Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
05/05/2022, 01:28
Static task
static1
Behavioral task
behavioral1
Sample
Payment Slip.exe
Resource
win7-20220414-en
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
Payment Slip.exe
Resource
win10v2004-20220414-en
0 signatures
0 seconds
General
- Target Payment Slip.exe
- Size 517KB
- Sample220505-bvntvaeha9
- SHA256 1a7627dcff8f8d294411d085df8775e37c8277e86e55bbb5a45afe863a95d208
- MD5 10ee5e66c551f7dfdf146d805de65656
- SHA1 50742d88187e34487b909994fba3422f6359b548
- SHA512 051644bf60b58a56a65490d03a7091e3bca6a2effbe113aa3b412db6b701efcdbf36448297ec65c5ffb72ee6bf581594e9d9d8f37c392551de4e9223edf2d048
- MD5 SHA1 SHA512
Malware Config
Extracted
Credentials
-
Protocol
smtp
-
Host
mail.avizatechnologies.com
-
Port
587
-
Username
-
Password
s?I%3su#oFtB
Extracted
Family
-
agenttesla
Credentials
-
Protocol
smtp
-
Host
mail.avizatechnologies.com
-
Port
587
-
Username
-
Password
s?I%3su#oFtB
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- suricata: ET MALWARE AgentTesla Exfil Via SMTP
suricata: ET MALWARE AgentTesla Exfil Via SMTP
- Drops file in Drivers directory 1 IoCs
description ioc Process File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.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-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation Payment Slip.exe - Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3520 set thread context of 1532 3520 Payment Slip.exe 90 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3836 schtasks.exe - Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 3520 Payment Slip.exe 1532 RegSvcs.exe 1532 RegSvcs.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3520 Payment Slip.exe Token: SeDebugPrivilege 1532 RegSvcs.exe - Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 3520 wrote to memory of 3836 3520 Payment Slip.exe 88 PID 3520 wrote to memory of 3836 3520 Payment Slip.exe 88 PID 3520 wrote to memory of 3836 3520 Payment Slip.exe 88 PID 3520 wrote to memory of 1532 3520 Payment Slip.exe 90 PID 3520 wrote to memory of 1532 3520 Payment Slip.exe 90 PID 3520 wrote to memory of 1532 3520 Payment Slip.exe 90 PID 3520 wrote to memory of 1532 3520 Payment Slip.exe 90 PID 3520 wrote to memory of 1532 3520 Payment Slip.exe 90 PID 3520 wrote to memory of 1532 3520 Payment Slip.exe 90 PID 3520 wrote to memory of 1532 3520 Payment Slip.exe 90 PID 3520 wrote to memory of 1532 3520 Payment Slip.exe 90 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\Payment Slip.exe"C:\Users\Admin\AppData\Local\Temp\Payment Slip.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3520 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VftiwBA" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC45E.tmp"2⤵
- Creates scheduled task(s)
PID:3836
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1532
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\tmpC45E.tmp
- Size 1KB
- SHA256 eb2885d12d2e5699b01596350d588d7228f4c996e990c28e3e0b046362311b60
- MD5 0c6de76b0855a0fb64c74d61f0c52fc9
- SHA1 040159f3a6608ccf8517c123a3847ed5ca1115c7
- SHA512 ae53ede98c3f8acf5cd75ff143acd3f172c994669625a6503a8442da4efd039709d7d00cd0516b4e1707bd1224ac87b534976cb471dab80fff3dda2bb7119352
- MD5 SHA1 SHA512