Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebcf60b5107c3df6…

MALICIOUS

PDF

222.8 KB Created: 2021-03-30 08:51:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 60777045d1a46e43e3e90d45a541163f SHA-1: 4ffeb8e92b5b1cc4e96642e3e556f4b2d9910616 SHA-256: ebcf60b5107c3df66e0fad498429d11ce4f97f3440a4c809db3d168043b8a25f
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. It contains an embedded URL pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, references 'nacho libre cart gif', suggesting a lure to disguise the malicious nature of the PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9932

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=nacho+libre+cart+gif
    • https://cdn.sqhk.co/lazodadevab/Okojh5P/artillery_shell_fireworks_wholesale.pdf
    • http://ru-1.casa/durimojilizigwthne.pdf
    • http://banquepopulaire-fr.org/ethical_hacking_degree_scotlandvf35b.pdf
    • https://cdn.sqhk.co/dibirolinu/tKxpgdf/nalatoguxojafadonuzevez.pdf
    • http://xesapuwax.mywebcommunity.org/vupuxikejobibewejipo.pdf
    • http://sovuradema.medianewsonline.com/87631451851.pdf
    • https://cdn-cms.f-static.net/uploads/4405654/normal_600b9f402c54e.pdf
    • http://trycabinets.xyz/how_many_calories_should_you_eat_based_on_gender_age_and_activity_levelynbru.pdf
    • https://komuwewolidixat.weebly.com/uploads/1/3/4/8/134871085/wezajunawunemefemi.pdf
    • http://jusolul.22web.org/ledute.pdf
    • https://cdn-cms.f-static.net/uploads/4369779/normal_60360ffc922aa.pdf
    • https://cdn.sqhk.co/bomemenun/jh5kge2/pikusofaduwotudedekijim.pdf
    • https://static.s123-cdn-static.com/uploads/4486200/normal_5fde10ad6bcf2.pdf
    • http://ziwigosopijulal.mygamesonline.org/wumaxibexit.pdf
    • https://wabegikabakupoz.weebly.com/uploads/1/3/4/6/134668284/kabisujawe.pdf
    • https://cdn.sqhk.co/tuwebobit/ghXGX2D/soxupifatifasukigelolur.pdf
    • https://vituxusupodewe.weebly.com/uploads/1/3/1/3/131379836/534333.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://musomowelego.epizy.com/85874760935.pdf
    • http://vejimugar.epizy.com/kisner_and_colby.pdf
    • http://dapunujunet.epizy.com/8474277434.pdf
    • http://tuxavilewik.rf.gd/biblioteca_catolica_digital.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_off00032254.bin
78dda869b2a7043d692eb49043d8c6997e80a2536044dd544734223a75e6d357
pdf-font-stream PDF embedded font (sfnt) at offset 0x32254 4756 bytes
font_01_sfnt_off00033295.bin
01e568491b41363e4b5276f5d62db1e1c27102f6295132424c0d0940e4c4d85c
pdf-font-stream PDF embedded font (sfnt) at offset 0x33295 13736 bytes
font_02_sfnt_off00035eb6.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x35EB6 4324 bytes