Analysis
- max time kernel
137s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system - submitted
02/02/2024, 01:24
Static task
static1
Behavioral task
behavioral1
Sample
RFQ97-64296.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
RFQ97-64296.exe
Resource
win10v2004-20231215-en
General
- Target RFQ97-64296.exe
- Size 731KB
- Sample240202-bsczkachek
- SHA256 cf11dde62aca5b5ad168ee3c0ad75e7df108770d0232a5c05cc88027a17a7e99
- MD5 02cb2e20a635d170c1cf9555f8014585
- SHA1 02bec683811ada12c73d7465da7aa68b7165238e
- SHA512 e5fc4a09f1bca077bf352aa21e034df0a380153d479653fc5c158c6fcdd223c95111a3fef794cf6067d2454243453358da9d3055c44e10fdd6f4461a8518bf36
- SSDEEP 12288:E/KPc8j8qshDJh8g/MVhNwtEM4ZZj45pOx9F3n4o3nqbgxn2m:E/KPc8bshEl0EVA2XZnKQ2
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.dinstelec.com
-
Port
587
-
Username
-
Password
Gabriela2018
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.dinstelec.com
-
Port
587
-
Username
-
Password
Gabriela2018
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- 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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation RFQ97-64296.exe - Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- 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.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4908 set thread context of 1960 4908 RFQ97-64296.exe 97 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1984 schtasks.exe - Suspicious behavior: EnumeratesProcesses 9 IoCs
pid Process 4908 RFQ97-64296.exe 4908 RFQ97-64296.exe 4908 RFQ97-64296.exe 2328 powershell.exe 4704 powershell.exe 1960 RFQ97-64296.exe 1960 RFQ97-64296.exe 2328 powershell.exe 4704 powershell.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4908 RFQ97-64296.exe Token: SeDebugPrivilege 2328 powershell.exe Token: SeDebugPrivilege 4704 powershell.exe Token: SeDebugPrivilege 1960 RFQ97-64296.exe - Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 4908 wrote to memory of 4704 4908 RFQ97-64296.exe 91 PID 4908 wrote to memory of 4704 4908 RFQ97-64296.exe 91 PID 4908 wrote to memory of 4704 4908 RFQ97-64296.exe 91 PID 4908 wrote to memory of 2328 4908 RFQ97-64296.exe 93 PID 4908 wrote to memory of 2328 4908 RFQ97-64296.exe 93 PID 4908 wrote to memory of 2328 4908 RFQ97-64296.exe 93 PID 4908 wrote to memory of 1984 4908 RFQ97-64296.exe 95 PID 4908 wrote to memory of 1984 4908 RFQ97-64296.exe 95 PID 4908 wrote to memory of 1984 4908 RFQ97-64296.exe 95 PID 4908 wrote to memory of 1960 4908 RFQ97-64296.exe 97 PID 4908 wrote to memory of 1960 4908 RFQ97-64296.exe 97 PID 4908 wrote to memory of 1960 4908 RFQ97-64296.exe 97 PID 4908 wrote to memory of 1960 4908 RFQ97-64296.exe 97 PID 4908 wrote to memory of 1960 4908 RFQ97-64296.exe 97 PID 4908 wrote to memory of 1960 4908 RFQ97-64296.exe 97 PID 4908 wrote to memory of 1960 4908 RFQ97-64296.exe 97 PID 4908 wrote to memory of 1960 4908 RFQ97-64296.exe 97
Processes
-
C:\Users\Admin\AppData\Local\Temp\RFQ97-64296.exe"C:\Users\Admin\AppData\Local\Temp\RFQ97-64296.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4908 -
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\RFQ97-64296.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4704
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Gfjrqn.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2328
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\Gfjrqn" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8410.tmp"2⤵
- Creates scheduled task(s)
PID:1984
-
-
C:\Users\Admin\AppData\Local\Temp\RFQ97-64296.exe"C:\Users\Admin\AppData\Local\Temp\RFQ97-64296.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1960
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
- Size 2KB
- SHA256 6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
- MD5 3d086a433708053f9bf9523e1d87a4e8
- SHA1 b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
- SHA512 931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qbbdj5y3.msi.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\tmp8410.tmp
- Size 1KB
- SHA256 4a33f158c6a106b0af826e5c320bb9c8945a00d13d101d3a16cc72dab98f0592
- MD5 5525d9bfe9b5fd399e168ad41b325ae4
- SHA1 5ee8553efe75a4932d1dcd11ef4345e4f7643706
- SHA512 4a9756eef6d3dedee4b33a058e53b790ef02c784745817290353c3224cde1bff67d8adfd37d3b0e034c43edbfcdb04efc9c3e50c685014c4e5708f49e9ddfc89
- MD5 SHA1 SHA512