agenttesla | 186105dca5f36d5109a075a9b4a9eac5114e34377cacc519dcd6f5cf0541c9f3

General

Target

ap48HeATQYHcrwN.exe
Size

437KB
MD5

9b22dc57a731a0a502a43597b27128bf
SHA1

a04e5092ceeb4cef232ca35eb7b1bb10b39ed8d0
SHA256

186105dca5f36d5109a075a9b4a9eac5114e34377cacc519dcd6f5cf0541c9f3
SHA512

e94f3866385ceeaeebfc401d154fc81dfa6f10475df98eee2888269cbc58b7a1560231cf76552239902efbb20de89a9199763595dd95e41b4e58ab60694e09fb

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.priserveinfra.com
Port:
587
Username:
[email protected]
Password:
oppipl121019

Signatures

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

AgentTesla Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4624-124-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/4624-125-0x000000000043762E-mapping.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:

ap48HeATQYHcrwN.exe

description pid process target process

PID 2324 set thread context of 4624 2324 ap48HeATQYHcrwN.exe MSBuild.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

ap48HeATQYHcrwN.exeMSBuild.exe

pid process

2324 ap48HeATQYHcrwN.exe
2324 ap48HeATQYHcrwN.exe
4624 MSBuild.exe
4624 MSBuild.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

ap48HeATQYHcrwN.exeMSBuild.exe

description pid process

Token: SeDebugPrivilege 2324 ap48HeATQYHcrwN.exe
Token: SeDebugPrivilege 4624 MSBuild.exe

description	pid	process	target process
PID 2324 set thread context of 4624	2324	ap48HeATQYHcrwN.exe	MSBuild.exe

pid	process
2324	ap48HeATQYHcrwN.exe
2324	ap48HeATQYHcrwN.exe
4624	MSBuild.exe
4624	MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	2324	ap48HeATQYHcrwN.exe
Token: SeDebugPrivilege	4624	MSBuild.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

ap48HeATQYHcrwN.exe

description	pid	process	target process
PID 2324 wrote to memory of 4624	2324	ap48HeATQYHcrwN.exe	MSBuild.exe
PID 2324 wrote to memory of 4624	2324	ap48HeATQYHcrwN.exe	MSBuild.exe
PID 2324 wrote to memory of 4624	2324	ap48HeATQYHcrwN.exe	MSBuild.exe
PID 2324 wrote to memory of 4624	2324	ap48HeATQYHcrwN.exe	MSBuild.exe
PID 2324 wrote to memory of 4624	2324	ap48HeATQYHcrwN.exe	MSBuild.exe
PID 2324 wrote to memory of 4624	2324	ap48HeATQYHcrwN.exe	MSBuild.exe
PID 2324 wrote to memory of 4624	2324	ap48HeATQYHcrwN.exe	MSBuild.exe
PID 2324 wrote to memory of 4624	2324	ap48HeATQYHcrwN.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\ap48HeATQYHcrwN.exe
"C:\Users\Admin\AppData\Local\Temp\ap48HeATQYHcrwN.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2324

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:4624

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/2324-115-0x00000000004F0000-0x00000000004F1000-memory.dmp

Filesize
4KB

Download
memory/2324-117-0x00000000054C0000-0x00000000054C1000-memory.dmp

Filesize
4KB

Download
memory/2324-118-0x0000000004EF0000-0x0000000004EF1000-memory.dmp

Filesize
4KB

Download
memory/2324-119-0x0000000004E50000-0x0000000004EE2000-memory.dmp

Filesize
584KB

Download
memory/2324-120-0x0000000004F90000-0x0000000004F91000-memory.dmp

Filesize
4KB

Download
memory/2324-121-0x00000000085E0000-0x00000000085E7000-memory.dmp

Filesize
28KB

Download
memory/2324-122-0x0000000008920000-0x0000000008921000-memory.dmp

Filesize
4KB

Download
memory/2324-123-0x0000000008AC0000-0x0000000008B18000-memory.dmp

Filesize
352KB

Download
memory/4624-124-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4624-125-0x000000000043762E-mapping.dmp

Download
memory/4624-130-0x0000000005000000-0x0000000005001000-memory.dmp

Filesize
4KB

Download
memory/4624-131-0x0000000005170000-0x0000000005171000-memory.dmp

Filesize
4KB

Download
memory/4624-132-0x0000000005DC0000-0x0000000005DC1000-memory.dmp

Filesize
4KB

Download
memory/4624-135-0x0000000005001000-0x0000000005002000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads