agenttesla | d44d889a83ad2d32ebadca99e33af4823c015159862365305cd3eda5fc4bcf99

Analysis

max time kernel
147s
max time network
118s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28-03-2024 19:16

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General

Target

REMITTANCE COPY.exe
Size

935KB
MD5

c4c5220498e9618df1443285a8bcd048
SHA1

e8f0b41c0eb27aaa8f3a552513ca7145a241fe91
SHA256

99f730c18a5d4a5bb442c5b7045bf38f2aa183a7c9121ee60ce7bb345510557f
SHA512

cf9515514500c7ec674390aa30cdfb15960167dbe99164de757762b5d0fda913e442be2cfd4420b2c2f5a942c9ebdb5efb5619010245cfc93b83aec741a03b59
SSDEEP

6144:bCw9AapDnOzrN9J6Uq4/TC8lDBjyaMqr4zyUHVIB8NafdOUJq3WC1NfCBmCrnrIK:b59p91Ubr1WlqTiV1NnUJq3WQfCGcT3

Score

10^/10

agenttesla collection evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.westviewcargos.com
Port:
587
Username:
[email protected]
Password:
Choice@@@12345

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

AgentTesla payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2192-15-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2192-14-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2192-18-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2192-22-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2192-20-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2192-28-0x0000000004850000-0x0000000004890000-memory.dmp	family_agenttesla

Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

REMITTANCE COPY.exe

description ioc process

Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions REMITTANCE COPY.exe
Looks for VMWare Tools registry key 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

REMITTANCE COPY.exe

description ioc process

Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools REMITTANCE COPY.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	REMITTANCE COPY.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools	REMITTANCE COPY.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

REMITTANCE COPY.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	REMITTANCE COPY.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	REMITTANCE COPY.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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

REMITTANCE COPY.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	REMITTANCE COPY.exe
Key opened	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	REMITTANCE COPY.exe
Key opened	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	REMITTANCE COPY.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

REMITTANCE COPY.exe

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

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

REMITTANCE COPY.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	REMITTANCE COPY.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	REMITTANCE COPY.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

REMITTANCE COPY.exe

description pid process target process

PID 2384 set thread context of 2192 2384 REMITTANCE COPY.exe REMITTANCE COPY.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

2716 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

REMITTANCE COPY.exeREMITTANCE COPY.exe

pid process

2384 REMITTANCE COPY.exe
2192 REMITTANCE COPY.exe
2192 REMITTANCE COPY.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

REMITTANCE COPY.exeREMITTANCE COPY.exe

description pid process

Token: SeDebugPrivilege 2384 REMITTANCE COPY.exe
Token: SeDebugPrivilege 2192 REMITTANCE COPY.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

REMITTANCE COPY.exe

pid process

2192 REMITTANCE COPY.exe

description	pid	process	target process
PID 2384 set thread context of 2192	2384	REMITTANCE COPY.exe	REMITTANCE COPY.exe

pid	process
2716	schtasks.exe

pid	process
2384	REMITTANCE COPY.exe
2192	REMITTANCE COPY.exe
2192	REMITTANCE COPY.exe

description	pid	process
Token: SeDebugPrivilege	2384	REMITTANCE COPY.exe
Token: SeDebugPrivilege	2192	REMITTANCE COPY.exe

pid	process
2192	REMITTANCE COPY.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

REMITTANCE COPY.exe

description	pid	process	target process
PID 2384 wrote to memory of 2716	2384	REMITTANCE COPY.exe	schtasks.exe
PID 2384 wrote to memory of 2716	2384	REMITTANCE COPY.exe	schtasks.exe
PID 2384 wrote to memory of 2716	2384	REMITTANCE COPY.exe	schtasks.exe
PID 2384 wrote to memory of 2716	2384	REMITTANCE COPY.exe	schtasks.exe
PID 2384 wrote to memory of 2192	2384	REMITTANCE COPY.exe	REMITTANCE COPY.exe
PID 2384 wrote to memory of 2192	2384	REMITTANCE COPY.exe	REMITTANCE COPY.exe
PID 2384 wrote to memory of 2192	2384	REMITTANCE COPY.exe	REMITTANCE COPY.exe
PID 2384 wrote to memory of 2192	2384	REMITTANCE COPY.exe	REMITTANCE COPY.exe
PID 2384 wrote to memory of 2192	2384	REMITTANCE COPY.exe	REMITTANCE COPY.exe
PID 2384 wrote to memory of 2192	2384	REMITTANCE COPY.exe	REMITTANCE COPY.exe
PID 2384 wrote to memory of 2192	2384	REMITTANCE COPY.exe	REMITTANCE COPY.exe
PID 2384 wrote to memory of 2192	2384	REMITTANCE COPY.exe	REMITTANCE COPY.exe
PID 2384 wrote to memory of 2192	2384	REMITTANCE COPY.exe	REMITTANCE COPY.exe

outlook_office_path 1 IoCs

Processes:

REMITTANCE COPY.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	REMITTANCE COPY.exe

outlook_win_path 1 IoCs

Processes:

REMITTANCE COPY.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	REMITTANCE COPY.exe

C:\Users\Admin\AppData\Local\Temp\REMITTANCE COPY.exe
"C:\Users\Admin\AppData\Local\Temp\REMITTANCE COPY.exe"
1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2384

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zcvmximsXc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA821.tmp"
2⤵
- Creates scheduled task(s)
PID:2716

C:\Users\Admin\AppData\Local\Temp\REMITTANCE COPY.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:2192

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

Virtualization/Sandbox Evasion

T1497

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Peripheral Device Discovery

T1120

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpA821.tmp
Filesize
1KB

MD5
550d320609b775c7a5388139ddb33099

SHA1
b9ac411b85050dbe4d308d71f1b1c8f8f1caff06

SHA256
5181b7a413ee3551ca24c93737993d62103ad71209a146e8233082fe56963134

SHA512
fa1242f57f7555ec1b9c81315610e6413557443c3540819a994800c299943adf269ff99587dec1137c025e3e8d82948399cc89bae5948a0372ac4cc8e8216a07

Download Submit
memory/2192-24-0x0000000073FC0000-0x00000000746AE000-memory.dmp

Filesize
6.9MB

Download
memory/2192-30-0x0000000004850000-0x0000000004890000-memory.dmp

Filesize
256KB

Download
memory/2192-28-0x0000000004850000-0x0000000004890000-memory.dmp

Filesize
256KB

Download
memory/2192-27-0x0000000073FC0000-0x00000000746AE000-memory.dmp

Filesize
6.9MB

Download
memory/2192-25-0x0000000004850000-0x0000000004890000-memory.dmp

Filesize
256KB

Download
memory/2192-22-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2192-20-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2192-29-0x0000000004850000-0x0000000004890000-memory.dmp

Filesize
256KB

Download
memory/2192-11-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2192-13-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2192-15-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2192-14-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2192-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2192-18-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2384-6-0x00000000052C0000-0x0000000005344000-memory.dmp

Filesize
528KB

Download
memory/2384-7-0x0000000001EC0000-0x0000000001EFE000-memory.dmp

Filesize
248KB

Download
memory/2384-0-0x0000000000990000-0x0000000000A80000-memory.dmp

Filesize
960KB

Download
memory/2384-23-0x0000000073FC0000-0x00000000746AE000-memory.dmp

Filesize
6.9MB

Download
memory/2384-5-0x00000000020B0000-0x00000000020F0000-memory.dmp

Filesize
256KB

Download
memory/2384-4-0x0000000073FC0000-0x00000000746AE000-memory.dmp

Filesize
6.9MB

Download
memory/2384-3-0x0000000000280000-0x0000000000294000-memory.dmp

Filesize
80KB

Download
memory/2384-2-0x00000000020B0000-0x00000000020F0000-memory.dmp

Filesize
256KB

Download
memory/2384-1-0x0000000073FC0000-0x00000000746AE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads