agenttesla | 622314078d28b0207d233d56ffd54de12e588cc1f2f430c081a8a984b3362069

General

Target

PO00211.exe
Size

717KB
MD5

a4d4780d7703925eff77e36e2485b5f6
SHA1

b61654691da57abecd6a4a1fe937a0cb3d51926a
SHA256

fffe301ce73fde6ee8c35f49fa5045ba25c37d433d657f885e10aae3c1c2b4c3
SHA512

43ffd31603200dcf8277851be8a40cc8bb2314c3e5815ca2805a8c0c05af259578e5cdaaf7551481b6641574f0927ba3cd1717fed456fffcc7eeb714a49498e8
SSDEEP

12288:LPOAef9Bz9TsGVtslqGunI1pj5esrZv/3v1VWCcbl3CisyCY2nBr2nLTMO+hg3kR:qhAlqGj9xZvPNEHhSi/u2nLT6hgi

Score

10^/10

agenttesla execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.formosabag.co.id
Port:
587
Username:
[email protected]
Password:
@2022exim02^^**
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

resource	yara_rule
behavioral1/memory/2480-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2480-30-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2480-27-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2480-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2480-22-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01

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

resource	yara_rule
behavioral1/memory/2480-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2480-30-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2480-27-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2480-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2480-22-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

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

resource	yara_rule
behavioral1/memory/2480-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2480-30-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2480-27-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2480-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2480-22-0x0000000000400000-0x0000000000442000-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

resource	yara_rule
behavioral1/memory/2480-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2480-30-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2480-27-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2480-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2480-22-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

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

resource	yara_rule
behavioral1/memory/2480-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2480-30-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2480-27-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2480-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2480-22-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

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

resource	yara_rule
behavioral1/memory/2480-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2480-30-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2480-27-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2480-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2480-22-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

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
2572	powershell.exe
2520	powershell.exe

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

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\YxAesh = "C:\\Users\\Admin\\AppData\\Roaming\\YxAesh\\YxAesh.exe"	PO00211.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 1040 set thread context of 2480	1040	PO00211.exe	34

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

pid	Process
2568	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1040	PO00211.exe
1040	PO00211.exe
2480	PO00211.exe
2480	PO00211.exe
2572	powershell.exe
2520	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1040	PO00211.exe
Token: SeDebugPrivilege	2480	PO00211.exe
Token: SeDebugPrivilege	2572	powershell.exe
Token: SeDebugPrivilege	2520	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2480	PO00211.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1040 wrote to memory of 2572	1040	PO00211.exe	28
PID 1040 wrote to memory of 2572	1040	PO00211.exe	28
PID 1040 wrote to memory of 2572	1040	PO00211.exe	28
PID 1040 wrote to memory of 2572	1040	PO00211.exe	28
PID 1040 wrote to memory of 2520	1040	PO00211.exe	30
PID 1040 wrote to memory of 2520	1040	PO00211.exe	30
PID 1040 wrote to memory of 2520	1040	PO00211.exe	30
PID 1040 wrote to memory of 2520	1040	PO00211.exe	30
PID 1040 wrote to memory of 2568	1040	PO00211.exe	31
PID 1040 wrote to memory of 2568	1040	PO00211.exe	31
PID 1040 wrote to memory of 2568	1040	PO00211.exe	31
PID 1040 wrote to memory of 2568	1040	PO00211.exe	31
PID 1040 wrote to memory of 2480	1040	PO00211.exe	34
PID 1040 wrote to memory of 2480	1040	PO00211.exe	34
PID 1040 wrote to memory of 2480	1040	PO00211.exe	34
PID 1040 wrote to memory of 2480	1040	PO00211.exe	34
PID 1040 wrote to memory of 2480	1040	PO00211.exe	34
PID 1040 wrote to memory of 2480	1040	PO00211.exe	34
PID 1040 wrote to memory of 2480	1040	PO00211.exe	34
PID 1040 wrote to memory of 2480	1040	PO00211.exe	34
PID 1040 wrote to memory of 2480	1040	PO00211.exe	34

C:\Users\Admin\AppData\Local\Temp\PO00211.exe
"C:\Users\Admin\AppData\Local\Temp\PO00211.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1040
- 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\PO00211.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2572
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\drpeBYm.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2520
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\drpeBYm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4D17.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2568
- C:\Users\Admin\AppData\Local\Temp\PO00211.exe
  "C:\Users\Admin\AppData\Local\Temp\PO00211.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2480

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

Scheduled Task/Job

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\tmp4D17.tmp

Filesize
1KB

MD5
725b7feb1327882a67d0b5a5d5e03dd1

SHA1
98f6637ce1b30e2d59aabae6326b7832dd7207f5

SHA256
00340ee27ac65b716a34233e01690256193e575058d7b3a404066f21d9516827

SHA512
7ecbfdebf255aad613e3446823a54952f51aa68f379dc3b7fbe96f372291bbc0d8b4d389556adc34ef2fce36befab2a0c719c054e5359742106a56d6923f7791

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

Filesize
7KB

MD5
5d4e38af435de4140c7135842822d441

SHA1
d9cdc4ca66c43bef7ab5d43a40291a8591837d46

SHA256
98cdbfe19445c4410a2682d397cd8f642715c2125ea18bf3fab42fcf120b94f5

SHA512
6a02eb5f53961b36461b508ec99337f2ebdf3b8492a1b8028db61270c028b1228bf5c4852025328a2123c1d3580249676531a936853f42b402e6b613e66a3b54

Download Submit
memory/1040-31-0x0000000074230000-0x000000007491E000-memory.dmp

Filesize
6.9MB

Download
memory/1040-0-0x000000007423E000-0x000000007423F000-memory.dmp

Filesize
4KB

Download
memory/1040-4-0x0000000000410000-0x0000000000420000-memory.dmp

Filesize
64KB

Download
memory/1040-5-0x0000000005D80000-0x0000000005E04000-memory.dmp

Filesize
528KB

Download
memory/1040-2-0x0000000074230000-0x000000007491E000-memory.dmp

Filesize
6.9MB

Download
memory/1040-1-0x0000000000FC0000-0x0000000001074000-memory.dmp

Filesize
720KB

Download
memory/1040-3-0x0000000000480000-0x0000000000498000-memory.dmp

Filesize
96KB

Download
memory/2480-20-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2480-18-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2480-28-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2480-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2480-30-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2480-27-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2480-24-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2480-22-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads