MALICIOUS — 9d4b8fabe8911db3c0c0e7a6c269b24b84ea891663d1895ff3612558e73d5783
MALICIOUS — 9d4b8fabe8911db3c0c0e7a6c269b24b84ea891663d1895ff3612558e73d5783 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Vobfus family. 5 of 55 detection engines flagged it, exhibiting 4 ATT&CK techniques.
Identification
- SHA-256:
9d4b8fabe8911db3c0c0e7a6c269b24b84ea891663d1895ff3612558e73d5783 - SHA-1:
b439610b4b7d05125c3f7cc8c1714545b07b1289 - MD5:
2f5986567dc6444373142d06603ce506 - imphash:
aea69256006e5003eb66eb7505fd85cb - ssdeep:
1536:92dH3UyOEGYf3W2wW4cd9Lv2PElgWBNoN274B/K51UtaHElfTczpqVar1/AgAISJ:2UxS3bzp+cNoN2I0jASI64 - TLSH:
T161429096917195C0D3A69FABBD80EAEDE18F2B5B282AE43C314B990710D30F7597103D - Submitted as: 9d4b8fabe8911db3c0c0e7a6c269b24b84ea891663d1895ff3612558e73d5783
- File type: pe · Size: 212992 bytes
- Verdict: malicious (99/100) · Family: Vobfus
Detections (5 of 55 engines)
- ClamAV (daily): Win.Malware.Vobfus-9756885-0
- Microsoft Defender: Worm:Win32/Vobfus!pz
- Emsisoft (Emergency Kit): Gen:Variant.Symmi.769
- Trellix Stinger (McAfee): VBObfus.ek
- Kaspersky (KVRT): Trojan.Win32.Jorik.Vobfus.ektc
MITRE ATT&CK
Why this verdict
The malicious score of 99/100 is the fusion of 8 weighted signals:
- ClamAV (daily) flagged Win.Malware.Vobfus-9756885-0 (rule
Win.Malware.Vobfus-9756885-0) - engine signal, weight 0.90, confidence 0.95 - 1 behavioral detection(s): Registry Run Key Persistence [high] (rule
tl-run-key) - dynamic signal, weight 0.60, confidence 0.90 - Observed at runtime: Registry Run Key Persistence (T1547.001) (rule
Registry Run Key Persistence) - dynamic signal, weight 0.40, confidence 0.90 - Observed at runtime: Windows Service (T1543.003) (rule
Windows Service) - dynamic signal, weight 0.40, confidence 0.90 - Contacted 26 external host(s) at runtime (25 HTTP) - network signal, weight 0.40, confidence 0.80
- Anti-analysis: T1082, T1622, T1497.001 - dynamic signal, weight 0.40, confidence 0.75
- Dropped 1 executable file(s) at runtime - dynamic signal, weight 0.20, confidence 0.60
- Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
Dynamic analysis (windows)
46863 behavior events · 3 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
- ns1.musiczipz.com
- ns1.musicmixa.net
- ns1.musicmixa.org
- ns1.musicmixb.co
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
Dropped files
- C:\Users\analyst\miioles.exe -
21bca709f35d488ea78d312e89f4c2c3dca4919caa0dfb36ba45b21b16b4c876 - 17b4a56f2501ecfa81a861e35ca213f0b90cb672816abd0f430ec972f15f6468 -
17b4a56f2501ecfa81a861e35ca213f0b90cb672816abd0f430ec972f15f6468 - a7c7ea8787bfa131b6f02913d1c4dfb320b9240e1f87274d58d6bafc55b70d79 -
a7c7ea8787bfa131b6f02913d1c4dfb320b9240e1f87274d58d6bafc55b70d79
Embedded URLs
- 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
- http://203.26.79.13/filestreamingservice/files/753bb2df-a166-494f-aa7d-5678b1ef0c56?P1=1787819752&P2=404&P3=2&P4=M2ywj%2bq52wk6VmHBFSa5fyjOog0qx%2bJyJMUVYZDULQTaf7A3zTYCfRv1l3XMp9JeYAtm4ZKlf2H7BlJAr5mAcg%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/c74a5353-3e6a-42b7-94d6-9b96c560c89a/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/c74a5353-3e6a-42b7-94d6-9b96c560c89a?P1=1787819784&P2=404&P3=2&P4=LmFr1RuFSXZH%2fmfp%2f4TMxFn2vN1C5Mx2oeqhjhrvtt5NNeEux3GXawJI7V%2fLtUuHvbdrC%2fU%2fBMwml%2fpXPG0yqw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/9c0462dd-f6cd-4ff7-a7ac-708d0e9dadc5/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/b56480f9-8215-4de7-ba7e-8e690088d21d/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/9c0462dd-f6cd-4ff7-a7ac-708d0e9dadc5?P1=1787216519&P2=404&P3=2&P4=fpQJCtBIw9bEINLkp%2bYXZCqMnUCZcAT9I9V8rVPxsOXqJzemErf89vnGwc%2buzZgrJyTJcsoqPjT9jlYNyWty4Q%3d%3d&cacheHostOrigin=1D.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/b56480f9-8215-4de7-ba7e-8e690088d21d?P1=1787216140&P2=404&P3=2&P4=UQ3uLP001%2bZVb6qmhGjesoOAwZg91xiErpgRN8V84g540U%2fKAc5oT39xWnOoVpLtNi59IaS3yDQZlqMPZ%2bA6%2fQ%3d%3d&cacheHostOrigin=1D.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- sinainet.com.br
- ns1.musiczipz.com
- ns1.musicmixa.net
- ns1.musicmixa.org
- ns1.musicmixb.co
Embedded IP addresses
- 20.42.65.89
- 172.215.188.225
- 4.230.171.124
- 4.144.132.223
- 4.247.188.224
- 135.232.92.137
- 135.232.92.97
- 20.184.175.19
- 135.233.95.80
- 203.26.79.13
- 52.123.128.14
- 20.76.201.171
- 52.123.129.14
- 172.178.240.163
- 52.123.252.198
- 57.154.63.210
- 52.110.12.51
- 52.148.114.188
- 172.178.240.161
- 72.145.35.111
- 48.199.12.1
- 20.184.175.11
- 20.42.73.25
- 52.168.117.169
- 52.110.12.1
File paths
- C:\Program
More Vobfus samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report