agenttesla | 8e29aa00863b1746ba25132f7ecb7bcb869d3a7e647dc8d6d3255491c5ac5212

Analysis

max time kernel
121s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13-09-2024 12:06

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General

Target

PurchaseOrder.exe
Size

934KB
MD5

f7f32729079353000cd97b90aa314cc1
SHA1

21dbddeea2b634263c8fbf0d6178a9751d2467b8
SHA256

8e29aa00863b1746ba25132f7ecb7bcb869d3a7e647dc8d6d3255491c5ac5212
SHA512

2c40c12b81e7c377ddf0a6691ebeedc895dcf02c9211a1563b840de735fab77968565b1d3d0c40cc0b2b583fd4bfa1c69f995fca758ea85f548bf5797b5bf847
SSDEEP

24576:U5dMbYk7zL1hJ5o/C+uOWiw5h6nnjqKoe:U5dkYk/phQ6+hIkjqKoe

Score

10^/10

agenttesla credential_access discovery execution keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.iaa-airferight.com
Port:
587
Username:
[email protected]
Password:
webmaster
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

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
1728	powershell.exe
1664	powershell.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
5	api.ipify.org
4	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2868 set thread context of 2576	2868	PurchaseOrder.exe	34

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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PurchaseOrder.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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
2568	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2576	RegSvcs.exe
2576	RegSvcs.exe
1728	powershell.exe
1664	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2576	RegSvcs.exe
Token: SeDebugPrivilege	1664	powershell.exe
Token: SeDebugPrivilege	1728	powershell.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2868 wrote to memory of 1728	2868	PurchaseOrder.exe	28
PID 2868 wrote to memory of 1728	2868	PurchaseOrder.exe	28
PID 2868 wrote to memory of 1728	2868	PurchaseOrder.exe	28
PID 2868 wrote to memory of 1728	2868	PurchaseOrder.exe	28
PID 2868 wrote to memory of 1728	2868	PurchaseOrder.exe	28
PID 2868 wrote to memory of 1728	2868	PurchaseOrder.exe	28
PID 2868 wrote to memory of 1728	2868	PurchaseOrder.exe	28
PID 2868 wrote to memory of 1664	2868	PurchaseOrder.exe	30
PID 2868 wrote to memory of 1664	2868	PurchaseOrder.exe	30
PID 2868 wrote to memory of 1664	2868	PurchaseOrder.exe	30
PID 2868 wrote to memory of 1664	2868	PurchaseOrder.exe	30
PID 2868 wrote to memory of 1664	2868	PurchaseOrder.exe	30
PID 2868 wrote to memory of 1664	2868	PurchaseOrder.exe	30
PID 2868 wrote to memory of 1664	2868	PurchaseOrder.exe	30
PID 2868 wrote to memory of 2568	2868	PurchaseOrder.exe	31
PID 2868 wrote to memory of 2568	2868	PurchaseOrder.exe	31
PID 2868 wrote to memory of 2568	2868	PurchaseOrder.exe	31
PID 2868 wrote to memory of 2568	2868	PurchaseOrder.exe	31
PID 2868 wrote to memory of 2568	2868	PurchaseOrder.exe	31
PID 2868 wrote to memory of 2568	2868	PurchaseOrder.exe	31
PID 2868 wrote to memory of 2568	2868	PurchaseOrder.exe	31
PID 2868 wrote to memory of 2576	2868	PurchaseOrder.exe	34
PID 2868 wrote to memory of 2576	2868	PurchaseOrder.exe	34
PID 2868 wrote to memory of 2576	2868	PurchaseOrder.exe	34
PID 2868 wrote to memory of 2576	2868	PurchaseOrder.exe	34
PID 2868 wrote to memory of 2576	2868	PurchaseOrder.exe	34
PID 2868 wrote to memory of 2576	2868	PurchaseOrder.exe	34
PID 2868 wrote to memory of 2576	2868	PurchaseOrder.exe	34
PID 2868 wrote to memory of 2576	2868	PurchaseOrder.exe	34
PID 2868 wrote to memory of 2576	2868	PurchaseOrder.exe	34
PID 2868 wrote to memory of 2576	2868	PurchaseOrder.exe	34
PID 2868 wrote to memory of 2576	2868	PurchaseOrder.exe	34
PID 2868 wrote to memory of 2576	2868	PurchaseOrder.exe	34

C:\Users\Admin\AppData\Local\Temp\PurchaseOrder.exe
"C:\Users\Admin\AppData\Local\Temp\PurchaseOrder.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2868
- 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\PurchaseOrder.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1728
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TESAYt.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1664
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TESAYt" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB589.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2568
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2576

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

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB589.tmp

Filesize
1KB

MD5
bb48672c901578a1c72a7b778ad5e369

SHA1
cbff88354d9b6370f6c61e14f3c627932d2ae68a

SHA256
6f67006a0948612224e05af1ddffd511d0ad685c9b4245980faeb604c3b7c388

SHA512
ae33083ce1236ee82eb5c7931c938f16493e3c4396c15ec5cd9ff6ac85da1e6202c707326da3f33dcf8e122323d7be9480a6667a453e471296cf3f6ed1654ff1

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
ddacafd26e933c0b13876ffa6746a993

SHA1
8f96626be98caae7018d45aa4d97648366efcbf7

SHA256
a4b6c6cbf8999f05c222dd0aa1d3b2e8d7fbf53388f48f177ab02c9412985cdc

SHA512
d5ae1fa7c99285a163cedaf7193bfd69e7914089d4a4bebe5841d09e711b967b773c628108ad7d968394af1965120be942846acb9a0ed41850975add694874fe

Download Submit
memory/2576-24-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2576-19-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2576-26-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2576-25-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2576-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2576-21-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2576-17-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2576-15-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/2868-2-0x00000000056D0000-0x0000000005752000-memory.dmp

Filesize
520KB

Download
memory/2868-1-0x0000000000700000-0x0000000000710000-memory.dmp

Filesize
64KB

Download
memory/2868-0-0x0000000000EE0000-0x0000000000FCA000-memory.dmp

Filesize
936KB

Download