agenttesla | ba56d12e7e4a9881bf9d8dd6859757ac2df68218b41bc64d38ccad08e5403ac3

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 02:33

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General

Target

Inquiry.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:
[email protected]
Password:
Ifeanyi1987@
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/2468-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2468-23-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2424-30-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2424-33-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2424-35-0x0000000000400000-0x0000000000442000-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/2468-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2468-23-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2424-30-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2424-33-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2424-35-0x0000000000400000-0x0000000000442000-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/2468-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/2468-23-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/2424-30-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/2424-33-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral1/memory/2424-35-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL

Detects executables packed with or use KoiVM 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1932-3-0x000000001B3F0000-0x000000001B486000-memory.dmp	INDICATOR_EXE_Packed_KoiVM

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

Processes:

resource	yara_rule
behavioral1/memory/2468-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2468-23-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2424-30-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2424-33-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2424-35-0x0000000000400000-0x0000000000442000-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/2468-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2468-23-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2424-30-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2424-33-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2424-35-0x0000000000400000-0x0000000000442000-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/2468-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2468-23-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2424-30-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2424-33-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2424-35-0x0000000000400000-0x0000000000442000-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/2468-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2468-23-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2424-30-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2424-33-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2424-35-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

Executes dropped EXE 1 IoCs

Processes:

svchost.exe

pid process

2708 svchost.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

2660 cmd.exe

pid	process
2708	svchost.exe

pid	process
2660	cmd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Inquiry.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "\"C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe\""	Inquiry.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 2708 set thread context of 2424 2708 svchost.exe jsc.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

2700 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

2548 timeout.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Inquiry.exejsc.exe

pid process

1932 Inquiry.exe
1932 Inquiry.exe
2424 jsc.exe
2424 jsc.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Inquiry.exesvchost.exejsc.exe

description pid process

Token: SeDebugPrivilege 1932 Inquiry.exe
Token: SeDebugPrivilege 2708 svchost.exe
Token: SeDebugPrivilege 2424 jsc.exe

flow	ioc
4	ip-api.com

description	pid	process	target process
PID 2708 set thread context of 2424	2708	svchost.exe	jsc.exe

pid	process
2700	schtasks.exe

pid	process
2548	timeout.exe

pid	process
1932	Inquiry.exe
1932	Inquiry.exe
2424	jsc.exe
2424	jsc.exe

description	pid	process
Token: SeDebugPrivilege	1932	Inquiry.exe
Token: SeDebugPrivilege	2708	svchost.exe
Token: SeDebugPrivilege	2424	jsc.exe

Suspicious use of WriteProcessMemory 36 IoCs

Processes:

Inquiry.execmd.execmd.exesvchost.exe

description	pid	process	target process
PID 1932 wrote to memory of 3044	1932	Inquiry.exe	cmd.exe
PID 1932 wrote to memory of 3044	1932	Inquiry.exe	cmd.exe
PID 1932 wrote to memory of 3044	1932	Inquiry.exe	cmd.exe
PID 1932 wrote to memory of 2660	1932	Inquiry.exe	cmd.exe
PID 1932 wrote to memory of 2660	1932	Inquiry.exe	cmd.exe
PID 1932 wrote to memory of 2660	1932	Inquiry.exe	cmd.exe
PID 3044 wrote to memory of 2700	3044	cmd.exe	schtasks.exe
PID 3044 wrote to memory of 2700	3044	cmd.exe	schtasks.exe
PID 3044 wrote to memory of 2700	3044	cmd.exe	schtasks.exe
PID 2660 wrote to memory of 2548	2660	cmd.exe	timeout.exe
PID 2660 wrote to memory of 2548	2660	cmd.exe	timeout.exe
PID 2660 wrote to memory of 2548	2660	cmd.exe	timeout.exe
PID 2660 wrote to memory of 2708	2660	cmd.exe	svchost.exe
PID 2660 wrote to memory of 2708	2660	cmd.exe	svchost.exe
PID 2660 wrote to memory of 2708	2660	cmd.exe	svchost.exe
PID 2708 wrote to memory of 2468	2708	svchost.exe	msbuild.exe
PID 2708 wrote to memory of 2468	2708	svchost.exe	msbuild.exe
PID 2708 wrote to memory of 2468	2708	svchost.exe	msbuild.exe
PID 2708 wrote to memory of 2468	2708	svchost.exe	msbuild.exe
PID 2708 wrote to memory of 2468	2708	svchost.exe	msbuild.exe
PID 2708 wrote to memory of 2468	2708	svchost.exe	msbuild.exe
PID 2708 wrote to memory of 2468	2708	svchost.exe	msbuild.exe
PID 2708 wrote to memory of 2468	2708	svchost.exe	msbuild.exe
PID 2708 wrote to memory of 2424	2708	svchost.exe	jsc.exe
PID 2708 wrote to memory of 2424	2708	svchost.exe	jsc.exe
PID 2708 wrote to memory of 2424	2708	svchost.exe	jsc.exe
PID 2708 wrote to memory of 2424	2708	svchost.exe	jsc.exe
PID 2708 wrote to memory of 2424	2708	svchost.exe	jsc.exe
PID 2708 wrote to memory of 2424	2708	svchost.exe	jsc.exe
PID 2708 wrote to memory of 2424	2708	svchost.exe	jsc.exe
PID 2708 wrote to memory of 2424	2708	svchost.exe	jsc.exe
PID 2708 wrote to memory of 2424	2708	svchost.exe	jsc.exe
PID 2708 wrote to memory of 2488	2708	svchost.exe	jsc.exe
PID 2708 wrote to memory of 2488	2708	svchost.exe	jsc.exe
PID 2708 wrote to memory of 2488	2708	svchost.exe	jsc.exe
PID 2708 wrote to memory of 2488	2708	svchost.exe	jsc.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\Inquiry.exe
"C:\Users\Admin\AppData\Local\Temp\Inquiry.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1932

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:3044

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:2700

C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp54D4.tmp.bat""
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2660

C:\Windows\system32\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:2548

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:2708

C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe"
4⤵
PID:2468

C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2424

C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
4⤵
PID:2488

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\tmp54D4.tmp.bat
Filesize
151B

MD5
9f88b38e03886641a432f95be1b0c7ac

SHA1
79ed46073d9d3a16bb4083facfc95f74fc1d6017

SHA256
cf4b2940a6920fe940ef1cd25c0c47460477918b200f79a643794d57b493fc73

SHA512
000317761dbf88a42fd462b5173267ffd8ebdd4ee007e0df1763a2cc55d08b41726dc21b2a1d0596844b7a10b0ba5f12b02200f0cefdfc7464da8088327bf308

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

MD5
cdef16a2a2116cd907aa817b11217cfd

SHA1
d23ba1f017c0e65ba65203c889a2bea963d63d3a

SHA256
da6572812314662cf364e04dc4db580245e4598063fe952cb509575ca88392f6

SHA512
9ad7168fd876ceb36229330092f2f70d5a305e9422ff7cc321684c3210ad217a214ed517041f0738eb1a98b977232dcf01d8f8e6a3ca03e3a6261baef94d90ae

Download Submit
memory/1932-0-0x0000000001170000-0x0000000001178000-memory.dmp

Filesize
32KB

Download
memory/1932-1-0x000007FEF5480000-0x000007FEF5E6C000-memory.dmp

Filesize
9.9MB

Download
memory/1932-2-0x000000001B120000-0x000000001B1A0000-memory.dmp

Filesize
512KB

Download
memory/1932-3-0x000000001B3F0000-0x000000001B486000-memory.dmp

Filesize
600KB

Download
memory/1932-13-0x000007FEF5480000-0x000007FEF5E6C000-memory.dmp

Filesize
9.9MB

Download
memory/2424-30-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2424-29-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2424-38-0x0000000074300000-0x00000000749EE000-memory.dmp

Filesize
6.9MB

Download
memory/2424-37-0x0000000004C90000-0x0000000004CD0000-memory.dmp

Filesize
256KB

Download
memory/2424-36-0x0000000074300000-0x00000000749EE000-memory.dmp

Filesize
6.9MB

Download
memory/2424-35-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2424-33-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2468-24-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2468-22-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2468-23-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2468-21-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2708-18-0x0000000000810000-0x0000000000818000-memory.dmp

Filesize
32KB

Download
memory/2708-32-0x000007FEF4A90000-0x000007FEF547C000-memory.dmp

Filesize
9.9MB

Download
memory/2708-19-0x000007FEF4A90000-0x000007FEF547C000-memory.dmp

Filesize
9.9MB

Download
memory/2708-20-0x000000001AB80000-0x000000001AC00000-memory.dmp

Filesize
512KB

Download