agenttesla | 0533e896717fa4ff365579e940b16d3e0543ccd319f4cee76c9ab71999a669b6

Analysis

max time kernel
130s
max time network
105s
platform
windows10_x64
resource
win10v20201028
submitted
26/03/2021, 15:13

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General

Target
20ba9bdd96824f66bd2ebc613656353b.exe
Size 973KB
Sample210326-ev5eg7d1px
SHA256 0533e896717fa4ff365579e940b16d3e0543ccd319f4cee76c9ab71999a669b6
MD5 20ba9bdd96824f66bd2ebc613656353b
SHA1 5cbc85c3a844531acc0d3cb0eb40105b991acb09
SHA512 c2d1d7c7cd7b012cf48904559a7d1fd6d2b6f5283d1ca547746ff70ed95f9372cf1a62248870dbf064799854df906fd8271736a8f3590037e2d888d2ed82f5d3
MD5 SHA1 SHA512

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
smtpout.secureserver.net
Port
587
Username
[email protected]
Password
password@123

Signatures

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

AgentTesla Payload 2 IoCs

resource	yara_rule
behavioral2/memory/1000-15-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/1000-16-0x000000000043767E-mapping.dmp	family_agenttesla

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\newapp = "C:\\Users\\Admin\\AppData\\Roaming\\newapp\\newapp.exe"	20ba9bdd96824f66bd2ebc613656353b.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 648 set thread context of 1000	648	20ba9bdd96824f66bd2ebc613656353b.exe	81

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

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
3924	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
648	20ba9bdd96824f66bd2ebc613656353b.exe
648	20ba9bdd96824f66bd2ebc613656353b.exe
648	20ba9bdd96824f66bd2ebc613656353b.exe
1000	20ba9bdd96824f66bd2ebc613656353b.exe
1000	20ba9bdd96824f66bd2ebc613656353b.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	648	20ba9bdd96824f66bd2ebc613656353b.exe
Token: SeDebugPrivilege	1000	20ba9bdd96824f66bd2ebc613656353b.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 648 wrote to memory of 3924	648	20ba9bdd96824f66bd2ebc613656353b.exe	78
PID 648 wrote to memory of 3924	648	20ba9bdd96824f66bd2ebc613656353b.exe	78
PID 648 wrote to memory of 3924	648	20ba9bdd96824f66bd2ebc613656353b.exe	78
PID 648 wrote to memory of 416	648	20ba9bdd96824f66bd2ebc613656353b.exe	80
PID 648 wrote to memory of 416	648	20ba9bdd96824f66bd2ebc613656353b.exe	80
PID 648 wrote to memory of 416	648	20ba9bdd96824f66bd2ebc613656353b.exe	80
PID 648 wrote to memory of 1000	648	20ba9bdd96824f66bd2ebc613656353b.exe	81
PID 648 wrote to memory of 1000	648	20ba9bdd96824f66bd2ebc613656353b.exe	81
PID 648 wrote to memory of 1000	648	20ba9bdd96824f66bd2ebc613656353b.exe	81
PID 648 wrote to memory of 1000	648	20ba9bdd96824f66bd2ebc613656353b.exe	81
PID 648 wrote to memory of 1000	648	20ba9bdd96824f66bd2ebc613656353b.exe	81
PID 648 wrote to memory of 1000	648	20ba9bdd96824f66bd2ebc613656353b.exe	81
PID 648 wrote to memory of 1000	648	20ba9bdd96824f66bd2ebc613656353b.exe	81
PID 648 wrote to memory of 1000	648	20ba9bdd96824f66bd2ebc613656353b.exe	81

C:\Users\Admin\AppData\Local\Temp\20ba9bdd96824f66bd2ebc613656353b.exe
"C:\Users\Admin\AppData\Local\Temp\20ba9bdd96824f66bd2ebc613656353b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:648
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bscRcnzoEb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1549.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3924
- C:\Users\Admin\AppData\Local\Temp\20ba9bdd96824f66bd2ebc613656353b.exe
  "C:\Users\Admin\AppData\Local\Temp\20ba9bdd96824f66bd2ebc613656353b.exe"
  2⤵
  PID:416
- C:\Users\Admin\AppData\Local\Temp\20ba9bdd96824f66bd2ebc613656353b.exe
  "C:\Users\Admin\AppData\Local\Temp\20ba9bdd96824f66bd2ebc613656353b.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1000

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/648-11-0x0000000004E10000-0x0000000004E11000-memory.dmp

Download

memory/648-5-0x0000000004E50000-0x0000000004E51000-memory.dmp

Download

memory/648-7-0x0000000004F90000-0x0000000004F91000-memory.dmp

Download

memory/648-8-0x0000000004F10000-0x0000000004F11000-memory.dmp

Download

memory/648-9-0x0000000005180000-0x0000000005181000-memory.dmp

Download

memory/648-10-0x0000000004F20000-0x0000000004F2B000-memory.dmp

Download

memory/648-2-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Download

memory/648-12-0x0000000005BF0000-0x0000000005C56000-memory.dmp

Download

memory/648-3-0x0000000000550000-0x0000000000551000-memory.dmp

Download

memory/648-6-0x00000000053F0000-0x00000000053F1000-memory.dmp

Download

memory/1000-15-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/1000-18-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Download

memory/1000-23-0x0000000005680000-0x0000000005681000-memory.dmp

Download

memory/1000-24-0x0000000006300000-0x0000000006301000-memory.dmp

Download

memory/1000-25-0x0000000006390000-0x0000000006391000-memory.dmp

Download