Analysis
- max time kernel
71s - max time network
98s - platform
windows7_x64 - resource
win7-20240704-en - resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system - submitted
02/08/2024, 18:12
Behavioral task
behavioral1
Sample
Nuke Loader.exe
Resource
win7-20240704-en
14 signatures
150 seconds
General
- Target Nuke Loader.exe
- Size 3.1MB
- Sample240802-wtke9avaln
- SHA256 c4b6a54ec0f46c8c0df7d9f5f010c10c66ec23378b4548727fbfa2b3080ebf56
- MD5 ed675e5b50992702716b65c5b15bd2ee
- SHA1 2463edfe3d1667933aa2676876f4ac766450ff90
- SHA512 7747767ebb54a2973bde62e41e823588b9bde30d3d6e7648827b224d085daaff10a65a6b71a97c58d4c53f37e1a111587fe5834ac8168779bcdb4e4e266ef44b
- SSDEEP 49152:3vnI22SsaNYfdPBldt698dBcjHdDRJ6tbR3LoGdkTHHB72eh2NT:3vI22SsaNYfdPBldt6+dBcjHdDRJ6/
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
quasar
Version
-
1.4.1
Botnet
-
Office04
C2
-
192.168.1.51:4782
Mutex
-
b83cbaf1-3ce5-43f8-a42a-f845d8ef5467
Attributes
-
encryption_key
7F14878C24A186BCD9E69BFA124C76DC41F0C9A7
-
install_name
Client.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Quasar Client Startup
-
subdirectory
SubDir
Signatures
- Quasar payload 3 IoCs
resource yara_rule behavioral1/memory/2564-1-0x0000000000E60000-0x0000000001184000-memory.dmp family_quasar behavioral1/files/0x0008000000016d8a-6.dat family_quasar behavioral1/memory/2724-10-0x0000000001350000-0x0000000001674000-memory.dmp family_quasar - Executes dropped EXE 1 IoCs
pid Process 2724 Client.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS chrome.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName chrome.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer chrome.exe - Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2704 schtasks.exe 2688 schtasks.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1736 chrome.exe 1736 chrome.exe - Suspicious use of AdjustPrivilegeToken 10 IoCs
description pid Process Token: SeDebugPrivilege 2564 Nuke Loader.exe Token: SeDebugPrivilege 2724 Client.exe Token: SeShutdownPrivilege 1736 chrome.exe Token: SeShutdownPrivilege 1736 chrome.exe Token: SeShutdownPrivilege 1736 chrome.exe Token: SeShutdownPrivilege 1736 chrome.exe Token: SeShutdownPrivilege 1736 chrome.exe Token: SeShutdownPrivilege 1736 chrome.exe Token: SeShutdownPrivilege 1736 chrome.exe Token: SeShutdownPrivilege 1736 chrome.exe - Suspicious use of FindShellTrayWindow 35 IoCs
pid Process 2724 Client.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe - Suspicious use of SendNotifyMessage 33 IoCs
pid Process 2724 Client.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe 1736 chrome.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2724 Client.exe - Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 2564 wrote to memory of 2704 2564 Nuke Loader.exe 30 PID 2564 wrote to memory of 2704 2564 Nuke Loader.exe 30 PID 2564 wrote to memory of 2704 2564 Nuke Loader.exe 30 PID 2564 wrote to memory of 2724 2564 Nuke Loader.exe 32 PID 2564 wrote to memory of 2724 2564 Nuke Loader.exe 32 PID 2564 wrote to memory of 2724 2564 Nuke Loader.exe 32 PID 2724 wrote to memory of 2688 2724 Client.exe 33 PID 2724 wrote to memory of 2688 2724 Client.exe 33 PID 2724 wrote to memory of 2688 2724 Client.exe 33 PID 