agenttesla | 3c78f01d7f27410f7897b7367112b162816a19930d90ccba32f4043d40c4223f

Analysis

max time kernel
44s
max time network
30s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
15/04/2023, 08:47

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General

Target

tmp.exe
Size

1.7MB
MD5

9315baa2d29e3202b3f14da5b927d329
SHA1

8caa2fe421dec35ebc1bc3f5da31f0dedb6a4ddf
SHA256

3c78f01d7f27410f7897b7367112b162816a19930d90ccba32f4043d40c4223f
SHA512

14c7fafb725151ed28d44bc7f571d1bff7d3b5fafcfe205996da408dccf72538f066e740f59651fb1b9ad8f999d09f9374f020745b599aacefbe54406c0e6740
SSDEEP

24576:2ZL20LiZ2VGym3Hxe/K/3xHOMHLP0JqwVniwhgDifkkFV0p79tDa:M20LikyPCII

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
qbkcioyfoxstxqax
Email To:
[email protected]

Signatures

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe

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-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Windows\CurrentVersion\Run\Iaygb = "\"C:\\Users\\Admin\\AppData\\Roaming\\Twtrcwhcst\\Iaygb.exe\""	tmp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1108 set thread context of 1196	1108	tmp.exe	35

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

System Information Discovery
T1082

Gathers network information 2 TTPs 2 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command-Line Interface

T1059

pid	Process
484	ipconfig.exe
568	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1376	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1108	tmp.exe
Token: SeDebugPrivilege	1376	powershell.exe
Token: SeDebugPrivilege	1196	aspnet_compiler.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1196	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 1108 wrote to memory of 1832	1108	tmp.exe	27
PID 1108 wrote to memory of 1832	1108	tmp.exe	27
PID 1108 wrote to memory of 1832	1108	tmp.exe	27
PID 1108 wrote to memory of 1832	1108	tmp.exe	27
PID 1832 wrote to memory of 484	1832	cmd.exe	29
PID 1832 wrote to memory of 484	1832	cmd.exe	29
PID 1832 wrote to memory of 484	1832	cmd.exe	29
PID 1832 wrote to memory of 484	1832	cmd.exe	29
PID 1108 wrote to memory of 1376	1108	tmp.exe	30
PID 1108 wrote to memory of 1376	1108	tmp.exe	30
PID 1108 wrote to memory of 1376	1108	tmp.exe	30
PID 1108 wrote to memory of 1376	1108	tmp.exe	30
PID 1108 wrote to memory of 636	1108	tmp.exe	32
PID 1108 wrote to memory of 636	1108	tmp.exe	32
PID 1108 wrote to memory of 636	1108	tmp.exe	32
PID 1108 wrote to memory of 636	1108	tmp.exe	32
PID 636 wrote to memory of 568	636	cmd.exe	34
PID 636 wrote to memory of 568	636	cmd.exe	34
PID 636 wrote to memory of 568	636	cmd.exe	34
PID 636 wrote to memory of 568	636	cmd.exe	34
PID 1108 wrote to memory of 1196	1108	tmp.exe	35
PID 1108 wrote to memory of 1196	1108	tmp.exe	35
PID 1108 wrote to memory of 1196	1108	tmp.exe	35
PID 1108 wrote to memory of 1196	1108	tmp.exe	35
PID 1108 wrote to memory of 1196	1108	tmp.exe	35
PID 1108 wrote to memory of 1196	1108	tmp.exe	35
PID 1108 wrote to memory of 1196	1108	tmp.exe	35
PID 1108 wrote to memory of 1196	1108	tmp.exe	35
PID 1108 wrote to memory of 1196	1108	tmp.exe	35

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	aspnet_compiler.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1108
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c ipconfig /release
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1832
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /release
    3⤵
    - Gathers network information
    PID:484
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1376
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c ipconfig /renew
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:636
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /renew
    3⤵
    - Gathers network information
    PID:568
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:1196

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Command-Line Interface

T1059

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1108-63-0x0000000000560000-0x00000000005A0000-memory.dmp

Filesize
256KB

Download
memory/1108-55-0x0000000004BB0000-0x0000000004CF8000-memory.dmp

Filesize
1.3MB

Download
memory/1108-56-0x0000000000530000-0x0000000000556000-memory.dmp

Filesize
152KB

Download
memory/1108-57-0x0000000000E70000-0x0000000000F02000-memory.dmp

Filesize
584KB

Download
memory/1108-58-0x0000000000560000-0x00000000005A0000-memory.dmp

Filesize
256KB

Download
memory/1108-54-0x0000000001310000-0x00000000014D4000-memory.dmp

Filesize
1.8MB

Download
memory/1196-65-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1196-66-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1196-67-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1196-68-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1196-70-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1196-69-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1196-72-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1196-74-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1196-75-0x0000000000A20000-0x0000000000A60000-memory.dmp

Filesize
256KB

Download
memory/1196-76-0x0000000000A20000-0x0000000000A60000-memory.dmp

Filesize
256KB

Download
memory/1376-62-0x00000000026C0000-0x0000000002700000-memory.dmp

Filesize
256KB

Download
memory/1376-61-0x00000000026C0000-0x0000000002700000-memory.dmp

Filesize
256KB

Download