Analysis
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max time kernel
115s -
max time network
116s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
08-04-2024 01:22
Static task
static1
Behavioral task
behavioral1
Sample
a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe
Resource
win10v2004-20240226-en
General
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Target
a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe
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Size
637KB
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MD5
ee96ba9c62c6ae099b8970512b43a31e
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SHA1
16e5f6cd0a08d0bb1a063bf254ec50de44629cef
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SHA256
a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b
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SHA512
37ae2052450948a0e0e062e8a96faad7e5aedaa97bf4d684ae6cb87e063a5535520e5856202dbe648b3afca6e1ef95aefd2dae8f927c3d123f49b5eb088817c9
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SSDEEP
12288:IlPloOJRYWq0xbSnwhbL036nXpQ2SusxTCmw9zP1Ha8STEiu8MVsvl:29oOJb/xunw1LHXW2xsxszSTEiF
Malware Config
Extracted
Protocol: smtp- Host:
mail.w5host.com - Port:
587 - Username:
[email protected] - Password:
2M3t5MH8Wwfp
Extracted
agenttesla
Protocol: smtp- Host:
mail.w5host.com - Port:
587 - Username:
[email protected] - Password:
2M3t5MH8Wwfp - 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.
Processes:
a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.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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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 22 api.ipify.org 23 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exedescription pid Process procid_target PID 3268 set thread context of 1800 3268 a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe 102 -
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.
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Suspicious behavior: EnumeratesProcesses 12 IoCs
Processes:
a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exepowershell.exepowershell.exea5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exepid Process 3268 a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe 928 powershell.exe 928 powershell.exe 5028 powershell.exe 5028 powershell.exe 3268 a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe 3268 a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe 5028 powershell.exe 1800 a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe 1800 a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe 1800 a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe 928 powershell.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exepowershell.exepowershell.exea5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exedescription pid Process Token: SeDebugPrivilege 3268 a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe Token: SeDebugPrivilege 928 powershell.exe Token: SeDebugPrivilege 5028 powershell.exe Token: SeDebugPrivilege 1800 a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exedescription pid Process procid_target PID 3268 wrote to memory of 928 3268 a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe 96 PID 3268 wrote to memory of 928 3268 a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe 96 PID 3268 wrote to memory of 928 3268 a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe 96 PID 3268 wrote to memory of 5028 3268 a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe 98 PID 3268 wrote to memory of 5028 3268 a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe 98 PID 3268 wrote to memory of 5028 3268 a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe 98 PID 3268 wrote to memory of 1008 3268 a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe 100 PID 3268 wrote to memory of 1008 3268 a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe 100 PID 3268 wrote to memory of 1008 3268 a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe 100 PID 3268 wrote to memory of 1800 3268 a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe 102 PID 3268 wrote to memory of 1800 3268 a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe 102 PID 3268 wrote to memory of 1800 3268 a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe 102 PID 3268 wrote to memory of 1800 3268 a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe 102 PID 3268 wrote to memory of 1800 3268 a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe 102 PID 3268 wrote to memory of 1800 3268 a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe 102 PID 3268 wrote to memory of 1800 3268 a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe 102 PID 3268 wrote to memory of 1800 3268 a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe 102
Processes
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C:\Users\Admin\AppData\Local\Temp\a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe"C:\Users\Admin\AppData\Local\Temp\a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3268 -
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\a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:928
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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\kGrkguaZtpZlQ.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5028
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kGrkguaZtpZlQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5CB6.tmp"2⤵
- Creates scheduled task(s)
PID:1008
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C:\Users\Admin\AppData\Local\Temp\a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe"C:\Users\Admin\AppData\Local\Temp\a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1800
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\a5f81bb24671f9db326ba9162f00c71b3fedd58e0fe4d5e17076a57db292b68b.exe.log
Filesize1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
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Filesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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Filesize
18KB
MD5b30ac5b25979171191b2f0c1df17ea66
SHA175f39b807208f01f37c0092604ba0f8eb45e7abe
SHA2568c520e301c86a1a493b5498795755823752175785dae9a45c4458252e9519c3d
SHA512c8be1aa9333307545c545b34d9e62c2e630637995af9c3a0cc004f1a6fe0d012e7f93555143d3d4efbd3fc6bc6bc235975f9dbf2a05dbdeae07af74282826b7c
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD51b9adf2d7ef3d4bb028b5d8dcec25da8
SHA17d71ca52b8a23a6f5ee94141821b338f72b3dd41
SHA256299ae2919d28ebfd339de8b5d0e5f2aa61fc35420abd1d97510ac6507dddd5cd
SHA5126a42f3de8b9c87b596ca9366701b3e2ee9980b39e37e6259e0b6e15e93da38bc8445761bb66eff36b0c7f313831c8622d6b625b9f76c97cd836d8df71df6a231