Analysis
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max time kernel
149s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
29-04-2024 01:01
Static task
static1
Behavioral task
behavioral1
Sample
cacccbfd0c9975dbca0b686f166c1fac1a144cd379937ee1a0aa66183c83601d.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
cacccbfd0c9975dbca0b686f166c1fac1a144cd379937ee1a0aa66183c83601d.exe
Resource
win10v2004-20240426-en
General
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Target
cacccbfd0c9975dbca0b686f166c1fac1a144cd379937ee1a0aa66183c83601d.exe
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Size
884KB
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MD5
f75f9606f6aeb72bf28ecd1419542d7d
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SHA1
bc7eca6ece5ace34b990e8782dbe1782c33ea91b
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SHA256
cacccbfd0c9975dbca0b686f166c1fac1a144cd379937ee1a0aa66183c83601d
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SHA512
25cf388cbf234948055f5096010615745b92a6aea28328910dde72a13fdfc7f0a580f2e6b9b0544875a985da83f41a2fe04c7dd36eb687095a768ef31c1dd64f
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SSDEEP
24576:L0jj5VRQElW+B50gZuzTt/MDFdws7Sfn/eBGhW3:bElW+B53ZuPBaF2X7hW3
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.bestconstructltd.com - Port:
587 - Username:
[email protected] - Password:
Cm54227290 - 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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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 16 api.ipify.org 17 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
cacccbfd0c9975dbca0b686f166c1fac1a144cd379937ee1a0aa66183c83601d.exedescription pid process target process PID 2408 set thread context of 1936 2408 cacccbfd0c9975dbca0b686f166c1fac1a144cd379937ee1a0aa66183c83601d.exe regasm.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1052 1936 WerFault.exe regasm.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
regasm.exepid process 1936 regasm.exe 1936 regasm.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
cacccbfd0c9975dbca0b686f166c1fac1a144cd379937ee1a0aa66183c83601d.exeregasm.exedescription pid process Token: SeDebugPrivilege 2408 cacccbfd0c9975dbca0b686f166c1fac1a144cd379937ee1a0aa66183c83601d.exe Token: SeDebugPrivilege 1936 regasm.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
cacccbfd0c9975dbca0b686f166c1fac1a144cd379937ee1a0aa66183c83601d.exedescription pid process target process PID 2408 wrote to memory of 1936 2408 cacccbfd0c9975dbca0b686f166c1fac1a144cd379937ee1a0aa66183c83601d.exe regasm.exe PID 2408 wrote to memory of 1936 2408 cacccbfd0c9975dbca0b686f166c1fac1a144cd379937ee1a0aa66183c83601d.exe regasm.exe PID 2408 wrote to memory of 1936 2408 cacccbfd0c9975dbca0b686f166c1fac1a144cd379937ee1a0aa66183c83601d.exe regasm.exe PID 2408 wrote to memory of 1936 2408 cacccbfd0c9975dbca0b686f166c1fac1a144cd379937ee1a0aa66183c83601d.exe regasm.exe PID 2408 wrote to memory of 1936 2408 cacccbfd0c9975dbca0b686f166c1fac1a144cd379937ee1a0aa66183c83601d.exe regasm.exe PID 2408 wrote to memory of 1936 2408 cacccbfd0c9975dbca0b686f166c1fac1a144cd379937ee1a0aa66183c83601d.exe regasm.exe PID 2408 wrote to memory of 1936 2408 cacccbfd0c9975dbca0b686f166c1fac1a144cd379937ee1a0aa66183c83601d.exe regasm.exe PID 2408 wrote to memory of 1936 2408 cacccbfd0c9975dbca0b686f166c1fac1a144cd379937ee1a0aa66183c83601d.exe regasm.exe PID 2408 wrote to memory of 4588 2408 cacccbfd0c9975dbca0b686f166c1fac1a144cd379937ee1a0aa66183c83601d.exe regasm.exe PID 2408 wrote to memory of 4588 2408 cacccbfd0c9975dbca0b686f166c1fac1a144cd379937ee1a0aa66183c83601d.exe regasm.exe PID 2408 wrote to memory of 4588 2408 cacccbfd0c9975dbca0b686f166c1fac1a144cd379937ee1a0aa66183c83601d.exe regasm.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\cacccbfd0c9975dbca0b686f166c1fac1a144cd379937ee1a0aa66183c83601d.exe"C:\Users\Admin\AppData\Local\Temp\cacccbfd0c9975dbca0b686f166c1fac1a144cd379937ee1a0aa66183c83601d.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2408 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1936 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1936 -s 21203⤵
- Program crash
PID:1052 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"2⤵PID:4588
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 1936 -ip 19361⤵PID:832
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1936-4-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB
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memory/1936-5-0x0000000074140000-0x00000000748F0000-memory.dmpFilesize
7.7MB
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memory/1936-6-0x0000000006080000-0x0000000006624000-memory.dmpFilesize
5.6MB
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memory/1936-7-0x0000000005AC0000-0x0000000005AD0000-memory.dmpFilesize
64KB
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memory/1936-8-0x0000000005A00000-0x0000000005A66000-memory.dmpFilesize
408KB
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memory/1936-10-0x0000000074140000-0x00000000748F0000-memory.dmpFilesize
7.7MB
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memory/2408-0-0x000001B79CA00000-0x000001B79CA50000-memory.dmpFilesize
320KB
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memory/2408-1-0x00007FFF45B00000-0x00007FFF465C1000-memory.dmpFilesize
10.8MB
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memory/2408-2-0x000001B79CFA0000-0x000001B79CFB0000-memory.dmpFilesize
64KB
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memory/2408-3-0x000001B7B6DE0000-0x000001B7B6E76000-memory.dmpFilesize
600KB
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memory/2408-9-0x00007FFF45B00000-0x00007FFF465C1000-memory.dmpFilesize
10.8MB