Malicious PDF — malware analysis report

Static analysis result for SHA-256 94002128be55ec9a…

MALICIOUS

PDF

91.3 KB Created: 2021-04-07 20:40:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 31d5dbf394a0c06af7729417790522e0 SHA-1: dc6deeca2f33817852b737b25f384b63387b1034 SHA-256: 94002128be55ec9ab72bc9a6e99881a7969ea8a01016b8944942d8aeb1c70572
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document identified as malicious by ML classifiers and ClamAV. It contains an embedded URL pointing to a suspicious domain, likely intended to host phishing content or a secondary payload. The document body, though heavily obfuscated, suggests a lure related to 'interview questions', aligning with common social engineering tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://lozipotod.ru/aws?utm_term=interview+questions+to+ask+manager+candidates
    • https://cdn.sqhk.co/kedetofido/iNhe7hh/download_super_jump_soccer_mod.pdf
    • http://nadipewin.mywebcommunity.org/fakimavojelaweb.pdf
    • https://cdn.sqhk.co/melipetoluf/heiHSKi/premier_league_top_goal_scorer_2019_to_2020.pdf
    • http://rudovatimokasum.medianewsonline.com/adobe_creator_pro_download_free.pdf
    • http://wugupomovupa.sportsontheweb.net/11360651397.pdf
    • http://dupuladusudired.mypressonline.com/how_to_connect_my_dell_bluetooth_mouse.pdf
    • https://cdn.sqhk.co/neviragar/gjcrich/weeds_cast_season_3_episode_13.pdf
    • http://fizarumokugafu.mywebcommunity.org/79564754775.pdf
    • http://nukapag.getenjoyment.net/93491961488.pdf
    • http://veselutut.mywebcommunity.org/dopamifewabidakoserako.pdf
    • https://cdn.sqhk.co/jawafurovif/hhAicqh/63991147559.pdf
    • https://cdn.sqhk.co/xaselavub/jbgfXhc/51943646012.pdf
    • https://cdn.sqhk.co/wefegiwezon/ggCw6JV/4843975724.pdf
    • https://cdn.sqhk.co/mawejoxejobe/6hcaggH/my_singing_monsters_toys_3_pack.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/df2955bf-b019-400e-857f-8a7242706696/what_difference_between_bacteria_and_viruses_shows_that_bacteria_are_living_organisms.pdf
    • https://s3.amazonaws.com/nefagolom/renaissance_timeline_worksheet.pdf
    • https://s3.amazonaws.com/zategafozasiru/niromajija.pdf
    • https://s3.amazonaws.com/tibanepoxilibud/82729541706.pdf
    • https://uploads.strikinglycdn.com/files/20333c0a-a772-47de-af05-6ba678d9f6c0/94918557969.pdf
    • https://uploads.strikinglycdn.com/files/258c4bf5-1917-4e27-bf4c-c75b310f27fa/49036670537.pdf
    • https://s3.amazonaws.com/fedojigudaj/avast_offline_definitions.pdf
    • https://uploads.strikinglycdn.com/files/8199870d-fa59-42af-a3ea-bec45f1b4101/sony_bdp-s3200_precio_mexico.pdf
    • http://ziwivazud.onlinewebshop.net/6873540694.pdf
    • 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_off00011878.bin
ed35b3c9b7732bd8efa48ffc4b998a30c7ba48d9dc5c80f8607923e274dc7d36		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11878 5388 bytes
font_01_sfnt_off00012ac2.bin
7041791cba1f0be8fba08b42fa134a1b2412ce3a6085864c83d7389585d18347		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12AC2 10856 bytes
font_02_sfnt_off00014fb2.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14FB2 4324 bytes

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