Analysis
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max time kernel
133s -
max time network
104s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
15/05/2024, 10:36
Static task
static1
Behavioral task
behavioral1
Sample
55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe
Resource
win7-20240221-en
General
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Target
55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe
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Size
712KB
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MD5
abbe4be24a1416c5bdff6bc59d828c4a
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SHA1
a58f8980db33975bc7b1aad3e358b2432602da5b
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SHA256
55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f
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SHA512
9299290637b7dc75709de2e95b1d6075b305a768e7a256745042b835ff864e64512ace137bef6ebabef5c5d3c7facfd48987665bcd4a992777368a4f9e55f80d
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SSDEEP
12288:0DJ2dkW1L2Gx75qpsc11RtrZXVIrJuXwGEPTtSykjsJzw/SH:0YqWQGx1isczrZXVIoXwGEPTtSyKsbH
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
[email protected] - Password:
dKjVwpK4 dKjVwpK4 dKjVwpK4 - 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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Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 5008 powershell.exe 2972 powershell.exe -
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-1-5-21-1162180587-977231257-2194346871-1000\Control Panel\International\Geo\Nation 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.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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Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1420 set thread context of 4060 1420 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 100 -
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 1872 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
pid Process 1420 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 2972 powershell.exe 2972 powershell.exe 5008 powershell.exe 5008 powershell.exe 1420 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 1420 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 4060 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 4060 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 4060 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 2972 powershell.exe 5008 powershell.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1420 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe Token: SeDebugPrivilege 2972 powershell.exe Token: SeDebugPrivilege 5008 powershell.exe Token: SeDebugPrivilege 4060 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 1420 wrote to memory of 2972 1420 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 94 PID 1420 wrote to memory of 2972 1420 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 94 PID 1420 wrote to memory of 2972 1420 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 94 PID 1420 wrote to memory of 5008 1420 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 96 PID 1420 wrote to memory of 5008 1420 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 96 PID 1420 wrote to memory of 5008 1420 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 96 PID 1420 wrote to memory of 1872 1420 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 98 PID 1420 wrote to memory of 1872 1420 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 98 PID 1420 wrote to memory of 1872 1420 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 98 PID 1420 wrote to memory of 4060 1420 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 100 PID 1420 wrote to memory of 4060 1420 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 100 PID 1420 wrote to memory of 4060 1420 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 100 PID 1420 wrote to memory of 4060 1420 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 100 PID 1420 wrote to memory of 4060 1420 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 100 PID 1420 wrote to memory of 4060 1420 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 100 PID 1420 wrote to memory of 4060 1420 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 100 PID 1420 wrote to memory of 4060 1420 55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe 100
Processes
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C:\Users\Admin\AppData\Local\Temp\55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe"C:\Users\Admin\AppData\Local\Temp\55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1420 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2972
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\isgjyvIx.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5008
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\isgjyvIx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp59D8.tmp"2⤵
- Creates scheduled task(s)
PID:1872
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C:\Users\Admin\AppData\Local\Temp\55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe"C:\Users\Admin\AppData\Local\Temp\55ca6e3bbf1d36f43fb873b3956d9e9ede7586eed508551d463aef4b56ed709f.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4060
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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Filesize
18KB
MD594fb35345af29db03fe090e25efc881a
SHA10665b8c6c3e4938624c7a6a9ef84cd7265021cdb
SHA2569a14b1a255eeb0deb3bca64ce116dfcb8b839699ceeee4fcc171c216f1aab818
SHA51206b81c842bdb07a8d7bb6fe8ae1bf6e352a96fbbe37ea1237a5becc067a99b7a3a0a0965b8ac27dc74c6fe66d71edaab104fc0d7d860bf7958ab26cb8c0e4399
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD560f233802fd12e526c4bc002ae4a26fb
SHA153c6052d10bf5f067f6b7ded2b0b32f0c2abc11e
SHA25661422ef1eb0f120e02ee950c98ce90d2e90731a82e7e6cba0e2c2a6e8f8869c9
SHA5128d681696bc73e8c9879ebf544d8f14b51db924ec26416542ffa3b3525fc7fa70af23c7b46a2eb4aed7fda5dc6a51eeb034103f304d9cdbd90ac6dbb7cb77be75