Malicious PDF — malware analysis report

Static analysis result for SHA-256 5989c89ec4bd1694…

MALICIOUS

PDF

65.9 KB Created: 2021-03-18 17:28:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0ebc891510230f725a395316d5075966 SHA-1: e44f56c7aeb940bee4522110fbb94e852fcaa7ca SHA-256: 5989c89ec4bd169487bf2056e5bb1deafb719c0e8463644d9890e2624bb74516
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, suggests a lure related to maps and documents, likely to trick users into visiting the external URL for malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://maypoin.ru/wix?keyword=blank+doc+with+continents+and+oceans+map+pdf
    • http://tibudirowe.mygamesonline.org/sbac_practice_test_5th_grade_math.pdf
    • http://zumepaposakuf.scienceontheweb.net/orbit_conserve_watering_timer_instructions.pdf
    • http://benosetib.iblogger.org/3461949648.pdf
    • http://xafesuvorolivig.scienceontheweb.net/oh_how_i_love_thee_meaning.pdf
    • http://neluvukod.22web.org/47452587577.pdf
    • https://cdn.sqhk.co/suxujaba/i0ggfjh/33523429627.pdf
    • http://neo-tp.ru/vector_image_formatsf9ke.pdf
    • https://cdn.sqhk.co/dajebala/hhiazic/tomatavexuvafezizagora.pdf
    • http://vivekawiga.sportsontheweb.net/how_to_remove_kohler_shower_head_flow_restrictor.pdf
    • http://filitopalanima.22web.org/57907215998.pdf
    • http://boost-shop.xyz/netgear_gs116lp_price4k31d.pdf
    • https://cdn.sqhk.co/mubutuve/ibvLPvy/32593948728.pdf
    • https://cdn.sqhk.co/padezeda/gpjjQsJ/destiny_summoner_mod_hack.pdf
    • http://vilajesakere.iblogger.org/washington_state_lottery_winning_numbers.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/rumezo/sevudapunogupodilufitaw.pdf
    • https://s3.amazonaws.com/jevelel/98258852251.pdf
    • http://megalikivokilir.rf.gd/vizofamavi.pdf
    • https://s3.amazonaws.com/vatakefojunib/55675266116.pdf
    • http://nodonukebonona.epizy.com/os_blackberry_9320_all_language.pdf
    • https://s3.amazonaws.com/mogedozara/how_to_say_mother_trucker_in_spanish.pdf
    • http://jagazasa.epizy.com/hp_1320n_windows_10_driver_download.pdf
    • http://wutivufugisev.epizy.com/mozudarutinazudujuka.pdf
    • https://s3.amazonaws.com/sezewu/79042224868.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c59a.bin
1fe9fa5a71d7a96963f8216cfead862dd64831dcb05b2c505b526a7a6b840b1d
pdf-font-stream PDF embedded font (sfnt) at offset 0xC59A 5504 bytes
font_01_sfnt_off0000d843.bin
cf1bf8fe6078401a9744caf60e165c109e0c806dcd3017c6f6c4fa4ee7797085
pdf-font-stream PDF embedded font (sfnt) at offset 0xD843 9876 bytes