agenttesla | 320879773263bbe2f56ec72ab36ca0cb654b895c44d99435101a29305b82c866

General

Target
INVOICE 54598.exe
Size 1.6MB
Sample201109-fe2p3kdqm2
SHA256 320879773263bbe2f56ec72ab36ca0cb654b895c44d99435101a29305b82c866
MD5 16fa6d4d8768e3d932f6f61c7be3e540
SHA1 57254887d74d18a08e43887bdd7361eae6bc7a3c
SHA512 27e57df1114fcc401af8da866bd577dc13cf5ac8cc1864a0899364c58ea785faa4deef0f82da5e113bc0ed6eae79c11b72c4a6e88244054099a6a8b9c21954f3
MD5 SHA1 SHA512

Score

10^/10

agenttesla evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.niftylabs.com
Port
587
Username
[email protected]
Password
Bkr@jetta#2489

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/4016-0-0x0000000000720000-0x0000000000772000-memory.dmp	family_agenttesla
behavioral2/memory/4016-1-0x000000000076CCEE-mapping.dmp	family_agenttesla
behavioral2/memory/4016-13-0x000000000076CCEE-mapping.dmp	family_agenttesla
behavioral2/memory/4016-12-0x000000000076CCEE-mapping.dmp	family_agenttesla
behavioral2/memory/4016-14-0x000000000076CCEE-mapping.dmp	family_agenttesla
behavioral2/memory/4016-15-0x000000000076CCEE-mapping.dmp	family_agenttesla
behavioral2/memory/4016-16-0x000000000076CCEE-mapping.dmp	family_agenttesla
behavioral2/memory/4016-17-0x000000000076CCEE-mapping.dmp	family_agenttesla
behavioral2/memory/4016-20-0x000000000076CCEE-mapping.dmp	family_agenttesla
behavioral2/memory/4016-19-0x000000000076CCEE-mapping.dmp	family_agenttesla
behavioral2/memory/4016-18-0x000000000076CCEE-mapping.dmp	family_agenttesla
behavioral2/memory/4016-22-0x000000000076CCEE-mapping.dmp	family_agenttesla
behavioral2/memory/4016-21-0x000000000076CCEE-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\apphelp.url	INVOICE 54598.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 1924 set thread context of 4016	1924	INVOICE 54598.exe	78

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3132	4016	WerFault.exe	78

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
2060	REG.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
4016	MSBuild.exe
4016	MSBuild.exe
3132	WerFault.exe
3132	WerFault.exe
3132	WerFault.exe
3132	WerFault.exe
3132	WerFault.exe
3132	WerFault.exe
3132	WerFault.exe
3132	WerFault.exe
3132	WerFault.exe
3132	WerFault.exe
3132	WerFault.exe
3132	WerFault.exe
3132	WerFault.exe
3132	WerFault.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4016	MSBuild.exe
Token: SeRestorePrivilege	3132	WerFault.exe
Token: SeBackupPrivilege	3132	WerFault.exe
Token: SeDebugPrivilege	3132	WerFault.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
1924	INVOICE 54598.exe
1924	INVOICE 54598.exe
1924	INVOICE 54598.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
1924	INVOICE 54598.exe
1924	INVOICE 54598.exe
1924	INVOICE 54598.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1924 wrote to memory of 4016	1924	INVOICE 54598.exe	78
PID 1924 wrote to memory of 4016	1924	INVOICE 54598.exe	78
PID 1924 wrote to memory of 4016	1924	INVOICE 54598.exe	78
PID 1924 wrote to memory of 4016	1924	INVOICE 54598.exe	78
PID 1924 wrote to memory of 4016	1924	INVOICE 54598.exe	78
PID 4016 wrote to memory of 2060	4016	MSBuild.exe	81
PID 4016 wrote to memory of 2060	4016	MSBuild.exe	81
PID 4016 wrote to memory of 2060	4016	MSBuild.exe	81
PID 4016 wrote to memory of 2360	4016	MSBuild.exe	83
PID 4016 wrote to memory of 2360	4016	MSBuild.exe	83
PID 4016 wrote to memory of 2360	4016	MSBuild.exe	83

C:\Users\Admin\AppData\Local\Temp\INVOICE 54598.exe
"C:\Users\Admin\AppData\Local\Temp\INVOICE 54598.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1924
- 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:4016
- - 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:2060
- - C:\Windows\SysWOW64\netsh.exe
    "netsh" wlan show profile
    3⤵
    PID:2360
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4016 -s 1560
    3⤵
    - Program crash
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3132

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/3132-23-0x00000000049D0000-0x00000000049D1000-memory.dmp

Download

memory/3132-11-0x00000000041A0000-0x00000000041A1000-memory.dmp

Download

memory/4016-6-0x0000000004DA0000-0x0000000004DA1000-memory.dmp

Download

memory/4016-7-0x0000000004D60000-0x0000000004D61000-memory.dmp

Download

memory/4016-8-0x0000000005930000-0x0000000005931000-memory.dmp

Download

memory/4016-5-0x00000000053C0000-0x00000000053C1000-memory.dmp

Download

memory/4016-3-0x0000000000720000-0x0000000000721000-memory.dmp

Download

memory/4016-2-0x0000000073A80000-0x000000007416E000-memory.dmp

Download

memory/4016-0-0x0000000000720000-0x0000000000772000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads