agenttesla | 75d01f5228312d1ca33e0388355df6a9d35a501564752842c06e798f74d254a4

Analysis

max time kernel
16s
max time network
16s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
17-09-2024 00:30

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General

Target

tmp3lvrqnsb.exe
Size

847KB
MD5

7f8c69cbcbc9b8b5c778de9e7cc1b6bd
SHA1

f4075ac912c88f5b414828ed20677d852109878f
SHA256

75d01f5228312d1ca33e0388355df6a9d35a501564752842c06e798f74d254a4
SHA512

f9bfda0226945c201d65129d7173df6d5a8acd05e288d485cc4c5950763b6dd40c8b44ad40b685691a9aa00f4cecbf419113eed7ea70a23d3f5982e5b130874b
SSDEEP

24576:WtlRVEAQp+C2sBohoYiDFAjbyION9N1q:WtlRVEDpBoEDyjbynzO

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:
manlikeyou88
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
2392	powershell.exe
2292	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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2972 set thread context of 2984	2972	tmp3lvrqnsb.exe	36

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	tmp3lvrqnsb.exe
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	tmp3lvrqnsb.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
2088	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2972	tmp3lvrqnsb.exe
2972	tmp3lvrqnsb.exe
2984	tmp3lvrqnsb.exe
2984	tmp3lvrqnsb.exe
2392	powershell.exe
2292	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2972	tmp3lvrqnsb.exe
Token: SeDebugPrivilege	2984	tmp3lvrqnsb.exe
Token: SeDebugPrivilege	2392	powershell.exe
Token: SeDebugPrivilege	2292	powershell.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 2972 wrote to memory of 2292	2972	tmp3lvrqnsb.exe	29
PID 2972 wrote to memory of 2292	2972	tmp3lvrqnsb.exe	29
PID 2972 wrote to memory of 2292	2972	tmp3lvrqnsb.exe	29
PID 2972 wrote to memory of 2292	2972	tmp3lvrqnsb.exe	29
PID 2972 wrote to memory of 2392	2972	tmp3lvrqnsb.exe	31
PID 2972 wrote to memory of 2392	2972	tmp3lvrqnsb.exe	31
PID 2972 wrote to memory of 2392	2972	tmp3lvrqnsb.exe	31
PID 2972 wrote to memory of 2392	2972	tmp3lvrqnsb.exe	31
PID 2972 wrote to memory of 2088	2972	tmp3lvrqnsb.exe	32
PID 2972 wrote to memory of 2088	2972	tmp3lvrqnsb.exe	32
PID 2972 wrote to memory of 2088	2972	tmp3lvrqnsb.exe	32
PID 2972 wrote to memory of 2088	2972	tmp3lvrqnsb.exe	32
PID 2972 wrote to memory of 2600	2972	tmp3lvrqnsb.exe	35
PID 2972 wrote to memory of 2600	2972	tmp3lvrqnsb.exe	35
PID 2972 wrote to memory of 2600	2972	tmp3lvrqnsb.exe	35
PID 2972 wrote to memory of 2600	2972	tmp3lvrqnsb.exe	35
PID 2972 wrote to memory of 2600	2972	tmp3lvrqnsb.exe	35
PID 2972 wrote to memory of 2600	2972	tmp3lvrqnsb.exe	35
PID 2972 wrote to memory of 2600	2972	tmp3lvrqnsb.exe	35
PID 2972 wrote to memory of 2984	2972	tmp3lvrqnsb.exe	36
PID 2972 wrote to memory of 2984	2972	tmp3lvrqnsb.exe	36
PID 2972 wrote to memory of 2984	2972	tmp3lvrqnsb.exe	36
PID 2972 wrote to memory of 2984	2972	tmp3lvrqnsb.exe	36
PID 2972 wrote to memory of 2984	2972	tmp3lvrqnsb.exe	36
PID 2972 wrote to memory of 2984	2972	tmp3lvrqnsb.exe	36
PID 2972 wrote to memory of 2984	2972	tmp3lvrqnsb.exe	36
PID 2972 wrote to memory of 2984	2972	tmp3lvrqnsb.exe	36
PID 2972 wrote to memory of 2984	2972	tmp3lvrqnsb.exe	36
PID 2972 wrote to memory of 2984	2972	tmp3lvrqnsb.exe	36
PID 2972 wrote to memory of 2984	2972	tmp3lvrqnsb.exe	36
PID 2972 wrote to memory of 2984	2972	tmp3lvrqnsb.exe	36

C:\Users\Admin\AppData\Local\Temp\tmp3lvrqnsb.exe
"C:\Users\Admin\AppData\Local\Temp\tmp3lvrqnsb.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2972
- 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\tmp3lvrqnsb.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2292
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\IYdiCIPoXRBTxn.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2392
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IYdiCIPoXRBTxn" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC1BA.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2088
- C:\Users\Admin\AppData\Local\Temp\tmp3lvrqnsb.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp3lvrqnsb.exe"
  2⤵
  PID:2600
- C:\Users\Admin\AppData\Local\Temp\tmp3lvrqnsb.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp3lvrqnsb.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2984

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpC1BA.tmp

Filesize
1KB

MD5
2709eacdfdbae6c8ab4ad7c7e115e861

SHA1
497236ae5176a9c414a9a0c8276b89d77f87053d

SHA256
24b006bfbf3ba18eda469270c32be8a78ecf9309dfbe7570b266619db76d0acd

SHA512
05a465636e60ab83fc1d8c76b59dfe932b7dd2855d34a72a1b99ca4c06e8a4fb2f89e67458aa3d4831259dfb70d65daa36ff3b67bd1dc43bead3407cc4b117e3

Download Submit
memory/2972-4-0x0000000000460000-0x000000000046E000-memory.dmp

Filesize
56KB

Download
memory/2972-5-0x000000007472E000-0x000000007472F000-memory.dmp

Filesize
4KB

Download
memory/2972-30-0x0000000074720000-0x0000000074E0E000-memory.dmp

Filesize
6.9MB

Download
memory/2972-0-0x000000007472E000-0x000000007472F000-memory.dmp

Filesize
4KB

Download
memory/2972-1-0x0000000000970000-0x0000000000A4A000-memory.dmp

Filesize
872KB

Download
memory/2972-6-0x0000000074720000-0x0000000074E0E000-memory.dmp

Filesize
6.9MB

Download
memory/2972-7-0x0000000005130000-0x00000000051B2000-memory.dmp

Filesize
520KB

Download
memory/2972-2-0x0000000074720000-0x0000000074E0E000-memory.dmp

Filesize
6.9MB

Download
memory/2972-3-0x00000000044B0000-0x000000000454A000-memory.dmp

Filesize
616KB

Download
memory/2984-28-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2984-29-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2984-27-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2984-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2984-24-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2984-22-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2984-20-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2984-18-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download