aurora | d7d25a827de912a5ed8e3d8eb4e6d26b20b48834b6cbf99c72162f9f74e62364

Analysis

max time kernel
72s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
26/01/2023, 08:32

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General

Target
setup_win64.exe
Size 2.8MB
Sample230126-kfahcaee8t
SHA256 d7d25a827de912a5ed8e3d8eb4e6d26b20b48834b6cbf99c72162f9f74e62364
MD5 dafe5a638249c8479349a21d8a285b80
SHA1 4f930b8ee8343d2c5c675e1b100e75f42a3867d1
SHA512 8f3893cae904d4e5c5faf1dc7373a0d68814dae6a3d5f28bc32bf382f07ce58ac5172a1ef1504131cb42527293042582de68e26f1ff8a602c4876bbc799d84bd
SSDEEP 49152:NhLw96g9fhkl8asMCW4YAAgSRJWDnO6dRqTr+Wn8D/hnN1/gisnopApkdkRcwqj4:Ij9fhkl8asMmcg1DnTdi18D9zI3nop3c
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

aurora evasion spyware stealer themida trojan

Malware Config

Extracted

Family

aurora

45.15.156.210:8081

Signatures

Aurora
Aurora is a crypto wallet stealer written in Golang.
stealer aurora

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	setup_win64.exe

Executes dropped EXE 1 IoCs

pid	Process
5092	Os6lOzvWJH.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	setup_win64.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	setup_win64.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Themida packer 8 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/memory/764-132-0x0000000000320000-0x0000000000C34000-memory.dmp	themida
behavioral2/memory/764-133-0x0000000000320000-0x0000000000C34000-memory.dmp	themida
behavioral2/memory/764-135-0x0000000000320000-0x0000000000C34000-memory.dmp	themida
behavioral2/memory/764-136-0x0000000000320000-0x0000000000C34000-memory.dmp	themida
behavioral2/memory/764-137-0x0000000000320000-0x0000000000C34000-memory.dmp	themida
behavioral2/memory/764-138-0x0000000000320000-0x0000000000C34000-memory.dmp	themida
behavioral2/memory/764-139-0x0000000000320000-0x0000000000C34000-memory.dmp	themida
behavioral2/memory/764-151-0x0000000000320000-0x0000000000C34000-memory.dmp	themida

