Analysis
- max time kernel
142s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system - submitted
15/05/2024, 00:48
Static task
static1
Behavioral task
behavioral1
Sample
rRFQ_251477800TM.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
rRFQ_251477800TM.exe
Resource
win10v2004-20240226-en
General
- Target rRFQ_251477800TM.exe
- Size 699KB
- Sample240515-a5r4kshc34
- SHA256 21b046d70a17b53ef0fe65babaf531affca080ff22a167f5c38393f6534a47d6
- MD5 366185ae7ac91aff71406907ce654ece
- SHA1 eb1f72636407ae0e855108f7309d9204ed17b0c1
- SHA512 d7cf01b7900bfeb2e58b22e97203f3c793ff89dd87e49767f85296b0583faf15281bb4d90fd867b0ecb7d69da62e7f07ba07f0e668cc6ddecb28ee575141370b
- SSDEEP 12288:3S3RAXYMjhvPie/rByY7777777777777B+28a7iWDSkUgxIqmf+eyPmPyAYNTuAi:C3RAXYMFniyykL8+Ag2p+N6tUD8B0uHT
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.musabody.com
-
Port
587
-
Username
-
Password
MUSAbody_victoria2018
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.musabody.com
-
Port
587
-
Username
-
Password
MUSAbody_victoria2018
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 3928 powershell.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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation rRFQ_251477800TM.exe - Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ctsdvwT = "C:\\Users\\Admin\\AppData\\Roaming\\ctsdvwT\\ctsdvwT.exe" rRFQ_251477800TM.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4416 set thread context of 1560 4416 rRFQ_251477800TM.exe 101 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 9 IoCs
pid Process 4416 rRFQ_251477800TM.exe 4416 rRFQ_251477800TM.exe 4416 rRFQ_251477800TM.exe 1560 rRFQ_251477800TM.exe 1560 rRFQ_251477800TM.exe 1560 rRFQ_251477800TM.exe 3928 powershell.exe 3928 powershell.exe 3928 powershell.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4416 rRFQ_251477800TM.exe Token: SeDebugPrivilege 1560 rRFQ_251477800TM.exe Token: SeDebugPrivilege 3928 powershell.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1560 rRFQ_251477800TM.exe - Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 4416 wrote to memory of 3928 4416 rRFQ_251477800TM.exe 99 PID 4416 wrote to memory of 3928 4416 rRFQ_251477800TM.exe 99 PID 4416 wrote to memory of 3928 4416 rRFQ_251477800TM.exe 99 PID 4416 wrote to memory of 1560 4416 rRFQ_251477800TM.exe 101 PID 4416 wrote to memory of 1560 4416 rRFQ_251477800TM.exe 101 PID 4416 wrote to memory of 1560 4416 rRFQ_251477800TM.exe 101 PID 4416 wrote to memory of 1560 4416 rRFQ_251477800TM.exe 101 PID 4416 wrote to memory of 1560 4416 rRFQ_251477800TM.exe 101 PID 4416 wrote to memory of 1560 4416 rRFQ_251477800TM.exe 101 PID 4416 wrote to memory of 1560 4416 rRFQ_251477800TM.exe 101 PID 4416 wrote to memory of 1560 4416 rRFQ_251477800TM.exe 101
Processes
-
C:\Users\Admin\AppData\Local\Temp\rRFQ_251477800TM.exe"C:\Users\Admin\AppData\Local\Temp\rRFQ_251477800TM.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4416 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\rRFQ_251477800TM.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3928
-
-
C:\Users\Admin\AppData\Local\Temp\rRFQ_251477800TM.exe"C:\Users\Admin\AppData\Local\Temp\rRFQ_251477800TM.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1560
-
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3912 --field-trial-handle=2248,i,10247514684337323751,15511974759131734137,262144 --variations-seed-version /prefetch:81⤵PID:956
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xoyylafh.2uc.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- MD5 SHA1 SHA512