agenttesla | 6fe16b374a594b460bdd5bde3282b2e845b48757650fdce9acc4823d1a4fccc9

General

Target

Invoice1000711119.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-1-5-21-2392887640-1187051047-2909758433-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\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-1-5-21-2392887640-1187051047-2909758433-1000\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
behavioral2/memory/4876-6-0x0000000000400000-0x00000000004C1000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4876 set thread context of 3924	4876	Invoice1000711119.pdf.exe	84

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4876-0-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral2/memory/4876-6-0x0000000000400000-0x00000000004C1000-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	Invoice1000711119.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3924	RegSvcs.exe
3924	RegSvcs.exe
3924	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4876	Invoice1000711119.pdf.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3924	RegSvcs.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4876 wrote to memory of 3924	4876	Invoice1000711119.pdf.exe	84
PID 4876 wrote to memory of 3924	4876	Invoice1000711119.pdf.exe	84
PID 4876 wrote to memory of 3924	4876	Invoice1000711119.pdf.exe	84
PID 4876 wrote to memory of 3924	4876	Invoice1000711119.pdf.exe	84

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\Invoice1000711119.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice1000711119.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4876
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Users\Admin\AppData\Local\Temp\Invoice1000711119.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:3924

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/3924-11-0x0000000005DA0000-0x0000000005DB8000-memory.dmp

Filesize
96KB

Download
memory/3924-14-0x0000000006A40000-0x0000000006A90000-memory.dmp

Filesize
320KB

Download
memory/3924-4-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3924-19-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/3924-18-0x000000007486E000-0x000000007486F000-memory.dmp

Filesize
4KB

Download
memory/3924-8-0x0000000005DD0000-0x0000000006374000-memory.dmp

Filesize
5.6MB

Download
memory/3924-17-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/3924-9-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/3924-7-0x000000007486E000-0x000000007486F000-memory.dmp

Filesize
4KB

Download
memory/3924-12-0x0000000006630000-0x0000000006696000-memory.dmp

Filesize
408KB

Download
memory/3924-10-0x00000000058C0000-0x000000000595C000-memory.dmp

Filesize
624KB

Download
memory/3924-15-0x0000000006B70000-0x0000000006C02000-memory.dmp

Filesize
584KB

Download
memory/3924-16-0x0000000006B60000-0x0000000006B6A000-memory.dmp

Filesize
40KB

Download
memory/4876-3-0x0000000004350000-0x0000000004750000-memory.dmp

Filesize
4.0MB

Download
memory/4876-0-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4876-6-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads