agenttesla | 20868c1653dfe702c2192bf09fd0aa2fa7424a341dcc89c4883260a0747c479f

Analysis

max time kernel
97s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27-09-2024 01:06

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General

Target

autorization Letter.exe
Size

821KB
MD5

457f6cb01c6f3f7922ac201f70111ae5
SHA1

934e5433fc83af812db461e3e7748c311e19b1bc
SHA256

ca471400001374bddf5e6ff03db7889cf53bd516fe64209faee8b894b454c3c5
SHA512

2403c0ab282e085b54ab5689fbae2328cf16d19bdec2edb24e32ad6bab79bdf2aba26aa52a48b44f9f573e390636a1401c7f7b30104eda131d4bec9776d06a9b
SSDEEP

24576:4nIY7owVZppDU/4p2v213ZYip6rhrCWKjMA:4t7o6Zp9L2v2TYXrhrCWkMA

Score

10^/10

agenttesla discovery execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.unitechautomations.com
Port:
587
Username:
[email protected]
Password:
Unitech@123
Email To:
[email protected]

Signatures

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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
228	powershell.exe
1820	powershell.exe

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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	autorization Letter.exe

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\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\GUIVTme = "C:\\Users\\Admin\\AppData\\Roaming\\GUIVTme\\GUIVTme.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3564 set thread context of 3628	3564	autorization Letter.exe	94

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 5 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	autorization Letter.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
3992	schtasks.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
3564	autorization Letter.exe
3564	autorization Letter.exe
228	powershell.exe
1820	powershell.exe
3564	autorization Letter.exe
3564	autorization Letter.exe
3564	autorization Letter.exe
3564	autorization Letter.exe
3628	RegSvcs.exe
3628	RegSvcs.exe
228	powershell.exe
1820	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3564	autorization Letter.exe
Token: SeDebugPrivilege	228	powershell.exe
Token: SeDebugPrivilege	1820	powershell.exe
Token: SeDebugPrivilege	3628	RegSvcs.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 3564 wrote to memory of 228	3564	autorization Letter.exe	87
PID 3564 wrote to memory of 228	3564	autorization Letter.exe	87
PID 3564 wrote to memory of 228	3564	autorization Letter.exe	87
PID 3564 wrote to memory of 1820	3564	autorization Letter.exe	89
PID 3564 wrote to memory of 1820	3564	autorization Letter.exe	89
PID 3564 wrote to memory of 1820	3564	autorization Letter.exe	89
PID 3564 wrote to memory of 3992	3564	autorization Letter.exe	91
PID 3564 wrote to memory of 3992	3564	autorization Letter.exe	91
PID 3564 wrote to memory of 3992	3564	autorization Letter.exe	91
PID 3564 wrote to memory of 1344	3564	autorization Letter.exe	93
PID 3564 wrote to memory of 1344	3564	autorization Letter.exe	93
PID 3564 wrote to memory of 1344	3564	autorization Letter.exe	93
PID 3564 wrote to memory of 3628	3564	autorization Letter.exe	94
PID 3564 wrote to memory of 3628	3564	autorization Letter.exe	94
PID 3564 wrote to memory of 3628	3564	autorization Letter.exe	94
PID 3564 wrote to memory of 3628	3564	autorization Letter.exe	94
PID 3564 wrote to memory of 3628	3564	autorization Letter.exe	94
PID 3564 wrote to memory of 3628	3564	autorization Letter.exe	94
PID 3564 wrote to memory of 3628	3564	autorization Letter.exe	94
PID 3564 wrote to memory of 3628	3564	autorization Letter.exe	94

C:\Users\Admin\AppData\Local\Temp\autorization Letter.exe
"C:\Users\Admin\AppData\Local\Temp\autorization Letter.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3564
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\autorization Letter.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:228
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\tIFjYTCo.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1820
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tIFjYTCo" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDD02.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3992
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:1344
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3628

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

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:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
2541802dfe47d02f8c75636aa39a2326

SHA1
2e08255d47f783761f63e681f7554347fc6106a4

SHA256
5f15a34e2685b65fbd6b7cd41103ef4436e0c9c436479961cd7101e70e7902c6

SHA512
5cd3598da916418c8b7295dc537e9af6c0cfd4ff5711a90bd0f143bac0790c2a0f21bb0d940465f6700a1522a437e611f1cd30936bfe5def102b81996d4838a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xkbm40o1.vjn.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpDD02.tmp

