MALICIOUS — brennan_high_school_colors.pdf
MALICIOUS — brennan_high_school_colors.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (72/100). 3 of 53 detection engines flagged it, exhibiting 2 ATT&CK techniques.
Identification
- SHA-256:
692540688e4f673dab3875b47aaf02563246d6bbb33696478a229a736fad9aed - SHA-1:
85674e5c912dbaef30e65cbc2468c8d0095008b7 - MD5:
8d4a62519a6b96cfaad41a13eab3c187 - ssdeep:
768:MgGzpDwp6Q0vhuA4e8de7VlDWVRyLrflzHENZLtantUGyIoT796o4RPLYT5b9KTF:JGFkp6QjVfNCuGyIoP9yLYT5bHWCOcjU - TLSH:
T129328CF34097ED4D7A8E6F07AEEB00A96489D68C613796A008CD767CD47C2FC6E10661 - Submitted as: brennan_high_school_colors.pdf
- File type: pdf · Size: 47399 bytes
- Verdict: malicious (72/100)
Detections (3 of 53 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
- Emsisoft (Emergency Kit): PDF.Spam.Heur.1
- Kaspersky (KVRT): HEUR:Trojan.Script.Generic
MITRE ATT&CK
Why this verdict
The malicious score of 72/100 is the fusion of 6 weighted signals:
- Contacted 12 external host(s) at runtime (4 HTTP) - network signal, weight 0.40, confidence 0.80
- Embedded link rated suspicious by URL analysis: https://cdn-cms.f-static.net/uploads/4371025/normal_5f885230e51b8.pdf - network signal, weight 0.40, confidence 0.60
- Embedded network infrastructure: https://cctraff.ru/strik?keyword=brennan+high+school+colors, https://cdn-cms.f-static.net/uploads/4374839/normal_5f90fc790ee6b.pdf, https://cdn-cms.f-static.net/uploads/4368242/normal_5f946bf554e69.pdf - static signal, weight 0.35, confidence 0.60
- Document active content: uri-action - static signal, weight 0.30, confidence 0.60
- Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55
- Extracted generic config (7 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
9706 behavior events · 0 ATT&CK techniques · 3 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- to-do.office.com
- staging.to-do.officeppe.com
- teams.cloud.microsoft
- outlook.office.com
- outlook.office365.com
- outlook.cloud.microsoft
- desktop-hsgcbep
- 2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 79.243.254.169.in-addr.arpa
- 255.255.254.169.in-addr.arpa
- 252.0.0.224.in-addr.arpa
- desktop-hsgcbep._dosvc._tcp.local
- ntp.ubuntu.com
- 250.255.255.239.in-addr.arpa
Dropped files
- C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt -
d5bc0fa0df983f677808df222157a77fa97edfaebfc52706309793ff0e13c4ba - C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\aaeaf3e7dd8bd85d426a237a992b11b8.png -
c1f8ece8943c1c706583ec021a3e1b999aacb03864c004ad2b3e770149dc8973 - root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- https://cctraff.ru/strik?keyword=brennan+high+school+colors
- https://s3.amazonaws.com/xanebavifamopez/36550656665.pdf
- https://s3.amazonaws.com/dobesogum/rapidex_english_speaking_course_in_gujarati.pdf
- https://s3.amazonaws.com/mijedusovineti/5052686228.pdf
- https://s3.amazonaws.com/jamokaroxoj/diploma_in_automobile_engineering_books_free_download.pdf
- https://s3.amazonaws.com/xifabilejilab/the_adventures_of_tom_sawyer_book.pdf
- https://cdn-cms.f-static.net/uploads/4374839/normal_5f90fc790ee6b.pdf
- https://cdn-cms.f-static.net/uploads/4368242/normal_5f946bf554e69.pdf
- https://cdn-cms.f-static.net/uploads/4371025/normal_5f885230e51b8.pdf
- https://s3.amazonaws.com/vibuvomomuv/les_cathares.pdf
- https://s3.amazonaws.com/jazofi/bajana_songs_telugu.pdf
- https://s3.amazonaws.com/rerinago/rewujigit.pdf
- https://s3.amazonaws.com/falufusu/38873433958.pdf
- https://uploads.strikinglycdn.com/files/cf235497-db77-45d7-b6fb-e946c2b94de5/kijeredogox.pdf
- https://uploads.strikinglycdn.com/files/2a9b396d-4d8a-434e-bd82-11c38948630c/87129315094.pdf
- https://uploads.strikinglycdn.com/files/60d3966a-ab25-4115-a550-75e1164a8db7/natagopavogamosetonu.pdf
- https://cdn.shopify.com/s/files/1/0499/8037/5211/files/ralidegusegaxelajagakim.pdf
- https://cdn.shopify.com/s/files/1/0433/4105/4105/files/bozuso.pdf
- https://cdn.shopify.com/s/files/1/0268/7995/1038/files/download_network_signal_speed_booster_apk.pdf
- https://cdn.shopify.com/s/files/1/0486/4665/2062/files/wigunuzekelirumalokuro.pdf
- https://s3.amazonaws.com/rekawexuretowo/37915294226.pdf
- https://s3.amazonaws.com/wewuxuviwar/7194022645.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/
Embedded domains
- cctraff.ru
- s3.amazonaws.com
- cdn-cms.f-static.net
- uploads.strikinglycdn.com
- cdn.shopify.com
- www.w3.org
- purl.org
- ns.adobe.com
Embedded IP addresses
- 135.233.95.80
- 172.172.255.218
- 72.154.7.102
- 52.182.143.212
- 4.155.94.154
- 4.230.171.124
- 135.232.92.137
- 74.178.76.54
- 20.231.239.246
- 52.123.129.14
- 72.145.35.99
- 203.26.79.13
Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report