Analysis
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max time kernel
146s -
max time network
152s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
06-11-2024 20:57
Behavioral task
behavioral1
Sample
Loltimo.exe
Resource
win7-20241010-en
General
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Target
Loltimo.exe
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Size
3.1MB
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MD5
afb2e5dad453db7cf42339f806f37532
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SHA1
90fa9e8b4ed9d086d67b9f86dc57151db1637ca9
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SHA256
a4b343420149aabd8ef8af687bcb7b252af476c4c8fdad177c3cf5d65ccf912e
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SHA512
72c3474f11a90bd904957030d019611c460dfa66524e0113b40b18a4ae0f3d81d56ae125fa2f247b266e71a11fcaad5884987036563e9464dc2e973877f79f3f
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SSDEEP
49152:Hv+lL26AaNeWgPhlmVqvMQ7XSKwkamEoXdl3THHB72eh2NT:HvuL26AaNeWgPhlmVqkQ7XSK9af8
Malware Config
Extracted
quasar
1.4.1
Office04
Ingrid78-20703.portmap.host:20703
e51e2b65-e963-4051-9736-67d57ed46798
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encryption_key
AEA258EF65BF1786F0F767C0BE2497ECC304C46F
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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 family
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Quasar payload 3 IoCs
resource yara_rule behavioral1/memory/2240-1-0x0000000000B50000-0x0000000000E74000-memory.dmp family_quasar behavioral1/files/0x0009000000016d3f-6.dat family_quasar behavioral1/memory/2388-9-0x0000000000860000-0x0000000000B84000-memory.dmp family_quasar -
Executes dropped EXE 1 IoCs
pid Process 2388 Client.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 2080 schtasks.exe 584 schtasks.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2240 Loltimo.exe Token: SeDebugPrivilege 2388 Client.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2388 Client.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2240 wrote to memory of 2080 2240 Loltimo.exe 30 PID 2240 wrote to memory of 2080 2240 Loltimo.exe 30 PID 2240 wrote to memory of 2080 2240 Loltimo.exe 30 PID 2240 wrote to memory of 2388 2240 Loltimo.exe 32 PID 2240 wrote to memory of 2388 2240 Loltimo.exe 32 PID 2240 wrote to memory of 2388 2240 Loltimo.exe 32 PID 2388 wrote to memory of 584 2388 Client.exe 34 PID 2388 wrote to memory of 584 2388 Client.exe 34 PID 2388 wrote to memory of 584 2388 Client.exe 34 -
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\Loltimo.exe"C:\Users\Admin\AppData\Local\Temp\Loltimo.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2240 -
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:2080
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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 SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2388 -
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:584
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3.1MB
MD5afb2e5dad453db7cf42339f806f37532
SHA190fa9e8b4ed9d086d67b9f86dc57151db1637ca9
SHA256a4b343420149aabd8ef8af687bcb7b252af476c4c8fdad177c3cf5d65ccf912e
SHA51272c3474f11a90bd904957030d019611c460dfa66524e0113b40b18a4ae0f3d81d56ae125fa2f247b266e71a11fcaad5884987036563e9464dc2e973877f79f3f