agenttesla | 20868c1653dfe702c2192bf09fd0aa2fa7424a341dcc89c4883260a0747c479f

Analysis

max time kernel
95s
max time network
101s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
26-09-2024 05:20

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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
4756	powershell.exe
4984	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-1-5-21-945322488-2060912225-3527527000-1000\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-1-5-21-945322488-2060912225-3527527000-1000\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 3884 set thread context of 2432	3884	autorization Letter.exe	97

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
704	schtasks.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
3884	autorization Letter.exe
3884	autorization Letter.exe
4756	powershell.exe
4984	powershell.exe
3884	autorization Letter.exe
3884	autorization Letter.exe
3884	autorization Letter.exe
3884	autorization Letter.exe
3884	autorization Letter.exe
4984	powershell.exe
3884	autorization Letter.exe
2432	RegSvcs.exe
2432	RegSvcs.exe
4756	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3884	autorization Letter.exe
Token: SeDebugPrivilege	4756	powershell.exe
Token: SeDebugPrivilege	4984	powershell.exe
Token: SeDebugPrivilege	2432	RegSvcs.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3884 wrote to memory of 4756	3884	autorization Letter.exe	89
PID 3884 wrote to memory of 4756	3884	autorization Letter.exe	89
PID 3884 wrote to memory of 4756	3884	autorization Letter.exe	89
PID 3884 wrote to memory of 4984	3884	autorization Letter.exe	91
PID 3884 wrote to memory of 4984	3884	autorization Letter.exe	91
PID 3884 wrote to memory of 4984	3884	autorization Letter.exe	91
PID 3884 wrote to memory of 704	3884	autorization Letter.exe	93
PID 3884 wrote to memory of 704	3884	autorization Letter.exe	93
PID 3884 wrote to memory of 704	3884	autorization Letter.exe	93
PID 3884 wrote to memory of 1776	3884	autorization Letter.exe	95
PID 3884 wrote to memory of 1776	3884	autorization Letter.exe	95
PID 3884 wrote to memory of 1776	3884	autorization Letter.exe	95
PID 3884 wrote to memory of 620	3884	autorization Letter.exe	96
PID 3884 wrote to memory of 620	3884	autorization Letter.exe	96
PID 3884 wrote to memory of 620	3884	autorization Letter.exe	96
PID 3884 wrote to memory of 2432	3884	autorization Letter.exe	97
PID 3884 wrote to memory of 2432	3884	autorization Letter.exe	97
PID 3884 wrote to memory of 2432	3884	autorization Letter.exe	97
PID 3884 wrote to memory of 2432	3884	autorization Letter.exe	97
PID 3884 wrote to memory of 2432	3884	autorization Letter.exe	97
PID 3884 wrote to memory of 2432	3884	autorization Letter.exe	97
PID 3884 wrote to memory of 2432	3884	autorization Letter.exe	97
PID 3884 wrote to memory of 2432	3884	autorization Letter.exe	97

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:3884
- 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:4756
- 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:4984
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tIFjYTCo" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCDDF.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:704
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:1776
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:620
- 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:2432

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
3d086a433708053f9bf9523e1d87a4e8

SHA1
b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

SHA256
6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

SHA512
931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

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

Filesize
18KB

MD5
4b26c03a9ee78c8869683231a7bfd253

SHA1
02e83dab24178fc1e6e91760fcf9436f9daf1314

SHA256
db9fadedfe27d903d36fbe7213d19466061681a3ee71e45abb99698e7d710ebb

SHA512
a1d536cdb636f8b7839d9b6fb882da9f0ff8f59d9391c19709c59842fd14465cf17f744e1e219f8d743239e487434351fa12e5f86f7f2bd76350becfe068bbaf

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0w4lvsjc.1wo.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
1KB

MD5
1546a3d19d79a0ffa8064ba05a535b61

SHA1
59cf87921a9912be0a9a9ee906f62fc7449b00da

SHA256
30709209748257fb6c922ca7ffd8b968ad3d5a9f486c9f6c34b2d4d07de4096c

SHA512
8b5b60dd0372a6b0862e4efc2b0cc4c8b876d8496a0221a9b580de0b4f621de07f39d0bb76e9956c2acb9f2361286bc8c8e98c02f4e76632d05f8c830ca25117

Download Submit
memory/2432-90-0x0000000006790000-0x00000000067E0000-memory.dmp

Filesize
320KB

Download
memory/2432-45-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/3884-4-0x0000000074CD0000-0x0000000075480000-memory.dmp

Filesize
7.7MB

Download
memory/3884-7-0x0000000074CDE000-0x0000000074CDF000-memory.dmp

Filesize
4KB

Download
memory/3884-8-0x0000000074CD0000-0x0000000075480000-memory.dmp

Filesize
7.7MB

Download
memory/3884-9-0x0000000006D10000-0x0000000006D94000-memory.dmp

Filesize
528KB

Download
memory/3884-10-0x00000000093F0000-0x000000000948C000-memory.dmp

Filesize
624KB

Download
memory/3884-0-0x0000000074CDE000-0x0000000074CDF000-memory.dmp

Filesize
4KB

Download
memory/3884-6-0x00000000055E0000-0x00000000055F2000-memory.dmp

Filesize
72KB

Download
memory/3884-5-0x0000000005240000-0x000000000524A000-memory.dmp

Filesize
40KB

Download
memory/3884-3-0x0000000005080000-0x0000000005112000-memory.dmp

Filesize
584KB

Download
memory/3884-48-0x0000000074CD0000-0x0000000075480000-memory.dmp

Filesize
7.7MB

Download
memory/3884-2-0x0000000005630000-0x0000000005BD4000-memory.dmp

Filesize
5.6MB

Download
memory/3884-1-0x0000000000610000-0x00000000006E0000-memory.dmp

Filesize
832KB

Download
memory/4756-15-0x00000000028B0000-0x00000000028E6000-memory.dmp

Filesize
216KB

Download
memory/4756-18-0x0000000005470000-0x0000000005A98000-memory.dmp

Filesize
6.2MB

Download
memory/4756-24-0x0000000005B80000-0x0000000005BE6000-memory.dmp

Filesize
408KB

Download
memory/4756-23-0x0000000005B10000-0x0000000005B76000-memory.dmp

Filesize
408KB

Download
memory/4756-21-0x0000000005200000-0x0000000005222000-memory.dmp

Filesize
136KB

Download
memory/4756-32-0x0000000005BF0000-0x0000000005F44000-memory.dmp

Filesize
3.3MB

Download
memory/4756-16-0x0000000074CD0000-0x0000000075480000-memory.dmp

Filesize
7.7MB

Download
memory/4756-17-0x0000000074CD0000-0x0000000075480000-memory.dmp

Filesize
7.7MB

Download
memory/4756-88-0x0000000074CD0000-0x0000000075480000-memory.dmp

Filesize
7.7MB

Download
memory/4756-76-0x0000000007780000-0x0000000007816000-memory.dmp

Filesize
600KB

Download
memory/4756-19-0x0000000074CD0000-0x0000000075480000-memory.dmp

Filesize
7.7MB

Download
memory/4756-71-0x0000000007140000-0x000000000715E000-memory.dmp

Filesize
120KB

Download
memory/4756-51-0x00000000702E0000-0x000000007032C000-memory.dmp

Filesize
304KB

Download
memory/4756-50-0x0000000007160000-0x0000000007192000-memory.dmp

Filesize
200KB

Download
memory/4756-72-0x00000000071B0000-0x0000000007253000-memory.dmp

Filesize
652KB

Download
memory/4756-79-0x0000000007730000-0x000000000773E000-memory.dmp

Filesize
56KB

Download
memory/4756-74-0x0000000007500000-0x000000000751A000-memory.dmp

Filesize
104KB

Download
memory/4756-75-0x0000000007570000-0x000000000757A000-memory.dmp

Filesize
40KB

Download
memory/4984-73-0x0000000007CA0000-0x000000000831A000-memory.dmp

Filesize
6.5MB

Download
memory/4984-77-0x0000000007850000-0x0000000007861000-memory.dmp

Filesize
68KB

Download
memory/4984-25-0x0000000074CD0000-0x0000000075480000-memory.dmp

Filesize
7.7MB

Download
memory/4984-80-0x0000000007890000-0x00000000078A4000-memory.dmp

Filesize
80KB

Download
memory/4984-81-0x0000000007990000-0x00000000079AA000-memory.dmp

Filesize
104KB

Download
memory/4984-82-0x0000000007970000-0x0000000007978000-memory.dmp

Filesize
32KB

Download
memory/4984-57-0x00000000702E0000-0x000000007032C000-memory.dmp

Filesize
304KB

Download
memory/4984-47-0x0000000006320000-0x000000000633E000-memory.dmp

Filesize
120KB

Download
memory/4984-49-0x00000000068A0000-0x00000000068EC000-memory.dmp

Filesize
304KB

Download
memory/4984-89-0x0000000074CD0000-0x0000000075480000-memory.dmp

Filesize
7.7MB

Download
memory/4984-20-0x0000000074CD0000-0x0000000075480000-memory.dmp

Filesize
7.7MB

Download