Windows 7 deprecation
Windows 7 will be removed from tria.ge on 2025-03-31
Analysis
-
max time kernel
142s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20230831-en -
resource tags
arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system -
submitted
02/09/2023, 14:51
Static task
static1
Behavioral task
behavioral1
Sample
Grammarly Promotional Launcher.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
Grammarly Promotional Launcher.exe
Resource
win10-20230831-en
Behavioral task
behavioral3
Sample
Grammarly Promotional Launcher.exe
Resource
win10v2004-20230831-en
General
-
Target
Grammarly Promotional Launcher.exe
-
Size
20.4MB
-
MD5
9ed667ef1d116c0cb1051b8001b6ea0f
-
SHA1
cbe4fdb8847ff9b5d0aa1e0a43bb3abd28f4a875
-
SHA256
deba2be10d757679996d33d70d37b968088ba37e1d0f86d71beb8be38c34262f
-
SHA512
4fc726f8f2ca7f024f5db1a660a3c9dff109014cc2f56097470b317950d05956c084f2e19fb9da3d14d589444c2bb0a7a370bce8b5dc049b5d3e774994bdd4e1
-
SSDEEP
393216:onRZwqeWLCKhc+0Uz+JD8rY5Pobe7n/k8MoeTtqLiVc4GYbJQp:CN1hxX+QrY5PAe7/kHtsii4bbJG
Malware Config
Extracted
stealc
9323114451583182971321730716
http://89.23.108.122
-
url_path
/e510c4e87f874d68.php
Signatures
-
Downloads MZ/PE file
-
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-1-5-21-528036852-1341495193-1175965888-1000\Control Panel\International\Geo\Nation Grammarly Promotional Launcher.exe -
Loads dropped DLL 2 IoCs
pid Process 4788 MSBuild.exe 4788 MSBuild.exe -
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
-
Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\F: Grammarly Promotional Launcher.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1884 set thread context of 4788 1884 Grammarly Promotional Launcher.exe 91 -
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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString MSBuild.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 MSBuild.exe -
Suspicious behavior: EnumeratesProcesses 16 IoCs
pid Process 1884 Grammarly Promotional Launcher.exe 1884 Grammarly Promotional Launcher.exe 1884 Grammarly Promotional Launcher.exe 1884 Grammarly Promotional Launcher.exe 1884 Grammarly Promotional Launcher.exe 1884 Grammarly Promotional Launcher.exe 1884 Grammarly Promotional Launcher.exe 1884 Grammarly Promotional Launcher.exe 1884 Grammarly Promotional Launcher.exe 1884 Grammarly Promotional Launcher.exe 1884 Grammarly Promotional Launcher.exe 1884 Grammarly Promotional Launcher.exe 2144 powershell.exe 2144 powershell.exe 4788 MSBuild.exe 4788 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2144 powershell.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 1884 wrote to memory of 2144 1884 Grammarly Promotional Launcher.exe 88 PID 1884 wrote to memory of 2144 1884 Grammarly Promotional Launcher.exe 88 PID 1884 wrote to memory of 2972 1884 Grammarly Promotional Launcher.exe 90 PID 1884 wrote to memory of 2972 1884 Grammarly Promotional Launcher.exe 90 PID 1884 wrote to memory of 2972 1884 Grammarly Promotional Launcher.exe 90 PID 1884 wrote to memory of 4788 1884 Grammarly Promotional Launcher.exe 91 PID 1884 wrote to memory of 4788 1884 Grammarly Promotional Launcher.exe 91 PID 1884 wrote to memory of 4788 1884 Grammarly Promotional Launcher.exe 91 PID 1884 wrote to memory of 4788 1884 Grammarly Promotional Launcher.exe 91 PID 1884 wrote to memory of 4788 1884 Grammarly Promotional Launcher.exe 91 PID 1884 wrote to memory of 4788 1884 Grammarly Promotional Launcher.exe 91 PID 1884 wrote to memory of 4788 1884 Grammarly Promotional Launcher.exe 91 PID 1884 wrote to memory of 4788 1884 Grammarly Promotional Launcher.exe 91 PID 1884 wrote to memory of 4788 1884 Grammarly Promotional Launcher.exe 91
Processes
-
C:\Users\Admin\AppData\Local\Temp\Grammarly Promotional Launcher.exe"C:\Users\Admin\AppData\Local\Temp\Grammarly Promotional Launcher.exe"1⤵
- Checks computer location settings
- Enumerates connected drives
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1884 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBzACAAMQAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2144
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"2⤵PID:2972
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"2⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4788
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
-
Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
-
Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82