Analysis
- max time kernel
147s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20250313-en - resource tags
arch:x64arch:x86image:win10v2004-20250313-enlocale:en-usos:windows10-2004-x64system - submitted
14/03/2025, 00:00
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
tmpgrglbjxb.exe
Resource
win7-20240903-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
tmpgrglbjxb.exe
Resource
win10v2004-20250313-en
15 signatures
150 seconds
Behavioral task
behavioral3
Sample
Favosites.ps1
Resource
win7-20240903-en
4 signatures
150 seconds
Behavioral task
behavioral4
Sample
Favosites.ps1
Resource
win10v2004-20250217-en
12 signatures
150 seconds
General
- Target tmpgrglbjxb.exe
- Size 706KB
- Sample250314-aaak2swvcv
- SHA256 97a824c3107a8d65a3f935e427d07bdf8d593da8cb5e4ff22f542fc2dc04ff8e
- MD5 6380fc84ffde38cca99bdd60b9a0225c
- SHA1 df66802841ecbca714c4c16f82f4fd3a943080fe
- SHA512 a351a170a0511ecb95e2c3dab42eb650412df3abb3450fabd41857f8fe1bd34eeea92f37cf03045fb8deaa88ff0906030ed37bc019c49a78a234ec033356e909
- SSDEEP 12288:2i6Mz1neNWzZqi+sVXu8Q7ulmGJvZVBMTKBOPn98zC/2qvhHWUnHZW9dFQ:cSqrKXVQ7WmWBMTIan+hWBWU5WNQ
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
darkcloud
Credentials
-
Protocol
ftp
-
Host
@StrFtpServer
-
Port
21
-
Username
@StrFtpUser
-
Password
@StrFtpPass
Signatures
- Darkcloud family
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
pid Process 5508 powershell.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1279544337-3716153908-718418795-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\indra = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\flattish.exe" msiexec.exe - Blocklisted process makes network request 4 IoCs
flow pid Process 13 2000 msiexec.exe 15 2000 msiexec.exe 17 2000 msiexec.exe 21 2000 msiexec.exe - Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\msiexec.exe msiexec.exe - Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
pid Process 2000 msiexec.exe - Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 5508 powershell.exe 2000 msiexec.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 3 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 powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language msiexec.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language tmpgrglbjxb.exe - Suspicious behavior: EnumeratesProcesses 9 IoCs
pid Process 5508 powershell.exe 5508 powershell.exe 5508 powershell.exe 5508 powershell.exe 5508 powershell.exe 5508 powershell.exe 5508 powershell.exe 5508 powershell.exe 5508 powershell.exe - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 5508 powershell.exe - Suspicious use of AdjustPrivilegeToken 22 IoCs
description pid Process Token: SeDebugPrivilege 5508 powershell.exe Token: SeIncreaseQuotaPrivilege 5508 powershell.exe Token: SeSecurityPrivilege 5508 powershell.exe Token: SeTakeOwnershipPrivilege 5508 powershell.exe Token: SeLoadDriverPrivilege 5508 powershell.exe Token: SeSystemProfilePrivilege 5508 powershell.exe Token: SeSystemtimePrivilege 5508 powershell.exe Token: SeProfSingleProcessPrivilege 5508 powershell.exe Token: SeIncBasePriorityPrivilege 5508 powershell.exe Token: SeCreatePagefilePrivilege 5508 powershell.exe Token: SeBackupPrivilege 5508 powershell.exe Token: SeRestorePrivilege 5508 powershell.exe Token: SeShutdownPrivilege 5508 powershell.exe Token: SeDebugPrivilege 5508 powershell.exe Token: SeSystemEnvironmentPrivilege 5508 powershell.exe Token: SeRemoteShutdownPrivilege 5508 powershell.exe Token: SeUndockPrivilege 5508 powershell.exe Token: SeManageVolumePrivilege 5508 powershell.exe Token: 33 5508 powershell.exe Token: 34 5508 powershell.exe Token: 35 5508 powershell.exe Token: 36 5508 powershell.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2000 msiexec.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 4336 wrote to memory of 5508 4336 tmpgrglbjxb.exe 85 PID 4336 wrote to memory of 5508 4336 tmpgrglbjxb.exe 85 PID 4336 wrote to memory of 5508 4336 tmpgrglbjxb.exe 85 PID 5508 wrote to memory of 2000 5508 powershell.exe 89 PID 5508 wrote to memory of 2000 5508 powershell.exe 89 PID 5508 wrote to memory of 2000 5508 powershell.exe 89 PID 5508 wrote to memory of 2000 5508 powershell.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\tmpgrglbjxb.exe"C:\Users\Admin\AppData\Local\Temp\tmpgrglbjxb.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4336 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell.exe -windowstyle hidden "$Opsaetnings=GC -Raw 'C:\Users\Admin\AppData\Local\resider\actinidiaceae\Favosites.Sen';$Exophoric=$Opsaetnings.SubString(56950,3);.$Exophoric($Opsaetnings)"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5508 -
C:\Windows\SysWOW64\msiexec.exe"C:\Windows\SysWOW64\msiexec.exe"3⤵
- Adds Run key to start application
- Blocklisted process makes network request
- Drops file in System32 directory
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:2000
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ynwpp5y3.ugz.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\resider\actinidiaceae\Favosites.Sen
- Size 55KB
- SHA256 c4b48bddd5d0daf66c329f95d400f7adc4ad1b123ff2037df4eb8c572056773b
- MD5 f9348008a31060ed5b812ced7d9627af
- SHA1 e1ac5457e8d27e54a17c9b55a7b35cee1aab34d2
- SHA512 eefaf15eb512b7c671b11705546267a397610c4bead68b4474d1a9e72b00a6babff53195c00a6037630d6011397127f1ff2e4329545b1ad069d799004d220630
- SSDEEP 768:3c44XnPyBn83Y2TNx460yeBFZQgxSziD7VVji3skBbkPE0VY8Cj4CC8PxR2k:sDJPZiuEEgsgVV78FMI2k
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\resider\actinidiaceae\Mimikerens97.Out195
- Size 325KB
- SHA256 c1daf9b61d412ad41ad040faf7f505d828c6c5d63f24283248845c0981416515
- MD5 d30672b5285ca63a5981aa1a569cd05a
- SHA1 66c107a34983f9cb8375965a26d21dd2e90a79fc
- SHA512 994cc519175c1de7b057c0955270f69b4993252b65d2d621aac5d1b1755d5abd653b3ced35eea676853e3692bcacc71cb0c380634c30aedbac2cd4f2099cbbfe
- SSDEEP 6144:F+kSQzmxgh6pZzCvGI7Gm+nZ3EiuxEhKRVMP2qOE5GyXHqsBea9tc9Fi:F4amxgkjzCuftnFhzhVUnyXKsm/i
- MD5 SHA1 SHA512 SSDEEP