agenttesla | 804d083d79760fedd410c64cad608b4496e34a3d7c3979d25258f1796bf308df

Analysis

max time kernel
139s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231130-en
resource tags

arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
submitted
08-12-2023 02:16

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General

Target

KEIBOJS_000000242301_pdf.exe
Size

12KB
MD5

993da48540a2412e8db984b790944f34
SHA1

f4c946466fd439ebedd8c045909674e76f765f29
SHA256

b50565bf09e5dacbab8707a725376464874b24e86f38e977c4a45de1049c9c62
SHA512

8788077de9a8fd932e11bb11581ee7b1ee3040b930408f641449f29d271ca1b1769497f1c07148873c1ab3e2eeda652fcafe26eef8f9b2f41c672206b216f1f9
SSDEEP

192:fdQ8+pGrmjALBBhaqFYw55bGTzK5jX92PxcZ:fO8YKmjSxFv5JQzKJX9r

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.jaazgroup.com
Port:
587
Username:
[email protected]
Password:
cincin/123
Email To:
[email protected]

Signatures

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

KEIBOJS_000000242301_pdf.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Xteqxrqlntx = "C:\\Users\\Admin\\AppData\\Roaming\\Xteqxrqlntx.exe"	KEIBOJS_000000242301_pdf.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

KEIBOJS_000000242301_pdf.exe

description pid process target process

PID 1484 set thread context of 2476 1484 KEIBOJS_000000242301_pdf.exe aspnet_compiler.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4448 2476 WerFault.exe aspnet_compiler.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

aspnet_compiler.exe

pid process

2476 aspnet_compiler.exe
2476 aspnet_compiler.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

KEIBOJS_000000242301_pdf.exeaspnet_compiler.exe

description pid process

Token: SeDebugPrivilege 1484 KEIBOJS_000000242301_pdf.exe
Token: SeDebugPrivilege 2476 aspnet_compiler.exe

description	pid	process	target process
PID 1484 set thread context of 2476	1484	KEIBOJS_000000242301_pdf.exe	aspnet_compiler.exe

pid	pid_target	process	target process
4448	2476	WerFault.exe	aspnet_compiler.exe

pid	process
2476	aspnet_compiler.exe
2476	aspnet_compiler.exe

description	pid	process
Token: SeDebugPrivilege	1484	KEIBOJS_000000242301_pdf.exe
Token: SeDebugPrivilege	2476	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

KEIBOJS_000000242301_pdf.exe

description	pid	process	target process
PID 1484 wrote to memory of 2476	1484	KEIBOJS_000000242301_pdf.exe	aspnet_compiler.exe
PID 1484 wrote to memory of 2476	1484	KEIBOJS_000000242301_pdf.exe	aspnet_compiler.exe
PID 1484 wrote to memory of 2476	1484	KEIBOJS_000000242301_pdf.exe	aspnet_compiler.exe
PID 1484 wrote to memory of 2476	1484	KEIBOJS_000000242301_pdf.exe	aspnet_compiler.exe
PID 1484 wrote to memory of 2476	1484	KEIBOJS_000000242301_pdf.exe	aspnet_compiler.exe
PID 1484 wrote to memory of 2476	1484	KEIBOJS_000000242301_pdf.exe	aspnet_compiler.exe
PID 1484 wrote to memory of 2476	1484	KEIBOJS_000000242301_pdf.exe	aspnet_compiler.exe
PID 1484 wrote to memory of 2476	1484	KEIBOJS_000000242301_pdf.exe	aspnet_compiler.exe

C:\Users\Admin\AppData\Local\Temp\KEIBOJS_000000242301_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\KEIBOJS_000000242301_pdf.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1484

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2476

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2476 -s 1380
3⤵
- Program crash
PID:4448

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2476 -ip 2476
1⤵
PID:1008

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1484-8-0x0000000004EE0000-0x0000000004EF0000-memory.dmp

Filesize
64KB

Download
memory/1484-6-0x0000000006360000-0x00000000063AC000-memory.dmp

Filesize
304KB

Download
memory/1484-2-0x0000000004EE0000-0x0000000004EF0000-memory.dmp

Filesize
64KB

Download
memory/1484-3-0x00000000061F0000-0x000000000624A000-memory.dmp

Filesize
360KB

Download
memory/1484-0-0x0000000000580000-0x0000000000588000-memory.dmp

Filesize
32KB

Download
memory/1484-5-0x0000000006320000-0x0000000006360000-memory.dmp

Filesize
256KB

Download
memory/1484-1-0x0000000074560000-0x0000000074D10000-memory.dmp

Filesize
7.7MB

Download
memory/1484-7-0x0000000074560000-0x0000000074D10000-memory.dmp

Filesize
7.7MB

Download
memory/1484-4-0x00000000062C0000-0x0000000006302000-memory.dmp

Filesize
264KB

Download
memory/1484-9-0x0000000006AE0000-0x0000000007084000-memory.dmp

Filesize
5.6MB

Download
memory/1484-14-0x0000000074560000-0x0000000074D10000-memory.dmp

Filesize
7.7MB

Download
memory/2476-13-0x0000000074560000-0x0000000074D10000-memory.dmp

Filesize
7.7MB

Download
memory/2476-11-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2476-15-0x0000000005190000-0x00000000051A0000-memory.dmp

Filesize
64KB

Download
memory/2476-16-0x00000000053B0000-0x0000000005416000-memory.dmp

Filesize
408KB

Download
memory/2476-17-0x0000000074560000-0x0000000074D10000-memory.dmp

Filesize
7.7MB

Download