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	setup_win64.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
764	setup_win64.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
764	setup_win64.exe
764	setup_win64.exe
3424	powershell.exe
3424	powershell.exe
5092	Os6lOzvWJH.exe
5092	Os6lOzvWJH.exe
5092	Os6lOzvWJH.exe
5092	Os6lOzvWJH.exe
5092	Os6lOzvWJH.exe
5092	Os6lOzvWJH.exe
5092	Os6lOzvWJH.exe
5092	Os6lOzvWJH.exe
5092	Os6lOzvWJH.exe
5092	Os6lOzvWJH.exe
5092	Os6lOzvWJH.exe
5092	Os6lOzvWJH.exe
5092	Os6lOzvWJH.exe
5092	Os6lOzvWJH.exe
5092	Os6lOzvWJH.exe
5092	Os6lOzvWJH.exe
5092	Os6lOzvWJH.exe
5092	Os6lOzvWJH.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4000	wmic.exe
Token: SeSecurityPrivilege	4000	wmic.exe
Token: SeTakeOwnershipPrivilege	4000	wmic.exe
Token: SeLoadDriverPrivilege	4000	wmic.exe
Token: SeSystemProfilePrivilege	4000	wmic.exe
Token: SeSystemtimePrivilege	4000	wmic.exe
Token: SeProfSingleProcessPrivilege	4000	wmic.exe
Token: SeIncBasePriorityPrivilege	4000	wmic.exe
Token: SeCreatePagefilePrivilege	4000	wmic.exe
Token: SeBackupPrivilege	4000	wmic.exe
Token: SeRestorePrivilege	4000	wmic.exe
Token: SeShutdownPrivilege	4000	wmic.exe
Token: SeDebugPrivilege	4000	wmic.exe
Token: SeSystemEnvironmentPrivilege	4000	wmic.exe
Token: SeRemoteShutdownPrivilege	4000	wmic.exe
Token: SeUndockPrivilege	4000	wmic.exe
Token: SeManageVolumePrivilege	4000	wmic.exe
Token: 33	4000	wmic.exe
Token: 34	4000	wmic.exe
Token: 35	4000	wmic.exe
Token: 36	4000	wmic.exe
Token: SeIncreaseQuotaPrivilege	4000	wmic.exe
Token: SeSecurityPrivilege	4000	wmic.exe
Token: SeTakeOwnershipPrivilege	4000	wmic.exe
Token: SeLoadDriverPrivilege	4000	wmic.exe
Token: SeSystemProfilePrivilege	4000	wmic.exe
Token: SeSystemtimePrivilege	4000	wmic.exe
Token: SeProfSingleProcessPrivilege	4000	wmic.exe
Token: SeIncBasePriorityPrivilege	4000	wmic.exe
Token: SeCreatePagefilePrivilege	4000	wmic.exe
Token: SeBackupPrivilege	4000	wmic.exe
Token: SeRestorePrivilege	4000	wmic.exe
Token: SeShutdownPrivilege	4000	wmic.exe
Token: SeDebugPrivilege	4000	wmic.exe
Token: SeSystemEnvironmentPrivilege	4000	wmic.exe
Token: SeRemoteShutdownPrivilege	4000	wmic.exe
Token: SeUndockPrivilege	4000	wmic.exe
Token: SeManageVolumePrivilege	4000	wmic.exe
Token: 33	4000	wmic.exe
Token: 34	4000	wmic.exe
Token: 35	4000	wmic.exe
Token: 36	4000	wmic.exe
Token: SeIncreaseQuotaPrivilege	4396	WMIC.exe
Token: SeSecurityPrivilege	4396	WMIC.exe
Token: SeTakeOwnershipPrivilege	4396	WMIC.exe
Token: SeLoadDriverPrivilege	4396	WMIC.exe
Token: SeSystemProfilePrivilege	4396	WMIC.exe
Token: SeSystemtimePrivilege	4396	WMIC.exe
Token: SeProfSingleProcessPrivilege	4396	WMIC.exe
Token: SeIncBasePriorityPrivilege	4396	WMIC.exe
Token: SeCreatePagefilePrivilege	4396	WMIC.exe
Token: SeBackupPrivilege	4396	WMIC.exe
Token: SeRestorePrivilege	4396	WMIC.exe
Token: SeShutdownPrivilege	4396	WMIC.exe
Token: SeDebugPrivilege	4396	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4396	WMIC.exe
Token: SeRemoteShutdownPrivilege	4396	WMIC.exe
Token: SeUndockPrivilege	4396	WMIC.exe
Token: SeManageVolumePrivilege	4396	WMIC.exe
Token: 33	4396	WMIC.exe
Token: 34	4396	WMIC.exe
Token: 35	4396	WMIC.exe
Token: 36	4396	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4396	WMIC.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 764 wrote to memory of 4000	764	setup_win64.exe	80
PID 764 wrote to memory of 4000	764	setup_win64.exe	80
PID 764 wrote to memory of 4000	764	setup_win64.exe	80
PID 764 wrote to memory of 408	764	setup_win64.exe	82
PID 764 wrote to memory of 408	764	setup_win64.exe	82
PID 764 wrote to memory of 408	764	setup_win64.exe	82
PID 408 wrote to memory of 4396	408	cmd.exe	84
PID 408 wrote to memory of 4396	408	cmd.exe	84
PID 408 wrote to memory of 4396	408	cmd.exe	84
PID 764 wrote to memory of 4304	764	setup_win64.exe	85
PID 764 wrote to memory of 4304	764	setup_win64.exe	85
PID 764 wrote to memory of 4304	764	setup_win64.exe	85
PID 4304 wrote to memory of 5028	4304	cmd.exe	87
PID 4304 wrote to memory of 5028	4304	cmd.exe	87
PID 4304 wrote to memory of 5028	4304	cmd.exe	87
PID 764 wrote to memory of 3424	764	setup_win64.exe	88
PID 764 wrote to memory of 3424	764	setup_win64.exe	88
PID 764 wrote to memory of 3424	764	setup_win64.exe	88
PID 3424 wrote to memory of 5092	3424	powershell.exe	93
PID 3424 wrote to memory of 5092	3424	powershell.exe	93
PID 3424 wrote to memory of 5092	3424	powershell.exe	93