1736 wrote to memory of 1968 1736 chrome.exe 40 PID 1736 wrote to memory of 1968 1736 chrome.exe 40 PID 1736 wrote to memory of 1968 1736 chrome.exe 40 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2268 1736 chrome.exe 42 PID 1736 wrote to memory of 2204 1736 chrome.exe 43 PID 1736 wrote to memory of 2204 1736 chrome.exe 43 PID 1736 wrote to memory of 2204 1736 chrome.exe 43 PID 1736 wrote to memory of 2200 1736 chrome.exe 44 PID 1736 wrote to memory of 2200 1736 chrome.exe 44 PID 1736 wrote to memory of 2200 1736 chrome.exe 44 PID 1736 wrote to memory of 2200 1736 chrome.exe 44 PID 1736 wrote to memory of 2200 1736 chrome.exe 44 PID 1736 wrote to memory of 2200 1736 chrome.exe 44 PID 1736 wrote to memory of 2200 1736 chrome.exe 44 PID 1736 wrote to memory of 2200 1736 chrome.exe 44 PID 1736 wrote to memory of 2200 1736 chrome.exe 44 PID 1736 wrote to memory of 2200 1736 chrome.exe 44 - Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Users\Admin\AppData\Local\Temp\Nuke Loader.exe"C:\Users\Admin\AppData\Local\Temp\Nuke Loader.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2564 -
C:\Windows\system32\schtasks.exe"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:2704
-
-
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2724 -
C:\Windows\system32\schtasks.exe"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f3⤵
- Scheduled Task/Job: Scheduled Task
PID:2688
-
-
-
C:\Windows\explorer.exe"C:\Windows\explorer.exe"1⤵PID:2644
-
C:\Windows\explorer.exe"C:\Windows\explorer.exe"1⤵PID:708
-
C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe"1⤵
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1736 -
C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=106.0.5249.119 --initial-client-data=0xc0,0xc4,0xc8,0x94,0xcc,0x7feee999758,0x7feee999768,0x7feee9997782⤵PID:1968
-
-
C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1148 --field-trial-handle=1332,i,1337797323151470819,13546893513996321108,131072 /prefetch:22⤵PID:2268
-
-
C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=1500 --field-trial-handle=1332,i,1337797323151470819,13546893513996321108,131072 /prefetch:82⤵PID:2204
-
-
C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1620 --field-trial-handle=1332,i,1337797323151470819,13546893513996321108,131072 /prefetch:82⤵PID:2200
-
-
C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2136 --field-trial-handle=1332,i,1337797323151470819,13546893513996321108,131072 /prefetch:12⤵PID:2256
-
-
C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=1612 --field-trial-handle=1332,i,1337797323151470819,13546893513996321108,131072 /prefetch:12⤵PID:2272
-
-
C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --use-gl=angle --use-angle=swiftshader-webgl --mojo-platform-channel-handle=1520 --field-trial-handle=1332,i,1337797323151470819,13546893513996321108,131072 /prefetch:22⤵PID:1028
-
-
C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --mojo-platform-channel-handle=1492 --field-trial-handle=1332,i,1337797323151470819,13546893513996321108,131072 /prefetch:12⤵PID:1604
-
-
C:\Program Files\Google\Chrome\Application\chrome.exe"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3652 --field-trial-handle=1332,i,1337797323151470819,13546893513996321108,131072 /prefetch:82⤵PID:2728
