Analysis
- max time kernel
141s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system - submitted
18/06/2024, 09:29
Behavioral task
behavioral1
Sample
37d67a422a2c3eac276ec75c6b4600aba1028e244b01a3c9b1e22fbace9dfcad.exe
Resource
win7-20240508-en
windows7-x64
15 signatures
150 seconds
General
- Target 37d67a422a2c3eac276ec75c6b4600aba1028e244b01a3c9b1e22fbace9dfcad.exe
- Size 539KB
- Sample240618-lf6ffsxdrf
- SHA256 37d67a422a2c3eac276ec75c6b4600aba1028e244b01a3c9b1e22fbace9dfcad
- MD5 bd50ba38259a5c7a2a376ea20c16d895
- SHA1 a23cc9f184aa87b8ca1e5fe1589b192d303fe0dd
- SHA512 30ebadd2be0c2095e7221c18a58b0799830e321a94bc5e102f48842c331c0b5743565759a5c2e1c635a7fb5efb03e10b2eaf3da4b9a41dd0bfce16a454d16c66
- SSDEEP 12288:whymnwJFPNdgBAEHApqePJN1AmLM7uVq9sSYN:wUmwrl2Ao7sJNlM7ymsSYN
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
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resource yara_rule behavioral2/memory/4928-1-0x0000000010000000-0x000000001019F000-memory.dmp purplefox_rootkit behavioral2/memory/4928-16-0x0000000000400000-0x0000000000547000-memory.dmp purplefox_rootkit behavioral2/memory/724-35-0x0000000000400000-0x0000000000547000-memory.dmp purplefox_rootkit - Gh0st RAT payload 4 IoCs
resource yara_rule behavioral2/memory/4928-1-0x0000000010000000-0x000000001019F000-memory.dmp family_gh0strat behavioral2/memory/724-17-0x0000000000400000-0x0000000000547000-memory.dmp family_gh0strat behavioral2/memory/4928-16-0x0000000000400000-0x0000000000547000-memory.dmp family_gh0strat behavioral2/memory/724-35-0x0000000000400000-0x0000000000547000-memory.dmp family_gh0strat - Drops file in Drivers directory 1 IoCs
description ioc Process File created C:\Windows\system32\drivers\QAssist.sys Phija.exe - Sets service image path in registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys" Phija.exe - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation 37d67a422a2c3eac276ec75c6b4600aba1028e244b01a3c9b1e22fbace9dfcad.exe - Executes dropped EXE 1 IoCs
pid Process 724 Phija.exe -
resource yara_rule behavioral2/memory/4928-0-0x0000000000400000-0x0000000000547000-memory.dmp upx behavioral2/files/0x0004000000022f62-11.dat upx behavioral2/memory/724-17-0x0000000000400000-0x0000000000547000-memory.dmp upx behavioral2/memory/4928-16-0x0000000000400000-0x0000000000547000-memory.dmp upx behavioral2/memory/724-35-0x0000000000400000-0x0000000000547000-memory.dmp upx - Enumerates connected drives 3 TTPs 22 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\K: Phija.exe File opened (read-only) \??\S: Phija.exe File opened (read-only) \??\T: Phija.exe File opened (read-only) \??\U: Phija.exe File opened (read-only) \??\V: Phija.exe File opened (read-only) \??\W: Phija.exe File opened (read-only) \??\X: Phija.exe File opened (read-only) \??\E: Phija.exe File opened (read-only) \??\I: Phija.exe File opened (read-only) \??\L: Phija.exe File opened (read-only) \??\N: Phija.exe File opened (read-only) \??\O: Phija.exe File opened (read-only) \??\Q: Phija.exe File opened (read-only) \??\R: Phija.exe File opened (read-only) \??\H: Phija.exe File opened (read-only) \??\J: Phija.exe File opened (read-only) \??\Y: Phija.exe File opened (read-only) \??\Z: Phija.exe File opened (read-only) \??\B: Phija.exe File opened (read-only) \??\G: Phija.exe File opened (read-only) \??\M: Phija.exe File opened (read-only) \??\P: Phija.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 Phija.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz Phija.exe - Runs ping.exe 1 TTPs 1 IoCs
pid Process 4192 PING.EXE - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe 724 Phija.exe - Suspicious behavior: LoadsDriver 1 IoCs
pid Process 724 Phija.exe - Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 4928 37d67a422a2c3eac276ec75c6b4600aba1028e244b01a3c9b1e22fbace9dfcad.exe Token: SeLoadDriverPrivilege 724 Phija.exe Token: 33 724 Phija.exe Token: SeIncBasePriorityPrivilege 724 Phija.exe Token: 33 724 Phija.exe Token: SeIncBasePriorityPrivilege 724 Phija.exe - Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 4928 wrote to memory of 724 4928 37d67a422a2c3eac276ec75c6b4600aba1028e244b01a3c9b1e22fbace9dfcad.exe 81 PID 4928 wrote to memory of 724 4928 37d67a422a2c3eac276ec75c6b4600aba1028e244b01a3c9b1e22fbace9dfcad.exe 81 PID 4928 wrote to memory of 724 4928 37d67a422a2c3eac276ec75c6b4600aba1028e244b01a3c9b1e22fbace9dfcad.exe 81 PID 4928 wrote to memory of 2280 4928 37d67a422a2c3eac276ec75c6b4600aba1028e244b01a3c9b1e22fbace9dfcad.exe 82 PID 4928 wrote to memory of 2280 4928 37d67a422a2c3eac276ec75c6b4600aba1028e244b01a3c9b1e22fbace9dfcad.exe 82 PID 4928 wrote to memory of 2280 4928 37d67a422a2c3eac276ec75c6b4600aba1028e244b01a3c9b1e22fbace9dfcad.exe 82 PID 2280 wrote to memory of 4192 2280 cmd.exe 85 PID 2280 wrote to memory of 4192 2280 cmd.exe 85 PID 2280 wrote to memory of 4192 2280 cmd.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\37d67a422a2c3eac276ec75c6b4600aba1028e244b01a3c9b1e22fbace9dfcad.exe"C:\Users\Admin\AppData\Local\Temp\37d67a422a2c3eac276ec75c6b4600aba1028e244b01a3c9b1e22fbace9dfcad.exe"1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4928 -
C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe"C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Phija.exe"2⤵
- Drops file in Drivers directory
- Sets service image path in registry
- Executes dropped EXE
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
PID:724
-
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Users\Admin\AppData\Local\Temp\37D67A~1.EXE > nul2⤵
- Suspicious use of WriteProcessMemory
PID:2280 -
C:\Windows\SysWOW64\PING.EXEping -n 2 127.0.0.13⤵
- Runs ping.exe
PID:4192
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\Phija.exe
- Size 539KB
- SHA256 37d67a422a2c3eac276ec75c6b4600aba1028e244b01a3c9b1e22fbace9dfcad
- MD5 bd50ba38259a5c7a2a376ea20c16d895
- SHA1 a23cc9f184aa87b8ca1e5fe1589b192d303fe0dd
- SHA512 30ebadd2be0c2095e7221c18a58b0799830e321a94bc5e102f48842c331c0b5743565759a5c2e1c635a7fb5efb03e10b2eaf3da4b9a41dd0bfce16a454d16c66
- SSDEEP 12288:whymnwJFPNdgBAEHApqePJN1AmLM7uVq9sSYN:wUmwrl2Ao7sJNlM7ymsSYN
- MD5 SHA1 SHA512 SSDEEP