agenttesla | d2d8470a451c5d183f4e337417397fca0c75e00e51f9ddfffbbaf9b2f675edc1

Analysis

max time kernel
130s
max time network
150s
platform
windows7_x64
resource
win7-20220414-en
submitted
20-05-2022 14:30

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General

Target

Fa-200000345.exe
Size

974KB
MD5

7789215ed9d6d730fb242791151786ea
SHA1

a911fb8e9f323561f202f58cb26f177a5b7eef72
SHA256

13c555d2bc29bc384b7c496c0aefadfbe38d7b415e11c43bdbcfdf702062d1f3
SHA512

b49cbc134c1e612b7e861e2528ea282980b9cb9a8d109cb3f9ce37b94e76565874da3d19ae88f92be2f917889909feaddad925193f69743564a6f18648586905

Score

10^/10

agenttesla xpertrat collection evasion keylogger persistence rat spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.salsabile.com
Port:
587
Username:
recep.mag.mp@salsabile.com
Password:
@SALSA@2015

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
UAC bypass 3 TTPs
evasion trojan

Bypass User Account Control
T1088

Disabling Security Tools
T1089

Modify Registry
T1112
Windows security bypass 2 TTPs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112
XpertRAT
XpertRAT is a remote access trojan with various capabilities.
rat xpertrat

AgentTesla Payload 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/828-62-0x00000000004D0000-0x000000000052A000-memory.dmp	family_agenttesla
behavioral1/memory/828-64-0x00000000004D0000-0x000000000052A000-memory.dmp	family_agenttesla

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

iexplore.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	iexplore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\Q0V4O1A8-O5N3-X331-D1M0-A2W3Q6D8C2R6 = "C:\\Users\\Admin\\AppData\\Roaming\\Q0V4O1A8-O5N3-X331-D1M0-A2W3Q6D8C2R6\\Q0V4O1A8-O5N3-X331-D1M0-A2W3Q6D8C2R6.exe"	iexplore.exe

Executes dropped EXE 1 IoCs

Processes:

ATT&T.exe

pid process

1932 ATT&T.exe
Loads dropped DLL 2 IoCs

Processes:

Fa-200000345.exe

pid process

336 Fa-200000345.exe
336 Fa-200000345.exe
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
T1081
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
T1081
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
T1081
Windows security modification 2 TTPs 1 IoCs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112

Processes:

ATT&T.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "0" ATT&T.exe

pid	process
1932	ATT&T.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "0"	ATT&T.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

Fa-200000345.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Fa-200000345.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Fa-200000345.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Fa-200000345.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

iexplore.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\Q0V4O1A8-O5N3-X331-D1M0-A2W3Q6D8C2R6 = "C:\\Users\\Admin\\AppData\\Roaming\\Q0V4O1A8-O5N3-X331-D1M0-A2W3Q6D8C2R6\\Q0V4O1A8-O5N3-X331-D1M0-A2W3Q6D8C2R6.exe"	iexplore.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Q0V4O1A8-O5N3-X331-D1M0-A2W3Q6D8C2R6 = "C:\\Users\\Admin\\AppData\\Roaming\\Q0V4O1A8-O5N3-X331-D1M0-A2W3Q6D8C2R6\\Q0V4O1A8-O5N3-X331-D1M0-A2W3Q6D8C2R6.exe"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	iexplore.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

ATT&T.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" ATT&T.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	ATT&T.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

Fa-200000345.exeATT&T.exe

description	pid	process	target process
PID 336 set thread context of 828	336	Fa-200000345.exe	Fa-200000345.exe
PID 1932 set thread context of 1788	1932	ATT&T.exe	iexplore.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 30 IoCs

Processes:

Fa-200000345.exeFa-200000345.exeATT&T.exeFa-200000345.exe

pid	process
336	Fa-200000345.exe
1296	Fa-200000345.exe
1296	Fa-200000345.exe
1296	Fa-200000345.exe
1932	ATT&T.exe
1296	Fa-200000345.exe
1296	Fa-200000345.exe
1296	Fa-200000345.exe
1932	ATT&T.exe
1296	Fa-200000345.exe
1296	Fa-200000345.exe
1296	Fa-200000345.exe
1296	Fa-200000345.exe
1296	Fa-200000345.exe
1296	Fa-200000345.exe
1296	Fa-200000345.exe
1296	Fa-200000345.exe
1296	Fa-200000345.exe
1296	Fa-200000345.exe
1296	Fa-200000345.exe
1296	Fa-200000345.exe
1296	Fa-200000345.exe
1296	Fa-200000345.exe
1296	Fa-200000345.exe
1296	Fa-200000345.exe
1296	Fa-200000345.exe
1296	Fa-200000345.exe
1296	Fa-200000345.exe
828	Fa-200000345.exe
828	Fa-200000345.exe

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

Fa-200000345.exe

pid process

336 Fa-200000345.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

iexplore.exeFa-200000345.exe

description pid process

Token: SeDebugPrivilege 1788 iexplore.exe
Token: SeDebugPrivilege 828 Fa-200000345.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

ATT&T.exeiexplore.exe

pid process

1932 ATT&T.exe
1788 iexplore.exe

description	pid	process
Token: SeDebugPrivilege	1788	iexplore.exe
Token: SeDebugPrivilege	828	Fa-200000345.exe

pid	process
1932	ATT&T.exe
1788	iexplore.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

Fa-200000345.exeATT&T.exeiexplore.exe

description	pid	process	target process
PID 336 wrote to memory of 1932	336	Fa-200000345.exe	ATT&T.exe
PID 336 wrote to memory of 1932	336	Fa-200000345.exe	ATT&T.exe
PID 336 wrote to memory of 1932	336	Fa-200000345.exe	ATT&T.exe
PID 336 wrote to memory of 1932	336	Fa-200000345.exe	ATT&T.exe
PID 336 wrote to memory of 828	336	Fa-200000345.exe	Fa-200000345.exe
PID 336 wrote to memory of 828	336	Fa-200000345.exe	Fa-200000345.exe
PID 336 wrote to memory of 828	336	Fa-200000345.exe	Fa-200000345.exe
PID 336 wrote to memory of 828	336	Fa-200000345.exe	Fa-200000345.exe
PID 336 wrote to memory of 1296	336	Fa-200000345.exe	Fa-200000345.exe
PID 336 wrote to memory of 1296	336	Fa-200000345.exe	Fa-200000345.exe
PID 336 wrote to memory of 1296	336	Fa-200000345.exe	Fa-200000345.exe
PID 336 wrote to memory of 1296	336	Fa-200000345.exe	Fa-200000345.exe
PID 1932 wrote to memory of 1788	1932	ATT&T.exe	iexplore.exe
PID 1932 wrote to memory of 1788	1932	ATT&T.exe	iexplore.exe
PID 1932 wrote to memory of 1788	1932	ATT&T.exe	iexplore.exe
PID 1932 wrote to memory of 1788	1932	ATT&T.exe	iexplore.exe
PID 1932 wrote to memory of 1788	1932	ATT&T.exe	iexplore.exe
PID 1932 wrote to memory of 1788	1932	ATT&T.exe	iexplore.exe
PID 1932 wrote to memory of 1788	1932	ATT&T.exe	iexplore.exe
PID 1932 wrote to memory of 1788	1932	ATT&T.exe	iexplore.exe
PID 1932 wrote to memory of 1788	1932	ATT&T.exe	iexplore.exe
PID 1788 wrote to memory of 1988	1788	iexplore.exe	notepad.exe
PID 1788 wrote to memory of 1988	1788	iexplore.exe	notepad.exe
PID 1788 wrote to memory of 1988	1788	iexplore.exe	notepad.exe
PID 1788 wrote to memory of 1988	1788	iexplore.exe	notepad.exe
PID 1788 wrote to memory of 1988	1788	iexplore.exe	notepad.exe

System policy modification 1 TTPs 1 IoCs
evasion

Modify Registry
T1112

Processes:

ATT&T.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" ATT&T.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	ATT&T.exe

outlook_office_path 1 IoCs

Processes:

Fa-200000345.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Fa-200000345.exe

outlook_win_path 1 IoCs

Processes:

Fa-200000345.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Fa-200000345.exe

C:\Users\Admin\AppData\Local\Temp\Fa-200000345.exe
"C:\Users\Admin\AppData\Local\Temp\Fa-200000345.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:336

C:\Users\Admin\AppData\Local\Temp\ATT&T.exe
"C:\Users\Admin\AppData\Local\Temp\ATT&T.exe"
2⤵
- Executes dropped EXE
- Windows security modification
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1932

C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\ATT&T.exe
3⤵
- Adds policy Run key to start application
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1788

C:\Windows\SysWOW64\notepad.exe
notepad.exe
4⤵
PID:1988

C:\Users\Admin\AppData\Local\Temp\Fa-200000345.exe
"C:\Users\Admin\AppData\Local\Temp\Fa-200000345.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:828

C:\Users\Admin\AppData\Local\Temp\Fa-200000345.exe
"C:\Users\Admin\AppData\Local\Temp\Fa-200000345.exe" 2 828 7082804
2⤵
- Suspicious behavior: EnumeratesProcesses
PID:1296

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Bypass User Account Control

T1088

Defense Evasion

Bypass User Account Control

T1088

Disabling Security Tools

T1089

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\ATT&T.exe
Filesize
172KB

MD5
cb8c55e28fd767032af22d370232fdcf

SHA1
d7b9b352c2bf2fd24dbff8594d14312cf1b01b2c

SHA256
c3b001c5b7cc76d1bcf9fbb26c98fec1d577029e68379342b0d5ee00be163a27

SHA512
3136ad9fba23f9bd786863079a71c560cd4b4d3b2713955b853053ba97233b75de97bac6963a136e4397707407e395130e6bcf490fef8276a3bb0b05eaf21540

Download Submit
C:\Users\Admin\AppData\Local\Temp\ATT&T.exe
Filesize
172KB

MD5
cb8c55e28fd767032af22d370232fdcf

SHA1
d7b9b352c2bf2fd24dbff8594d14312cf1b01b2c

SHA256
c3b001c5b7cc76d1bcf9fbb26c98fec1d577029e68379342b0d5ee00be163a27

SHA512
3136ad9fba23f9bd786863079a71c560cd4b4d3b2713955b853053ba97233b75de97bac6963a136e4397707407e395130e6bcf490fef8276a3bb0b05eaf21540

Download Submit
\Users\Admin\AppData\Local\Temp\ATT&T.exe
Filesize
172KB

MD5
cb8c55e28fd767032af22d370232fdcf

SHA1
d7b9b352c2bf2fd24dbff8594d14312cf1b01b2c

SHA256
c3b001c5b7cc76d1bcf9fbb26c98fec1d577029e68379342b0d5ee00be163a27

SHA512
3136ad9fba23f9bd786863079a71c560cd4b4d3b2713955b853053ba97233b75de97bac6963a136e4397707407e395130e6bcf490fef8276a3bb0b05eaf21540

Download Submit
\Users\Admin\AppData\Local\Temp\ATT&T.exe
Filesize
172KB

MD5
cb8c55e28fd767032af22d370232fdcf

SHA1
d7b9b352c2bf2fd24dbff8594d14312cf1b01b2c

SHA256
c3b001c5b7cc76d1bcf9fbb26c98fec1d577029e68379342b0d5ee00be163a27

SHA512
3136ad9fba23f9bd786863079a71c560cd4b4d3b2713955b853053ba97233b75de97bac6963a136e4397707407e395130e6bcf490fef8276a3bb0b05eaf21540

Download Submit
memory/336-54-0x0000000075781000-0x0000000075783000-memory.dmp

Filesize
8KB

Download
memory/336-55-0x0000000000400000-0x00000000004F9000-memory.dmp

Filesize
996KB

Download
memory/828-64-0x00000000004D0000-0x000000000052A000-memory.dmp

Filesize
360KB

Download
memory/828-60-0x00000000004BEEE0-mapping.dmp

Download
memory/828-62-0x00000000004D0000-0x000000000052A000-memory.dmp

Filesize
360KB

Download
memory/828-69-0x0000000074670000-0x0000000074C1B000-memory.dmp

Filesize
5.7MB

Download
memory/1296-61-0x0000000000000000-mapping.dmp

Download
memory/1296-68-0x0000000000400000-0x00000000004F9000-memory.dmp

Filesize
996KB

Download
memory/1932-58-0x0000000000000000-mapping.dmp

Download
memory/1988-71-0x0000000000000000-mapping.dmp

Download