Analysis
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max time kernel
135s -
max time network
144s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
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submitted
31-03-2023 07:00
General
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Target
TT SWIFT COPY $37,000.00.exe
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Size
646KB
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MD5
50d792a1ee7059bfaf34afd54b32cba8
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SHA1
a4b32d17b36b20155545927450a43eb2d117a306
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SHA256
1b85fb5069a28ee305b4371bda09a96674ec37d9ebc52aecdb6c6245419f067f
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SHA512
85b75b15bdc59e7b12cae69c0d3245ef7b7d45cbb0a1a5e09232c03844400883dfe01a81a4d69752dcd43c7568f96e747959a28adb08e10c72aefa06e623afea
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SSDEEP
12288:AKPFSP0zGiyywVbU+zi93cZ/6QlJ9hS2H:AiFSsGUwVbuFcZ/6d+
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.southernboilers.org - Port:
587 - Username:
info@southernboilers.org - Password:
Sksmoke2018# - Email To:
obtxxxtf@gmail.com
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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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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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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Suspicious use of SetThreadContext 1 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 1 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of SetWindowsHookEx 1 IoCs
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Suspicious use of WriteProcessMemory 11 IoCs
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outlook_office_path 1 IoCs
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outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\TT SWIFT COPY $37,000.00.exe"C:\Users\Admin\AppData\Local\Temp\TT SWIFT COPY $37,000.00.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LSXFKDllBbHhG" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE3DD.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\TT SWIFT COPY $37,000.00.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\TT SWIFT COPY $37,000.00.exe.logFilesize
1KB
MD584e77a587d94307c0ac1357eb4d3d46f
SHA183cc900f9401f43d181207d64c5adba7a85edc1e
SHA256e16024b092a026a9dc00df69d4b9bbcab7b2dc178dc5291fc308a1abc9304a99
SHA512aefb5c62200b3ed97718d20a89990954d4d8acdc0a6a73c5a420f1bba619cb79e70c2cd0a579b9f52dc6b09e1de2cea6cd6cac4376cfee92d94e2c01d310f691
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C:\Users\Admin\AppData\Local\Temp\tmpE3DD.tmpFilesize
1KB
MD57b23a78d44a96961ae3fe90a20663111
SHA124409a8804aba4eae695be07a03be5068f5482fb
SHA256371070167352e06ecb826d9cf27ea6c909eafc3a0830870ad3c069ab283805e7
SHA512701b226669dd52927c3be80d137be709d216eeb0a7532bccf4d66a9dab8059a04082060f7d32caf8872f712a5b7f5de3990992fadb264225b4c324e62c19f8f9
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memory/4404-143-0x0000000000400000-0x0000000000430000-memory.dmpFilesize
192KB
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memory/4404-150-0x0000000007710000-0x00000000078D2000-memory.dmpFilesize
1.8MB
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memory/4404-149-0x0000000007490000-0x00000000074E0000-memory.dmpFilesize
320KB
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memory/4404-148-0x0000000005BF0000-0x0000000005C00000-memory.dmpFilesize
64KB
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memory/4404-147-0x0000000005BF0000-0x0000000005C00000-memory.dmpFilesize
64KB
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memory/4404-146-0x0000000005880000-0x00000000058E6000-memory.dmpFilesize
408KB
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memory/4704-136-0x0000000004E70000-0x0000000004F0C000-memory.dmpFilesize
624KB
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memory/4704-139-0x0000000005090000-0x00000000050A0000-memory.dmpFilesize
64KB
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memory/4704-138-0x0000000005090000-0x00000000050A0000-memory.dmpFilesize
64KB
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memory/4704-137-0x0000000004DE0000-0x0000000004DEA000-memory.dmpFilesize
40KB
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memory/4704-133-0x00000000002D0000-0x0000000000376000-memory.dmpFilesize
664KB
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memory/4704-135-0x0000000004D30000-0x0000000004DC2000-memory.dmpFilesize
584KB
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memory/4704-134-0x00000000051E0000-0x0000000005784000-memory.dmpFilesize
5.6MB