agenttesla | 18d273f276cb2c9d1a3cded2d775b20cb5eb68ed232b6f126225f0ba642c6fed

General

Target

Invoice.exe
Size

822KB
MD5

df0a67f2a0c162c5a5dee0a8fcd8ab22
SHA1

07981693f5b38fa99a88aca0e13ba5b6022b1465
SHA256

e62255f98543e0bb1abf017af13fd483e1382158021b7edde65fa55c1ad290cf
SHA512

b62ea9a4710dfc855cfd47f2c0cb8787c9ea6b1159387431d1cc70b5989dd59086aaadd62e42fea9b21d28834b6ece20dc1715245762d026e48e315544529f75
SSDEEP

12288:zPqnHvjNIrpf9rN/mc/CQw5PXdFPemY3kI26WE+34DO2IOxzV2SYm9nEix9H82rF:zyPjKr5BNDuXvfY0RfmIkzLNP5rJ

Score

10^/10

agenttesla 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

Detect packed .NET executables. Mostly AgentTeslaV4. 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2756-22-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2756-29-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2756-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2756-27-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2756-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2756-22-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2756-29-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2756-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2756-27-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2756-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects executables referencing Windows vault credential objects. Observed in infostealers 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2756-22-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2756-29-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2756-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2756-27-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2756-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2756-22-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2756-29-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2756-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2756-27-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2756-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

Detects executables referencing many email and collaboration clients. Observed in information stealers 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2756-22-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2756-29-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2756-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2756-27-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2756-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

Detects executables referencing many file transfer clients. Observed in information stealers 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2756-22-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2756-29-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2756-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2756-27-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2756-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Invoice.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Run\BjTxJte = "C:\\Users\\Admin\\AppData\\Roaming\\BjTxJte\\BjTxJte.exe"	Invoice.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.

Processes:

flow ioc

4 api.ipify.org
5 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

Invoice.exe

description pid process target process

PID 1700 set thread context of 2756 1700 Invoice.exe Invoice.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

2612 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Invoice.exepowershell.exepowershell.exe

pid process

2756 Invoice.exe
2756 Invoice.exe
2656 powershell.exe
3000 powershell.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Invoice.exepowershell.exepowershell.exe

description pid process

Token: SeDebugPrivilege 2756 Invoice.exe
Token: SeDebugPrivilege 2656 powershell.exe
Token: SeDebugPrivilege 3000 powershell.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Invoice.exe

pid process

2756 Invoice.exe

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

description	pid	process	target process
PID 1700 set thread context of 2756	1700	Invoice.exe	Invoice.exe

pid	process
2612	schtasks.exe

pid	process
2756	Invoice.exe
2756	Invoice.exe
2656	powershell.exe
3000	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2756	Invoice.exe
Token: SeDebugPrivilege	2656	powershell.exe
Token: SeDebugPrivilege	3000	powershell.exe

pid	process
2756	Invoice.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

Invoice.exe

description	pid	process	target process
PID 1700 wrote to memory of 3000	1700	Invoice.exe	powershell.exe
PID 1700 wrote to memory of 3000	1700	Invoice.exe	powershell.exe
PID 1700 wrote to memory of 3000	1700	Invoice.exe	powershell.exe
PID 1700 wrote to memory of 3000	1700	Invoice.exe	powershell.exe
PID 1700 wrote to memory of 2656	1700	Invoice.exe	powershell.exe
PID 1700 wrote to memory of 2656	1700	Invoice.exe	powershell.exe
PID 1700 wrote to memory of 2656	1700	Invoice.exe	powershell.exe
PID 1700 wrote to memory of 2656	1700	Invoice.exe	powershell.exe
PID 1700 wrote to memory of 2612	1700	Invoice.exe	schtasks.exe
PID 1700 wrote to memory of 2612	1700	Invoice.exe	schtasks.exe
PID 1700 wrote to memory of 2612	1700	Invoice.exe	schtasks.exe
PID 1700 wrote to memory of 2612	1700	Invoice.exe	schtasks.exe
PID 1700 wrote to memory of 2756	1700	Invoice.exe	Invoice.exe
PID 1700 wrote to memory of 2756	1700	Invoice.exe	Invoice.exe
PID 1700 wrote to memory of 2756	1700	Invoice.exe	Invoice.exe
PID 1700 wrote to memory of 2756	1700	Invoice.exe	Invoice.exe
PID 1700 wrote to memory of 2756	1700	Invoice.exe	Invoice.exe
PID 1700 wrote to memory of 2756	1700	Invoice.exe	Invoice.exe
PID 1700 wrote to memory of 2756	1700	Invoice.exe	Invoice.exe
PID 1700 wrote to memory of 2756	1700	Invoice.exe	Invoice.exe
PID 1700 wrote to memory of 2756	1700	Invoice.exe	Invoice.exe

C:\Users\Admin\AppData\Local\Temp\Invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1700
- 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\Invoice.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3000
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\kaJNzBnxbXm.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2656
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kaJNzBnxbXm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp36C9.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2612
- C:\Users\Admin\AppData\Local\Temp\Invoice.exe
  "C:\Users\Admin\AppData\Local\Temp\Invoice.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2756

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

4

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp36C9.tmp

Filesize
1KB

MD5
0455b02931d0e95c81f444c566d089e6

SHA1
d2f826fed018db9a441e8c2a2728e29e112897e3

SHA256
27d60597e0090e890652e92f1bc798e7b80ce3afbdaaa10e3ce376ce1395eee9

SHA512
45e160e7c22a7478bb7c548e8ab1b337e7f8f8e7cbb01c5478d87e89b22dcaf1965ff4fb998d7f3d7e42be87cc02e60b4dd6a5d9c8c310128385bc58ab701cfe

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

Filesize
7KB

MD5
100b056472b6abe1cf817a5ae811691d

SHA1
4bb19ebc6e2a1cf89e6fd725b4d29f15f383daea

SHA256
bae4687a1846599b34b68d5e9684136757313d4af33707796f50b6ff62339c88

SHA512
3740077804d3f44026444348234bb1de86c4750f63304967fd5dc397a97aeb7d698a92d01192f18595c873a9beb42a383d0c2030261c6d3f74ef3a1ede984352

Download Submit
memory/1700-30-0x00000000745B0000-0x0000000074C9E000-memory.dmp

Filesize
6.9MB

Download
memory/1700-1-0x00000000745B0000-0x0000000074C9E000-memory.dmp

Filesize
6.9MB

Download
memory/1700-2-0x0000000004C20000-0x0000000004C60000-memory.dmp

Filesize
256KB

Download
memory/1700-3-0x0000000000700000-0x0000000000720000-memory.dmp

Filesize
128KB

Download
memory/1700-4-0x00000000008D0000-0x00000000008E4000-memory.dmp

Filesize
80KB

Download
memory/1700-5-0x0000000005A60000-0x0000000005AE2000-memory.dmp

Filesize
520KB

Download
memory/1700-0-0x0000000000D00000-0x0000000000DD4000-memory.dmp

Filesize
848KB

Download
memory/2756-19-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2756-29-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2756-28-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2756-27-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2756-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2756-24-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2756-20-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2756-22-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads