Malicious PDF — malware analysis report

Static analysis result for SHA-256 01aab8b6c204a0c9…

MALICIOUS

PDF

91.5 KB Created: 2021-03-09 11:11:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e95c0b1c311ee8a9c77d43b30a5c0bdb SHA-1: d291ea2bcec4085295502bc2092b1fc38a14d415 SHA-256: 01aab8b6c204a0c99f3996cc5f81b5180e45648542d70c167c3bade08e4bca58
96 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 high likelihood of malicious intent. The presence of external URIs, including one pointing to 'nipisod.ru', suggests it's used for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a malicious document, likely delivered via spearphishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://nipisod.ru/123?utm_term=latest+chinese+movies+2018+free
    • http://sitizinudex.getenjoyment.net/venta_humidifier_cleaning.pdf
    • https://cdn.sqhk.co/rilowikapaz/V85hgd2/cnc_monitor_stand.pdf
    • http://bumufirila.mygamesonline.org/38422819351.pdf
    • https://cdn-cms.f-static.net/uploads/4481408/normal_6019d5dfbcede.pdf
    • https://cdn-cms.f-static.net/uploads/4477167/normal_5fd5ffdbd1e3b.pdf
    • https://cdn.sqhk.co/gafebujeb/68RdWij/51680052746.pdf
    • http://robugipunebib.mygamesonline.org/what_comes_on_a_burger_king_crispy_chicken_sandwich.pdf
    • https://cdn.sqhk.co/kewukapugino/bid6jac/5933857868.pdf
    • http://nowukusox.mypressonline.com/negujuxonetuvojirik.pdf
    • http://kesisofawa.mygamesonline.org/apprendre_la_langue_franais_en_arabe.pdf
    • https://cdn-cms.f-static.net/uploads/4451220/normal_6038358120eaa.pdf
    • https://cdn.sqhk.co/benibavagoge/htKgiig/20417246271.pdf
    • http://xinuvaro.sportsontheweb.net/99291796.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://203e7bc3-08d7-4ecc-a8df-f797e0d4a079.filesusr.com/ugd/d4579c_d921ee01da2e4aa2a2ef224ca2c254d6.pdf?index=true
    • http://jokosen.atwebpages.com/an_introduction_to_game_theory_osborne_download.pdf
    • https://59bb578d-b312-442a-858b-1a1a54b18a6c.filesusr.com/ugd/c79b1c_5e4c630a48404a088f5cfcb6f29d7c78.pdf?index=true
    • https://s3.amazonaws.com/lowebemuwojiso/56189115109.pdf
    • https://56db2a4d-09ce-4ff6-a558-abb1d6727cd4.filesusr.com/ugd/003b86_3ea94d01229b4ffb86c1d12c16748ca8.pdf?index=true
    • http://bebovufuvuji.myartsonline.com/narefumanowi.pdf
    • https://s3.amazonaws.com/warapagefasovi/9983781296.pdf
    • http://kesolimasakifi.myartsonline.com/what_is_the_jesuit_oath.pdf
    • https://s3.amazonaws.com/lebaxa/gangster_movie_song_ya_ali_ringtone.pdf
    • https://b7e73dfe-ad35-4791-b4f7-7500f5b7882c.filesusr.com/ugd/bc79a4_cbf715ccd9c64ab68979f716d2de0f9f.pdf?index=true
    • https://s3.amazonaws.com/tomamujuf/apartment_search_android_app.pdf
    • https://e216d865-ddc7-438b-99b2-64609380b1bb.filesusr.com/ugd/7ae8b3_5577f79f20e9414086d1b8559f19a663.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f9ca.bin
90853fb16c9e42e61cc969d289fd74bf9e77d24413c1de50e7fcea4d511253a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF9CA 13960 bytes
font_01_sfnt_off00012697.bin
c5a48faee86c061d59a9ed2f68c982598ebae8a4f24983405d823aa6986ef878		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12697 5612 bytes
font_02_sfnt_off00013991.bin
3748ef096e556da8354b9e2528a77e3973a70a556a0cb2f720f3e5e4d4c1be5d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13991 10736 bytes

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