agenttesla | ad5d194018074784d3a8ac9aa334d5b0b4c8ec9fe721ba7870ef054e29d4529d

General

Target
Bank Statement_pdf.exe
Size 690KB
Sample200624-498efslc12
SHA256 ad5d194018074784d3a8ac9aa334d5b0b4c8ec9fe721ba7870ef054e29d4529d
MD5 253ec1e59c12626e20cf272bb0bdcf7b
SHA1 b9a820bda10976fc46fcfb67d634194b85a16d76
SHA512 8b3c71b95eab8a6a59128c294b42f1ef54fdefc67a49187f98aeaa501823d8b3fcfeef51e0428be82e62f0febb70aebe87f2f02c64fb18aba3ce676d974d3237
MD5 SHA1 SHA512

Score

10^/10

persistence spyware keylogger trojan stealer agenttesla

Malware Config

Signatures

Adds Run entry 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-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\soja = "C:\\Users\\Admin\\AppData\\Local\\Temp\\soja\\soja.exe"	Bank Statement_pdf.exe

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware

Data from Local System
T1005

Credentials in Files
T1081
AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
616	Bank Statement_pdf.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1260	Bank Statement_pdf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 616 set thread context of 1260	616	Bank Statement_pdf.exe	24

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

resource	yara_rule
behavioral1/memory/1260-0-0x0000000000400000-0x00000000004B1000-memory.dmp	upx
behavioral1/memory/1260-2-0x0000000000400000-0x00000000004B1000-memory.dmp	upx
behavioral1/memory/1260-3-0x0000000000400000-0x00000000004B1000-memory.dmp	upx

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

Data from Local System
T1005

Credentials in Files
T1081

Modifies service 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Modify Existing Service

T1031

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\NapAgent\LocalConfig	netsh.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\napagent\LocalConfig\Enroll\HcsGroups	netsh.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\NapAgent\Shas	netsh.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\NapAgent\Qecs	netsh.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\napagent\LocalConfig\UI	netsh.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
616	Bank Statement_pdf.exe
1260	Bank Statement_pdf.exe
1260	Bank Statement_pdf.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 616 wrote to memory of 1260	616	Bank Statement_pdf.exe	24
PID 616 wrote to memory of 1260	616	Bank Statement_pdf.exe	24
PID 616 wrote to memory of 1260	616	Bank Statement_pdf.exe	24
PID 616 wrote to memory of 1260	616	Bank Statement_pdf.exe	24
PID 1260 wrote to memory of 1520	1260	Bank Statement_pdf.exe	26
PID 1260 wrote to memory of 1520	1260	Bank Statement_pdf.exe	26
PID 1260 wrote to memory of 1520	1260	Bank Statement_pdf.exe	26
PID 1260 wrote to memory of 1520	1260	Bank Statement_pdf.exe	26

C:\Users\Admin\AppData\Local\Temp\Bank Statement_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Bank Statement_pdf.exe"
1⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:616
- C:\Users\Admin\AppData\Local\Temp\Bank Statement_pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Bank Statement_pdf.exe"
  2⤵
  - Adds Run entry to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1260
- - C:\Windows\SysWOW64\netsh.exe
    "netsh" wlan show profile
    3⤵
    - Modifies service
    PID:1520

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/1260-0-0x0000000000400000-0x00000000004B1000-memory.dmp

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memory/1260-2-0x0000000000400000-0x00000000004B1000-memory.dmp

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memory/1260-3-0x0000000000400000-0x00000000004B1000-memory.dmp

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memory/1260-4-0x0000000001D00000-0x0000000001D52000-memory.dmp

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memory/1260-5-0x0000000000262000-0x0000000000263000-memory.dmp

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memory/1260-6-0x00000000002B0000-0x00000000002FC000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads