PDF malware analysis — malicious · 61ccd603eb04368f

MALICIOUS

PDF

78.8 KB Created: 2021-06-14 00:48:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25

MD5: 258f48cd4f2cb5f7c98af9dce0373377 SHA-1: e2078a6605df0549d57ee12c9a8ab140967e3e72 SHA-256: 61ccd603eb04368f18270f3fc217da336666b6975e21b17b346c16501b22bf0d

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier as malicious. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing campaign. The PDF's structure and embedded links suggest it's designed to trick users into visiting a malicious website.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

Heuristics 5

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 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://drafthe.ru/pbw?utm_term=happy+birthday+wishes+daughter+tamil PDF link annotation
- https://static.s123-cdn-static.com/uploads/4383924/normal_5ffd54a0634bd.pdfIn PDF document text
- https://virerulifig.weebly.com/uploads/1/3/1/4/131407283/8155247.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4375890/normal_5ffb896a2a808.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4421474/normal_6004aa770118d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417207/normal_603d045e7b37e.pdfIn PDF document text
- https://pawizujepus.weebly.com/uploads/1/3/1/6/131637171/wovurunija.pdfIn PDF document text
- https://duxujofibedusor.weebly.com/uploads/1/3/4/5/134577283/xemonanam.pdfIn PDF document text
- https://didefitelov.weebly.com/uploads/1/3/0/8/130874246/wapukoto_noxiv.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4445864/normal_6009dc20adf79.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4480755/normal_5fe4ea79b00b9.pdfIn PDF document text
- https://visizejafu.weebly.com/uploads/1/3/6/0/136093068/e967189f8867.pdfIn PDF document text
- https://peniwifagupe.weebly.com/uploads/1/3/0/7/130738894/kopuke-muzefusa.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4402517/normal_5fc6663a03b5f.pdfIn PDF document text
- https://relujebaxarun.weebly.com/uploads/1/3/1/1/131164257/topititud.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://uploads.strikinglycdn.com/files/bf0055b9-bb8f-4f76-adbf-6ec485c15d47/74762927254.pdfIn PDF document text
- http://numefen.pbworks.com/f/hawkes_learning_systems_college_algebra_answers.pdfIn PDF document text
- http://lipemuv.pbworks.com/f/hes_a_pirate_soundtrack.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2b98aac8-81a3-431e-9eba-ecd9427eb40f/zesazelejet.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e8b8353d-3880-49b9-905f-0639af5037f9/ema_variation_classification_guidelines.pdfIn PDF document text
- http://kegujomojos.pbworks.com/f/dexenaga.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c0da6140-860b-4bc2-8620-2605b05aa65f/does_burger_king_still_have_2_for_5_whoppers.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_off0000e95a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE95A	5668 bytes
SHA-256: `d73df66e25b1d2f5f707f684ba77454a76f032d0305c94cd5e4a500478bb2ae7`
`font_01_sfnt_off0000fc7d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFC7D	4056 bytes
SHA-256: `5c34e4ee590ad8b176f374c538cca17c8df5f6c95df513293fa94d7891af529d`
`font_02_sfnt_off00010bd6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10BD6	9792 bytes
SHA-256: `81e2464fa230f71121d4c3d67399a343dd46e9aa3e8b9274d42a68fdf9757b02`

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