-
-
C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe"C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe"1⤵PID:2300
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\762f3abe-9fde-408c-b2aa-b3340ff4e47f.tmp
- Size 311KB
- SHA256 10cbf5862dcba9ca2801a6482ee10c91eaf978d8b641af79faf5dbdeee9106e1
- MD5 98e462c967b1e5295fd32e42fa6457ff
- SHA1 1e137af69bc1e6d0f17dfac14d33966900bf0949
- SHA512 324da6fbfd308a3e4969e510e5c6eca83759856e5147c419059396519842eece3d03e7729df61bcbc2185270ebdca7372197d873ff523793c38cdd644d0198a8
- SSDEEP 6144:pKwa+NdShM2GnsSK4sMG/VAe3L9dbDoL52M2clNC+2fo0aCnjjjrit:pBNdShM2GsX4sRNBpdE2MFlGt/7mt
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GCM Store\Encryption\000006.dbtmp
- Size 16B
- SHA256 4166bf17b2da789b0d0cc5c74203041d98005f5d4ef88c27e8281e00148cd611
- MD5 aefd77f47fb84fae5ea194496b44c67a
- SHA1 dcfbb6a5b8d05662c4858664f81693bb7f803b82
- SHA512 b733d502138821948267a8b27401d7c0751e590e1298fda1428e663ccd02f55d0d2446ff4bc265bdcdc61f952d13c01524a5341bc86afc3c2cde1d8589b2e1c3
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\data_1
- Size 264KB
- SHA256 b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec
- MD5 f50f89a0a91564d0b8a211f8921aa7de
- SHA1 112403a17dd69d5b9018b8cede023cb3b54eab7d
- SHA512 bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58
- SSDEEP 3:MsEllllkEthXllkl2zE:/M/xT02z
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
- Size 5KB
- SHA256 9971f3a01b2e42edf76578b6ac1e1293f516da6602ee6f1bcccafa745135c932
- MD5 2957382db9e3cad6d2864d79449ddc48
- SHA1 686021b91209e2a4fbd1ec8ff8255b1e1e309014
- SHA512 0f23abd2bf36a62076b321d1f665dd2356eeb78cb32f54cc76ed0caa5e16a8d22726fe7915258ed41ae1f2321560e3cbea00b5175080d20de6e554d7893a3e46
- SSDEEP 96:g6rK6Pa6uEKI8+yNQwd8iZRy7Di+6MsmdeFIOn6mxTzU6sjVhYtjEsXt0/cg2Vup:1mE8N78syy+F4iotjEsXtScPS
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Sync Data\LevelDB\000007.dbtmp
- Size 16B
- SHA256 8af72f43857550b01eab1019335772b367a17a9884a7a759fdf4fe6f272b90aa
- MD5 18e723571b00fb1694a3bad6c78e4054
- SHA1 afcc0ef32d46fe59e0483f9a3c891d3034d12f32
- SHA512 43bb0af7d3984012d2d67ca6b71f0201e5b948e6fe26a899641c4c6f066c59906d468ddf7f1df5ea5fa33c2bc5ea8219c0f2c82e0a5c365ad7581b898a8859e2
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
- Size 311KB
- SHA256 058020eb938a80639078ba07fd772836a839f9de29cf5db37134f65d0ef4327d
- MD5 80f2084cd75bbc8a08ae1e479f3d1a25
- SHA1 21b4ef3dc2e43f481e72a648b1cc35736d3dca32
- SHA512 aa4cecb2346fb344e5f6fabcc98e59df7b51219bcfdeac18a3eede47d55a092b8d5eadb80d225815ba52dd40ccd2953ea570b658103ee39c024bbefcc90ff2df
- SSDEEP 6144:5Kwa+NdShM2GnsSK4sMG/VAe3L9dbDoL52M2clNC+2fo0aCnjjjrit:5BNdShM2GsX4sRNBpdE2MFlGt/7mt
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
- Size 3.1MB
- SHA256 c4b6a54ec0f46c8c0df7d9f5f010c10c66ec23378b4548727fbfa2b3080ebf56
- MD5 ed675e5b50992702716b65c5b15bd2ee
- SHA1 2463edfe3d1667933aa2676876f4ac766450ff90
- SHA512 7747767ebb54a2973bde62e41e823588b9bde30d3d6e7648827b224d085daaff10a65a6b71a97c58d4c53f37e1a111587fe5834ac8168779bcdb4e4e266ef44b
- SSDEEP 49152:3vnI22SsaNYfdPBldt698dBcjHdDRJ6tbR3LoGdkTHHB72eh2NT:3vI22SsaNYfdPBldt6+dBcjHdDRJ6/
- MD5 SHA1 SHA512 SSDEEP