Analysis
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max time kernel
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max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
03-12-2024 13:06
Static task
static1
Behavioral task
behavioral1
Sample
Nowezamwienie-0072291855.pdf243KB.com.exe
Resource
win7-20241023-en
General
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Target
Nowezamwienie-0072291855.pdf243KB.com.exe
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Size
3.7MB
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MD5
96493f8a0252e4e492de924d83db5a8a
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SHA1
09dad264469e86a858f0183ed6e5bfe2d53781f4
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SHA256
e14c8cd3613b5d94cd5ca407fd329b61954add690c779edbd41b362d035f7879
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SHA512
29d6192b4aae0af83fe15d015be5cf3e1b8832e154c6e847d71de1834c30421f435192490fc9f5b868c99e71f2bbdb92685582985ece2e7694d02799cd315b78
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SSDEEP
49152:wBeT66BYzsKDeAo4hJFXMOqlI9XGhvPEpCaZKfpObuLkEnmnK0QnFRhe5+ET8QVY:TTF7GbIlDvPEpz4ptnHhK87nhUnIJb
Malware Config
Extracted
quasar
1.4.1
JEKWU
Zyg.ydns.eu:5829
Opy.ydns.eu:5829
9c58b2ba-07eb-415a-b48b-21bbb68d32285e
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encryption_key
C5B555A83D127A9553D4FB1FCECB35CE8E91A447
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install_name
outlooks.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Outlooks
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subdirectory
WindowsUpdates
Signatures
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Quasar family
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Quasar payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/376-27-0x0000000000400000-0x0000000000724000-memory.dmp family_quasar -
Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepid Process 1092 powershell.exe 4800 powershell.exe 4572 powershell.exe 4000 powershell.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
Nowezamwienie-0072291855.pdf243KB.com.exeoutlooks.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation Nowezamwienie-0072291855.pdf243KB.com.exe Key value queried \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation outlooks.exe -
Executes dropped EXE 3 IoCs
Processes:
outlooks.exeoutlooks.exeoutlooks.exepid Process 1508 outlooks.exe 4936 outlooks.exe 5012 outlooks.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
Nowezamwienie-0072291855.pdf243KB.com.exeoutlooks.exedescription pid Process procid_target PID 1156 set thread context of 376 1156 Nowezamwienie-0072291855.pdf243KB.com.exe 102 PID 1508 set thread context of 4936 1508 outlooks.exe 115 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 12 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
schtasks.exeNowezamwienie-0072291855.pdf243KB.com.exeoutlooks.exepowershell.exeoutlooks.exepowershell.exepowershell.exepowershell.exeschtasks.exeschtasks.exeNowezamwienie-0072291855.pdf243KB.com.exeschtasks.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Nowezamwienie-0072291855.pdf243KB.com.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language outlooks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language outlooks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Nowezamwienie-0072291855.pdf243KB.com.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 4 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exeschtasks.exeschtasks.exepid Process 2516 schtasks.exe 2144 schtasks.exe 1468 schtasks.exe 3048 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 10 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exeoutlooks.exepid Process 1092 powershell.exe 4800 powershell.exe 1092 powershell.exe 4800 powershell.exe 4572 powershell.exe 4000 powershell.exe 1508 outlooks.exe 1508 outlooks.exe 4572 powershell.exe 4000 powershell.exe -
Suspicious use of AdjustPrivilegeToken 7 IoCs
Processes:
