a phishing or malicious redirection attempt. The presence of a link farm on disposable hosting further supports a malicious intent, likely to distribute further payloads or conduct phishing.

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.
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://garglob.ru/pbw?utm_term=if+the+world+was+ending+piano+letters PDF link annotation
- https://cdn-cms.f-static.net/uploads/4402956/normal_605d91c6a00c6.pdfIn PDF document text
- https://rekazisiw.weebly.com/uploads/1/3/0/8/130874265/mobagipurun.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387577/normal_6037fe690c1d5.pdfIn PDF document text
- https://nenomoxemobare.weebly.com/uploads/1/3/6/0/136010140/vanizope.pdfIn PDF document text
- https://jurizimobijagi.weebly.com/uploads/1/3/0/8/130874317/namemumakegad.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/78c6c897-dfb9-438f-95d4-598a170e07d9/how_to_get_orange_peel_out_of_single_stage_paint.pdfIn PDF document text
- http://jopamedet.pbworks.com/f/how_to_reset_ti_89_titanium_to_factory_settings.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4153eafa-bacf-4789-84ea-c4e7daf6aa2d/20226870956.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a3722e2d-a45c-4510-937f-cc8be8381428/bose_av3-2-1_ii_media_center.pdfIn PDF document text
- http://mutoteja.pbworks.com/w/file/fetch/144510222/whats_34cm_in_inches.pdfIn PDF document text
- http://zekapotog.pbworks.com/w/file/fetch/145163019/34966980062.pdfIn PDF document text
- http://wotasaful.pbworks.com/f/ninosarazedupufokinuzava.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/83f7e338-8378-48e0-964c-099d8a997ecd/batijoxibuxuwijoxaramafo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3d528b2a-7ce4-4133-bf0d-2ec70e4a1e3e/what_is_nsc_defensive_driving_course.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/38269e5d-2a67-4a01-a8b7-439ac0fb6e6f/wokedokoturuwofaw.pdfIn PDF document text
- http://xuladejuzor.pbworks.com/w/file/fetch/144548859/what_does_diagnostic_analysis_mean.pdfIn PDF document text
- http://kedetuwi.pbworks.com/w/file/fetch/144429063/54624077267.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_off0000f362.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF362	5120 bytes
SHA-256: `410fe3b8ae3eda483ad8ff820687d14db690b926eef7d1119f85f083b0a5bc92`
`font_01_sfnt_off000104d6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x104D6	12340 bytes
SHA-256: `42699bc6f21d3e13dde0e4c9eb871893acf35928b574cc93c75445bbc300f060`
`font_02_sfnt_off00012d15.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12D15	4324 bytes
SHA-256: `0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333`

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