SUSPICIOUS — rufuraperafenuzawoxub.pdf
SUSPICIOUS — rufuraperafenuzawoxub.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a suspicious verdict (64/100). 3 of 53 detection engines flagged it, exhibiting 1 ATT&CK technique.
Identification
- SHA-256:
740e9fc069564d1825ce51ea5a114ab58b289ff419652587f7882e09f204c4a8 - SHA-1:
f7bd3550b7beeae34bf524914053d95759d790ec - MD5:
0132d946548d5e53a51043092eae5dd9 - ssdeep:
768:lgGzpD2ZcopwiX417nC33AF9DWzmQwP0J4lvytHWO:2GF6hugQbP5lvytHWO - TLSH:
T11C33BFF31053EC4C79CBBF8769A710986556C2896133926898C87E6CC878BFD6E10A61 - Submitted as: rufuraperafenuzawoxub.pdf
- File type: pdf · Size: 51094 bytes
- Verdict: suspicious (64/100)
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 64/100 is the fusion of 5 weighted signals:
- Contacted 18 external host(s) at runtime (8 HTTP) - network signal, weight 0.40, confidence 0.80
- Embedded network infrastructure: https://gettraff.ru/strik?keyword=common+medical+abbreviations+pdf, https://site-1037866.mozfiles.com/files/1037866/folefumoziduz.pdf, https://site-1037233.mozfiles.com/files/1037233/ruvugewobojododekusujiwax.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 (15 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
9693 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
- ntp.ubuntu.com
- _dosvc._tcp.local
- desktop-hsgcbep._dosvc._tcp.local
- desktop-hsgcbep
- 250.255.255.239.in-addr.arpa
- 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(1)._dosvc._tcp.local
Dropped files
- C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt -
7b6dc89a5d6825ad5e7ee2962bfeb060ae9656b1f74386e775b7b46dcb6e52fa - C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\e26fd404e9adfaf61630e261e308873f.png -
3e4f5418c6665756e57455c857c5eabe823dfb016dbcb78852ca934bed97b7ae - root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- https://gettraff.ru/strik?keyword=common+medical+abbreviations+pdf
- https://site-1037866.mozfiles.com/files/1037866/folefumoziduz.pdf
- https://site-1037233.mozfiles.com/files/1037233/ruvugewobojododekusujiwax.pdf
- https://site-1037191.mozfiles.com/files/1037191/2787699985.pdf
- https://site-1036862.mozfiles.com/files/1036862/26350262777.pdf
- https://site-1036646.mozfiles.com/files/1036646/13413861754.pdf
- https://site-1036719.mozfiles.com/files/1036719/50222680125.pdf
- http://files.jnicolespa.com/uploads/1/3/0/8/130874431/8427945.pdf
- http://sufiwukeg.infortifiedglobal.com/uploads/1/3/1/6/131607305/fufurezijabu.pdf
- http://files.food2fun.com/uploads/1/3/1/3/131384709/fijarizetosimiva.pdf
- http://pajener.thaischool.org/uploads/1/3/1/6/131636825/163995.pdf
- http://files.wastegyalstyles.com/uploads/1/3/1/4/131453996/xavivumifug.pdf
- https://uploads.strikinglycdn.com/files/01b46be8-6b66-4745-bb2a-5fa7334266bf/golaboguwuxumixutipuber.pdf
- https://uploads.strikinglycdn.com/files/afccd22d-7bf0-4f17-8320-8f4084d05ece/98684840358.pdf
- https://uploads.strikinglycdn.com/files/5bb05a21-355c-489a-aa18-66c87269fe7b/94195371248.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://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/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
Embedded domains
- gettraff.ru
- site-1037866.mozfiles.com
- site-1037233.mozfiles.com
- site-1037191.mozfiles.com
- site-1036862.mozfiles.com
- site-1036646.mozfiles.com
- site-1036719.mozfiles.com
- files.jnicolespa.com
- sufiwukeg.infortifiedglobal.com
- files.food2fun.com
- pajener.thaischool.org
- files.wastegyalstyles.com
- uploads.strikinglycdn.com
- www.w3.org
- purl.org
- ns.adobe.com
Embedded IP addresses
- 20.165.94.63
- 172.172.255.217
- 20.42.179.204
- 52.110.12.3
- 52.110.12.52
- 4.230.171.124
- 20.247.184.197
- 74.178.76.54
- 74.178.240.61
- 52.123.128.14
- 52.123.252.240
- 72.154.7.17
- 203.26.79.13
- 135.234.160.246
- 4.209.250.170
- 40.79.167.9
- 20.184.175.1
- 52.148.114.188
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report