agenttesla | 3bc98b348217fdba3ff7a6128fc6b2ae45656f268d31065ead8aace44ba83aba

Analysis

max time kernel
104s
max time network
112s
platform
windows10_x64
resource
win10v200722
submitted
12/10/2020, 11:16

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General

Target
3bc98b348217fdba3ff7a6128fc6b2ae45656f268d31065ead8aace44ba83aba.exe
Size 773KB
Sample201012-bh7r7916yn
SHA256 3bc98b348217fdba3ff7a6128fc6b2ae45656f268d31065ead8aace44ba83aba
MD5 f5e67b3051ce5225de87e17db38fc22b
SHA1 4f077ed8f93aed06fb2036c4621dfd53f4ca5b55
SHA512 675cd717c64b469e9942134751762f532f96c9929ac8cf0ea59f1def6436f0e3bf56e1271df8238110a833d5203ab57e7eff44e2520d33e04f6d6232d5eea6de
MD5 SHA1 SHA512

Score

10^/10

keylogger stealer spyware trojan agenttesla

Malware Config

Extracted

Credentials

Protocol
smtp
Host
smtp.dachanq.cc
Port
587
Username
[email protected]
Password
MKNXoqR2

Signatures

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

AgentTesla Payload 2 IoCs

keylogger stealer

resource	yara_rule
behavioral2/memory/3160-13-0x0000000000400000-0x0000000000450000-memory.dmp	agent_tesla
behavioral2/memory/3160-14-0x000000000044A94E-mapping.dmp	agent_tesla

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

Data from Local System
T1005

Credentials in Files
T1081
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

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3816 set thread context of 3160	3816	3bc98b348217fdba3ff7a6128fc6b2ae45656f268d31065ead8aace44ba83aba.exe	77

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task

T1053

pid	Process
1592	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3816	3bc98b348217fdba3ff7a6128fc6b2ae45656f268d31065ead8aace44ba83aba.exe
3160	3bc98b348217fdba3ff7a6128fc6b2ae45656f268d31065ead8aace44ba83aba.exe
3160	3bc98b348217fdba3ff7a6128fc6b2ae45656f268d31065ead8aace44ba83aba.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3816	3bc98b348217fdba3ff7a6128fc6b2ae45656f268d31065ead8aace44ba83aba.exe
Token: SeDebugPrivilege	3160	3bc98b348217fdba3ff7a6128fc6b2ae45656f268d31065ead8aace44ba83aba.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3160	3bc98b348217fdba3ff7a6128fc6b2ae45656f268d31065ead8aace44ba83aba.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3816 wrote to memory of 1592	3816	3bc98b348217fdba3ff7a6128fc6b2ae45656f268d31065ead8aace44ba83aba.exe	75
PID 3816 wrote to memory of 1592	3816	3bc98b348217fdba3ff7a6128fc6b2ae45656f268d31065ead8aace44ba83aba.exe	75
PID 3816 wrote to memory of 1592	3816	3bc98b348217fdba3ff7a6128fc6b2ae45656f268d31065ead8aace44ba83aba.exe	75
PID 3816 wrote to memory of 3160	3816	3bc98b348217fdba3ff7a6128fc6b2ae45656f268d31065ead8aace44ba83aba.exe	77
PID 3816 wrote to memory of 3160	3816	3bc98b348217fdba3ff7a6128fc6b2ae45656f268d31065ead8aace44ba83aba.exe	77
PID 3816 wrote to memory of 3160	3816	3bc98b348217fdba3ff7a6128fc6b2ae45656f268d31065ead8aace44ba83aba.exe	77
PID 3816 wrote to memory of 3160	3816	3bc98b348217fdba3ff7a6128fc6b2ae45656f268d31065ead8aace44ba83aba.exe	77
PID 3816 wrote to memory of 3160	3816	3bc98b348217fdba3ff7a6128fc6b2ae45656f268d31065ead8aace44ba83aba.exe	77
PID 3816 wrote to memory of 3160	3816	3bc98b348217fdba3ff7a6128fc6b2ae45656f268d31065ead8aace44ba83aba.exe	77
PID 3816 wrote to memory of 3160	3816	3bc98b348217fdba3ff7a6128fc6b2ae45656f268d31065ead8aace44ba83aba.exe	77
PID 3816 wrote to memory of 3160	3816	3bc98b348217fdba3ff7a6128fc6b2ae45656f268d31065ead8aace44ba83aba.exe	77
PID 3160 wrote to memory of 1036	3160	3bc98b348217fdba3ff7a6128fc6b2ae45656f268d31065ead8aace44ba83aba.exe	79
PID 3160 wrote to memory of 1036	3160	3bc98b348217fdba3ff7a6128fc6b2ae45656f268d31065ead8aace44ba83aba.exe	79
PID 3160 wrote to memory of 1036	3160	3bc98b348217fdba3ff7a6128fc6b2ae45656f268d31065ead8aace44ba83aba.exe	79

C:\Users\Admin\AppData\Local\Temp\3bc98b348217fdba3ff7a6128fc6b2ae45656f268d31065ead8aace44ba83aba.exe
"C:\Users\Admin\AppData\Local\Temp\3bc98b348217fdba3ff7a6128fc6b2ae45656f268d31065ead8aace44ba83aba.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3816
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SXhTvYNow" /XML "C:\Users\Admin\AppData\Local\Temp\tmp669A.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1592
- C:\Users\Admin\AppData\Local\Temp\3bc98b348217fdba3ff7a6128fc6b2ae45656f268d31065ead8aace44ba83aba.exe
  "C:\Users\Admin\AppData\Local\Temp\3bc98b348217fdba3ff7a6128fc6b2ae45656f268d31065ead8aace44ba83aba.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3160
- - C:\Windows\SysWOW64\netsh.exe
    "netsh" wlan show profile
    3⤵
    PID:1036

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/3160-16-0x0000000073E20000-0x000000007450E000-memory.dmp

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memory/3160-13-0x0000000000400000-0x0000000000450000-memory.dmp

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memory/3160-23-0x00000000063B0000-0x00000000063B1000-memory.dmp

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memory/3160-22-0x0000000005DC0000-0x0000000005DC1000-memory.dmp

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memory/3160-21-0x00000000057C0000-0x00000000057C1000-memory.dmp

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memory/3816-4-0x0000000005B00000-0x0000000005B01000-memory.dmp

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memory/3816-6-0x0000000002F70000-0x0000000002F71000-memory.dmp

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memory/3816-5-0x00000000054F0000-0x00000000054F1000-memory.dmp

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memory/3816-10-0x0000000006000000-0x0000000006076000-memory.dmp

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memory/3816-3-0x0000000005450000-0x0000000005451000-memory.dmp

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memory/3816-0-0x0000000073E20000-0x000000007450E000-memory.dmp

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memory/3816-9-0x000000000A4C0000-0x000000000A551000-memory.dmp

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memory/3816-8-0x0000000008000000-0x0000000009FFF000-memory.dmp

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memory/3816-7-0x0000000005600000-0x0000000005601000-memory.dmp

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memory/3816-1-0x0000000000AF0000-0x0000000000AF1000-memory.dmp

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