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Analysis
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max time kernel
122s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
05/01/2025, 21:23
Static task
static1
Behavioral task
behavioral1
Sample
olii.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
olii.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/aneyji.dll
Resource
win7-20240903-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/aneyji.dll
Resource
win10v2004-20241007-en
General
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Target
$PLUGINSDIR/aneyji.dll
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Size
19KB
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MD5
f7a30cb571aa862021ff786169f72a80
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SHA1
d002635afeacd67ad2e5764d4dd07e0ec5f49ae3
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SHA256
3c3b81e2f3de386bb78562b8005fcc582aa83d1bd5ac99aca14bd235f401c018
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SHA512
7fc63a94a72b93ff57645d3e8c92726b7f77976ed5801461bfdaf4638dd8376565dad5f6663d1e0bd064e7521230b2b9f7aae90a5733f387fa003b22b501c69e
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SSDEEP
384:mjrLtiTvRxxt1BoXiaQxmCc1abG8QMqjfB4z:krLYTvR7xJxmpKG8ay
Malware Config
Extracted
agenttesla
https://api.telegram.org/bot2046248941:AAG5Z0PyWwtApmPaysBm59voK10ec9Rgnaw/sendDocument
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Agenttesla family
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AgentTesla payload 4 IoCs
resource yara_rule behavioral3/memory/808-1-0x0000000000400000-0x000000000044B000-memory.dmp family_agenttesla behavioral3/memory/808-5-0x0000000000400000-0x000000000044B000-memory.dmp family_agenttesla behavioral3/memory/808-3-0x0000000000400000-0x000000000044B000-memory.dmp family_agenttesla behavioral3/memory/808-7-0x0000000000230000-0x000000000026C000-memory.dmp family_agenttesla -
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 3 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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 rundll32.exe Key opened \REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 rundll32.exe Key opened \REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 rundll32.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2396 set thread context of 808 2396 rundll32.exe 29 -
System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 808 rundll32.exe 808 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 808 rundll32.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 2868 wrote to memory of 2396 2868 rundll32.exe 28 PID 2868 wrote to memory of 2396 2868 rundll32.exe 28 PID 2868 wrote to memory of 2396 2868 rundll32.exe 28 PID 2868 wrote to memory of 2396 2868 rundll32.exe 28 PID 2868 wrote to memory of 2396 2868 rundll32.exe 28 PID 2868 wrote to memory of 2396 2868 rundll32.exe 28 PID 2868 wrote to memory of 2396 2868 rundll32.exe 28 PID 2396 wrote to memory of 808 2396 rundll32.exe 29 PID 2396 wrote to memory of 808 2396 rundll32.exe 29 PID 2396 wrote to memory of 808 2396 rundll32.exe 29 PID 2396 wrote to memory of 808 2396 rundll32.exe 29 PID 2396 wrote to memory of 808 2396 rundll32.exe 29 PID 2396 wrote to memory of 808 2396 rundll32.exe 29 PID 2396 wrote to memory of 808 2396 rundll32.exe 29 PID 2396 wrote to memory of 808 2396 rundll32.exe 29 PID 2396 wrote to memory of 808 2396 rundll32.exe 29 PID 2396 wrote to memory of 808 2396 rundll32.exe 29 PID 2396 wrote to memory of 808 2396 rundll32.exe 29 PID 2396 wrote to memory of 808 2396 rundll32.exe 29 PID 2396 wrote to memory of 808 2396 rundll32.exe 29 PID 2396 wrote to memory of 808 2396 rundll32.exe 29 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 rundll32.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\aneyji.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2868 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\aneyji.dll,#12⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2396 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\aneyji.dll,#13⤵
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:808
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