Analysis
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max time kernel
119s -
max time network
121s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
17-09-2024 14:43
Static task
static1
Behavioral task
behavioral1
Sample
Ds1m7vqeVcwZRKF.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
Ds1m7vqeVcwZRKF.exe
Resource
win10v2004-20240802-en
General
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Target
Ds1m7vqeVcwZRKF.exe
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Size
640KB
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MD5
4a90f11d1d20d21bff2b39a6318323db
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SHA1
c26d09b8004b6f9b1a3cbf9a1cf612f70344c0b6
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SHA256
c33f479dbf220bcc94b3ec3b50291bcb563dd42be1c93f946b06d162ad913675
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SHA512
c2cd0944c29216459797b06c6df9502402604a51c469e02d7383ad89399c7b792d60586781c71ada044a2456975f8561aa42258bc5477aa439283e5360fb9238
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SSDEEP
12288:O6Fbylg0LO2zqsnelpU4DySbSDC2CrzQ2px4hiMEouh:Okag5w74HbIC2mwgMEnh
Malware Config
Extracted
Protocol: smtp- Host:
mail.apexrnun.com - Port:
587 - Username:
[email protected] - Password:
%qroUozO;(C2Rlyb
Extracted
agenttesla
Protocol: smtp- Host:
mail.apexrnun.com - Port:
587 - Username:
[email protected] - Password:
%qroUozO;(C2Rlyb - Email To:
[email protected]
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
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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 2012 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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation Ds1m7vqeVcwZRKF.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 21 ip-api.com -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4880 set thread context of 2868 4880 Ds1m7vqeVcwZRKF.exe 91 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 Ds1m7vqeVcwZRKF.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Ds1m7vqeVcwZRKF.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2868 Ds1m7vqeVcwZRKF.exe 2868 Ds1m7vqeVcwZRKF.exe 2012 powershell.exe 2012 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2868 Ds1m7vqeVcwZRKF.exe Token: SeDebugPrivilege 2012 powershell.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 4880 wrote to memory of 2012 4880 Ds1m7vqeVcwZRKF.exe 89 PID 4880 wrote to memory of 2012 4880 Ds1m7vqeVcwZRKF.exe 89 PID 4880 wrote to memory of 2012 4880 Ds1m7vqeVcwZRKF.exe 89 PID 4880 wrote to memory of 2868 4880 Ds1m7vqeVcwZRKF.exe 91 PID 4880 wrote to memory of 2868 4880 Ds1m7vqeVcwZRKF.exe 91 PID 4880 wrote to memory of 2868 4880 Ds1m7vqeVcwZRKF.exe 91 PID 4880 wrote to memory of 2868 4880 Ds1m7vqeVcwZRKF.exe 91 PID 4880 wrote to memory of 2868 4880 Ds1m7vqeVcwZRKF.exe 91 PID 4880 wrote to memory of 2868 4880 Ds1m7vqeVcwZRKF.exe 91 PID 4880 wrote to memory of 2868 4880 Ds1m7vqeVcwZRKF.exe 91 PID 4880 wrote to memory of 2868 4880 Ds1m7vqeVcwZRKF.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\Ds1m7vqeVcwZRKF.exe"C:\Users\Admin\AppData\Local\Temp\Ds1m7vqeVcwZRKF.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4880 -
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\Ds1m7vqeVcwZRKF.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2012
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C:\Users\Admin\AppData\Local\Temp\Ds1m7vqeVcwZRKF.exe"C:\Users\Admin\AppData\Local\Temp\Ds1m7vqeVcwZRKF.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2868
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Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
4Credentials In Files
3Credentials in Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82