Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
24/05/2024, 23:09
Static task
static1
Behavioral task
behavioral1
Sample
6fddc9e214a8023e336a1d46b3e7c3cacc708bf24195b6685d88496c0d4a4957.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
6fddc9e214a8023e336a1d46b3e7c3cacc708bf24195b6685d88496c0d4a4957.exe
Resource
win10v2004-20240508-en
General
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Target
6fddc9e214a8023e336a1d46b3e7c3cacc708bf24195b6685d88496c0d4a4957.exe
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Size
2.3MB
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MD5
593f0debb60acfb1b139e3e3a2c3b0e3
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SHA1
705889224c29494f6442a0dfd211f87386e801b6
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SHA256
6fddc9e214a8023e336a1d46b3e7c3cacc708bf24195b6685d88496c0d4a4957
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SHA512
693c0c951e7b1ee9be07c9b573c0691e71a8577b078cd9fe8caeee5d0236cf8e1f11f55f0a91e33d27ad7e7d09f6476c5b4911ee56ca87609ee3bb0ca6868e31
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SSDEEP
49152:1mLtQUU+bCsRecofZjTT8KK6IrDw0kuOuaCFHYV76r65yd7J:1mLtJo18L6T08ulWyd7J
Malware Config
Extracted
Protocol: smtp- Host:
66.29.151.236 - Port:
587 - Username:
[email protected] - Password:
d9GOyTceXsMT
Extracted
agenttesla
Protocol: smtp- Host:
66.29.151.236 - Port:
587 - Username:
[email protected] - Password:
d9GOyTceXsMT - 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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Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
resource yara_rule behavioral2/memory/1588-4905-0x0000000000400000-0x0000000000440000-memory.dmp INDICATOR_EXE_Packed_GEN01 -
Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
resource yara_rule behavioral2/memory/1588-4905-0x0000000000400000-0x0000000000440000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers -
Detects executables packed with SmartAssembly 1 IoCs
resource yara_rule behavioral2/memory/1700-1-0x0000000000D20000-0x0000000000F66000-memory.dmp INDICATOR_EXE_Packed_SmartAssembly -
Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
resource yara_rule behavioral2/memory/1588-4905-0x0000000000400000-0x0000000000440000-memory.dmp INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID -
Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
resource yara_rule behavioral2/memory/1588-4905-0x0000000000400000-0x0000000000440000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store -
Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
resource yara_rule behavioral2/memory/1588-4905-0x0000000000400000-0x0000000000440000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients -
Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
resource yara_rule behavioral2/memory/1588-4905-0x0000000000400000-0x0000000000440000-memory.dmp INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients -
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-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tespad = "C:\\Users\\Admin\\documents\\tespad.exe" 6fddc9e214a8023e336a1d46b3e7c3cacc708bf24195b6685d88496c0d4a4957.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 42 api.ipify.org 41 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1700 set thread context of 1588 1700 6fddc9e214a8023e336a1d46b3e7c3cacc708bf24195b6685d88496c0d4a4957.exe 98 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1588 6fddc9e214a8023e336a1d46b3e7c3cacc708bf24195b6685d88496c0d4a4957.exe 1588 6fddc9e214a8023e336a1d46b3e7c3cacc708bf24195b6685d88496c0d4a4957.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1700 6fddc9e214a8023e336a1d46b3e7c3cacc708bf24195b6685d88496c0d4a4957.exe Token: SeDebugPrivilege 1700 6fddc9e214a8023e336a1d46b3e7c3cacc708bf24195b6685d88496c0d4a4957.exe Token: SeDebugPrivilege 1588 6fddc9e214a8023e336a1d46b3e7c3cacc708bf24195b6685d88496c0d4a4957.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1700 wrote to memory of 1588 1700 6fddc9e214a8023e336a1d46b3e7c3cacc708bf24195b6685d88496c0d4a4957.exe 98 PID 1700 wrote to memory of 1588 1700 6fddc9e214a8023e336a1d46b3e7c3cacc708bf24195b6685d88496c0d4a4957.exe 98 PID 1700 wrote to memory of 1588 1700 6fddc9e214a8023e336a1d46b3e7c3cacc708bf24195b6685d88496c0d4a4957.exe 98 PID 1700 wrote to memory of 1588 1700 6fddc9e214a8023e336a1d46b3e7c3cacc708bf24195b6685d88496c0d4a4957.exe 98 PID 1700 wrote to memory of 1588 1700 6fddc9e214a8023e336a1d46b3e7c3cacc708bf24195b6685d88496c0d4a4957.exe 98 PID 1700 wrote to memory of 1588 1700 6fddc9e214a8023e336a1d46b3e7c3cacc708bf24195b6685d88496c0d4a4957.exe 98 PID 1700 wrote to memory of 1588 1700 6fddc9e214a8023e336a1d46b3e7c3cacc708bf24195b6685d88496c0d4a4957.exe 98 PID 1700 wrote to memory of 1588 1700 6fddc9e214a8023e336a1d46b3e7c3cacc708bf24195b6685d88496c0d4a4957.exe 98
Processes
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C:\Users\Admin\AppData\Local\Temp\6fddc9e214a8023e336a1d46b3e7c3cacc708bf24195b6685d88496c0d4a4957.exe"C:\Users\Admin\AppData\Local\Temp\6fddc9e214a8023e336a1d46b3e7c3cacc708bf24195b6685d88496c0d4a4957.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1700 -
C:\Users\Admin\AppData\Local\Temp\6fddc9e214a8023e336a1d46b3e7c3cacc708bf24195b6685d88496c0d4a4957.exe"C:\Users\Admin\AppData\Local\Temp\6fddc9e214a8023e336a1d46b3e7c3cacc708bf24195b6685d88496c0d4a4957.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1588
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\6fddc9e214a8023e336a1d46b3e7c3cacc708bf24195b6685d88496c0d4a4957.exe.log
Filesize716B
MD5a92a2835b20b01436fb6517e97090bb1
SHA11a179d6b4018cc896708aa112b9d683176ba59b9
SHA256807a02aa126863cf5b802851a3b42d233a856346c0fb13517236815a1764e963
SHA512ef51b2bcfa1cdd33a02176d87b609f8ea4a6c4cfcf69094e88459a19bd1c187872b3a789a46e28869dad63f559cab8d51ac1125a172d71c477f3dd0ec60550a9