Malicious PDF — malware analysis report

Static analysis result for SHA-256 acfd423635e7262d…

MALICIOUS

PDF

78.1 KB Created: 2021-03-03 18:40:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 375f880a1339fdd2d74bbd65c28795bf SHA-1: d0b14ebd74378f4da575c9f101fc24dddcd1d8a8 SHA-256: acfd423635e7262dfb2c4c3caeb7ffe46543e413661389549fae797e7bcb25c7
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs, with one prominent URL pointing to a domain associated with phishing or malware distribution. The document body, though heavily obfuscated, contains text that suggests a lure related to a 'job guide', aligning with common phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://botokaw.ru/wix?keyword=virtual+families+2+job+guide
    • https://cdn.sqhk.co/zifeduwa/eX3sKjg/final_fantasy_vii_remake_pc_gameplay.pdf
    • http://paksorond.xyz/samsung_q7_series_65_inchf7qgt.pdf
    • http://jakartapro.xyz/82965844173epcs.pdf
    • https://cdn.sqhk.co/jumivosokigo/dzjdjjL/bezezuteluxiz.pdf
    • https://cdn-cms.f-static.net/uploads/4369775/normal_601be30652933.pdf
    • https://cdn.sqhk.co/vufisolepu/heghymM/my_wild_pet_online_animal_sim_mod.pdf
    • http://aydym.club/char_broil_infrared_grill_parts_igniter_not_workingwi2sz.pdf
    • https://cdn.sqhk.co/wolonevavaru/waIqmie/lebara_new_sim_card_same_number.pdf
    • http://prolac.ru/redekazinuxexapeit4yv.pdf
    • https://cdn.sqhk.co/rusobotakox/jeAMgtA/41075807980.pdf
    • https://cdn.sqhk.co/lemijexo/rUhcgck/sovobunumepavikivaro.pdf
    • http://vereffka.xyz/difijatakesemorekofaricb5xo.pdf
    • https://jadetikoj.weebly.com/uploads/1/3/5/3/135350844/3112d.pdf
    • https://cdn.sqhk.co/zipirevofu/DWnc1jh/kajutitorilakog.pdf
    • http://tourist.fish/sonic_the_hedgehog_game_genie0idw5.pdf
    • https://rizomoxus.weebly.com/uploads/1/3/4/5/134589692/8dc927f41.pdf
    • http://effektzhizni.ru/air_cadet_uniform_standardsf2tnx.pdf
    • http://werenntaq.online/define_conquest_in_social_studies08puk.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • 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_off0000e740.bin
5b4086ed3b3570b2df130422d9060303e34d2132d0c3ae439e6b43ae4fb0a17d
pdf-font-stream PDF embedded font (sfnt) at offset 0xE740 5316 bytes
font_01_sfnt_off0000f95d.bin
320598654fadb5b0e13e3adbeef82189e1d3058420a6ab5264b86ecf9c9a6429
pdf-font-stream PDF embedded font (sfnt) at offset 0xF95D 10564 bytes
font_02_sfnt_off00011d84.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x11D84 4324 bytes