PDF malware analysis — malicious · ab460f387b4e331d

MALICIOUS

PDF

76.6 KB Created: 2021-01-30 12:46:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26

MD5: 2e2e9c86da3f685178e0353aee1aac27 SHA-1: ff38a27e263ae9852d4184ebaf19367623034b80 SHA-256: ab460f387b4e331d34c42480d0e284d7f326a8d4aa10179f505bbc6705ae21a4

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains numerous embedded URLs, many pointing to disposable hosting, and is flagged by ML classifiers and ClamAV as malicious phishing content. The document body, though heavily obfuscated, suggests a lure related to downloading movies. The presence of external URIs and the link farm heuristic indicate an attempt to redirect users to malicious sites, likely for further payload delivery or credential harvesting.

Machine Learning

Nyx PDF Classifier malicious score 0.9989

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://seumenha.ru/wb?keyword=download%20movie%20nowhere%20to%20run PDF link annotation
- https://static.s123-cdn-static.com/uploads/4389127/normal_5ff26034c5167.pdfIn PDF document text
- http://6gusevshop.space/georgia_studies_8th_grade_study_guide_answersfqj4y.pdfIn PDF document text
- https://dugeditukuvil.weebly.com/uploads/1/3/4/7/134723955/4025722.pdfIn PDF document text
- https://bozaxadoduzake.weebly.com/uploads/1/3/4/3/134306622/dirokaxide_mijepekufa_razadileludijip_fetidalokixasa.pdfIn PDF document text
- https://tixonanixob.weebly.com/uploads/1/3/4/8/134890866/sijibufaxogavif_bukemo_nibedozijup.pdfIn PDF document text
- http://bavewemelemare.iblogger.org/21093482084.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4469106/normal_5fec43fb6064c.pdfIn PDF document text
- http://xuxufawa.22web.org/40169581567.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4382620/normal_600ca4a6600fd.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4485440/normal_5fce732c403e1.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4446924/normal_5fef8e5e962a1.pdfIn PDF document text
- http://helpforteam.com/learn_php_html_cssf1pc0.pdfIn PDF document text
- https://dunogijejuj.weebly.com/uploads/1/3/0/8/130813547/niturefufanil-baxek-muzunuvokoki.pdfIn PDF document text
- http://feedbacrnz.space/eat_it_all_gifsvx8c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4385214/normal_60109bf9f2e48.pdfIn PDF document text
- http://blu-ital.space/combien_dieu_est_grand_shirvz04z.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4495839/normal_600d9a0ad4db5.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4408348/normal_5feb337d0a7db.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://s3.amazonaws.com/genedonapubefe/bujuwazutafipanowexodime.pdfIn PDF document text
- https://s3.amazonaws.com/kigavanus/rilivewofikavexaka.pdfIn PDF document text
- http://mamitepibo.epizy.com/75179465291.pdfIn PDF document text
- https://s3.amazonaws.com/jotizifime/cakephp_save_date_format.pdfIn PDF document text
- http://sujotoginejo.rf.gd/31964006570.pdfIn PDF document text
- http://moliposapivar.epizy.com/malasalulepaxafi.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_off0000e22b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE22B	4920 bytes
SHA-256: `d120c453f8c64083a9c74de39f28f02e38346765790d886eab0fe18310326bad`
`font_01_sfnt_off0000f2c6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF2C6	10496 bytes
SHA-256: `342479a7d114abdfef4a9e79964a4673e44d29f58b7b26fafcea6a71b26a7b09`
`font_02_sfnt_off000116b9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x116B9	4324 bytes
SHA-256: `1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e`

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