Analysis
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max time kernel
108s -
max time network
48s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
15-04-2022 12:24
Static task
static1
Behavioral task
behavioral1
Sample
d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe
Resource
win10v2004-20220414-en
General
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Target
d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe
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Size
573KB
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MD5
0f658a7d511ee7205d61a7474e9c053e
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SHA1
4bbb4f5c695e26ec2d11f18647cacbd8a2bfee4f
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SHA256
d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406
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SHA512
70a29e983661c5eb9c419823dd381824cae6767dbeca0752e49afb3d729c7f40f870ab6186a26ccc50c116ff4eb1b860309ba8b357e90d050b57477b30d7fcda
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.shamstone.com - Port:
587 - Username:
[email protected] - Password:
fo20192020
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 6 IoCs
resource yara_rule behavioral1/memory/1448-62-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/1448-63-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/1448-64-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/1448-65-0x000000000043766E-mapping.dmp family_agenttesla behavioral1/memory/1448-67-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral1/memory/1448-69-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla -
Drops file in Drivers directory 1 IoCs
description ioc Process File opened for modification C:\Windows\system32\drivers\etc\hosts d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\kprUEGC = "C:\\Users\\Admin\\AppData\\Roaming\\kprUEGC\\kprUEGC.exe" d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 892 set thread context of 1448 892 d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe 29 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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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 1584 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 892 d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe 1448 d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe 1448 d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 892 d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe Token: SeDebugPrivilege 1448 d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 892 wrote to memory of 1584 892 d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe 27 PID 892 wrote to memory of 1584 892 d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe 27 PID 892 wrote to memory of 1584 892 d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe 27 PID 892 wrote to memory of 1584 892 d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe 27 PID 892 wrote to memory of 1448 892 d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe 29 PID 892 wrote to memory of 1448 892 d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe 29 PID 892 wrote to memory of 1448 892 d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe 29 PID 892 wrote to memory of 1448 892 d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe 29 PID 892 wrote to memory of 1448 892 d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe 29 PID 892 wrote to memory of 1448 892 d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe 29 PID 892 wrote to memory of 1448 892 d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe 29 PID 892 wrote to memory of 1448 892 d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe 29 PID 892 wrote to memory of 1448 892 d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe"C:\Users\Admin\AppData\Local\Temp\d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:892 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uGHGycdk" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB710.tmp"2⤵
- Creates scheduled task(s)
PID:1584
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C:\Users\Admin\AppData\Local\Temp\d6b981ca867e1b3fdb05bfbc4ff966caab40e95028f4e20327907c1275c83406.exe"{path}"2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1448
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD51cab090b063f55a23fd808824297869f
SHA10aca535c1ee77079a858138260ad69b676842af6
SHA256a34b975e9d9c670494a634346c263a9f95d9ddba542baeda223788afd6076df5
SHA512915a532c70611ae2bd0cef6efe0559f549966bdce90ddba2f1fcaf3695f618307c756008d809ced5556d2fdfd19d9f7155dd37ebc77dd5c77f6d985f0f9c8a53