agenttesla | 6fe16b374a594b460bdd5bde3282b2e845b48757650fdce9acc4823d1a4fccc9

General

Target

Invoice 1000_711119.pdf.exe
Size

806KB
MD5

8a3c0b5a4d9d28bd6965e18cb36d53d2
SHA1

35d1333301d0449c9ca7895f20173d7787193d3b
SHA256

6fe16b374a594b460bdd5bde3282b2e845b48757650fdce9acc4823d1a4fccc9
SHA512

a858d6ed006aebd6aad1b5f53b8998b8f64eab13ac7d476a80fe7a4beb10d71c33d907c6d808f9ff25f50c33606fe6ed32dbce14ab18569d36433f2cd63a51ee
SSDEEP

24576:VD0tM85tbNJjldeYiYP2u0hs8Pl/ROxPcXTICiJhg:VD0tM85DJjl/iYas8N/chOEhg

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence spyware stealer trojan upx

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.palumalimited.com
Port:
587
Username:
[email protected]
Password:
85h!UAfvL2AE
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\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

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\yGbzOMp = "C:\\Users\\Admin\\AppData\\Roaming\\yGbzOMp\\yGbzOMp.exe"	RegSvcs.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/2152-10-0x0000000000400000-0x00000000004C1000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2152 set thread context of 2688	2152	Invoice 1000_711119.pdf.exe	31

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2152-0-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral1/memory/2152-10-0x0000000000400000-0x00000000004C1000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Invoice 1000_711119.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2688	RegSvcs.exe
2688	RegSvcs.exe
2688	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2152	Invoice 1000_711119.pdf.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2688	RegSvcs.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2152 wrote to memory of 2688	2152	Invoice 1000_711119.pdf.exe	31
PID 2152 wrote to memory of 2688	2152	Invoice 1000_711119.pdf.exe	31
PID 2152 wrote to memory of 2688	2152	Invoice 1000_711119.pdf.exe	31
PID 2152 wrote to memory of 2688	2152	Invoice 1000_711119.pdf.exe	31
PID 2152 wrote to memory of 2688	2152	Invoice 1000_711119.pdf.exe	31
PID 2152 wrote to memory of 2688	2152	Invoice 1000_711119.pdf.exe	31
PID 2152 wrote to memory of 2688	2152	Invoice 1000_711119.pdf.exe	31
PID 2152 wrote to memory of 2688	2152	Invoice 1000_711119.pdf.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\Invoice 1000_711119.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice 1000_711119.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2152
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Users\Admin\AppData\Local\Temp\Invoice 1000_711119.pdf.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2688

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/2152-0-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2152-3-0x00000000035B0000-0x00000000039B0000-memory.dmp

Filesize
4.0MB

Download
memory/2152-10-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2688-4-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2688-6-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2688-8-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2688-11-0x00000000739BE000-0x00000000739BF000-memory.dmp

Filesize
4KB

Download
memory/2688-12-0x00000000739B0000-0x000000007409E000-memory.dmp

Filesize
6.9MB

Download
memory/2688-14-0x00000000739B0000-0x000000007409E000-memory.dmp

Filesize
6.9MB

Download
memory/2688-15-0x00000000739BE000-0x00000000739BF000-memory.dmp

Filesize
4KB

Download
memory/2688-16-0x00000000739B0000-0x000000007409E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads