agenttesla | 8bb52d0be263f9a7841a7a7537f0ac85fe5fe4b5bcc87d94663dce56ebad90dd

General

Target

PO-3500036071.exe
Size

766KB
MD5

08de4a78faebb0c78f0b5e7eb8ff7ba9
SHA1

0fc42cffd7cad9b33c8deb3f5bb690486ea3794b
SHA256

8bb52d0be263f9a7841a7a7537f0ac85fe5fe4b5bcc87d94663dce56ebad90dd
SHA512

94af88f97cc70132714fa1c7b805e66105d1567e5bf60e318e1dceab65a6546371e0596bfcde270eab5517df7d06807c87cd8366082bbac2d595b2b938390d41
SSDEEP

12288:LBbDijRwxhRq9eCv+OJsVhoh/oROEZLvwA8B89/9JSmfsDhCr3z4fn2:LBbDc0C9er2sVTU8LIB8XJSW24r30

Score

10^/10

agenttesla credential_access discovery execution keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.iaa-airferight.com
Port:
587
Username:
[email protected]
Password:
Asaprocky11
Email To:
[email protected]

Signatures

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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2368	powershell.exe
2808	powershell.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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 stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
2	api.ipify.org
3	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2676 set thread context of 1576	2676	PO-3500036071.exe	37

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 5 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO-3500036071.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO-3500036071.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2592	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1576	PO-3500036071.exe
1576	PO-3500036071.exe
2808	powershell.exe
2368	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1576	PO-3500036071.exe
Token: SeDebugPrivilege	2368	powershell.exe
Token: SeDebugPrivilege	2808	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1576	PO-3500036071.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2676 wrote to memory of 2368	2676	PO-3500036071.exe	31
PID 2676 wrote to memory of 2368	2676	PO-3500036071.exe	31
PID 2676 wrote to memory of 2368	2676	PO-3500036071.exe	31
PID 2676 wrote to memory of 2368	2676	PO-3500036071.exe	31
PID 2676 wrote to memory of 2808	2676	PO-3500036071.exe	33
PID 2676 wrote to memory of 2808	2676	PO-3500036071.exe	33
PID 2676 wrote to memory of 2808	2676	PO-3500036071.exe	33
PID 2676 wrote to memory of 2808	2676	PO-3500036071.exe	33
PID 2676 wrote to memory of 2592	2676	PO-3500036071.exe	34
PID 2676 wrote to memory of 2592	2676	PO-3500036071.exe	34
PID 2676 wrote to memory of 2592	2676	PO-3500036071.exe	34
PID 2676 wrote to memory of 2592	2676	PO-3500036071.exe	34
PID 2676 wrote to memory of 1576	2676	PO-3500036071.exe	37
PID 2676 wrote to memory of 1576	2676	PO-3500036071.exe	37
PID 2676 wrote to memory of 1576	2676	PO-3500036071.exe	37
PID 2676 wrote to memory of 1576	2676	PO-3500036071.exe	37
PID 2676 wrote to memory of 1576	2676	PO-3500036071.exe	37
PID 2676 wrote to memory of 1576	2676	PO-3500036071.exe	37
PID 2676 wrote to memory of 1576	2676	PO-3500036071.exe	37
PID 2676 wrote to memory of 1576	2676	PO-3500036071.exe	37
PID 2676 wrote to memory of 1576	2676	PO-3500036071.exe	37

C:\Users\Admin\AppData\Local\Temp\PO-3500036071.exe
"C:\Users\Admin\AppData\Local\Temp\PO-3500036071.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2676
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\PO-3500036071.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2368
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\fdcTmYOb.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2808
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fdcTmYOb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp16AC.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2592
- C:\Users\Admin\AppData\Local\Temp\PO-3500036071.exe
  "C:\Users\Admin\AppData\Local\Temp\PO-3500036071.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1576

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

4

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp16AC.tmp

Filesize
1KB

MD5
7a0bb151a5895ca808d1b2b49005f169

SHA1
b6c3aacc0f92e129edaa2eba385f1675aa70055d

SHA256
20a0ecfea51c7ab13af556a8c41cafa2ce7882135270568620a7cf9283d22a0a

SHA512
1532da7a6d1522fbd0002dd669c489f4ffc437392fbff9cf5f72ab58ae738a0094e238e6c6c126a0b01fceefcc9f1bd23d8263cd92366c03285fe541cccb8d2a

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\IR6MLVJ9Q16GS99A0GBZ.temp

Filesize
7KB

MD5
7e8c8f4604f99f7d4256fc10ee5d760f

SHA1
48b710b83a0d076ffe5e96813178145d4668baec

SHA256
debcdffa29fe932d6d49900d2f9b09bf502ceaddd132284d912ccc3149ec72d2

SHA512
bb12956eba4f485b3feae41c722ae0075fd7152b7cebcb869dcf424b80abb5ecfa06aa6be6d784772262098faf57695e65aeff69b483626d5f9df6244c78d3b9

Download Submit
memory/1576-30-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1576-26-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1576-20-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1576-22-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1576-24-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1576-33-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/1576-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1576-29-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2676-1-0x0000000001250000-0x0000000001316000-memory.dmp

Filesize
792KB

Download
memory/2676-2-0x0000000073F20000-0x000000007460E000-memory.dmp

Filesize
6.9MB

Download
memory/2676-0-0x0000000073F2E000-0x0000000073F2F000-memory.dmp

Filesize
4KB

Download
memory/2676-7-0x0000000005060000-0x00000000050E2000-memory.dmp

Filesize
520KB

Download
memory/2676-32-0x0000000073F20000-0x000000007460E000-memory.dmp

Filesize
6.9MB

Download
memory/2676-3-0x0000000004A60000-0x0000000004B00000-memory.dmp

Filesize
640KB

Download
memory/2676-6-0x0000000073F20000-0x000000007460E000-memory.dmp

Filesize
6.9MB

Download
memory/2676-5-0x0000000073F2E000-0x0000000073F2F000-memory.dmp

Filesize
4KB

Download
memory/2676-4-0x0000000000490000-0x00000000004A0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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