powershell.exepowershell.exeNowezamwienie-0072291855.pdf243KB.com.exepowershell.exepowershell.exeoutlooks.exeoutlooks.exedescription pid Process Token: SeDebugPrivilege 1092 powershell.exe Token: SeDebugPrivilege 4800 powershell.exe Token: SeDebugPrivilege 376 Nowezamwienie-0072291855.pdf243KB.com.exe Token: SeDebugPrivilege 4572 powershell.exe Token: SeDebugPrivilege 4000 powershell.exe Token: SeDebugPrivilege 1508 outlooks.exe Token: SeDebugPrivilege 4936 outlooks.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
outlooks.exepid Process 4936 outlooks.exe -
Suspicious use of WriteProcessMemory 46 IoCs
Processes:
Nowezamwienie-0072291855.pdf243KB.com.exeNowezamwienie-0072291855.pdf243KB.com.exeoutlooks.exeoutlooks.exedescription pid Process procid_target PID 1156 wrote to memory of 1092 1156 Nowezamwienie-0072291855.pdf243KB.com.exe 96 PID 1156 wrote to memory of 1092 1156 Nowezamwienie-0072291855.pdf243KB.com.exe 96 PID 1156 wrote to memory of 1092 1156 Nowezamwienie-0072291855.pdf243KB.com.exe 96 PID 1156 wrote to memory of 4800 1156 Nowezamwienie-0072291855.pdf243KB.com.exe 98 PID 1156 wrote to memory of 4800 1156 Nowezamwienie-0072291855.pdf243KB.com.exe 98 PID 1156 wrote to memory of 4800 1156 Nowezamwienie-0072291855.pdf243KB.com.exe 98 PID 1156 wrote to memory of 2516 1156 Nowezamwienie-0072291855.pdf243KB.com.exe 100 PID 1156 wrote to memory of 2516 1156 Nowezamwienie-0072291855.pdf243KB.com.exe 100 PID 1156 wrote to memory of 2516 1156 Nowezamwienie-0072291855.pdf243KB.com.exe 100 PID 1156 wrote to memory of 376 1156 Nowezamwienie-0072291855.pdf243KB.com.exe 102 PID 1156 wrote to memory of 376 1156 Nowezamwienie-0072291855.pdf243KB.com.exe 102 PID 1156 wrote to memory of 376 1156 Nowezamwienie-0072291855.pdf243KB.com.exe 102 PID 1156 wrote to memory of 376 1156 Nowezamwienie-0072291855.pdf243KB.com.exe 102 PID 1156 wrote to memory of 376 1156 Nowezamwienie-0072291855.pdf243KB.com.exe 102 PID 1156 wrote to memory of 376 1156 Nowezamwienie-0072291855.pdf243KB.com.exe 102 PID 1156 wrote to memory of 376 1156 Nowezamwienie-0072291855.pdf243KB.com.exe 102 PID 1156 wrote to memory of 376 1156 Nowezamwienie-0072291855.pdf243KB.com.exe 102 PID 376 wrote to memory of 2144 376 Nowezamwienie-0072291855.pdf243KB.com.exe 103 PID 376 wrote to memory of 2144 376 Nowezamwienie-0072291855.pdf243KB.com.exe 103 PID 376 wrote to memory of 2144 376 Nowezamwienie-0072291855.pdf243KB.com.exe 103 PID 376 wrote to memory of 1508 376 Nowezamwienie-0072291855.pdf243KB.com.exe 105 PID 376 wrote to memory of 1508 376 Nowezamwienie-0072291855.pdf243KB.com.exe 105 PID 376 wrote to memory of 1508 376 Nowezamwienie-0072291855.pdf243KB.com.exe 105 PID 1508 wrote to memory of 4572 1508 outlooks.exe 108 PID 1508 wrote to memory of 4572 1508 outlooks.exe 108 PID 1508 wrote to memory of 4572 1508 outlooks.exe 108 PID 1508 wrote to memory of 4000 1508 outlooks.exe 110 PID 1508 wrote to memory of 4000 1508 outlooks.exe 110 PID 1508 wrote to memory of 4000 1508 outlooks.exe 110 PID 1508 wrote to memory of 1468 1508 outlooks.exe 112 PID 1508 wrote to memory of 1468 1508 outlooks.exe 112 PID 1508 wrote to memory of 1468 1508 outlooks.exe 112 PID 1508 wrote to memory of 5012 1508 outlooks.exe 114 PID 1508 wrote to memory of 5012 1508 outlooks.exe 114 PID 1508 wrote to memory of 5012 1508 outlooks.exe 114 PID 1508 wrote to memory of 4936 1508 outlooks.exe 115 PID 1508 wrote to memory of 4936 1508 outlooks.exe 115 PID 1508 wrote to memory of 4936 1508 outlooks.exe 115 PID 1508 wrote to memory of 4936 1508 outlooks.exe 115 PID 1508 wrote to memory of 4936 1508 outlooks.exe 115 PID 1508 wrote to memory of 4936 1508 outlooks.exe 115 PID 1508 wrote to memory of 4936 1508 outlooks.exe 115 PID 1508 wrote to memory of 4936 1508 outlooks.exe 115 PID 4936 wrote to memory of 3048 4936 outlooks.exe 116 PID 4936 wrote to memory of 3048 4936 outlooks.exe 116 PID 4936 wrote to memory of 3048 4936 outlooks.exe 116
Processes
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C:\Users\Admin\AppData\Local\Temp\Nowezamwienie-0072291855.pdf243KB.com.exe"C:\Users\Admin\AppData\Local\Temp\Nowezamwienie-0072291855.pdf243KB.com.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1156 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Nowezamwienie-0072291855.pdf243KB.com.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1092
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\EPhabVgXw.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4800
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EPhabVgXw" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBAB5.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2516
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C:\Users\Admin\AppData\Local\Temp\Nowezamwienie-0072291855.pdf243KB.com.exe"C:\Users\Admin\AppData\Local\Temp\Nowezamwienie-0072291855.pdf243KB.com.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:376 -
C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "Outlooks" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\WindowsUpdates\outlooks.exe" /rl HIGHEST /f3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2144
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C:\Users\Admin\AppData\Roaming\WindowsUpdates\outlooks.exe"C:\Users\Admin\AppData\Roaming\WindowsUpdates\outlooks.exe"3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1508 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\WindowsUpdates\outlooks.exe"4⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4572
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\EPhabVgXw.exe"4⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4000
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EPhabVgXw" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5E7.tmp"4⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1468
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C:\Users\Admin\AppData\Roaming\WindowsUpdates\outlooks.exe"C:\Users\Admin\AppData\Roaming\WindowsUpdates\outlooks.exe"4⤵
- Executes dropped EXE
PID:5012
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C:\Users\Admin\AppData\Roaming\WindowsUpdates\outlooks.exe"C:\Users\Admin\AppData\Roaming\WindowsUpdates\outlooks.exe"4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4936 -
C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "Outlooks" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\WindowsUpdates\outlooks.exe" /rl HIGHEST /f5⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:3048
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Nowezamwienie-0072291855.pdf243KB.com.exe.log
Filesize1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
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Filesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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Filesize
18KB
MD5298282601fd25e34effef4fe49633d57
SHA1cd0aa469b91aaba104702545730a2d3ed39bbbe8
SHA25626106832b5604678c62809fdb7761800c0f96966338ff42d5b1372de5e2c2020
SHA51252d3f195bd82f3115e435bc8a5de8bb2e78e7590d649957f75c08a1e3d507ef6581d1f095446292a2e3336d3aa4c35ecaa035fdeb563f5b7e4a36e83519903f5
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Filesize
18KB
MD5467655bf0f3490e70a5c7ceece5c9c7f
SHA17440a53d23e9dec407621bdeb019cdf2810712f4
SHA256089d3debc6743b25a6f555dd9c8e2ebe3d5fe74fb370e12af5b27dd12cef8989
SHA512968cce03ae6b81488c0ef1dd4184ad9557d3367ecb5c8d316bcafefc1e2f7f17794678c401515e0f7e711cd292374b6d953a463b2b1a9aba8b00c59aa49afd13
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD5ec1af89190aedcadbcff2e0d8162b0c9
SHA1f4ef9711ee340b4b84ba9d0a2fa12121496a6e93
SHA2568c1497f0235fd32162ca5030e0c19b50c9016ed3f8fc4d0228aaafda5d37ad1a
SHA5122efd19fa7bb87f0642e5cb9d042fc860d7a8f42214f82891cbd365c27d2c96b33c7efd61fafcafe2d77bee09df6616fa5cd07aa5d10fcdeedf08fc1ed01d0b56
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Filesize
3.7MB
MD596493f8a0252e4e492de924d83db5a8a
SHA109dad264469e86a858f0183ed6e5bfe2d53781f4
SHA256e14c8cd3613b5d94cd5ca407fd329b61954add690c779edbd41b362d035f7879
SHA51229d6192b4aae0af83fe15d015be5cf3e1b8832e154c6e847d71de1834c30421f435192490fc9f5b868c99e71f2bbdb92685582985ece2e7694d02799cd315b78