agenttesla | 3a0f23dfec606d232d09eb53631b01747e57987e09133fa6efbe3f9394a6e4d0

General

Target

Ref_50102_607UU.exe
Size

823KB
MD5

2821589513c6dad441459f93bf319e63
SHA1

0830bda9d8c4324dadef074ab53dd388f8f68d06
SHA256

3a0f23dfec606d232d09eb53631b01747e57987e09133fa6efbe3f9394a6e4d0
SHA512

6c2a37638e489c26c35d6cd65aa9a178ee34d69d6f36cea13040a4d8970eb8e644e6c4edbc54e7ce733aafe78aa11a3dc5a3eeba50c56073f128c6dbe8aa09a9
SSDEEP

12288:J6PpN6C39UD4981ekRIvwWzrfbGUEb67yTDaWJwkl6ZzSrhVROTKmEPpBkR:DCv9oe8WfTVE4yKmwizkEPm

Score

10^/10

agenttesla discovery execution keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.libreriagandhi.cl
Port:
21
Username:
[email protected]
Password:
$yxZKP=c)$k#

Signatures

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

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
3016	powershell.exe
3020	powershell.exe

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 3 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

Credentials from Web Browsers
T1555.003

Looks up external IP address via web service 1 IoCs

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

flow	ioc
4	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2712 set thread context of 2704	2712	Ref_50102_607UU.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	Ref_50102_607UU.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Ref_50102_607UU.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
2828	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3020	powershell.exe
2704	Ref_50102_607UU.exe
3016	powershell.exe
2704	Ref_50102_607UU.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2704	Ref_50102_607UU.exe
Token: SeDebugPrivilege	3020	powershell.exe
Token: SeDebugPrivilege	3016	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2712 wrote to memory of 3020	2712	Ref_50102_607UU.exe	31
PID 2712 wrote to memory of 3020	2712	Ref_50102_607UU.exe	31
PID 2712 wrote to memory of 3020	2712	Ref_50102_607UU.exe	31
PID 2712 wrote to memory of 3020	2712	Ref_50102_607UU.exe	31
PID 2712 wrote to memory of 3016	2712	Ref_50102_607UU.exe	33
PID 2712 wrote to memory of 3016	2712	Ref_50102_607UU.exe	33
PID 2712 wrote to memory of 3016	2712	Ref_50102_607UU.exe	33
PID 2712 wrote to memory of 3016	2712	Ref_50102_607UU.exe	33
PID 2712 wrote to memory of 2828	2712	Ref_50102_607UU.exe	34
PID 2712 wrote to memory of 2828	2712	Ref_50102_607UU.exe	34
PID 2712 wrote to memory of 2828	2712	Ref_50102_607UU.exe	34
PID 2712 wrote to memory of 2828	2712	Ref_50102_607UU.exe	34
PID 2712 wrote to memory of 2704	2712	Ref_50102_607UU.exe	37
PID 2712 wrote to memory of 2704	2712	Ref_50102_607UU.exe	37
PID 2712 wrote to memory of 2704	2712	Ref_50102_607UU.exe	37
PID 2712 wrote to memory of 2704	2712	Ref_50102_607UU.exe	37
PID 2712 wrote to memory of 2704	2712	Ref_50102_607UU.exe	37
PID 2712 wrote to memory of 2704	2712	Ref_50102_607UU.exe	37
PID 2712 wrote to memory of 2704	2712	Ref_50102_607UU.exe	37
PID 2712 wrote to memory of 2704	2712	Ref_50102_607UU.exe	37
PID 2712 wrote to memory of 2704	2712	Ref_50102_607UU.exe	37

C:\Users\Admin\AppData\Local\Temp\Ref_50102_607UU.exe
"C:\Users\Admin\AppData\Local\Temp\Ref_50102_607UU.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2712
- 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\Ref_50102_607UU.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3020
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\wvQCFzzEN.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3016
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wvQCFzzEN" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3C36.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2828
- C:\Users\Admin\AppData\Local\Temp\Ref_50102_607UU.exe
  "C:\Users\Admin\AppData\Local\Temp\Ref_50102_607UU.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2704

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

2

T1552

Credentials In Files

2

T1552.001

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp3C36.tmp

Filesize
1KB

MD5
61b16d0dfcae897981003b1c7a3e7ed6

SHA1
316985a6e84518f5cd5630650c8faeedf0017f52

SHA256
478260274abae40ff23e8c9f4c633222e961ddae241afaef99f64029f5163e8e

SHA512
1611102954b3a66fde9cfd3cfaab4cdb0b909434e8af4a50f85743b2b46555a4b70f4cb13f05ec9e71d91f5cfee279b75f0da2a3f115ac0f983b6bf914e1f368

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\PZGR1DBTC3PDTLU4V0C0.temp

Filesize
7KB

MD5
b8cfb644cfed2496ce23ec147997eae3

SHA1
9c1cedeec2fb1ffa45fd51ae1668512ceb711df6

SHA256
a1f3840f25af5de6d62d7a3f05e2a389a38300b1619a80de133bfb2140f60537

SHA512
b328e9fdcffeb908c4c7fe8f80c5de96c5b0b9c6ef3f9bab07c882213e8a54f54809e75f54cbefac85e2ac3dcb21401f18358f1bd95bf37d87bcd54fd4feb3d5

Download Submit
memory/2704-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2704-29-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2704-19-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2704-21-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2704-23-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2704-25-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2704-28-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2704-31-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2712-6-0x0000000005000000-0x0000000005084000-memory.dmp

Filesize
528KB

Download
memory/2712-1-0x0000000000CA0000-0x0000000000D70000-memory.dmp

Filesize
832KB

Download
memory/2712-0-0x0000000074CAE000-0x0000000074CAF000-memory.dmp

Filesize
4KB

Download
memory/2712-2-0x0000000074CA0000-0x000000007538E000-memory.dmp

Filesize
6.9MB

Download
memory/2712-3-0x0000000000450000-0x0000000000468000-memory.dmp

Filesize
96KB

Download
memory/2712-5-0x0000000074CA0000-0x000000007538E000-memory.dmp

Filesize
6.9MB

Download
memory/2712-4-0x0000000074CAE000-0x0000000074CAF000-memory.dmp

Filesize
4KB

Download
memory/2712-32-0x0000000074CA0000-0x000000007538E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads