agenttesla | 1ec3c886cd082c50a8f309de7277c015d49233865dc746a60cbc671df523367d

General

Target

Invoice_document06242021.exe
Size

1.2MB
MD5

22038021ba9ff2f1b233ce4f4a1ab217
SHA1

a22086e8da15b3dd87e83573fc89da4dbd4d1fcd
SHA256

1ec3c886cd082c50a8f309de7277c015d49233865dc746a60cbc671df523367d
SHA512

aa93db72a9a896069ccb4295069b912f421264858cb42bbc58999be70999dc5283dbf4b69cbebd32d0426c76ac7be5a5a0c49c8095d031e4e85e542d73bd915f

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.vivaldi.net
Port:
587
Username:
elshcap@vivaldi.net
Password:
uiU2mz9aspuHUM3

Signatures

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

AgentTesla Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/640-68-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/640-69-0x00000000004375CE-mapping.dmp	family_agenttesla
behavioral1/memory/640-70-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Invoice_document06242021.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\filename.exe = "C:\\Users\\Admin\\AppData\\Roaming\\filename.exe\\filename.exe.exe"	Invoice_document06242021.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Invoice_document06242021.exe

description pid process target process

PID 368 set thread context of 640 368 Invoice_document06242021.exe Invoice_document06242021.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

1632 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

Invoice_document06242021.exeInvoice_document06242021.exe

pid process

368 Invoice_document06242021.exe
640 Invoice_document06242021.exe
640 Invoice_document06242021.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Invoice_document06242021.exeInvoice_document06242021.exe

description pid process

Token: SeDebugPrivilege 368 Invoice_document06242021.exe
Token: SeDebugPrivilege 640 Invoice_document06242021.exe

description	pid	process	target process
PID 368 set thread context of 640	368	Invoice_document06242021.exe	Invoice_document06242021.exe

pid	process
1632	schtasks.exe

pid	process
368	Invoice_document06242021.exe
640	Invoice_document06242021.exe
640	Invoice_document06242021.exe

description	pid	process
Token: SeDebugPrivilege	368	Invoice_document06242021.exe
Token: SeDebugPrivilege	640	Invoice_document06242021.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

Invoice_document06242021.exe

description	pid	process	target process
PID 368 wrote to memory of 1632	368	Invoice_document06242021.exe	schtasks.exe
PID 368 wrote to memory of 1632	368	Invoice_document06242021.exe	schtasks.exe
PID 368 wrote to memory of 1632	368	Invoice_document06242021.exe	schtasks.exe
PID 368 wrote to memory of 1632	368	Invoice_document06242021.exe	schtasks.exe
PID 368 wrote to memory of 640	368	Invoice_document06242021.exe	Invoice_document06242021.exe
PID 368 wrote to memory of 640	368	Invoice_document06242021.exe	Invoice_document06242021.exe
PID 368 wrote to memory of 640	368	Invoice_document06242021.exe	Invoice_document06242021.exe
PID 368 wrote to memory of 640	368	Invoice_document06242021.exe	Invoice_document06242021.exe
PID 368 wrote to memory of 640	368	Invoice_document06242021.exe	Invoice_document06242021.exe
PID 368 wrote to memory of 640	368	Invoice_document06242021.exe	Invoice_document06242021.exe
PID 368 wrote to memory of 640	368	Invoice_document06242021.exe	Invoice_document06242021.exe
PID 368 wrote to memory of 640	368	Invoice_document06242021.exe	Invoice_document06242021.exe
PID 368 wrote to memory of 640	368	Invoice_document06242021.exe	Invoice_document06242021.exe

C:\Users\Admin\AppData\Local\Temp\Invoice_document06242021.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice_document06242021.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:368

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xESkNZNT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp97AD.tmp"
2⤵
- Creates scheduled task(s)
PID:1632

C:\Users\Admin\AppData\Local\Temp\Invoice_document06242021.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice_document06242021.exe"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:640

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

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp97AD.tmp
MD5
8b8884b40be0788d0eb6212e36f5ce67

SHA1
8cfedca2b8e3e798a53e2859fdb800f9c8e96eb7

SHA256
b0a36886b054dfa0ad0bd80b6f4c8993892a944cd2fe1c6cf07c1c1e656d7ac3

SHA512
6cb477c75d08f7a8ee4a499405ef73c52ac4e493a5221ec5d3c3c064fe3bec43bcbd47888d286f3de18945f37bf46f5887276059d691902698cf8245af35f8ef

Download Submit
memory/368-60-0x0000000001170000-0x0000000001171000-memory.dmp

Filesize
4KB

Download
memory/368-62-0x00000000002A0000-0x00000000002B0000-memory.dmp

Filesize
64KB

Download
memory/368-63-0x0000000004DF0000-0x0000000004DF1000-memory.dmp

Filesize
4KB

Download
memory/368-64-0x00000000054E0000-0x000000000555B000-memory.dmp

Filesize
492KB

Download
memory/368-65-0x0000000000B30000-0x0000000000B7C000-memory.dmp

Filesize
304KB

Download
memory/640-68-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/640-69-0x00000000004375CE-mapping.dmp

Download
memory/640-70-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/640-72-0x0000000000BB0000-0x0000000000BB1000-memory.dmp

Filesize
4KB

Download
memory/1632-66-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads