agenttesla | da6572812314662cf364e04dc4db580245e4598063fe952cb509575ca88392f6

Analysis

max time kernel
119s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28-03-2024 02:40

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General

Target

da6572812314662cf364e04dc4db580245e4598063fe952cb509575ca88392f6.exe
Size

602KB
MD5

cdef16a2a2116cd907aa817b11217cfd
SHA1

d23ba1f017c0e65ba65203c889a2bea963d63d3a
SHA256

da6572812314662cf364e04dc4db580245e4598063fe952cb509575ca88392f6
SHA512

9ad7168fd876ceb36229330092f2f70d5a305e9422ff7cc321684c3210ad217a214ed517041f0738eb1a98b977232dcf01d8f8e6a3ca03e3a6261baef94d90ae
SSDEEP

12288:lYyGYZS6ESbpYa4i2BzmVNhsBQN/nRTOPihFr3iUR42q6N:IUDESbwylT/nRKWrPN

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
terminal4.veeblehosting.com
Port:
587
Username:
OTUJI@gomuga.com
Password:
Ifeanyi1987@
Email To:
otuji@kailmaticarbon.com

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/2728-25-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2728-26-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2728-29-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2728-31-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2728-33-0x0000000000400000-0x0000000000442000-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/2728-25-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2728-26-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2728-29-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2728-31-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2728-33-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2728-25-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/2728-26-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/2728-29-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/2728-31-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/2728-33-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL

Detects executables packed with or use KoiVM 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1756-3-0x000000001AA90000-0x000000001AB26000-memory.dmp	INDICATOR_EXE_Packed_KoiVM

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

Processes:

resource	yara_rule
behavioral1/memory/2728-25-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2728-26-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2728-29-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2728-31-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2728-33-0x0000000000400000-0x0000000000442000-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/2728-25-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2728-26-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2728-29-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2728-31-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2728-33-0x0000000000400000-0x0000000000442000-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/2728-25-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2728-26-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2728-29-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2728-31-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2728-33-0x0000000000400000-0x0000000000442000-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/2728-25-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2728-26-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2728-29-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2728-31-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2728-33-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

Executes dropped EXE 1 IoCs

Processes:

svchost.exe

pid process

2652 svchost.exe
Loads dropped DLL 6 IoCs

Processes:

cmd.exeWerFault.exe

pid process

2044 cmd.exe
3024 WerFault.exe
3024 WerFault.exe
3024 WerFault.exe
3024 WerFault.exe
3024 WerFault.exe

pid	process
2652	svchost.exe

pid	process
2044	cmd.exe
3024	WerFault.exe
3024	WerFault.exe
3024	WerFault.exe
3024	WerFault.exe
3024	WerFault.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

da6572812314662cf364e04dc4db580245e4598063fe952cb509575ca88392f6.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "\"C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe\""	da6572812314662cf364e04dc4db580245e4598063fe952cb509575ca88392f6.exe

Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

4 ip-api.com
Suspicious use of SetThreadContext 1 IoCs

Processes:

svchost.exe

description pid process target process

PID 2652 set thread context of 2728 2652 svchost.exe installutil.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

1316 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

2532 timeout.exe

flow	ioc
4	ip-api.com

description	pid	process	target process
PID 2652 set thread context of 2728	2652	svchost.exe	installutil.exe

pid	process
1316	schtasks.exe

pid	process
2532	timeout.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

da6572812314662cf364e04dc4db580245e4598063fe952cb509575ca88392f6.exeinstallutil.exe

pid	process
1756	da6572812314662cf364e04dc4db580245e4598063fe952cb509575ca88392f6.exe
1756	da6572812314662cf364e04dc4db580245e4598063fe952cb509575ca88392f6.exe
2728	installutil.exe
2728	installutil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

da6572812314662cf364e04dc4db580245e4598063fe952cb509575ca88392f6.exesvchost.exeinstallutil.exe

description	pid	process
Token: SeDebugPrivilege	1756	da6572812314662cf364e04dc4db580245e4598063fe952cb509575ca88392f6.exe
Token: SeDebugPrivilege	2652	svchost.exe
Token: SeDebugPrivilege	2728	installutil.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

da6572812314662cf364e04dc4db580245e4598063fe952cb509575ca88392f6.execmd.execmd.exesvchost.exe

description	pid	process	target process
PID 1756 wrote to memory of 1964	1756	da6572812314662cf364e04dc4db580245e4598063fe952cb509575ca88392f6.exe	cmd.exe
PID 1756 wrote to memory of 1964	1756	da6572812314662cf364e04dc4db580245e4598063fe952cb509575ca88392f6.exe	cmd.exe
PID 1756 wrote to memory of 1964	1756	da6572812314662cf364e04dc4db580245e4598063fe952cb509575ca88392f6.exe	cmd.exe
PID 1756 wrote to memory of 2044	1756	da6572812314662cf364e04dc4db580245e4598063fe952cb509575ca88392f6.exe	cmd.exe
PID 1756 wrote to memory of 2044	1756	da6572812314662cf364e04dc4db580245e4598063fe952cb509575ca88392f6.exe	cmd.exe
PID 1756 wrote to memory of 2044	1756	da6572812314662cf364e04dc4db580245e4598063fe952cb509575ca88392f6.exe	cmd.exe
PID 1964 wrote to memory of 1316	1964	cmd.exe	schtasks.exe
PID 1964 wrote to memory of 1316	1964	cmd.exe	schtasks.exe
PID 1964 wrote to memory of 1316	1964	cmd.exe	schtasks.exe
PID 2044 wrote to memory of 2532	2044	cmd.exe	timeout.exe
PID 2044 wrote to memory of 2532	2044	cmd.exe	timeout.exe
PID 2044 wrote to memory of 2532	2044	cmd.exe	timeout.exe
PID 2044 wrote to memory of 2652	2044	cmd.exe	svchost.exe
PID 2044 wrote to memory of 2652	2044	cmd.exe	svchost.exe
PID 2044 wrote to memory of 2652	2044	cmd.exe	svchost.exe
PID 2652 wrote to memory of 2728	2652	svchost.exe	installutil.exe
PID 2652 wrote to memory of 2728	2652	svchost.exe	installutil.exe
PID 2652 wrote to memory of 2728	2652	svchost.exe	installutil.exe
PID 2652 wrote to memory of 2728	2652	svchost.exe	installutil.exe
PID 2652 wrote to memory of 2728	2652	svchost.exe	installutil.exe
PID 2652 wrote to memory of 2728	2652	svchost.exe	installutil.exe
PID 2652 wrote to memory of 2728	2652	svchost.exe	installutil.exe
PID 2652 wrote to memory of 2728	2652	svchost.exe	installutil.exe
PID 2652 wrote to memory of 2728	2652	svchost.exe	installutil.exe
PID 2652 wrote to memory of 2728	2652	svchost.exe	installutil.exe
PID 2652 wrote to memory of 2728	2652	svchost.exe	installutil.exe
PID 2652 wrote to memory of 2728	2652	svchost.exe	installutil.exe
PID 2652 wrote to memory of 3024	2652	svchost.exe	WerFault.exe
PID 2652 wrote to memory of 3024	2652	svchost.exe	WerFault.exe
PID 2652 wrote to memory of 3024	2652	svchost.exe	WerFault.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\da6572812314662cf364e04dc4db580245e4598063fe952cb509575ca88392f6.exe
"C:\Users\Admin\AppData\Local\Temp\da6572812314662cf364e04dc4db580245e4598063fe952cb509575ca88392f6.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1756

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:1964

C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
3⤵
- Creates scheduled task(s)
PID:1316

C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp4BC0.tmp.bat""
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2044

C:\Windows\system32\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:2532

C:\Users\Admin\AppData\Roaming\svchost.exe
"C:\Users\Admin\AppData\Roaming\svchost.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2652

C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2728

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2652 -s 716
4⤵
- Loads dropped DLL
PID:3024

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Query Registry

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp4BC0.tmp.bat
Filesize
151B

MD5
5300f1c6eb2aaa68dd6e84ed7bccccac

SHA1
7c2c27d26022651603238f0876891d997c3ecb0c

SHA256
87d0229726abb06d0c41512a24226511cb05d35d12465b3ec48c436804c68d56

SHA512
c50f31b416270e559e36bd6bff8c31e84bb5bf21aaa3acdebf0bec2fef579c44dc4cfd95a75b0c8fa255530258a26597f1b37479bf14f6407fe77f6718a067d1

Download Submit
\Users\Admin\AppData\Roaming\svchost.exe
Filesize
602KB

MD5
cdef16a2a2116cd907aa817b11217cfd

SHA1
d23ba1f017c0e65ba65203c889a2bea963d63d3a

SHA256
da6572812314662cf364e04dc4db580245e4598063fe952cb509575ca88392f6

SHA512
9ad7168fd876ceb36229330092f2f70d5a305e9422ff7cc321684c3210ad217a214ed517041f0738eb1a98b977232dcf01d8f8e6a3ca03e3a6261baef94d90ae

Download Submit
memory/1756-1-0x000007FEF5370000-0x000007FEF5D5C000-memory.dmp

Filesize
9.9MB

Download
memory/1756-2-0x000000001B330000-0x000000001B3B0000-memory.dmp

Filesize
512KB

Download
memory/1756-3-0x000000001AA90000-0x000000001AB26000-memory.dmp

Filesize
600KB

Download
memory/1756-13-0x000007FEF5370000-0x000007FEF5D5C000-memory.dmp

Filesize
9.9MB

Download
memory/1756-0-0x0000000000020000-0x0000000000028000-memory.dmp

Filesize
32KB

Download
memory/2652-41-0x000007FEF4980000-0x000007FEF536C000-memory.dmp

Filesize
9.9MB

Download
memory/2652-18-0x00000000012D0000-0x00000000012D8000-memory.dmp

Filesize
32KB

Download
memory/2652-19-0x000007FEF4980000-0x000007FEF536C000-memory.dmp

Filesize
9.9MB

Download
memory/2652-20-0x0000000000A80000-0x0000000000B00000-memory.dmp

Filesize
512KB

Download
memory/2728-23-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2728-26-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2728-21-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2728-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2728-29-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2728-31-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2728-33-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2728-39-0x0000000074240000-0x000000007492E000-memory.dmp

Filesize
6.9MB

Download
memory/2728-40-0x00000000048C0000-0x0000000004900000-memory.dmp

Filesize
256KB

Download
memory/2728-25-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2728-42-0x0000000074240000-0x000000007492E000-memory.dmp

Filesize
6.9MB

Download
memory/2728-43-0x00000000048C0000-0x0000000004900000-memory.dmp

Filesize
256KB

Download