agenttesla | 99f5fc482f7032ca22c6d3dbfeb0d473de11c448f468d4cdcd2d047fc3138163

General

Target

bank payment advice.exe
Size

464KB
MD5

c9117bac79ce3500c79f9f579c72245a
SHA1

ea23a2da5f5dd0fd72e9243e9765f02a7f237824
SHA256

73b78f2caff5099ed61689ba82eaa2d6dc19bb1fa2d619b9429d5f876a0ecd68
SHA512

eeccb8a5ef8379a26892ead6a746da2855bc443eb28725a857f4c85837f630eb8d014516d0bdf6cce9a348634ffb86da69e204ae0ab55c6680a12bec2e6f4878

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.mytecheng.com
Port:
587
Username:
[email protected]
Password:
Pakistan@321

Signatures

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

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1164-61-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1164-63-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1164-65-0x000000000044763E-mapping.dmp	family_agenttesla
behavioral1/memory/1164-64-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1164-67-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1164-69-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

RegSvcs.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

RegSvcs.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\CpSnJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CpSnJ\\CpSnJ.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

bank payment advice.exe

description pid process target process

PID 1016 set thread context of 1164 1016 bank payment advice.exe RegSvcs.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1828 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

1880 REG.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

bank payment advice.exeRegSvcs.exe

pid process

1016 bank payment advice.exe
1164 RegSvcs.exe
1164 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

bank payment advice.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 1016 bank payment advice.exe
Token: SeDebugPrivilege 1164 RegSvcs.exe

description	pid	process	target process
PID 1016 set thread context of 1164	1016	bank payment advice.exe	RegSvcs.exe

pid	process
1828	schtasks.exe

pid	process
1880	REG.exe

pid	process
1016	bank payment advice.exe
1164	RegSvcs.exe
1164	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1016	bank payment advice.exe
Token: SeDebugPrivilege	1164	RegSvcs.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

bank payment advice.exeRegSvcs.exe

description	pid	process	target process
PID 1016 wrote to memory of 1828	1016	bank payment advice.exe	schtasks.exe
PID 1016 wrote to memory of 1828	1016	bank payment advice.exe	schtasks.exe
PID 1016 wrote to memory of 1828	1016	bank payment advice.exe	schtasks.exe
PID 1016 wrote to memory of 1828	1016	bank payment advice.exe	schtasks.exe
PID 1016 wrote to memory of 1164	1016	bank payment advice.exe	RegSvcs.exe
PID 1016 wrote to memory of 1164	1016	bank payment advice.exe	RegSvcs.exe
PID 1016 wrote to memory of 1164	1016	bank payment advice.exe	RegSvcs.exe
PID 1016 wrote to memory of 1164	1016	bank payment advice.exe	RegSvcs.exe
PID 1016 wrote to memory of 1164	1016	bank payment advice.exe	RegSvcs.exe
PID 1016 wrote to memory of 1164	1016	bank payment advice.exe	RegSvcs.exe
PID 1016 wrote to memory of 1164	1016	bank payment advice.exe	RegSvcs.exe
PID 1016 wrote to memory of 1164	1016	bank payment advice.exe	RegSvcs.exe
PID 1016 wrote to memory of 1164	1016	bank payment advice.exe	RegSvcs.exe
PID 1016 wrote to memory of 1164	1016	bank payment advice.exe	RegSvcs.exe
PID 1016 wrote to memory of 1164	1016	bank payment advice.exe	RegSvcs.exe
PID 1016 wrote to memory of 1164	1016	bank payment advice.exe	RegSvcs.exe
PID 1164 wrote to memory of 1880	1164	RegSvcs.exe	REG.exe
PID 1164 wrote to memory of 1880	1164	RegSvcs.exe	REG.exe
PID 1164 wrote to memory of 1880	1164	RegSvcs.exe	REG.exe
PID 1164 wrote to memory of 1880	1164	RegSvcs.exe	REG.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\bank payment advice.exe
"C:\Users\Admin\AppData\Local\Temp\bank payment advice.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1016

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RSlGhpha" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9D1B.tmp"
2⤵
- Creates scheduled task(s)
PID:1828

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1164

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:1880

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp9D1B.tmp
Filesize
1KB

MD5
b8ab3b56f8c3ceab51b2dd1b5f26cdff

SHA1
9177590857c6e5090f144c4f2bf5a5fa5213c953

SHA256
ea43d8bf665de2b77e0ced6863e283c3bc62ebdb0362856540b591e2ae85b8dd

SHA512
0601524458befa3ec6891a0867d9a7711db9d2ee08ad795cbee09925d89bc78bc3a097275d5bf7b7d54e1e33e0011d5a132bd70ccf2dd7acf8aa9db2d1c8d3c3

Download Submit
memory/1016-55-0x0000000074F50000-0x00000000754FB000-memory.dmp

Filesize
5.7MB

Download
memory/1016-54-0x0000000075AE1000-0x0000000075AE3000-memory.dmp

Filesize
8KB

Download
memory/1164-61-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1164-59-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1164-58-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1164-63-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1164-65-0x000000000044763E-mapping.dmp

Download
memory/1164-64-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1164-67-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1164-69-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1164-71-0x0000000074EE0000-0x000000007548B000-memory.dmp

Filesize
5.7MB

Download
memory/1828-56-0x0000000000000000-mapping.dmp

Download
memory/1880-72-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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