agenttesla | 838053d3c2a1423831cad1dc9b8ca3f036328c05d2cb5c81fbb18dda832aad54

General

Target

DBG1475766.pdf.scr.exe
Size

666KB
MD5

ceed99d84eed3e759728b9eeea0be0c7
SHA1

54084910a2c7ca660b644dece24e04130fa4d227
SHA256

838053d3c2a1423831cad1dc9b8ca3f036328c05d2cb5c81fbb18dda832aad54
SHA512

7af4117132a1fac74288e0b09a8c49413ad51c6732b493527c8c1462c3c21956cbf8827aae3b7ede27215e28b304682ab5269f8479169f7e07f9dbb5df590838
SSDEEP

12288:XGD8U5frL49pJE2e0ij/btr6YoJ3dk5mYBoD9Qah3irjC9i72lMW:m8U5fg9fE/0ijhrZojksBQqirjCkEMW

Score

10^/10

agenttesla credential_access discovery execution keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.alitextile.com
Port:
587
Username:
[email protected]
Password:
Myname@321
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 1 IoCs

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

execution

PowerShell

T1059.001

pid	Process
1256	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 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 3 IoCs

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

flow	ioc
4	api.ipify.org
5	api.ipify.org
6	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2912 set thread context of 2428	2912	DBG1475766.pdf.scr.exe	34

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 4 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	DBG1475766.pdf.scr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DBG1475766.pdf.scr.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
2408	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2428	DBG1475766.pdf.scr.exe
2428	DBG1475766.pdf.scr.exe
1256	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2428	DBG1475766.pdf.scr.exe
Token: SeDebugPrivilege	1256	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2428	DBG1475766.pdf.scr.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2912 wrote to memory of 1256	2912	DBG1475766.pdf.scr.exe	30
PID 2912 wrote to memory of 1256	2912	DBG1475766.pdf.scr.exe	30
PID 2912 wrote to memory of 1256	2912	DBG1475766.pdf.scr.exe	30
PID 2912 wrote to memory of 1256	2912	DBG1475766.pdf.scr.exe	30
PID 2912 wrote to memory of 2408	2912	DBG1475766.pdf.scr.exe	31
PID 2912 wrote to memory of 2408	2912	DBG1475766.pdf.scr.exe	31
PID 2912 wrote to memory of 2408	2912	DBG1475766.pdf.scr.exe	31
PID 2912 wrote to memory of 2408	2912	DBG1475766.pdf.scr.exe	31
PID 2912 wrote to memory of 2428	2912	DBG1475766.pdf.scr.exe	34
PID 2912 wrote to memory of 2428	2912	DBG1475766.pdf.scr.exe	34
PID 2912 wrote to memory of 2428	2912	DBG1475766.pdf.scr.exe	34
PID 2912 wrote to memory of 2428	2912	DBG1475766.pdf.scr.exe	34
PID 2912 wrote to memory of 2428	2912	DBG1475766.pdf.scr.exe	34
PID 2912 wrote to memory of 2428	2912	DBG1475766.pdf.scr.exe	34
PID 2912 wrote to memory of 2428	2912	DBG1475766.pdf.scr.exe	34
PID 2912 wrote to memory of 2428	2912	DBG1475766.pdf.scr.exe	34
PID 2912 wrote to memory of 2428	2912	DBG1475766.pdf.scr.exe	34

C:\Users\Admin\AppData\Local\Temp\DBG1475766.pdf.scr.exe
"C:\Users\Admin\AppData\Local\Temp\DBG1475766.pdf.scr.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2912
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\uZmdtYZy.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1256
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uZmdtYZy" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD24D.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2408
- C:\Users\Admin\AppData\Local\Temp\DBG1475766.pdf.scr.exe
  "C:\Users\Admin\AppData\Local\Temp\DBG1475766.pdf.scr.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2428

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

3

T1552

Credentials In Files

2

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

3

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpD24D.tmp

Filesize
1KB

MD5
a4cb015e27a0d7eef5449d4bb2a90d1b

SHA1
788bb5306bbf9969665fecba7e1a70efd758d232

SHA256
0d079e1fafebafcb6e50b20ac202c67dd895ba898940b5e0b7ed6a4a943ad47d

SHA512
d9c7963f4e121a66d971aaebb20dd349445ff047c33ec96a0026c864444d20c319006c01971c1bf71cc5597f98ffbab7ce616b015c65b04b924b42feb282f10c

Download Submit
memory/2428-22-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2428-25-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2428-18-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2428-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2428-16-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2428-21-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2428-14-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2428-12-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2912-1-0x0000000000040000-0x00000000000EE000-memory.dmp

Filesize
696KB

Download
memory/2912-5-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/2912-24-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/2912-0-0x00000000743FE000-0x00000000743FF000-memory.dmp

Filesize
4KB

Download
memory/2912-2-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/2912-6-0x0000000005CE0000-0x0000000005D64000-memory.dmp

Filesize
528KB

Download
memory/2912-4-0x00000000743FE000-0x00000000743FF000-memory.dmp

Filesize
4KB

Download
memory/2912-3-0x0000000000430000-0x0000000000440000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads