agenttesla | d16c23015e1e8c42aaf428c4d375c9780ff1b3d24a904249844a25eb829be095

General

Target

TTSwiftCopy.exe
Size

644KB
MD5

bcf2c90283102d3d58781e22ead750db
SHA1

719d8160cfb6d8801fa462c47da9be16dbfa86ea
SHA256

ae693716029a02fbd7ba621099b54a85874c4f85b224e4f271ddcf8039492453
SHA512

b69b487b3bf5745ab0643c6d26a209eb64a42ec21670937d05476b69c25c1bde3877bfe3a6956e379b33bced347920fc7d5170a8d65d0617ffd8ee3d199b783d

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.flexiitankpack.com
Port:
587
Username:
james@flexiitankpack.com
Password:
N#ddFGL2

Signatures

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

AgentTesla Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/5040-143-0x0000000000160000-0x00000000001AC000-memory.dmp	family_agenttesla

Executes dropped EXE 2 IoCs

Processes:

AppDataFile.exeRegAsm.exe

pid process

4672 AppDataFile.exe
5040 RegAsm.exe

pid	process
4672	AppDataFile.exe
5040	RegAsm.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

TTSwiftCopy.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	TTSwiftCopy.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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\AppDataFile = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\Documents\\AppDataFile.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

AppDataFile.exe

description pid process target process

PID 4672 set thread context of 5040 4672 AppDataFile.exe RegAsm.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	pid	process	target process
PID 4672 set thread context of 5040	4672	AppDataFile.exe	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

Processes:

TTSwiftCopy.exeAppDataFile.exeRegAsm.exe

pid	process
3044	TTSwiftCopy.exe
3044	TTSwiftCopy.exe
3044	TTSwiftCopy.exe
3044	TTSwiftCopy.exe
3044	TTSwiftCopy.exe
3044	TTSwiftCopy.exe
3044	TTSwiftCopy.exe
3044	TTSwiftCopy.exe
3044	TTSwiftCopy.exe
3044	TTSwiftCopy.exe
3044	TTSwiftCopy.exe
3044	TTSwiftCopy.exe
3044	TTSwiftCopy.exe
3044	TTSwiftCopy.exe
3044	TTSwiftCopy.exe
3044	TTSwiftCopy.exe
3044	TTSwiftCopy.exe
3044	TTSwiftCopy.exe
3044	TTSwiftCopy.exe
3044	TTSwiftCopy.exe
3044	TTSwiftCopy.exe
3044	TTSwiftCopy.exe
3044	TTSwiftCopy.exe
3044	TTSwiftCopy.exe
4672	AppDataFile.exe
4672	AppDataFile.exe
4672	AppDataFile.exe
5040	RegAsm.exe
5040	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

TTSwiftCopy.exeAppDataFile.exeRegAsm.exe

description pid process

Token: SeDebugPrivilege 3044 TTSwiftCopy.exe
Token: SeDebugPrivilege 4672 AppDataFile.exe
Token: SeDebugPrivilege 5040 RegAsm.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegAsm.exe

pid process

5040 RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	3044	TTSwiftCopy.exe
Token: SeDebugPrivilege	4672	AppDataFile.exe
Token: SeDebugPrivilege	5040	RegAsm.exe

pid	process
5040	RegAsm.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

TTSwiftCopy.execmd.exeAppDataFile.exe

description	pid	process	target process
PID 3044 wrote to memory of 1820	3044	TTSwiftCopy.exe	cmd.exe
PID 3044 wrote to memory of 1820	3044	TTSwiftCopy.exe	cmd.exe
PID 3044 wrote to memory of 1820	3044	TTSwiftCopy.exe	cmd.exe
PID 1820 wrote to memory of 4996	1820	cmd.exe	reg.exe
PID 1820 wrote to memory of 4996	1820	cmd.exe	reg.exe
PID 1820 wrote to memory of 4996	1820	cmd.exe	reg.exe
PID 3044 wrote to memory of 4672	3044	TTSwiftCopy.exe	AppDataFile.exe
PID 3044 wrote to memory of 4672	3044	TTSwiftCopy.exe	AppDataFile.exe
PID 3044 wrote to memory of 4672	3044	TTSwiftCopy.exe	AppDataFile.exe
PID 4672 wrote to memory of 5040	4672	AppDataFile.exe	RegAsm.exe
PID 4672 wrote to memory of 5040	4672	AppDataFile.exe	RegAsm.exe
PID 4672 wrote to memory of 5040	4672	AppDataFile.exe	RegAsm.exe
PID 4672 wrote to memory of 5040	4672	AppDataFile.exe	RegAsm.exe
PID 4672 wrote to memory of 5040	4672	AppDataFile.exe	RegAsm.exe
PID 4672 wrote to memory of 5040	4672	AppDataFile.exe	RegAsm.exe
PID 4672 wrote to memory of 5040	4672	AppDataFile.exe	RegAsm.exe
PID 4672 wrote to memory of 5040	4672	AppDataFile.exe	RegAsm.exe

outlook_office_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\TTSwiftCopy.exe
"C:\Users\Admin\AppData\Local\Temp\TTSwiftCopy.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3044

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v AppDataFile /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\Documents\AppDataFile.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1820

C:\Windows\SysWOW64\reg.exe
REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v AppDataFile /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\Documents\AppDataFile.exe"
3⤵
- Adds Run key to start application
PID:4996

C:\Users\Admin\Documents\AppDataFile.exe
"C:\Users\Admin\Documents\AppDataFile.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4672

C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
"C:\Users\Admin\AppData\Local\Temp\RegAsm.exe"
3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:5040

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
Filesize
63KB

MD5
0d5df43af2916f47d00c1573797c1a13

SHA1
230ab5559e806574d26b4c20847c368ed55483b0

SHA256
c066aee7aa3aa83f763ebc5541daa266ed6c648fbffcde0d836a13b221bb2adc

SHA512
f96cf9e1890746b12daf839a6d0f16f062b72c1b8a40439f96583f242980f10f867720232a6fa0f7d4d7ac0a7a6143981a5a130d6417ea98b181447134c7cfe2

Download Submit
C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
Filesize
63KB

MD5
0d5df43af2916f47d00c1573797c1a13

SHA1
230ab5559e806574d26b4c20847c368ed55483b0

SHA256
c066aee7aa3aa83f763ebc5541daa266ed6c648fbffcde0d836a13b221bb2adc

SHA512
f96cf9e1890746b12daf839a6d0f16f062b72c1b8a40439f96583f242980f10f867720232a6fa0f7d4d7ac0a7a6143981a5a130d6417ea98b181447134c7cfe2

Download Submit
C:\Users\Admin\Documents\AppDataFile.exe
Filesize
644KB

MD5
bcf2c90283102d3d58781e22ead750db

SHA1
719d8160cfb6d8801fa462c47da9be16dbfa86ea

SHA256
ae693716029a02fbd7ba621099b54a85874c4f85b224e4f271ddcf8039492453

SHA512
b69b487b3bf5745ab0643c6d26a209eb64a42ec21670937d05476b69c25c1bde3877bfe3a6956e379b33bced347920fc7d5170a8d65d0617ffd8ee3d199b783d

Download Submit
C:\Users\Admin\Documents\AppDataFile.exe
Filesize
644KB

MD5
bcf2c90283102d3d58781e22ead750db

SHA1
719d8160cfb6d8801fa462c47da9be16dbfa86ea

SHA256
ae693716029a02fbd7ba621099b54a85874c4f85b224e4f271ddcf8039492453

SHA512
b69b487b3bf5745ab0643c6d26a209eb64a42ec21670937d05476b69c25c1bde3877bfe3a6956e379b33bced347920fc7d5170a8d65d0617ffd8ee3d199b783d

Download Submit
memory/1820-134-0x0000000000000000-mapping.dmp

Download
memory/3044-130-0x0000000000350000-0x00000000003F8000-memory.dmp

Filesize
672KB

Download
memory/3044-133-0x00000000074F0000-0x0000000007534000-memory.dmp

Filesize
272KB

Download
memory/3044-132-0x0000000007370000-0x0000000007402000-memory.dmp

Filesize
584KB

Download
memory/3044-131-0x0000000007820000-0x0000000007DC4000-memory.dmp

Filesize
5.6MB

Download
memory/4672-136-0x0000000000000000-mapping.dmp

Download
memory/4996-135-0x0000000000000000-mapping.dmp

Download
memory/5040-139-0x0000000000000000-mapping.dmp

Download
memory/5040-143-0x0000000000160000-0x00000000001AC000-memory.dmp

Filesize
304KB

Download
memory/5040-144-0x0000000004BC0000-0x0000000004C5C000-memory.dmp

Filesize
624KB

Download
memory/5040-145-0x0000000005830000-0x0000000005896000-memory.dmp

Filesize
408KB

Download
memory/5040-146-0x0000000005FA0000-0x0000000005FF0000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads