agenttesla | 941402f57a96debb7dd383b23396f2af8294bc070ef10250bdccbd2b148e0813

General

Target

oc_202486545346576879879856879876756875246.exe
Size

1.1MB
MD5

ef3b33eda19bdf6cc936b97f7e582f1d
SHA1

2f67db5fb6220c97ade8c9a016e0553af766efe3
SHA256

6d7383506176b2d66904efea5dfee58a70ad683ee01d9bf6a49066a92ab81cf6
SHA512

975c729679891c2552d9f444a6f68f80ca122c6476599efe1b257791695647577c7b003146ef5dd457ead393d5da42b74949a6aadb514d24847d5e4bce1924e3
SSDEEP

24576:0RmJkcoQricOIQxiZY1iaae3Ut4xK9+UfLWYG6uwiQizOVEC0ZL:RJZoQrbTFZY1iaaYQ409XmZwnizOVa

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot1749457201:AAGWIY2QPzrHZIumAIUsWjyRAEWcJrauccY/sendDocument

Signatures

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

AgentTesla payload 3 IoCs

resource	yara_rule
behavioral1/memory/2360-18-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2360-16-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2360-14-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	RegSvcs.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\xapp.vbs	xapp.exe

Executes dropped EXE 1 IoCs

pid	Process
2304	xapp.exe

Loads dropped DLL 1 IoCs

pid	Process
2092	oc_202486545346576879879856879876756875246.exe

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

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x0007000000016f45-8.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2304 set thread context of 2360	2304	xapp.exe	31

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 3 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	oc_202486545346576879879856879876756875246.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xapp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2360	RegSvcs.exe
2360	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2304	xapp.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2360	RegSvcs.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2092	oc_202486545346576879879856879876756875246.exe
2092	oc_202486545346576879879856879876756875246.exe
2304	xapp.exe
2304	xapp.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
2092	oc_202486545346576879879856879876756875246.exe
2092	oc_202486545346576879879856879876756875246.exe
2304	xapp.exe
2304	xapp.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2360	RegSvcs.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2092 wrote to memory of 2304	2092	oc_202486545346576879879856879876756875246.exe	30
PID 2092 wrote to memory of 2304	2092	oc_202486545346576879879856879876756875246.exe	30
PID 2092 wrote to memory of 2304	2092	oc_202486545346576879879856879876756875246.exe	30
PID 2092 wrote to memory of 2304	2092	oc_202486545346576879879856879876756875246.exe	30
PID 2304 wrote to memory of 2360	2304	xapp.exe	31
PID 2304 wrote to memory of 2360	2304	xapp.exe	31
PID 2304 wrote to memory of 2360	2304	xapp.exe	31
PID 2304 wrote to memory of 2360	2304	xapp.exe	31
PID 2304 wrote to memory of 2360	2304	xapp.exe	31
PID 2304 wrote to memory of 2360	2304	xapp.exe	31
PID 2304 wrote to memory of 2360	2304	xapp.exe	31
PID 2304 wrote to memory of 2360	2304	xapp.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\oc_202486545346576879879856879876756875246.exe
"C:\Users\Admin\AppData\Local\Temp\oc_202486545346576879879856879876756875246.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2092
- C:\Users\Admin\AppData\Local\zero\xapp.exe
  "C:\Users\Admin\AppData\Local\Temp\oc_202486545346576879879856879876756875246.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2304
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\oc_202486545346576879879856879876756875246.exe"
    3⤵
    - Drops file in Drivers directory
    - Accesses Microsoft Outlook profiles
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - outlook_office_path
    - outlook_win_path
    PID:2360

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

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

C:\Users\Admin\AppData\Local\zero\xapp.exe

Filesize
1.1MB

MD5
ef3b33eda19bdf6cc936b97f7e582f1d

SHA1
2f67db5fb6220c97ade8c9a016e0553af766efe3

SHA256
6d7383506176b2d66904efea5dfee58a70ad683ee01d9bf6a49066a92ab81cf6

SHA512
975c729679891c2552d9f444a6f68f80ca122c6476599efe1b257791695647577c7b003146ef5dd457ead393d5da42b74949a6aadb514d24847d5e4bce1924e3

Download Submit
memory/2092-2-0x0000000003E90000-0x0000000004290000-memory.dmp

Filesize
4.0MB

Download
memory/2304-12-0x0000000003CE0000-0x00000000040E0000-memory.dmp

Filesize
4.0MB

Download
memory/2360-18-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2360-16-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2360-19-0x0000000073C1E000-0x0000000073C1F000-memory.dmp

Filesize
4KB

Download
memory/2360-14-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2360-20-0x0000000073C10000-0x00000000742FE000-memory.dmp

Filesize
6.9MB

Download
memory/2360-21-0x0000000073C1E000-0x0000000073C1F000-memory.dmp

Filesize
4KB

Download
memory/2360-22-0x0000000073C10000-0x00000000742FE000-memory.dmp

Filesize
6.9MB

Download

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