PDF malware analysis — malicious · 1919c88c59dde039

MALICIOUS

PDF

73.0 KB Created: 2022-03-25 17:35:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22

MD5: 4b34fbc1be06b11a3453838a3cf10bac SHA-1: b1b5f73c25a1250ff27483e1870378877796e642 SHA-256: 1919c88c59dde039d5c6dc9d894dca1c2a40e232bf8f2cac1b27f632c251494a

186 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9981

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://colod.co.za/YmrXLWy8?keyword=there%20is%20there%20are%20exercises%20pdf%20perfect%20english%20grammar PDF link annotation
- https://boxorefo.weebly.com/uploads/1/3/0/9/130969922/rovoxanunon_safew_migujojab.pdfIn PDF document text
- https://jibunomo.weebly.com/uploads/1/3/5/3/135348462/sozixipum_ruxapa_jaxodok.pdfIn PDF document text
- https://sinosopad.weebly.com/uploads/1/3/4/8/134892142/mebabuw.pdfIn PDF document text
- https://dotodologeviron.weebly.com/uploads/1/3/4/5/134513902/9322775.pdfIn PDF document text
- https://bujefodamefizup.weebly.com/uploads/1/3/1/0/131070612/galulewotamiripotol.pdfIn PDF document text
- https://nevonanopovew.weebly.com/uploads/1/3/4/3/134335048/360e8128c6c436.pdfIn PDF document text
- https://lesikikonojen.weebly.com/uploads/1/3/0/7/130740189/b3c66f4.pdfIn PDF document text
- https://gupaxapofigovi.weebly.com/uploads/1/3/4/3/134356466/5023639.pdfIn PDF document text
- https://fejenugid.weebly.com/uploads/1/3/4/0/134016750/247105f81542e.pdfIn PDF document text
- https://burivoren.weebly.com/uploads/1/3/4/2/134265934/wadiku_kuzik.pdfIn PDF document text
- https://tudupumodowi.weebly.com/uploads/1/3/1/4/131406798/xadok_mujelalepoxuf.pdfIn PDF document text
- https://kebufuwotum.weebly.com/uploads/1/3/4/0/134040355/suvunogelit.pdfIn PDF document text
- https://vobokalonumenu.weebly.com/uploads/1/3/4/6/134656332/d2e01.pdfIn PDF document text
- https://kenivefu.weebly.com/uploads/1/3/4/7/134715486/jisuguvata.pdfIn PDF document text
- https://nikigetevakawu.weebly.com/uploads/1/3/1/4/131413362/9024441.pdfIn PDF document text
- https://nodopotol.weebly.com/uploads/1/3/4/0/134018708/33f435e2d7.pdfIn PDF document text
- https://gelowabizum.weebly.com/uploads/1/3/1/3/131398428/wuwejepipizase.pdfIn PDF document text
- https://mamifamutimas.weebly.com/uploads/1/3/1/8/131871874/loluvedipigojar_xukavu_vofowurezus_fexuwosaba.pdfIn PDF document text
- https://wotujajatedigi.weebly.com/uploads/1/3/5/2/135295120/4999882.pdfIn PDF document text
- https://kezodedekupamo.weebly.com/uploads/1/3/4/6/134605888/lemunilumokinutu.pdfIn PDF document text
- https://rezemofojo.weebly.com/uploads/1/3/5/3/135321986/pewuvaken-jetuxovawaboj-xalowolakozugu.pdfIn PDF document text
- https://kumukeluxow.weebly.com/uploads/1/3/4/8/134891970/nofasezadefodu.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000ba7a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBA7A	16792 bytes
SHA-256: `af4903c667de9d30ee3e4a32f33e5e0521771bca7f8e58c7984b5a79bde16ee0`
`font_01_sfnt_off0000e649.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE649	11012 bytes
SHA-256: `9da2a730c6545d57151a362855f4702d6fe53aa1cec9eb68bb68308dfe14321f`
`font_02_sfnt_off0000ff87.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFF87	16416 bytes
SHA-256: `cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336`

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