Malicious PDF — malware analysis report

Static analysis result for SHA-256 21ee9264b3e42091…

MALICIOUS

PDF

86.8 KB Created: 2021-03-30 01:44:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d78f6e098e0a3a7c5a0ff596c7f9eb3 SHA-1: 510aa7dbb94f67f893972dbc4a5d40016a07394e SHA-256: 21ee9264b3e4209194679d1aa42681f572a5330e665f1b7402092b64bcd65a1d
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URL disguised as a search result. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The presence of numerous unknown URLs suggests a campaign to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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://resalured.ru/wix?keyword=tiger+simulator+apkpure
    • https://ginadilu.weebly.com/uploads/1/3/4/7/134768391/tigoloxeditupi.pdf
    • http://devgm.design/g_shock_rangeman_blackout_price_malaysiao9f6a.pdf
    • http://koponegigat.medianewsonline.com/how_long_should_i_charge_airsoft_battery.pdf
    • http://gnoogle.site/nopedozurepaq7l3.pdf
    • http://basiditdcf.space/how_long_is_pals_renewalkuvow.pdf
    • http://j3vnci4.xyz/nippon_paint_cataloguezrrtc.pdf
    • https://cdn.sqhk.co/manizamo/7hdiJjd/zopowolupijo.pdf
    • https://vevikonupefafo.weebly.com/uploads/1/3/5/3/135391347/palikoti.pdf
    • http://lesantyqas.online/xirini6avdq.pdf
    • https://kopaluzakiletal.weebly.com/uploads/1/3/0/7/130739322/viwopetaxe.pdf
    • http://all-host.site/fedex_customer_service_number_live_personmiayc.pdf
    • https://ludopugadataz.weebly.com/uploads/1/3/4/7/134709803/rivizux.pdf
    • http://pewadulojuba.mypressonline.com/sample_resume_for_assistant_professor_fresher.pdf
    • https://cdn.sqhk.co/sirijunubi/c2hibeO/pufuvovajezek.pdf
    • https://vunesexub.weebly.com/uploads/1/3/4/4/134442538/xasig_zujasapetixeg_jojixufub_kelofutepodu.pdf
    • http://pemotutafid.mywebcommunity.org/beowulf_cluster.pdf
    • https://cdn.sqhk.co/jurugaguvedu/mijclie/pac_12_golf_championship_2019_scores.pdf
    • http://fubikopelemom.mypressonline.com/rigupemilijobexiziros.pdf
    • http://dfahsdfgjsfg.online/moto_bike_attack_race_apk6i5ox.pdf
    • https://cdn.sqhk.co/rugugojeba/g4jbgjM/nostalgia_ultra_frank_ocean_cd.pdf
    • http://lerob.info/skin_infection_treatment_nice_guidelines6r92o.pdf
    • https://cdn.sqhk.co/domuduxuro/fxdjj4n/soft_ginger_cookie_recipes_molasses.pdf
    • http://instapresent.site/ladekevy46dc.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/wunupalezozerud/56146152403.pdf
    • https://s3.amazonaws.com/daxemo/77540510400.pdf
    • https://s3.amazonaws.com/kozibowisenatu/transformers_optimus_prime_power_of_the_primes.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
    • 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_off0000f009.bin
7093505d9dae54f2db9284c694de6b24c14f7bfbced873ea45db8a072061733f
pdf-font-stream PDF embedded font (sfnt) at offset 0xF009 5152 bytes
font_01_sfnt_off00010179.bin
27245ec55c5b397241468c212efe918d04a83f7e7cc9f352d7a857c3c0701ab1
pdf-font-stream PDF embedded font (sfnt) at offset 0x10179 4728 bytes
font_02_sfnt_off0001125d.bin
87330ba67b3b56ad0c8bc15cf226630af1f1674c58e75c44df23c9de8d2466a2
pdf-font-stream PDF embedded font (sfnt) at offset 0x1125D 10608 bytes
font_03_sfnt_off0001369f.bin
9af6fc3bf9d751f70540aea0fa47faa159a3604992cda23d2adcda3ffc5346b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x1369F 16092 bytes