C:\Users\Admin\AppData\Local\Temp\setup_win64.exe
"C:\Users\Admin\AppData\Local\Temp\setup_win64.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:764
- C:\Windows\SysWOW64\Wbem\wmic.exe
  wmic os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4000
- C:\Windows\SysWOW64\cmd.exe
  cmd /C "wmic path win32_VideoController get name"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:408
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic path win32_VideoController get name
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:4396
- C:\Windows\SysWOW64\cmd.exe
  cmd /C "wmic cpu get name"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4304
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic cpu get name
    3⤵
    PID:5028
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell "" "start-process C:\Users\Admin\AppData\Local\Temp\Os6lOzvWJH.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3424
- - C:\Users\Admin\AppData\Local\Temp\Os6lOzvWJH.exe
    "C:\Users\Admin\AppData\Local\Temp\Os6lOzvWJH.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    PID:5092

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

Os6lOzvWJH.exe

Path C:\Users\Admin\AppData\Local\Temp\Os6lOzvWJH.exe
Size 4.1MB
SHA256 0ea7ac01f7c8cb0ad3574688fd83265cceb7c3c16f89f29799b8be1b3a314a6a
MD5 fd3921d7f42c4a42115ce88d1c9fe031
SHA1 30d5b2cd633667a340047e1ff1ce44628555eba0
SHA512 8216ba2c9da3e6021f8f90c824a9da14632069477e508117948d841fd7dcc7fe28e1fb3d9cae854afe32db3ed46c6ba9cc49b3840ec875f66f3fa252ae11fb70
SSDEEP 98304:tqXluR38F6hFi21rrkhLmQcEO8IxwyG+5JMO1pT8d:tqXwRs4h4krkh6l8KzhZi
MD5 SHA1 SHA512 SSDEEP

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Os6lOzvWJH.exe

Path C:\Users\Admin\AppData\Local\Temp\Os6lOzvWJH.exe
Size 4.1MB
SHA256 0ea7ac01f7c8cb0ad3574688fd83265cceb7c3c16f89f29799b8be1b3a314a6a
MD5 fd3921d7f42c4a42115ce88d1c9fe031
SHA1 30d5b2cd633667a340047e1ff1ce44628555eba0
SHA512 8216ba2c9da3e6021f8f90c824a9da14632069477e508117948d841fd7dcc7fe28e1fb3d9cae854afe32db3ed46c6ba9cc49b3840ec875f66f3fa252ae11fb70
SSDEEP 98304:tqXluR38F6hFi21rrkhLmQcEO8IxwyG+5JMO1pT8d:tqXwRs4h4krkh6l8KzhZi
MD5 SHA1 SHA512 SSDEEP

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memory/764-153-0x0000000077080000-0x0000000077223000-memory.dmp

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memory/764-151-0x0000000000320000-0x0000000000C34000-memory.dmp

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memory/764-137-0x0000000000320000-0x0000000000C34000-memory.dmp

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memory/764-138-0x0000000000320000-0x0000000000C34000-memory.dmp

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memory/764-139-0x0000000000320000-0x0000000000C34000-memory.dmp

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memory/764-133-0x0000000000320000-0x0000000000C34000-memory.dmp

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memory/764-135-0x0000000000320000-0x0000000000C34000-memory.dmp

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memory/764-134-0x0000000077080000-0x0000000077223000-memory.dmp

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memory/764-136-0x0000000000320000-0x0000000000C34000-memory.dmp

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memory/764-132-0x0000000000320000-0x0000000000C34000-memory.dmp

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memory/3424-154-0x00000000074A0000-0x0000000007536000-memory.dmp

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memory/3424-157-0x0000000007AF0000-0x0000000008094000-memory.dmp

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memory/3424-147-0x0000000005710000-0x0000000005D38000-memory.dmp

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memory/3424-148-0x0000000005410000-0x0000000005432000-memory.dmp

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memory/3424-149-0x00000000055C0000-0x0000000005626000-memory.dmp

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memory/3424-150-0x0000000005EB0000-0x0000000005F16000-memory.dmp

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memory/3424-152-0x00000000064F0000-0x000000000650E000-memory.dmp

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memory/3424-146-0x00000000015A0000-0x00000000015D6000-memory.dmp

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memory/3424-155-0x00000000069E0000-0x00000000069FA000-memory.dmp

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memory/3424-156-0x0000000006A30000-0x0000000006A52000-memory.dmp

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memory/5092-161-0x0000000000940000-0x0000000001023000-memory.dmp

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