Analysis
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max time kernel
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max time network
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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 17:04
Static task
static1
Behavioral task
behavioral1
Sample
Bestellung-021224-901003637.exe
Resource
win7-20241010-en
General
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Target
Bestellung-021224-901003637.exe
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Size
3.7MB
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MD5
15f259b30ec72a5217144834f7f5b564
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SHA1
baed3fe7d059a497f856e263431ccd3872ef1ea1
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SHA256
01de053d9560d419f0b6c35dbddb1175eb1fd7a21450989332024b812d39c4c2
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SHA512
5e1148a9cf8008b7c38d067ec34e5c3bc7255341d114476532f8111ea2c3e654eb70b0a439aaaea22543576f09b9cec269f9b3414a6a24fc54b89c7c677c5f47
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SSDEEP
98304:ZrAsTIZbqqBQjwske/pCT66UNYekeWY0CE9:ZcCSL0ke/pO5ekeWtCE9
Malware Config
Extracted
quasar
1.4.1
DAVID
hoffmann3.ydns.eu:5829
532aca2b-96ff-44aa-9213-031e975919ac
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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/3036-47-0x0000000000400000-0x0000000000724000-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 4844 powershell.exe 436 powershell.exe 4496 powershell.exe 3244 powershell.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
Bestellung-021224-901003637.exeoutlooks.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation Bestellung-021224-901003637.exe Key value queried \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation outlooks.exe -
Executes dropped EXE 2 IoCs
Processes:
outlooks.exeoutlooks.exepid Process 1992 outlooks.exe 3444 outlooks.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
Bestellung-021224-901003637.exeoutlooks.exedescription pid Process procid_target PID 1816 set thread context of 3036 1816 Bestellung-021224-901003637.exe 102 PID 1992 set thread context of 3444 1992 outlooks.exe 114 -
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:
Bestellung-021224-901003637.exeoutlooks.exeschtasks.exeBestellung-021224-901003637.exepowershell.exeschtasks.exeoutlooks.exepowershell.exepowershell.exeschtasks.exepowershell.exeschtasks.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Bestellung-021224-901003637.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language outlooks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Bestellung-021224-901003637.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 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 schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.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 4004 schtasks.exe 1572 schtasks.exe 4160 schtasks.exe 3936 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 10 IoCs
Processes:
powershell.exepowershell.exeBestellung-021224-901003637.exepowershell.exepowershell.exepid Process 4844 powershell.exe 3244 powershell.exe 4844 powershell.exe 3244 powershell.exe 1816 Bestellung-021224-901003637.exe 1816 Bestellung-021224-901003637.exe 436 powershell.exe 4496 powershell.exe 4496 powershell.exe 436 powershell.exe -
Suspicious use of AdjustPrivilegeToken 7 IoCs
Processes:
powershell.exepowershell.exeBestellung-021224-901003637.exeBestellung-021224-901003637.exepowershell.exepowershell.exeoutlooks.exedescription pid Process Token: SeDebugPrivilege 3244 powershell.exe Token: SeDebugPrivilege 4844 powershell.exe Token: SeDebugPrivilege 1816 Bestellung-021224-901003637.exe Token: SeDebugPrivilege 3036 Bestellung-021224-901003637.exe Token: SeDebugPrivilege 436 powershell.exe Token: SeDebugPrivilege 4496 powershell.exe Token: SeDebugPrivilege 3444 outlooks.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
outlooks.exepid Process 3444 outlooks.exe -
Suspicious use of WriteProcessMemory 46 IoCs
Processes:
Bestellung-021224-901003637.exeBestellung-021224-901003637.exeoutlooks.exeoutlooks.exedescription pid Process procid_target PID 1816 wrote to memory of 3244 1816 Bestellung-021224-901003637.exe 92 PID 1816 wrote to memory of 3244 1816 Bestellung-021224-901003637.exe 92 PID 1816 wrote to memory of 3244 1816 Bestellung-021224-901003637.exe 92 PID 1816 wrote to memory of 4844 1816 Bestellung-021224-901003637.exe 94 PID 1816 wrote to memory of 4844 1816 Bestellung-021224-901003637.exe 94 PID 1816 wrote to memory of 4844 1816 Bestellung-021224-901003637.exe 94 PID 1816 wrote to memory of 4004 1816 Bestellung-021224-901003637.exe 96 PID 1816 wrote to memory of 4004 1816 Bestellung-021224-901003637.exe 96 PID 1816 wrote to memory of 4004 1816 Bestellung-021224-901003637.exe 96 PID 1816 wrote to memory of 2936 1816 Bestellung-021224-901003637.exe 101 PID 1816 wrote to memory of 2936 1816 Bestellung-021224-901003637.exe 101 PID 1816 wrote to memory of 2936 1816 Bestellung-021224-901003637.exe 101 PID 1816 wrote to memory of 3036 1816 Bestellung-021224-901003637.exe 102 PID 1816 wrote to memory of 3036 1816 Bestellung-021224-901003637.exe 102 PID 1816 wrote to memory of 3036 1816 Bestellung-021224-901003637.exe 102 PID 1816 wrote to memory of 3036 1816 Bestellung-021224-901003637.exe 102 PID 1816 wrote to memory of 3036 1816 Bestellung-021224-901003637.exe 102 PID 1816 wrote to memory of 3036 1816 Bestellung-021224-901003637.exe 102 PID 1816 wrote to memory of 3036 1816 Bestellung-021224-901003637.exe 102 PID 1816 wrote to memory of 3036 1816 Bestellung-021224-901003637.exe 102 PID 3036 wrote to memory of 1572 3036 Bestellung-021224-901003637.exe 103 PID 3036 wrote to memory of 1572 3036 Bestellung-021224-901003637.exe 103 PID 3036 wrote to memory of 1572 3036 Bestellung-021224-901003637.exe 103 PID 3036 wrote to memory of 1992 3036 Bestellung-021224-901003637.exe 105 PID 3036 wrote to memory of 1992 3036 Bestellung-021224-901003637.exe 105 PID 3036 wrote to memory of 1992 3036 Bestellung-021224-901003637.exe 105 PID 1992 wrote to memory of 436 1992 outlooks.exe 108 PID 1992 wrote to memory of 436 1992 outlooks.exe 108 PID 1992 wrote to memory of 436 1992 outlooks.exe 108 PID 1992 wrote to memory of 4496 1992 outlooks.exe 110 PID 1992 wrote to memory of 4496 1992 outlooks.exe 110 PID 1992 wrote to memory of 4496 1992 outlooks.exe 110 PID 1992 wrote to memory of 4160 1992 outlooks.exe 112 PID 1992 wrote to memory of 4160 1992 outlooks.exe 112 PID 1992 wrote to memory of 4160 1992 outlooks.exe 112 PID 1992 wrote to memory of 3444 1992 outlooks.exe 114 PID 1992 wrote to memory of 3444 1992 outlooks.exe 114 PID 1992 wrote to memory of 3444 1992 outlooks.exe 114 PID 1992 wrote to memory of 3444 1992 outlooks.exe 114 PID 1992 wrote to memory of 3444 1992 outlooks.exe 114 PID 1992 wrote to memory of 3444 1992 outlooks.exe 114 PID 1992 wrote to memory of 3444 1992 outlooks.exe 114 PID 1992 wrote to memory of 3444 1992 outlooks.exe 114 PID 3444 wrote to memory of 3936 3444 outlooks.exe 115 PID 3444 wrote to memory of 3936 3444 outlooks.exe 115 PID 3444 wrote to memory of 3936 3444 outlooks.exe 115
Processes
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C:\Users\Admin\AppData\Local\Temp\Bestellung-021224-901003637.exe"C:\Users\Admin\AppData\Local\Temp\Bestellung-021224-901003637.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1816 -
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\Bestellung-021224-901003637.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3244
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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\eNuXmIwkixzW.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4844
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\eNuXmIwkixzW" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE119.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:4004
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C:\Users\Admin\AppData\Local\Temp\Bestellung-021224-901003637.exe"C:\Users\Admin\AppData\Local\Temp\Bestellung-021224-901003637.exe"2⤵PID:2936
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C:\Users\Admin\AppData\Local\Temp\Bestellung-021224-901003637.exe"C:\Users\Admin\AppData\Local\Temp\Bestellung-021224-901003637.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3036 -
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:1572
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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 use of WriteProcessMemory
PID:1992 -
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:436
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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\eNuXmIwkixzW.exe"4⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4496
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\eNuXmIwkixzW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2F58.tmp"4⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:4160
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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:3444 -
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:3936
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
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Filesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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Filesize
18KB
MD56e7a006342e65b1574d62a1dba15baa8
SHA1d752950dfa7c0e523a06bd0e2542ac29b55015c5
SHA2564b8422f4bbea83a1a3ce560336c84d595bd3deff8bc77b0688e0a3789c2593b4
SHA512b47ff39f0e24a3a5efc2fdc7d8e43465c3c06068bd491ca512b69c8d5b25159d16fcf46e1313b73d7291f90b16c87774062a2d0aed8ae3abfcb39e983faa8b20
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Filesize
18KB
MD59ff698ebf4064f020e9b907fda78dca0
SHA11f50f219a18aebe2ecbd66776797466b04bfd206
SHA256d4bf6e4b5f0c32a98c714b508fb10422333e9b095902646347a348dbb0d32022
SHA512cad614dcf6cc8c83d713f2035a8292849df42ae7322ba2b9d70388a10e8859cf9edac2a2304295168caa8571a1d28b7e49e53b38ddee71c22486f33adfd88f9a
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD50f5159a38dcc30104456db898394a260
SHA18d5c8e4ce09a05d863583ab6c321fda637f2a5a0
SHA256c9cd13ad908fcaa476f54a5211add6f8f13bf63533ee122b1348034c25503ca9
SHA512e089fd2183780853bc60e798b58b2cec3e3863218f887d3e0ebc29cc1d3667ded6ef545d393f422432931dde4319de33c50631d9e2b7deddc0625f7989516e4b
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Filesize
3.7MB
MD515f259b30ec72a5217144834f7f5b564
SHA1baed3fe7d059a497f856e263431ccd3872ef1ea1
SHA25601de053d9560d419f0b6c35dbddb1175eb1fd7a21450989332024b812d39c4c2
SHA5125e1148a9cf8008b7c38d067ec34e5c3bc7255341d114476532f8111ea2c3e654eb70b0a439aaaea22543576f09b9cec269f9b3414a6a24fc54b89c7c677c5f47