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Analysis
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max time kernel
153s -
max time network
159s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-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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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-1-5-21-1045988481-1457812719-2617974652-1000\Control Panel\International\Geo\Nation DOC73287284262.bat.exe -
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-1-5-21-1045988481-1457812719-2617974652-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DOC73287284262.bat.exe Key opened \REGISTRY\USER\S-1-5-21-1045988481-1457812719-2617974652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DOC73287284262.bat.exe Key opened \REGISTRY\USER\S-1-5-21-1045988481-1457812719-2617974652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 DOC73287284262.bat.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 624 set thread context of 944 624 DOC73287284262.bat.exe 99 -
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 2812 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 944 DOC73287284262.bat.exe 944 DOC73287284262.bat.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 944 DOC73287284262.bat.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 944 DOC73287284262.bat.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 624 wrote to memory of 2812 624 DOC73287284262.bat.exe 97 PID 624 wrote to memory of 2812 624 DOC73287284262.bat.exe 97 PID 624 wrote to memory of 2812 624 DOC73287284262.bat.exe 97 PID 624 wrote to memory of 944 624 DOC73287284262.bat.exe 99 PID 624 wrote to memory of 944 624 DOC73287284262.bat.exe 99 PID 624 wrote to memory of 944 624 DOC73287284262.bat.exe 99 PID 624 wrote to memory of 944 624 DOC73287284262.bat.exe 99 PID 624 wrote to memory of 944 624 DOC73287284262.bat.exe 99 PID 624 wrote to memory of 944 624 DOC73287284262.bat.exe 99 PID 624 wrote to memory of 944 624 DOC73287284262.bat.exe 99 PID 624 wrote to memory of 944 624 DOC73287284262.bat.exe 99 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1045988481-1457812719-2617974652-1000\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-1-5-21-1045988481-1457812719-2617974652-1000\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⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:624 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DaumicSuB" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC32C.tmp"2⤵
- Creates scheduled task(s)
PID:2812
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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:944
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD517573558c4e714f606f997e5157afaac
SHA113e16e9415ceef429aaf124139671ebeca09ed23
SHA256c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553
SHA512f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc
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Filesize
1KB
MD574efac8fe813e3be198185c8d1377588
SHA16044074e4a83b6dccaa83fd9134caaa9de8addc7
SHA25698f3ea91a965378353ec16b45e1ffc133f3d5c0bc5e7f2923afd9945afa95859
SHA512cc57ed231c9e07a5768cce1a6982c123c6c0109fa0cea07234240d8d4e4796c82bf99290ac0d979a71f7e9a5ea9dd4e86d8bb65f066e1ebf9b0478fe46261901