Filesize
1KB

MD5
f3b928454f52fd0595cba9aaa35f6b58

SHA1
955a9238a0c4ac5e60120849ce5e7ec5c15b732f

SHA256
aaa876f6e17da9e32c4e123744741202fd054ab45274325b802e8e8db57573f7

SHA512
4891ca9f224ee8d04c79d6868cae370419ba742e9aa1b9f7c860cb5d26ad752e889ce68913e3731cbd529f7dbcee554cb239ec5bdc5d6b80ee94b05399c50ec0

Download Submit
memory/228-15-0x00000000027C0000-0x00000000027F6000-memory.dmp

Filesize
216KB

Download
memory/228-24-0x0000000005A80000-0x0000000005AE6000-memory.dmp

Filesize
408KB

Download
memory/228-85-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/228-47-0x00000000060C0000-0x00000000060DE000-memory.dmp

Filesize
120KB

Download
memory/228-79-0x0000000007620000-0x000000000762E000-memory.dmp

Filesize
56KB

Download
memory/228-78-0x00000000075F0000-0x0000000007601000-memory.dmp

Filesize
68KB

Download
memory/228-76-0x0000000007670000-0x0000000007706000-memory.dmp

Filesize
600KB

Download
memory/228-75-0x0000000007460000-0x000000000746A000-memory.dmp

Filesize
40KB

Download
memory/228-16-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/228-17-0x0000000005270000-0x0000000005898000-memory.dmp

Filesize
6.2MB

Download
memory/228-18-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/228-74-0x00000000073F0000-0x000000000740A000-memory.dmp

Filesize
104KB

Download
memory/228-73-0x0000000007A30000-0x00000000080AA000-memory.dmp

Filesize
6.5MB

Download
memory/228-72-0x00000000072D0000-0x0000000007373000-memory.dmp

Filesize
652KB

Download
memory/228-23-0x0000000005A10000-0x0000000005A76000-memory.dmp

Filesize
408KB

Download
memory/228-70-0x00000000072B0000-0x00000000072CE000-memory.dmp

Filesize
120KB

Download
memory/228-22-0x0000000005200000-0x0000000005222000-memory.dmp

Filesize
136KB

Download
memory/228-50-0x0000000006670000-0x00000000066A2000-memory.dmp

Filesize
200KB

Download
memory/228-51-0x000000006FAD0000-0x000000006FB1C000-memory.dmp

Filesize
304KB

Download
memory/228-49-0x0000000006520000-0x000000000656C000-memory.dmp

Filesize
304KB

Download
memory/1820-19-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/1820-81-0x0000000007B60000-0x0000000007B7A000-memory.dmp

Filesize
104KB

Download
memory/1820-90-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/1820-44-0x0000000006070000-0x00000000063C4000-memory.dmp

Filesize
3.3MB

Download
memory/1820-82-0x0000000007B40000-0x0000000007B48000-memory.dmp

Filesize
32KB

Download
memory/1820-80-0x0000000007A60000-0x0000000007A74000-memory.dmp

Filesize
80KB

Download
memory/1820-52-0x000000006FAD0000-0x000000006FB1C000-memory.dmp

Filesize
304KB

Download
memory/1820-20-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/1820-21-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/3564-4-0x0000000004AB0000-0x0000000004ABA000-memory.dmp

Filesize
40KB

Download
memory/3564-48-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/3564-0-0x000000007459E000-0x000000007459F000-memory.dmp

Filesize
4KB

Download
memory/3564-10-0x0000000008DF0000-0x0000000008E8C000-memory.dmp

Filesize
624KB

Download
memory/3564-9-0x0000000006750000-0x00000000067D4000-memory.dmp

Filesize
528KB

Download
memory/3564-8-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/3564-5-0x0000000074590000-0x0000000074D40000-memory.dmp

Filesize
7.7MB

Download
memory/3564-7-0x000000007459E000-0x000000007459F000-memory.dmp

Filesize
4KB

Download
memory/3564-2-0x0000000005000000-0x00000000055A4000-memory.dmp

Filesize
5.6MB

Download
memory/3564-6-0x0000000004D70000-0x0000000004D82000-memory.dmp

Filesize
72KB

Download
memory/3564-3-0x0000000004AF0000-0x0000000004B82000-memory.dmp

Filesize
584KB

Download
memory/3564-1-0x0000000000020000-0x00000000000F0000-memory.dmp

Filesize
832KB

Download
memory/3628-45-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/3628-89-0x0000000006340000-0x0000000006390000-memory.dmp

Filesize
320KB

Download