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Analysis
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max time kernel
148s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
04/01/2023, 07:32
Static task
static1
Behavioral task
behavioral1
Sample
2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe
Resource
win10v2004-20221111-en
General
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Target
2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe
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Size
943KB
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MD5
21e603ea77b316cce2ec68a44cd735c7
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SHA1
2bc285f3a8bd60f55bd659b360b1c77eab820b5e
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SHA256
221a81d66ccd5492f313733aca66534af9350f427c50a6b30c7a65dce1ea0fbb
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SHA512
0256baa5a9e545d3936e98a77eebdaa457aaa78c25c2c9717762d2fbaa103ab26f45bb93164a40374ec0b324b538c42992440ffda7df89b8bef621d2a694b39e
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SSDEEP
12288:ziWHxYV/jqmkMD2DExj6L+lMBebblLTMGa9EDL9y3r9FibYjIaCJVbDGo:ztHxYgExj6L+lMBebbRMCD7sjIxJDv
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
host39.registrar-servers.com - Port:
587 - Username:
[email protected] - Password:
payment 12345
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-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation 2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe -
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
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2bc285f3a8bd60f55bd659b360b1c77eab820b5e.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 26 api.ipify.org 27 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 432 set thread context of 4088 432 2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe 85 -
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.
pid Process 3272 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 432 2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe 4088 2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe 4088 2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe 4088 2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 432 2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe Token: SeDebugPrivilege 4088 2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 432 wrote to memory of 3272 432 2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe 83 PID 432 wrote to memory of 3272 432 2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe 83 PID 432 wrote to memory of 3272 432 2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe 83 PID 432 wrote to memory of 4088 432 2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe 85 PID 432 wrote to memory of 4088 432 2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe 85 PID 432 wrote to memory of 4088 432 2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe 85 PID 432 wrote to memory of 4088 432 2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe 85 PID 432 wrote to memory of 4088 432 2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe 85 PID 432 wrote to memory of 4088 432 2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe 85 PID 432 wrote to memory of 4088 432 2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe 85 PID 432 wrote to memory of 4088 432 2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe 85 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe"C:\Users\Admin\AppData\Local\Temp\2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:432 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CDNABzJvQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDB9F.tmp"2⤵
- Creates scheduled task(s)
PID:3272
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C:\Users\Admin\AppData\Local\Temp\2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4088
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\2bc285f3a8bd60f55bd659b360b1c77eab820b5e.exe.log
Filesize1KB
MD584e77a587d94307c0ac1357eb4d3d46f
SHA183cc900f9401f43d181207d64c5adba7a85edc1e
SHA256e16024b092a026a9dc00df69d4b9bbcab7b2dc178dc5291fc308a1abc9304a99
SHA512aefb5c62200b3ed97718d20a89990954d4d8acdc0a6a73c5a420f1bba619cb79e70c2cd0a579b9f52dc6b09e1de2cea6cd6cac4376cfee92d94e2c01d310f691
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Filesize
1KB
MD5624678b97b18bdff35ece1b3a72e5d0f
SHA1dc51ca4ebab53e77b29baa6ea5f650f0b39602f9
SHA2560d7013b15353bf7845c9c5895dcc795bea2ddda4fd36a18b21379ec9177f8a25
SHA512970c870a15578c4a655d1800414fb3f8c60c4bf04821f2d0a57c6bfd554b198b999c040d200f7a1b8fe1bf740639ec7ef3326db8fa6f226377a4ea2187e47f03