agenttesla | 5b4afa4cfcce54475328d7f8b52bbedf094e14be9d9b06f5a1822e70a5aa2a6d

General

Target

Shipping documents BL, CI & PL.pdf.exe
Size

811KB
MD5

a66520a932198c68fc0df0423e2c046b
SHA1

d49acc9ad7e386a48d83d0bd334294b4168e21fb
SHA256

40f9a446728e079ce7f1b7b8cd6a6f2ff82e4fb22d209ae9576f178612d35369
SHA512

543ae2fa9923a599d55f0ec74f4eb2dd724209e83a5cb285fe19d40655ed8901c810013c6ba593cf55a7626cc120fdf5815a1eaa9e61ec071b2190f0b4f55f32
SSDEEP

24576:qD0tM85tbNJjldeYiYHkOtw0BH2Hmpp68BMQaV6/778:qD0tM85DJjl/iW1tpBFpp6Ha78

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-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\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-1-5-21-2718105630-359604950-2820636825-1000\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/5068-8-0x0000000000400000-0x00000000004D5000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5068 set thread context of 3940	5068	Shipping documents BL, CI & PL.pdf.exe	82

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5068-0-0x0000000000400000-0x00000000004D5000-memory.dmp	upx
behavioral2/memory/5068-8-0x0000000000400000-0x00000000004D5000-memory.dmp	upx

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2796	5068	WerFault.exe	81

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	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Shipping documents BL, CI & PL.pdf.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
5068	Shipping documents BL, CI & PL.pdf.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3940	RegSvcs.exe
3940	RegSvcs.exe
3940	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
5068	Shipping documents BL, CI & PL.pdf.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3940	RegSvcs.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5068 wrote to memory of 3940	5068	Shipping documents BL, CI & PL.pdf.exe	82
PID 5068 wrote to memory of 3940	5068	Shipping documents BL, CI & PL.pdf.exe	82
PID 5068 wrote to memory of 3940	5068	Shipping documents BL, CI & PL.pdf.exe	82
PID 5068 wrote to memory of 3940	5068	Shipping documents BL, CI & PL.pdf.exe	82

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\Shipping documents BL, CI & PL.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Shipping documents BL, CI & PL.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:5068
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Users\Admin\AppData\Local\Temp\Shipping documents BL, CI & PL.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:3940
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5068 -s 744
  2⤵
  - Program crash
  PID:2796

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 5068 -ip 5068
1⤵
PID:2912

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

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/3940-10-0x0000000005F80000-0x0000000005F98000-memory.dmp

Filesize
96KB

Download
memory/3940-11-0x0000000006700000-0x0000000006766000-memory.dmp

Filesize
408KB

Download
memory/3940-4-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3940-5-0x0000000073B7E000-0x0000000073B7F000-memory.dmp

Filesize
4KB

Download
memory/3940-6-0x0000000005FE0000-0x0000000006584000-memory.dmp

Filesize
5.6MB

Download
memory/3940-7-0x0000000073B70000-0x0000000074320000-memory.dmp

Filesize
7.7MB

Download
memory/3940-18-0x0000000073B70000-0x0000000074320000-memory.dmp

Filesize
7.7MB

Download
memory/3940-17-0x0000000073B7E000-0x0000000073B7F000-memory.dmp

Filesize
4KB

Download
memory/3940-16-0x0000000073B70000-0x0000000074320000-memory.dmp

Filesize
7.7MB

Download
memory/3940-9-0x0000000005920000-0x00000000059BC000-memory.dmp

Filesize
624KB

Download
memory/3940-13-0x0000000006AF0000-0x0000000006B40000-memory.dmp

Filesize
320KB

Download
memory/3940-14-0x0000000006C20000-0x0000000006CB2000-memory.dmp

Filesize
584KB

Download
memory/3940-15-0x0000000006C00000-0x0000000006C0A000-memory.dmp

Filesize
40KB

Download
memory/5068-0-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/5068-8-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/5068-3-0x0000000004080000-0x0000000004280000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads