agenttesla | 1047cf8fbc49544a7b163dd0442f7662460f3cf979fed4f1c35167bdc70577a8

General

Target

Remittance slip 060223.exe
Size

708KB
MD5

426e0fa17ee9518f05ab0ef0227c11c7
SHA1

9eec1531ebe6217f9bd54e585316129dae565d43
SHA256

103a24c03c526ba935708b1e870c75c5e26215c2d3ae87e4f4d91ead58aac960
SHA512

0347fac5f1ad1eb73875069171697cf44a9d4b097de8b4a112c4325c35cad622cb891bd7be4f72a2b28eb517caf1005152feb809259b84e33c3c40463b342157
SSDEEP

12288:3jUwLPEgqD39ZoCSN0wGApK9JWQwVKiBSpMKKM5pxA/VcjmdfE:oY7qz9SCKjG2yc9B+pvu/+jmu

Score

10^/10

agenttesla discovery execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.starmech.net
Port:
587
Username:
[email protected]
Password:
nics123
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Agenttesla family
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
2732	powershell.exe
2856	powershell.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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\BjTxJte = "C:\\Users\\Admin\\AppData\\Roaming\\BjTxJte\\BjTxJte.exe"	RegSvcs.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
4	api.ipify.org
5	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3068 set thread context of 2288	3068	Remittance slip 060223.exe	36

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	Remittance slip 060223.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
2628	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3068	Remittance slip 060223.exe
2856	powershell.exe
2732	powershell.exe
3068	Remittance slip 060223.exe
2288	RegSvcs.exe
2288	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3068	Remittance slip 060223.exe
Token: SeDebugPrivilege	2856	powershell.exe
Token: SeDebugPrivilege	2732	powershell.exe
Token: SeDebugPrivilege	2288	RegSvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2288	RegSvcs.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3068 wrote to memory of 2732	3068	Remittance slip 060223.exe	30
PID 3068 wrote to memory of 2732	3068	Remittance slip 060223.exe	30
PID 3068 wrote to memory of 2732	3068	Remittance slip 060223.exe	30
PID 3068 wrote to memory of 2732	3068	Remittance slip 060223.exe	30
PID 3068 wrote to memory of 2856	3068	Remittance slip 060223.exe	32
PID 3068 wrote to memory of 2856	3068	Remittance slip 060223.exe	32
PID 3068 wrote to memory of 2856	3068	Remittance slip 060223.exe	32
PID 3068 wrote to memory of 2856	3068	Remittance slip 060223.exe	32
PID 3068 wrote to memory of 2628	3068	Remittance slip 060223.exe	33
PID 3068 wrote to memory of 2628	3068	Remittance slip 060223.exe	33
PID 3068 wrote to memory of 2628	3068	Remittance slip 060223.exe	33
PID 3068 wrote to memory of 2628	3068	Remittance slip 060223.exe	33
PID 3068 wrote to memory of 2288	3068	Remittance slip 060223.exe	36
PID 3068 wrote to memory of 2288	3068	Remittance slip 060223.exe	36
PID 3068 wrote to memory of 2288	3068	Remittance slip 060223.exe	36
PID 3068 wrote to memory of 2288	3068	Remittance slip 060223.exe	36
PID 3068 wrote to memory of 2288	3068	Remittance slip 060223.exe	36
PID 3068 wrote to memory of 2288	3068	Remittance slip 060223.exe	36
PID 3068 wrote to memory of 2288	3068	Remittance slip 060223.exe	36
PID 3068 wrote to memory of 2288	3068	Remittance slip 060223.exe	36
PID 3068 wrote to memory of 2288	3068	Remittance slip 060223.exe	36
PID 3068 wrote to memory of 2288	3068	Remittance slip 060223.exe	36
PID 3068 wrote to memory of 2288	3068	Remittance slip 060223.exe	36
PID 3068 wrote to memory of 2288	3068	Remittance slip 060223.exe	36

C:\Users\Admin\AppData\Local\Temp\Remittance slip 060223.exe
"C:\Users\Admin\AppData\Local\Temp\Remittance slip 060223.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3068
- 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\Remittance slip 060223.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2732
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\rLmrceeOOWwn.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2856
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rLmrceeOOWwn" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC561.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2628
- 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
  - Suspicious use of SetWindowsHookEx
  PID:2288

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpC561.tmp

Filesize
1KB

MD5
e04d74c7073042421cd54d464580be60

SHA1
139ddfc424e2cecae89367bfec934bf1ebac2f27

SHA256
86d5c5412bae47b8998b8bba44798b8c4546b5288b99e29dc8db4ab438582ba3

SHA512
7d4bc40f68dfab617fb230973dddef854da02c8c47eeb8b254be2984c031b49cecba8448b83991f3ea34f407dc3f75d890915fca2efd21ff370a718e1001d272

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

Filesize
7KB

MD5
73ab77bc8ea749e39b87d351ac986581

SHA1
7741d1dbf62902a676c98cbe1c5767a02bb5a4a6

SHA256
88486d3288ba5dcb1a3c3003d3754927305a365249677fc2fb3a53ca4b2dff1b

SHA512
40560aa2ab44bbb45a197a0b8ca5fa64aedc9523e6784633d85e5e168370382c35631f52f8f32e6f8eae14e5e990f9482d5e964c715d7034ff8f7c875c4428e6

Download Submit
memory/2288-25-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2288-28-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2288-29-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2288-31-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2288-21-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2288-23-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2288-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2288-19-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/3068-6-0x0000000000530000-0x00000000005B6000-memory.dmp

Filesize
536KB

Download
memory/3068-1-0x0000000001250000-0x0000000001308000-memory.dmp

Filesize
736KB

Download
memory/3068-0-0x000000007491E000-0x000000007491F000-memory.dmp

Filesize
4KB

Download
memory/3068-2-0x0000000074910000-0x0000000074FFE000-memory.dmp

Filesize
6.9MB

Download
memory/3068-3-0x0000000000660000-0x000000000067E000-memory.dmp

Filesize
120KB

Download
memory/3068-5-0x0000000074910000-0x0000000074FFE000-memory.dmp

Filesize
6.9MB

Download
memory/3068-4-0x000000007491E000-0x000000007491F000-memory.dmp

Filesize
4KB

Download
memory/3068-32-0x0000000074910000-0x0000000074FFE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads