SUSPICIOUS — registered_client_service_associate_ubs.pdf
SUSPICIOUS — registered_client_service_associate_ubs.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a suspicious verdict (68/100). 3 of 53 detection engines flagged it, exhibiting 2 ATT&CK techniques.
Identification
- SHA-256:
b7ea4951fccf38be1435d4aee49356579c8796fb052a390a00dd512d266ee6d6 - SHA-1:
962e9bdedcc2885f3e3af3e0b35409f233318d37 - MD5:
e12bfa092cec2bdc95bb983d6d21fbec - ssdeep:
768:tgGzpDfpw5WpfGtX43WKGaiMme6vDWaVmi75MT8LCcp33CpzIOPyoj5XdQHQF:OGFDpw5Mr6bWaVmiuT8LP3CpzxaojDQC - TLSH:
T173328DF350A7ED8C768B6B176EA7159D908AD3896036D7A4408C376CD4BC6FC7E00A21 - Submitted as: registered_client_service_associate_ubs.pdf
- File type: pdf · Size: 45479 bytes
- Verdict: suspicious (68/100)
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 suspicious score of 68/100 is the fusion of 6 weighted signals:
- Contacted 20 external host(s) at runtime (1 HTTP) - network signal, weight 0.40, confidence 0.80
- Embedded network infrastructure: https://cctraff.ru/strik?keyword=registered+client+service+associate+ubs, https://cdn-cms.f-static.net/uploads/4366036/normal_5f89c3609f84d.pdf, https://cdn-cms.f-static.net/uploads/4371261/normal_5f9307ee6dbf7.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
- Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90 - Extracted generic config (11 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
9667 behavior events · 1 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
- ntp.ubuntu.com
- 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
- 252.0.0.224.in-addr.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
- desktop-hsgcbep
- 250.255.255.239.in-addr.arpa
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
- http://203.26.79.13/filestreamingservice/files/753bb2df-a166-494f-aa7d-5678b1ef0c56?P1=1787483776&P2=404&P3=2&P4=KoSH3bY6h7PhEZlIaHrgTPG0PNBBaX3%2bkF6AJ07%2bIA1hgYi2rMOlU%2fMgmsBL74%2biOF%2f6TAdTafeUA9Gfd0XzAw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Dropped files
- C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\19f63bb29b89302f3fb782e8f76e2a6f.png -
96d99a0e8f636aa11199152272ce5659a91c3a53831483edb009ab64ecf873bf - C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt -
0ac64b5a4013bcc974e08780300ca122470fa7e8cdeb1a8267924e61dd0d9f23 - root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- https://cctraff.ru/strik?keyword=registered+client+service+associate+ubs
- https://cdn-cms.f-static.net/uploads/4366036/normal_5f89c3609f84d.pdf
- https://cdn-cms.f-static.net/uploads/4371261/normal_5f9307ee6dbf7.pdf
- https://cdn-cms.f-static.net/uploads/4369330/normal_5f919a7523f5c.pdf
- https://uploads.strikinglycdn.com/files/b162d249-a46a-484c-b0fe-f68f8fa4a48c/37185560836.pdf
- https://uploads.strikinglycdn.com/files/42cd96a4-64b9-485f-8bee-872d4707fa96/fukodegadafut.pdf
- https://uploads.strikinglycdn.com/files/09351842-6beb-4e63-b910-45e8bce70352/dasekaw.pdf
- https://cdn.shopify.com/s/files/1/0493/5254/0319/files/11854352670.pdf
- https://cdn.shopify.com/s/files/1/0500/0524/6112/files/drupal_cms_tutorial.pdf
- https://cdn.shopify.com/s/files/1/0483/8965/2648/files/craigslist_mn_jobs.pdf
- https://cdn.shopify.com/s/files/1/0492/3057/7817/files/73980071810.pdf
- https://cdn.shopify.com/s/files/1/0430/1049/0519/files/honey_bee_anatomy.pdf
- https://cdn-cms.f-static.net/uploads/4368989/normal_5f8bab5933457.pdf
- https://cdn-cms.f-static.net/uploads/4368244/normal_5f88668ea8045.pdf
- https://cdn-cms.f-static.net/uploads/4389106/normal_5f93a3f6e84fc.pdf
- https://cdn-cms.f-static.net/uploads/4380854/normal_5f8d09bc91449.pdf
- https://jixepelisu.weebly.com/uploads/1/3/2/6/132695865/rubosap.pdf
- https://jipemovikeral.weebly.com/uploads/1/3/4/0/134012889/kakogopuvetatowowa.pdf
- https://tumovapexawezan.weebly.com/uploads/1/3/1/3/131398362/kejuxumuxadu_ruxunewiw_majudige.pdf
- https://nokiziwevapof.weebly.com/uploads/1/3/4/5/134507241/3011916.pdf
- https://naxedomabaxa.weebly.com/uploads/1/3/1/6/131606472/7059084.pdf
- https://tugajepefur.weebly.com/uploads/1/3/1/4/131453805/110597.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
- cdn-cms.f-static.net
- uploads.strikinglycdn.com
- cdn.shopify.com
- jixepelisu.weebly.com
- jipemovikeral.weebly.com
- tumovapexawezan.weebly.com
- nokiziwevapof.weebly.com
- naxedomabaxa.weebly.com
- tugajepefur.weebly.com
- www.w3.org
- purl.org
- ns.adobe.com
Embedded IP addresses
- 20.42.179.192
- 172.172.255.216
- 51.116.246.105
- 135.233.95.80
- 20.42.65.93
- 13.69.109.130
- 52.123.252.232
- 52.123.252.203
- 52.110.12.8
- 4.230.171.124
- 52.230.59.222
- 4.247.188.233
- 74.179.77.204
- 52.123.128.14
- 203.26.79.13
- 162.159.36.2
- 149.154.164.25
- 149.154.165.133
- 149.154.164.24
- 149.154.167.99
Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report