agenttesla | 04cfff61283ba0f43c2e3ecd1b36a359bf9b374bf5ee651fbd93ae1933357f97

General

Target
TT- Swift Copy.exe
Size 1.5MB
Sample201109-j7b9fd882j
SHA256 04cfff61283ba0f43c2e3ecd1b36a359bf9b374bf5ee651fbd93ae1933357f97
MD5 a5aa7ef05189eeda5a30a40fa92dd9bb
SHA1 d1bea5aa1a0db2b1c1699947553e9d7be84e47d4
SHA512 e8db17ba1e6c48fb5bcc1d25a82d54f940ca17c2ccf1eddb178432509bf7764ef4ad63fdd0571b83bd74ec2d2cdd8b015537c67cd41d76678f3d7a39b9110118
MD5 SHA1 SHA512

Score

10^/10

agenttesla evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.hotel71.com.bd
Port
587
Username
[email protected]
Password
9+^va&phP1v9

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

AgentTesla Payload 13 IoCs

resource	yara_rule
behavioral2/memory/856-0-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral2/memory/856-1-0x000000000044CAFE-mapping.dmp	family_agenttesla
behavioral2/memory/856-12-0x000000000044CAFE-mapping.dmp	family_agenttesla
behavioral2/memory/856-11-0x000000000044CAFE-mapping.dmp	family_agenttesla
behavioral2/memory/856-14-0x000000000044CAFE-mapping.dmp	family_agenttesla
behavioral2/memory/856-13-0x000000000044CAFE-mapping.dmp	family_agenttesla
behavioral2/memory/856-15-0x000000000044CAFE-mapping.dmp	family_agenttesla
behavioral2/memory/856-16-0x000000000044CAFE-mapping.dmp	family_agenttesla
behavioral2/memory/856-17-0x000000000044CAFE-mapping.dmp	family_agenttesla
behavioral2/memory/856-18-0x000000000044CAFE-mapping.dmp	family_agenttesla
behavioral2/memory/856-21-0x000000000044CAFE-mapping.dmp	family_agenttesla
behavioral2/memory/856-20-0x000000000044CAFE-mapping.dmp	family_agenttesla
behavioral2/memory/856-19-0x000000000044CAFE-mapping.dmp	family_agenttesla

Disables Task Manager via registry modification
evasion

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	MSBuild.exe

Drops startup file 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SystemSettingsRemoveDevice.url	TT- Swift Copy.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\CpSnJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CpSnJ\\CpSnJ.exe"	MSBuild.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 944 set thread context of 856	944	TT- Swift Copy.exe	79

Program crash 1 IoCs

pid	pid_target	Process	procid_target
632	856	WerFault.exe	79

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
2120	REG.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
856	MSBuild.exe
856	MSBuild.exe
632	WerFault.exe
632	WerFault.exe
632	WerFault.exe
632	WerFault.exe
632	WerFault.exe
632	WerFault.exe
632	WerFault.exe
632	WerFault.exe
632	WerFault.exe
632	WerFault.exe
632	WerFault.exe
632	WerFault.exe
632	WerFault.exe
632	WerFault.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	856	MSBuild.exe
Token: SeRestorePrivilege	632	WerFault.exe
Token: SeBackupPrivilege	632	WerFault.exe
Token: SeDebugPrivilege	632	WerFault.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
944	TT- Swift Copy.exe
944	TT- Swift Copy.exe
944	TT- Swift Copy.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
944	TT- Swift Copy.exe
944	TT- Swift Copy.exe
944	TT- Swift Copy.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 944 wrote to memory of 856	944	TT- Swift Copy.exe	79
PID 944 wrote to memory of 856	944	TT- Swift Copy.exe	79
PID 944 wrote to memory of 856	944	TT- Swift Copy.exe	79
PID 944 wrote to memory of 856	944	TT- Swift Copy.exe	79
PID 944 wrote to memory of 856	944	TT- Swift Copy.exe	79
PID 856 wrote to memory of 2120	856	MSBuild.exe	82
PID 856 wrote to memory of 2120	856	MSBuild.exe	82
PID 856 wrote to memory of 2120	856	MSBuild.exe	82

C:\Users\Admin\AppData\Local\Temp\TT- Swift Copy.exe
"C:\Users\Admin\AppData\Local\Temp\TT- Swift Copy.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:944
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v4.0.30319\\\\MSBuild.exe"
  2⤵
  - Drops file in Drivers directory
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:856
- - C:\Windows\SysWOW64\REG.exe
    REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
    3⤵
    - Modifies registry key
    PID:2120
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 856 -s 1492
    3⤵
    - Program crash
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:632

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/632-10-0x0000000004C40000-0x0000000004C41000-memory.dmp

Download

memory/632-22-0x00000000054F0000-0x00000000054F1000-memory.dmp

Download

memory/856-5-0x0000000005BA0000-0x0000000005BA1000-memory.dmp

Download

memory/856-6-0x0000000005530000-0x0000000005531000-memory.dmp

Download

memory/856-7-0x00000000055E0000-0x00000000055E1000-memory.dmp

Download

memory/856-8-0x00000000060A0000-0x00000000060A1000-memory.dmp

Download

memory/856-2-0x00000000735E0000-0x0000000073CCE000-memory.dmp

Download

memory/856-0-0x0000000000400000-0x0000000000452000-memory.dmp

Download

memory/856-3-0x0000000000400000-0x0000000000401000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads