PDF malware analysis — malicious · 0c0bc169f6fd323c

MALICIOUS

PDF

81.6 KB Created: 2021-03-24 23:41:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02

MD5: 891a744c341f11dfeb8ebcd1f9775552 SHA-1: c7607100de566b4b4324aa67b55d6333781481eb SHA-256: 0c0bc169f6fd323caaac9d21c587533a3f8e4b68b06a63e3d867e6de78e861e7

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or trojan threat. It contains numerous embedded URLs, with a primary one pointing to a suspicious domain ('pelibifir.ru') that is likely part of a phishing campaign. The document's content, though partially obfuscated, suggests a lure related to product warranties, aiming to direct users to malicious sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

Heuristics 5

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 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://pelibifir.ru/wix?keyword=stanley+fatmax+1000+peak+amp+power+station+warranty PDF link annotation
- https://cdn.sqhk.co/kowaziwaso/dgirzrd/lesson_plan_example_high_school_english.pdfIn PDF document text
- http://juborad.mywebcommunity.org/jegelozasimogufup.pdfIn PDF document text
- http://zoluwofemofuper.sportsontheweb.net/dedawulutakelipini.pdfIn PDF document text
- http://dikoxikikalonib.scienceontheweb.net/83431653551.pdfIn PDF document text
- https://cdn.sqhk.co/dewufidabo/ngfTfkn/zajaditowuwabemibimuzoda.pdfIn PDF document text
- http://nexekeb.iblogger.org/gavijotilorojem.pdfIn PDF document text
- https://cdn.sqhk.co/businaxidare/gw5yjdw/all-_in-_one_package_tracking.pdfIn PDF document text
- http://kixiwogazu.sportsontheweb.net/samsung_rugby_2_sim_card_size.pdfIn PDF document text
- https://cdn.sqhk.co/videbamez/NhhEigz/wubexisapipejabadejowunow.pdfIn PDF document text
- https://cdn.sqhk.co/dekaroku/KideiaX/marxist_theory_criminology.pdfIn PDF document text
- http://ferabugajefelam.mypressonline.com/reading_strategies_for_the_ielts_test_download.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://lojubefogugiku.onlinewebshop.net/static_gk_capsule_2020.pdfIn PDF document text
- https://9e269ae7-c3cf-4b9f-bde2-1d9be064b7bf.filesusr.com/ugd/139869_6e48dea2bedd48b3bcafeb38d951af27.pdf?index=trueIn PDF document text
- http://sajorasuxanuvil.epizy.com/tn_employment_card.pdfIn PDF document text
- http://dogefifuga.rf.gd/rengar_build_guide.pdfIn PDF document text
- https://95e354e6-8561-4e52-807b-deb85f3b5fdd.filesusr.com/ugd/ca9b0a_7e3e9c0ef51943439c1de75e5360ab81.pdf?index=trueIn PDF document text
- https://e25b5f36-ee09-4010-8803-019b2853a23b.filesusr.com/ugd/c34eac_5d736eccd02647b887ae2cd5b6dc291c.pdf?index=trueIn PDF document text
- https://7f06b679-e14d-4525-8955-d56a7cf6f710.filesusr.com/ugd/79e5df_1a674ae422dc4c0bb5e2c8d7eba0289b.pdf?index=trueIn PDF document text
- http://rabatelekovufar.myartsonline.com/93840917157.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
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000d85a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD85A	6744 bytes
SHA-256: `127b44c9f93874c96d25eb7ddc4688780d8877ce931cf296363fb5748d8d514b`
`font_01_sfnt_off0000e941.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE941	5668 bytes
SHA-256: `e9701a6ce7332dae234f0edb8d71f83a38d1d94106d77870b276341dcf0d1994`
`font_02_sfnt_off0000fc9d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFC9D	11276 bytes
SHA-256: `eb596afe5498b4397982319a389bf0eecaae3f7a898bd4e5d5afbb4608222f1d`
`font_03_sfnt_off000122c3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x122C3	16204 bytes
SHA-256: `532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e`

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