Analysis
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max time kernel
136s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
31-05-2023 13:16
Behavioral task
behavioral1
Sample
bNcd.exe
Resource
win7-20230220-en
General
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Target
bNcd.exe
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Size
348KB
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MD5
327bb4dfec8cfc425678b2a9afc6d592
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SHA1
da7e52a4666e8fb50f04453e2966954f2aeb9174
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SHA256
575a2f0d48c457c8dcc8d5ef5a964adbb50b48c7dda5d35592e1db58f8401a98
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SHA512
daeae0c7ddaf892576a0f7e51898c666dfa139ec37f311996ff57119b0a98e48bdd6e56e191ed40bc2882a77715845fe875ed0bd2fab16e805669055cd67f9c0
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SSDEEP
6144:37qQ4i1FFiEK5zLuDl+BTlbRjlV4dFsiz7fKUB+q:rpliRySvIsi/fKUcq
Malware Config
Extracted
quasar
1.3.0.0
Office04
cryptersandtools.ddns.com.br:5552
QSR_MUTEX_PV7LCoiUmiwD1RBPCq
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encryption_key
2yfSzdUNgSe9EVCk7VEH
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Quasar Client Startup
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subdirectory
SubDir
Signatures
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Quasar payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/2392-133-0x0000000000B00000-0x0000000000B5E000-memory.dmp family_quasar -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 20 ip-api.com -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
bNcd.exedescription pid process Token: SeDebugPrivilege 2392 bNcd.exe
Processes
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/2392-133-0x0000000000B00000-0x0000000000B5E000-memory.dmpFilesize
376KB
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memory/2392-134-0x0000000005A70000-0x0000000006014000-memory.dmpFilesize
5.6MB
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memory/2392-135-0x0000000005560000-0x00000000055F2000-memory.dmpFilesize
584KB
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memory/2392-136-0x0000000005680000-0x0000000005690000-memory.dmpFilesize
64KB
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memory/2392-137-0x0000000005600000-0x0000000005666000-memory.dmpFilesize
408KB
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memory/2392-138-0x0000000006540000-0x0000000006552000-memory.dmpFilesize
72KB
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memory/2392-139-0x0000000006970000-0x00000000069AC000-memory.dmpFilesize
240KB
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memory/2392-140-0x0000000005680000-0x0000000005690000-memory.dmpFilesize
64KB
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memory/2392-141-0x0000000006B30000-0x0000000006B3A000-memory.dmpFilesize
40KB