Analysis
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max time kernel
139s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20231023-en -
resource tags
arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system -
submitted
24/10/2023, 07:53
Static task
static1
Behavioral task
behavioral1
Sample
LJl86VfF8Y8HwLL.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
LJl86VfF8Y8HwLL.exe
Resource
win10v2004-20231023-en
General
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Target
LJl86VfF8Y8HwLL.exe
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Size
656KB
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MD5
4dabc7d8db7be86a8fa3afdbb9963025
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SHA1
9084477d8ed0a2c4fa0d5a601e26309aa082ca44
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SHA256
a393a7c0bcd606e0e4441cf58d1dab63b57e6cedb02fcc72a0a78d273e2b29b5
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SHA512
d9d86085ce1c3951c4938c7523714350104744d5358dbec791bcb0aad2a9d9e4615ef5ed0032f280cd3e5c20a5dbd9974d413ff9d4586cc37f84d8b0d1e001c3
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SSDEEP
12288:IDDJ92IWiN9ELwSEgSiWX06CIWcQ1rJvT8IjyASJihcbvvWKLB:s/e499SbxW06C3duAxOb+g
Malware Config
Extracted
Protocol: smtp- Host:
mail.wirtschaftsinkaso.com - Port:
587 - Username:
[email protected] - Password:
BnW##21t
Extracted
agenttesla
Protocol: smtp- Host:
mail.wirtschaftsinkaso.com - Port:
587 - Username:
[email protected] - Password:
BnW##21t - 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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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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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3125601242-331447593-1512828465-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\BsrzRc = "C:\\Users\\Admin\\AppData\\Roaming\\BsrzRc\\BsrzRc.exe" LJl86VfF8Y8HwLL.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 33 api.ipify.org 34 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4464 set thread context of 4564 4464 LJl86VfF8Y8HwLL.exe 92 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4564 LJl86VfF8Y8HwLL.exe 4564 LJl86VfF8Y8HwLL.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4564 LJl86VfF8Y8HwLL.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4464 wrote to memory of 4564 4464 LJl86VfF8Y8HwLL.exe 92 PID 4464 wrote to memory of 4564 4464 LJl86VfF8Y8HwLL.exe 92 PID 4464 wrote to memory of 4564 4464 LJl86VfF8Y8HwLL.exe 92 PID 4464 wrote to memory of 4564 4464 LJl86VfF8Y8HwLL.exe 92 PID 4464 wrote to memory of 4564 4464 LJl86VfF8Y8HwLL.exe 92 PID 4464 wrote to memory of 4564 4464 LJl86VfF8Y8HwLL.exe 92 PID 4464 wrote to memory of 4564 4464 LJl86VfF8Y8HwLL.exe 92 PID 4464 wrote to memory of 4564 4464 LJl86VfF8Y8HwLL.exe 92
Processes
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C:\Users\Admin\AppData\Local\Temp\LJl86VfF8Y8HwLL.exe"C:\Users\Admin\AppData\Local\Temp\LJl86VfF8Y8HwLL.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4464 -
C:\Users\Admin\AppData\Local\Temp\LJl86VfF8Y8HwLL.exe"C:\Users\Admin\AppData\Local\Temp\LJl86VfF8Y8HwLL.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4564
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3