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Analysis
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max time kernel
117s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
22/09/2023, 14:55
Static task
static1
Behavioral task
behavioral1
Sample
DOC73287284262.bat.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
DOC73287284262.bat.exe
Resource
win10v2004-20230915-en
General
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Target
DOC73287284262.bat.exe
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Size
527KB
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MD5
7957ee20f42e7158e0fd2cd73e17b436
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SHA1
aed7c6736ede54b4d4eda9ff3cbb8e510eef2a88
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SHA256
48e030cc0ca1af0e027949d1f16b86226e352065d9bf5eba4ca7719efe61b0cf
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SHA512
853ceb5c1465ff9ec2df913f898710795517f5ca7b787dc63e9b9483d72785311f954e886659dc7592ce74269b65fe93e958ffde4935cf2cc7625217dc0f8fff
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SSDEEP
12288:wuvgIb5G6uxzXlsjuapg2dKhtjWHmYZeIwEw:Zu52gDbYS
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.yandex.ru - Port:
587 - Username:
[email protected] - Password:
Chibuonyenze8888 - 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 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
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DOC73287284262.bat.exe Key opened \REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DOC73287284262.bat.exe Key opened \REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DOC73287284262.bat.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2296 set thread context of 2448 2296 DOC73287284262.bat.exe 32 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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.
pid Process 2916 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2448 DOC73287284262.bat.exe 2448 DOC73287284262.bat.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2448 DOC73287284262.bat.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2448 DOC73287284262.bat.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 2296 wrote to memory of 2916 2296 DOC73287284262.bat.exe 30 PID 2296 wrote to memory of 2916 2296 DOC73287284262.bat.exe 30 PID 2296 wrote to memory of 2916 2296 DOC73287284262.bat.exe 30 PID 2296 wrote to memory of 2916 2296 DOC73287284262.bat.exe 30 PID 2296 wrote to memory of 2448 2296 DOC73287284262.bat.exe 32 PID 2296 wrote to memory of 2448 2296 DOC73287284262.bat.exe 32 PID 2296 wrote to memory of 2448 2296 DOC73287284262.bat.exe 32 PID 2296 wrote to memory of 2448 2296 DOC73287284262.bat.exe 32 PID 2296 wrote to memory of 2448 2296 DOC73287284262.bat.exe 32 PID 2296 wrote to memory of 2448 2296 DOC73287284262.bat.exe 32 PID 2296 wrote to memory of 2448 2296 DOC73287284262.bat.exe 32 PID 2296 wrote to memory of 2448 2296 DOC73287284262.bat.exe 32 PID 2296 wrote to memory of 2448 2296 DOC73287284262.bat.exe 32 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DOC73287284262.bat.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DOC73287284262.bat.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\DOC73287284262.bat.exe"C:\Users\Admin\AppData\Local\Temp\DOC73287284262.bat.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2296 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DaumicSuB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp56D7.tmp"2⤵
- Creates scheduled task(s)
PID:2916
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C:\Users\Admin\AppData\Local\Temp\DOC73287284262.bat.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:2448
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD5c6acf04557eeeaf2f9f30bd35fde1514
SHA1f46629ec4f77e895ebefe9be9de523aa42b0f32d
SHA2566083800162d9edc69019539434973e151cb3deb57d9462f5ce7fa9e720f1e508
SHA512e6110aad9e8d6fc5ad1e5adbbdff2ea5ea5eace59d55bda526e6abea526d000591274a66457882e0189fc988ebe08022fbbcc2021ab1a1a993da6332db61e256