Analysis
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max time kernel
143s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
19-04-2024 13:37
Behavioral task
behavioral1
Sample
498844e96c76ce422fdb328f5deadd5e0785582cf291c1cf9d32ed15f45fa964.exe
Resource
win7-20240221-en
General
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Target
498844e96c76ce422fdb328f5deadd5e0785582cf291c1cf9d32ed15f45fa964.exe
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Size
348KB
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MD5
b12dcc0b6399196333d30649f325397f
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SHA1
6f208c9b6d3dae57e4c22d5e319db0d237feb909
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SHA256
498844e96c76ce422fdb328f5deadd5e0785582cf291c1cf9d32ed15f45fa964
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SHA512
f7e1cd332733a28636439775e501870b5a9d90899357ee27ed51a647c15be614bcdbcfc5acef7fc0b3085ecca2a45eb1496ec88e26cfe6e08c9b4c2bf6198146
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SSDEEP
6144:67qQ4i1FFiEKyK5ALbddCEaBHGdNXUnO:8plipKddGIdBUnO
Malware Config
Extracted
quasar
1.3.0.0
Office04
companinuevoano1.con-ip.com:4782
QSR_MUTEX_l1M93VuqIyiH8hEQ4I
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encryption_key
rFxyS0ilcLEI1ldtBJAu
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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/1940-1-0x0000000000F00000-0x0000000000F5E000-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 33 ip-api.com -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
498844e96c76ce422fdb328f5deadd5e0785582cf291c1cf9d32ed15f45fa964.exedescription pid process Token: SeDebugPrivilege 1940 498844e96c76ce422fdb328f5deadd5e0785582cf291c1cf9d32ed15f45fa964.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\498844e96c76ce422fdb328f5deadd5e0785582cf291c1cf9d32ed15f45fa964.exe"C:\Users\Admin\AppData\Local\Temp\498844e96c76ce422fdb328f5deadd5e0785582cf291c1cf9d32ed15f45fa964.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1940
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4456 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:81⤵PID:4104