agenttesla | 9329ac7ceda44f47a90f67ef1e12add90fddb97bbf1be96a6e3e6f66a7002187

Analysis

max time kernel
94s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21-09-2024 20:58

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General

Target

bashoo.exe
Size

35KB
MD5

2db9421577d39c8fdeaab542ee35f483
SHA1

346d5db7df5cdbb843e9df60724a55e70a51c018
SHA256

9329ac7ceda44f47a90f67ef1e12add90fddb97bbf1be96a6e3e6f66a7002187
SHA512

7931796900ba0573733d240d5252d15a4957b1c6251ea359fcfb1c8ef11607948210c2484356b831659158d575c0f848a0b6886b6e177a83370b9c6d0c842969
SSDEEP

384:XZirz04kYcm5oRVPUn30CDG1iZMJSalHXeqZhsWIgDWsjxZUtO4f54A:Mi+5uVPUn30gGEZQH5SAXJ4f54A

Score

10^/10

agenttesla discovery keylogger persistence spyware stealer trojan upx

Malware Config

Signatures

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	bashoo.exe

Executes dropped EXE 1 IoCs

pid	Process
2928	system.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3116-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x0008000000023477-7.dat	upx
behavioral2/memory/2928-14-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/3116-15-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/memory/2928-18-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MyApp = "C:\\WINDOWS\\system.exe"	bashoo.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\WINDOWS\system.exe	bashoo.exe

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 2 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	bashoo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	system.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3116	bashoo.exe
2928	system.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3116 wrote to memory of 2928	3116	bashoo.exe	82
PID 3116 wrote to memory of 2928	3116	bashoo.exe	82
PID 3116 wrote to memory of 2928	3116	bashoo.exe	82

C:\Users\Admin\AppData\Local\Temp\bashoo.exe
"C:\Users\Admin\AppData\Local\Temp\bashoo.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3116
- C:\WINDOWS\system.exe
  "C:\WINDOWS\system.exe" 0
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2928

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

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\system.exe

Filesize
35KB

MD5
9e64056a609af6f66db76d1dc17e0675

SHA1
32e900856a8366a4d579b53f00a95edc45637116

SHA256
be945fbfb6a5045a730d35e288cb049e2040cbc8c871a6aebca8bf65672e7a41

SHA512
5a3aa6470df3bcf3cb337505d78240d62d14c551ec3b31d85a655f1dfd18cb9de917f442ce39fe39eacee7442a950a760fbe31fd51700eb26c7726549c4503c1

Download Submit
memory/2928-14-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2928-18-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3116-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3116-15-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads