Analysis
- max time kernel
87s - max time network
6s - platform
windows7_x64 - resource
win7 - submitted
01/07/2020, 11:34
Static task
static1
Behavioral task
behavioral1
Sample
DHL Shipment_Details.exe
Resource
win7
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
DHL Shipment_Details.exe
Resource
win10v200430
0 signatures
0 seconds
General
- Target DHL Shipment_Details.exe
- Size 537KB
- Sample200701-3f6v281spa
- SHA256 ce83bccf11e2f79616c5fac945dce6e845aa1a3b7f027cc78f7a46cf7151af13
- MD5 98781d0fd29d24d2186f558f39a90c34
- SHA1 fb06a335d26db7ac09ce78124d6ddf28a3b7ae5f
- SHA512 f7326245a576f12bd1eeee1e290c675879ed6340dd8958b1098626f263470b8b92f06dc479f9123516df2d73f87f3a4e5550af356d24af722c135c15aa44864b
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
-
agenttesla
Credentials
-
Protocol
smtp
-
Host
mail.mdist.us
-
Port
587
-
Username
-
Password
Receiving#4321
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 4 IoCs
resource yara_rule behavioral1/memory/812-4-0x0000000000400000-0x0000000000450000-memory.dmp family_agenttesla behavioral1/memory/812-5-0x00000000004474DE-mapping.dmp family_agenttesla behavioral1/memory/812-6-0x0000000000400000-0x0000000000450000-memory.dmp family_agenttesla behavioral1/memory/812-7-0x0000000000400000-0x0000000000450000-memory.dmp family_agenttesla - Drops file in Drivers directory 1 IoCs
description ioc Process File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\CpSnJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CpSnJ\\CpSnJ.exe" RegSvcs.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1108 set thread context of 812 1108 DHL Shipment_Details.exe 26 - 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 1552 schtasks.exe - Modifies registry key 1 TTPs 1 IoCs
pid Process 1916 REG.exe - Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1108 DHL Shipment_Details.exe 812 RegSvcs.exe 812 RegSvcs.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1108 DHL Shipment_Details.exe Token: SeDebugPrivilege 812 RegSvcs.exe - Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 1108 wrote to memory of 1552 1108 DHL Shipment_Details.exe 24 PID 1108 wrote to memory of 1552 1108 DHL Shipment_Details.exe 24 PID 1108 wrote to memory of 1552 1108 DHL Shipment_Details.exe 24 PID 1108 wrote to memory of 1552 1108 DHL Shipment_Details.exe 24 PID 1108 wrote to memory of 812 1108 DHL Shipment_Details.exe 26 PID 1108 wrote to memory of 812 1108 DHL Shipment_Details.exe 26 PID 1108 wrote to memory of 812 1108 DHL Shipment_Details.exe 26 PID 1108 wrote to memory of 812 1108 DHL Shipment_Details.exe 26 PID 1108 wrote to memory of 812 1108 DHL Shipment_Details.exe 26 PID 1108 wrote to memory of 812 1108 DHL Shipment_Details.exe 26 PID 1108 wrote to memory of 812 1108 DHL Shipment_Details.exe 26 PID 1108 wrote to memory of 812 1108 DHL Shipment_Details.exe 26 PID 1108 wrote to memory of 812 1108 DHL Shipment_Details.exe 26 PID 1108 wrote to memory of 812 1108 DHL Shipment_Details.exe 26 PID 1108 wrote to memory of 812 1108 DHL Shipment_Details.exe 26 PID 1108 wrote to memory of 812 1108 DHL Shipment_Details.exe 26 PID 812 wrote to memory of 1916 812 RegSvcs.exe 30 PID 812 wrote to memory of 1916 812 RegSvcs.exe 30 PID 812 wrote to memory of 1916 812 RegSvcs.exe 30 PID 812 wrote to memory of 1916 812 RegSvcs.exe 30
Processes
-
C:\Users\Admin\AppData\Local\Temp\DHL Shipment_Details.exe"C:\Users\Admin\AppData\Local\Temp\DHL Shipment_Details.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1108 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KRuDOIFQTers" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8AFF.tmp"2⤵
- Creates scheduled task(s)
PID:1552
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:812 -
C:\Windows\SysWOW64\REG.exeREG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System / v DisableTaskMgr / t REG_DWORD / d 1 / f3⤵
- Modifies registry key
PID:1916
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