Analysis
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max time kernel
147s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
12-03-2024 01:46
Static task
static1
Behavioral task
behavioral1
Sample
c22581a6e275d276141977cf7eb50853.exe
Resource
win7-20240221-en
General
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Target
c22581a6e275d276141977cf7eb50853.exe
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Size
488KB
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MD5
c22581a6e275d276141977cf7eb50853
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SHA1
bdf5f8adbeefd1776a1225f2fff84dcbff19faf1
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SHA256
e1eb6222a8e97a11a12b0306cc2084152d2c53e4969178c8dcc3d94012fcdad2
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SHA512
ffeecb806e2d61bbfc9cd2647a591cb63aba0269a17cda73fbc94104fe189a9ace5e4233dcbae9d1e4fe49ffd3649b6d5323c8de93e099e993af06ec3a0d8bc1
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SSDEEP
12288:Pi7n6QjBtbKjD/AkVmSc0NhOLS26ni/WlQ0EC:q7nhvbKvfmkALKi/Wq0E
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.rajapindah.com - Port:
587 - Username:
[email protected] - Password:
#r4j#citeureup#13
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/2276-9-0x0000000000400000-0x0000000000450000-memory.dmp family_agenttesla -
ReZer0 packer 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
Processes:
resource yara_rule behavioral2/memory/1792-7-0x0000000006480000-0x00000000064D8000-memory.dmp rezer0 -
Disables Task Manager via registry modification
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Drops file in Drivers directory 1 IoCs
Processes:
RegSvcs.exedescription ioc process File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
c22581a6e275d276141977cf7eb50853.exedescription pid process target process PID 1792 set thread context of 2276 1792 c22581a6e275d276141977cf7eb50853.exe RegSvcs.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 5056 2276 WerFault.exe RegSvcs.exe -
Modifies registry key 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
c22581a6e275d276141977cf7eb50853.exeRegSvcs.exepid process 1792 c22581a6e275d276141977cf7eb50853.exe 1792 c22581a6e275d276141977cf7eb50853.exe 2276 RegSvcs.exe 2276 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
c22581a6e275d276141977cf7eb50853.exeRegSvcs.exedescription pid process Token: SeDebugPrivilege 1792 c22581a6e275d276141977cf7eb50853.exe Token: SeDebugPrivilege 2276 RegSvcs.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
c22581a6e275d276141977cf7eb50853.exeRegSvcs.exedescription pid process target process PID 1792 wrote to memory of 4572 1792 c22581a6e275d276141977cf7eb50853.exe RegSvcs.exe PID 1792 wrote to memory of 4572 1792 c22581a6e275d276141977cf7eb50853.exe RegSvcs.exe PID 1792 wrote to memory of 4572 1792 c22581a6e275d276141977cf7eb50853.exe RegSvcs.exe PID 1792 wrote to memory of 2276 1792 c22581a6e275d276141977cf7eb50853.exe RegSvcs.exe PID 1792 wrote to memory of 2276 1792 c22581a6e275d276141977cf7eb50853.exe RegSvcs.exe PID 1792 wrote to memory of 2276 1792 c22581a6e275d276141977cf7eb50853.exe RegSvcs.exe PID 1792 wrote to memory of 2276 1792 c22581a6e275d276141977cf7eb50853.exe RegSvcs.exe PID 1792 wrote to memory of 2276 1792 c22581a6e275d276141977cf7eb50853.exe RegSvcs.exe PID 1792 wrote to memory of 2276 1792 c22581a6e275d276141977cf7eb50853.exe RegSvcs.exe PID 1792 wrote to memory of 2276 1792 c22581a6e275d276141977cf7eb50853.exe RegSvcs.exe PID 1792 wrote to memory of 2276 1792 c22581a6e275d276141977cf7eb50853.exe RegSvcs.exe PID 2276 wrote to memory of 2820 2276 RegSvcs.exe REG.exe PID 2276 wrote to memory of 2820 2276 RegSvcs.exe REG.exe PID 2276 wrote to memory of 2820 2276 RegSvcs.exe REG.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c22581a6e275d276141977cf7eb50853.exe"C:\Users\Admin\AppData\Local\Temp\c22581a6e275d276141977cf7eb50853.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\REG.exeREG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f3⤵
- Modifies registry key
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2276 -s 14963⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2276 -ip 22761⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1792-8-0x0000000006580000-0x000000000661C000-memory.dmpFilesize
624KB
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memory/1792-13-0x00000000750A0000-0x0000000075850000-memory.dmpFilesize
7.7MB
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memory/1792-0-0x00000000750A0000-0x0000000075850000-memory.dmpFilesize
7.7MB
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memory/1792-3-0x0000000005030000-0x00000000050C2000-memory.dmpFilesize
584KB
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memory/1792-4-0x0000000005330000-0x0000000005340000-memory.dmpFilesize
64KB
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memory/1792-5-0x0000000002C60000-0x0000000002C6A000-memory.dmpFilesize
40KB
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memory/1792-6-0x0000000005120000-0x0000000005128000-memory.dmpFilesize
32KB
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memory/1792-7-0x0000000006480000-0x00000000064D8000-memory.dmpFilesize
352KB
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memory/1792-2-0x0000000005710000-0x0000000005CB4000-memory.dmpFilesize
5.6MB
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memory/1792-1-0x0000000000680000-0x0000000000700000-memory.dmpFilesize
512KB
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memory/2276-20-0x00000000750A0000-0x0000000075850000-memory.dmpFilesize
7.7MB
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memory/2276-11-0x00000000750A0000-0x0000000075850000-memory.dmpFilesize
7.7MB
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memory/2276-12-0x00000000056C0000-0x00000000056D0000-memory.dmpFilesize
64KB
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memory/2276-14-0x0000000005370000-0x0000000005388000-memory.dmpFilesize
96KB
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memory/2276-15-0x0000000005B80000-0x0000000005BE6000-memory.dmpFilesize
408KB
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memory/2276-17-0x00000000750A0000-0x0000000075850000-memory.dmpFilesize
7.7MB
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memory/2276-18-0x00000000056C0000-0x00000000056D0000-memory.dmpFilesize
64KB
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memory/2276-19-0x00000000067B0000-0x0000000006800000-memory.dmpFilesize
320KB
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memory/2276-9-0x0000000000400000-0x0000000000450000-memory.dmpFilesize
320KB