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Analysis
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max time kernel
93s -
max time network
105s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
01/10/2024, 17:25
Static task
static1
Behavioral task
behavioral1
Sample
5678909764.scr.exe
Resource
win7-20240708-en
General
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Target
5678909764.scr.exe
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Size
723KB
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MD5
df30947662e982996810396f8998687c
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SHA1
ab1cca67c1d71f95e516a21995d2965761bc6829
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SHA256
9bcc5591013f066f47701388e95202aa53483c1b73321eecedafd30de2eb381e
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SHA512
41e148f5bd8fe19754f6c676323a1b022c0e79d3be5c5de8b3fc030e2dedb46877e5ff792da2965fc8cfc701724ea914a61a80d43590e77421820d22bb484b9a
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SSDEEP
12288:ZFw5wFD3n6UwXUTCBvvFfg6DUT0/PSnyUt9H+nruF39h9sAFJEyvQXDkR:ZF4K9wXKIvFfZRGyI9enr6H93bnQXW
Malware Config
Extracted
Protocol: ftp- Host:
ftp.fosna.net - Port:
21 - Username:
[email protected] - Password:
(=8fPSH$KO_!
Extracted
agenttesla
Protocol: ftp- Host:
ftp://ftp.fosna.net - Port:
21 - Username:
[email protected] - Password:
(=8fPSH$KO_!
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 4904 powershell.exe 4312 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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation 5678909764.scr.exe -
Uses the VBS compiler for execution 1 TTPs
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 43 ip-api.com -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3088 set thread context of 4880 3088 5678909764.scr.exe 97 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 5 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 5678909764.scr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language vbc.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4896 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 4904 powershell.exe 4312 powershell.exe 4880 vbc.exe 4880 vbc.exe 4904 powershell.exe 4312 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4904 powershell.exe Token: SeDebugPrivilege 4312 powershell.exe Token: SeDebugPrivilege 4880 vbc.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 3088 wrote to memory of 4904 3088 5678909764.scr.exe 91 PID 3088 wrote to memory of 4904 3088 5678909764.scr.exe 91 PID 3088 wrote to memory of 4904 3088 5678909764.scr.exe 91 PID 3088 wrote to memory of 4312 3088 5678909764.scr.exe 93 PID 3088 wrote to memory of 4312 3088 5678909764.scr.exe 93 PID 3088 wrote to memory of 4312 3088 5678909764.scr.exe 93 PID 3088 wrote to memory of 4896 3088 5678909764.scr.exe 95 PID 3088 wrote to memory of 4896 3088 5678909764.scr.exe 95 PID 3088 wrote to memory of 4896 3088 5678909764.scr.exe 95 PID 3088 wrote to memory of 4880 3088 5678909764.scr.exe 97 PID 3088 wrote to memory of 4880 3088 5678909764.scr.exe 97 PID 3088 wrote to memory of 4880 3088 5678909764.scr.exe 97 PID 3088 wrote to memory of 4880 3088 5678909764.scr.exe 97 PID 3088 wrote to memory of 4880 3088 5678909764.scr.exe 97 PID 3088 wrote to memory of 4880 3088 5678909764.scr.exe 97 PID 3088 wrote to memory of 4880 3088 5678909764.scr.exe 97 PID 3088 wrote to memory of 4880 3088 5678909764.scr.exe 97
Processes
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C:\Users\Admin\AppData\Local\Temp\5678909764.scr.exe"C:\Users\Admin\AppData\Local\Temp\5678909764.scr.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3088 -
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\5678909764.scr.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4904
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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\OsYPcQX.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4312
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OsYPcQX" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3275.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:4896
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4880
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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
MD551d017a561fe9f68f776ea5243fe4463
SHA16b37ddba668fa170b23e03008bc54d586f32f618
SHA256c183e447bb8f842f3e27a3ad546cde54523a992ac91129b0b867acc8bd6c1782
SHA512e5b8c2cf6b647337acf0ad210b4d2a5d2f696e45bc7748909931434d82977ca0b29f5437be50af7f4c6e1964c40e3d00f1128a1e8af037ef68b0cc792b91bda2
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD52ffddb25c3b38533ab41fbca83213bc9
SHA1c6ebc9d6db6a6e3a2d746ba0f5f514d41cd33b57
SHA2568aaa073b8a91d9a825b7fb1a799e01bdc55601bd87faa41395c0d4f7aeeb8211
SHA5128d4cbe080c8f4d9d246be9a0ac6e59f7c14f207890eba696edf8b0217d3bd700193aff4ecab092dc21b6f6d0a4e513cf1493feb0df8bb2c7a5f42dc79898770f