agenttesla | 73a586d7ca79fec396b175728166d48322e002cf6b9b4b2aabda668378b38304

General

Target

1GodZQSdFlq3u6C.exe
Size

416KB
MD5

412321287fef0b7a10f378d6fc3f3ccd
SHA1

99e67585c0374ee54dfb9ffffddf4945f73f1b4f
SHA256

73a586d7ca79fec396b175728166d48322e002cf6b9b4b2aabda668378b38304
SHA512

02c2e4fa8a06ca69f72d0a6855acf6d47d26512be15c3bf4633c2698b00e9c06ea277640a4c35e218d6540e8fb8d9706533512884522c12e7986a5dfd53976cd

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.lahaciendamontericogrande.com.pe
Port:
587
Username:
eduardo@lahaciendamontericogrande.com.pe
Password:
e$$

Signatures

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

AgentTesla Payload 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3416-124-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/3416-125-0x000000000043765E-mapping.dmp	family_agenttesla
behavioral2/memory/3416-130-0x00000000057A0000-0x0000000005C9E000-memory.dmp	family_agenttesla
behavioral2/memory/3416-135-0x00000000057A0000-0x0000000005C9E000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

MSBuild.exe

description ioc process

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

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

MSBuild.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\NXLun = "C:\\Users\\Admin\\AppData\\Roaming\\NXLun\\NXLun.exe"	MSBuild.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

1GodZQSdFlq3u6C.exe

description pid process target process

PID 1420 set thread context of 3416 1420 1GodZQSdFlq3u6C.exe MSBuild.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

1GodZQSdFlq3u6C.exeMSBuild.exe

pid process

1420 1GodZQSdFlq3u6C.exe
1420 1GodZQSdFlq3u6C.exe
3416 MSBuild.exe
3416 MSBuild.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

1GodZQSdFlq3u6C.exeMSBuild.exe

description pid process

Token: SeDebugPrivilege 1420 1GodZQSdFlq3u6C.exe
Token: SeDebugPrivilege 3416 MSBuild.exe

description	pid	process	target process
PID 1420 set thread context of 3416	1420	1GodZQSdFlq3u6C.exe	MSBuild.exe

pid	process
1420	1GodZQSdFlq3u6C.exe
1420	1GodZQSdFlq3u6C.exe
3416	MSBuild.exe
3416	MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	1420	1GodZQSdFlq3u6C.exe
Token: SeDebugPrivilege	3416	MSBuild.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

1GodZQSdFlq3u6C.exe

description	pid	process	target process
PID 1420 wrote to memory of 3416	1420	1GodZQSdFlq3u6C.exe	MSBuild.exe
PID 1420 wrote to memory of 3416	1420	1GodZQSdFlq3u6C.exe	MSBuild.exe
PID 1420 wrote to memory of 3416	1420	1GodZQSdFlq3u6C.exe	MSBuild.exe
PID 1420 wrote to memory of 3416	1420	1GodZQSdFlq3u6C.exe	MSBuild.exe
PID 1420 wrote to memory of 3416	1420	1GodZQSdFlq3u6C.exe	MSBuild.exe
PID 1420 wrote to memory of 3416	1420	1GodZQSdFlq3u6C.exe	MSBuild.exe
PID 1420 wrote to memory of 3416	1420	1GodZQSdFlq3u6C.exe	MSBuild.exe
PID 1420 wrote to memory of 3416	1420	1GodZQSdFlq3u6C.exe	MSBuild.exe

outlook_office_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\1GodZQSdFlq3u6C.exe
"C:\Users\Admin\AppData\Local\Temp\1GodZQSdFlq3u6C.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1420

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
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3416

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/1420-115-0x0000000000330000-0x0000000000331000-memory.dmp

Filesize
4KB

Download
memory/1420-117-0x00000000052E0000-0x00000000052E1000-memory.dmp

Filesize
4KB

Download
memory/1420-118-0x0000000004D20000-0x0000000004D21000-memory.dmp

Filesize
4KB

Download
memory/1420-119-0x0000000004C80000-0x0000000004D12000-memory.dmp

Filesize
584KB

Download
memory/1420-120-0x0000000004D10000-0x0000000004D11000-memory.dmp

Filesize
4KB

Download
memory/1420-121-0x00000000052D0000-0x00000000052D7000-memory.dmp

Filesize
28KB

Download
memory/1420-122-0x0000000008750000-0x0000000008751000-memory.dmp

Filesize
4KB

Download
memory/1420-123-0x00000000088F0000-0x0000000008948000-memory.dmp

Filesize
352KB

Download
memory/3416-124-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3416-125-0x000000000043765E-mapping.dmp

Download
memory/3416-130-0x00000000057A0000-0x0000000005C9E000-memory.dmp

Filesize
5.0MB

Download
memory/3416-131-0x0000000005C60000-0x0000000005C61000-memory.dmp

Filesize
4KB

Download
memory/3416-132-0x0000000006500000-0x0000000006501000-memory.dmp

Filesize
4KB

Download
memory/3416-135-0x00000000057A0000-0x0000000005C9E000-memory.dmp

Filesize
5.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads