Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fbc8e93988ba0fc…

MALICIOUS

PDF

87.0 KB Created: 2021-03-20 00:15:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5b0087cac52248171f7ade14a2924422 SHA-1: 225831ea95e9f7c0e108ef964b66cb89a77ba71a SHA-256: 1fbc8e93988ba0fcd153ebf321459d2013248316950a06b5e488d45c8ec9ce35
96 Risk Score

Malware Insights

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

The file is a PDF document detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URL that leads to a suspicious domain, likely intended to host further malicious content or phishing pages. The document body, though heavily obfuscated, suggests a phishing lure related to 'chip chan 2019'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9983

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://dafemum.ru/wix?keyword=que+paso+con+chip+chan+2019
    • https://cdn.sqhk.co/mulepava/hbhj6gg/primitive_skate_promo_code.pdf
    • http://gakurijaje.iblogger.org/ca_final_gst_amendments_for_may_2020.pdf
    • http://wemuwetafivaxe.sportsontheweb.net/classroom_rules_worksheet.pdf
    • http://lorozetuwivu.medianewsonline.com/14289846174.pdf
    • https://cdn-cms.f-static.net/uploads/4482623/normal_60436e5c5a0cd.pdf
    • http://jexekiraj.sportsontheweb.net/97501292343.pdf
    • https://cdn.sqhk.co/baxorurifina/3Oijiac/ctet_paper_1_february_2016_answer_key.pdf
    • http://nimuxixoxa.22web.org/chadsvasc_hasbled.pdf
    • http://gejesixave.scienceontheweb.net/zatupuvokevax.pdf
    • https://cdn-cms.f-static.net/uploads/4476946/normal_6051097ac3bd4.pdf
    • https://cdn.sqhk.co/votojuxosaf/YFjaspH/remuzafijirufoxugejuv.pdf
    • https://cdn.sqhk.co/zejegure/iPDd6ic/guide_tactique_pes_2019.pdf
    • http://simopuvoramawu.mywebcommunity.org/nusabasonezuwe.pdf
    • http://medupaj.iblogger.org/harvard_reference_guide_book.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://xemubekimivimed.epizy.com/xujosodujezaka.pdf
    • https://f18b8dc1-3ce9-44bd-8712-01435d039869.filesusr.com/ugd/b97cba_dae62ac787ac4a708d62b29ee781decd.pdf?index=true
    • https://s3.amazonaws.com/werowibovezoje/how_to_make_rhythm_game.pdf
    • https://bf68d742-fb98-404a-ab47-1dcf24f7df52.filesusr.com/ugd/83e7fd_c076edf887c14827a72bdb7df1341df9.pdf?index=true
    • https://s3.amazonaws.com/lemerisinivum/nice_guidelines_hyperlipidaemia_2014.pdf
    • https://434dcbc4-7bd9-40fe-99bf-e102daebf961.filesusr.com/ugd/07ef24_056691b83a234f94be3e8ba54b76859d.pdf?index=true
    • https://2a4065d7-883d-43e8-a524-7ce9aa4b4e88.filesusr.com/ugd/ccb1c6_83ee7e2ea2484dc2a464c94ce609f814.pdf?index=true
    • http://renulekefa.epizy.com/31482201092.pdf
    • https://s3.amazonaws.com/banula/susifaxixuzumetonedofawep.pdf
    • https://2d130471-2a64-48ba-87cf-8f1e86c6acad.filesusr.com/ugd/9c43ec_25a09d5ad4b749e28767a616eac8c050.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f06e.bin
a0c3d51fe9a478043544b01f2ebe6e93a7832b8b63d06f46620a42b68eb7f1a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF06E 5236 bytes
font_01_sfnt_off0001022b.bin
ee7b91e0476c39237838e3fc6222435ba216e4735b653329e2ae0e2cc36d87d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1022B 11960 bytes
font_02_sfnt_off00012941.bin
e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12941 16204 bytes
font_03_sfnt_off00013e6f.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13E6F 4324 bytes

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