Malicious PDF — malware analysis report

Static analysis result for SHA-256 49abbaa2d2063027…

MALICIOUS

PDF

88.8 KB Created: 2021-03-15 08:49:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 5c3a7eb91cafe8cf51e05305311d46ea SHA-1: 96440577246d763a5010df844ff87f0c9f6b36e8 SHA-256: 49abbaa2d20630279fd788c0a95ec2ed52623ebc88a4e970a8789316b07c8632
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, specifically as a phishing trojan. It contains numerous embedded URLs, with 'https://botokaw.ru/wix?keyword=raze+2+games' and 'http://magnitoli-2ekran.site/60081397706pb6s2.pdf' being prominent examples. The document body, though heavily obfuscated, suggests a lure related to 'Raze 2 games', indicating a potential social engineering tactic to drive users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://botokaw.ru/wix?keyword=raze+2+games PDF link annotation
    • http://magnitoli-2ekran.site/60081397706pb6s2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378157/normal_5ffc4b5263dfe.pdfIn PDF document text
    • http://newyearshop.site/cheer_rules_and_expectationsc0wi5.pdfIn PDF document text
    • https://cdn.sqhk.co/gasajolop/jaSbXha/antibodies_are_formed_in.pdfIn PDF document text
    • https://cdn.sqhk.co/lizasizova/djggf0K/birthday_video_collage_maker_online_free.pdfIn PDF document text
    • http://mokaxizekebade.scienceontheweb.net/37934173878.pdfIn PDF document text
    • https://cdn.sqhk.co/rajunakeb/EthfgdE/67160369294.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417818/normal_60348d0c7c51b.pdfIn PDF document text
    • http://it50discount.pro/split_rows_into_sheets_exceln5tva.pdfIn PDF document text
    • https://cdn.sqhk.co/merutigujet/iQhdieu/kung_fu_panda_2_animal_characters.pdfIn PDF document text
    • http://nijaxubazaziw.mypressonline.com/malikawenusuwonivino.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388598/normal_5fe25ea350b78.pdfIn PDF document text
    • http://skout.tech/797486685971ai4x.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378170/normal_5fcbec2c86882.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450345/normal_602d4ce9530b6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490949/normal_5fe8f66079fc9.pdfIn PDF document text
    • http://nitesufi.sportsontheweb.net/makuzasewotap.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4505125/normal_60298466c025b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452846/normal_5fd2c4464dac3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://f1c0478e-57b3-422a-b8eb-433964b677d2.filesusr.com/ugd/16c17d_3b1d401f97ee470e821803bb7e6c3e3b.pdf?index=trueIn PDF document text
    • https://9e6c4f0b-3406-4274-bf8a-5be7f948d240.filesusr.com/ugd/45c6ff_c8dbc627d71d4512bfbcb032c0c31976.pdf?index=trueIn PDF document text
    • https://b9e1b105-38e0-4bbf-baad-90de1e2021e1.filesusr.com/ugd/432b07_33a3a40dae184f75b622d6ec78f9635f.pdf?index=trueIn PDF document text
    • https://2efabd41-1f95-43d0-8245-5f8eb9267247.filesusr.com/ugd/2f4ddf_87d16e7866254256bc758259b66ca868.pdf?index=trueIn 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
    • 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.

FilenameKindSourceSize
font_00_sfnt_off000109e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109E1 5068 bytes
SHA-256: f655a263bc6ee2a54b99a47e894b4ab22f4799a8b079c9691aa79bb3eaf02f93
font_01_sfnt_off00011b20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B20 10636 bytes
SHA-256: 411087a1a283db0db9d9499f635b254990ee2edadcce69575e47c8e73f085ccb
font_02_sfnt_off00013fd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13FD3 16408 bytes
SHA-256: 53913d05bbaab9111cdeaa50482a5442f7fcff6829cbddc1b4b71fd73d97b914