agenttesla | a7c66c4f2c290ea9dfd03b06c9d196448e81a81dbf85f2e85b34858c5dcdb85d

General

Target

product details.scr
Size

649KB
MD5

0b658c8df4ef16787aeb36fd626d1eff
SHA1

81e2dc5c225e1a99689979d3b40407be49d282af
SHA256

a7c66c4f2c290ea9dfd03b06c9d196448e81a81dbf85f2e85b34858c5dcdb85d
SHA512

944525b19ff01074c071c432f565f7380e34e4ffe02796303b149ae01980f3407ed1c353124c453c920b88ed6bb32650a6a52babbff7d0670ac501698a071d0d

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Signatures

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

AgentTesla Payload 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1584-14-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1584-15-0x0000000000446D1E-mapping.dmp	family_agenttesla
behavioral1/memory/1584-17-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1584-18-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Executes dropped EXE 2 IoCs

Processes:

thurs.exeInstallUtil.exe

pid process

560 thurs.exe
1584 InstallUtil.exe

pid	process
560	thurs.exe
1584	InstallUtil.exe

Drops startup file 2 IoCs

Processes:

product details.scr

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\thurs.exe	product details.scr
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\thurs.exe	product details.scr

Loads dropped DLL 2 IoCs

Processes:

product details.scrthurs.exe

pid process

1500 product details.scr
560 thurs.exe
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

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

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

Data from Local System
T1005

Credentials in Files
T1081

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-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Windows\CurrentVersion\Run\thurs = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\Startup\\thurs.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

thurs.exe

description pid process target process

PID 560 set thread context of 1584 560 thurs.exe InstallUtil.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 560 set thread context of 1584	560	thurs.exe	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

product details.scrthurs.exeInstallUtil.exe

pid	process
1500	product details.scr
1500	product details.scr
1500	product details.scr
560	thurs.exe
560	thurs.exe
560	thurs.exe
1584	InstallUtil.exe
1584	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

product details.scrthurs.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 1500 product details.scr
Token: SeDebugPrivilege 560 thurs.exe
Token: SeDebugPrivilege 1584 InstallUtil.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

InstallUtil.exe

pid process

1584 InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	1500	product details.scr
Token: SeDebugPrivilege	560	thurs.exe
Token: SeDebugPrivilege	1584	InstallUtil.exe

pid	process
1584	InstallUtil.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

product details.scrcmd.exethurs.exe

description	pid	process	target process
PID 1500 wrote to memory of 1492	1500	product details.scr	cmd.exe
PID 1500 wrote to memory of 1492	1500	product details.scr	cmd.exe
PID 1500 wrote to memory of 1492	1500	product details.scr	cmd.exe
PID 1500 wrote to memory of 1492	1500	product details.scr	cmd.exe
PID 1492 wrote to memory of 1360	1492	cmd.exe	reg.exe
PID 1492 wrote to memory of 1360	1492	cmd.exe	reg.exe
PID 1492 wrote to memory of 1360	1492	cmd.exe	reg.exe
PID 1492 wrote to memory of 1360	1492	cmd.exe	reg.exe
PID 1500 wrote to memory of 560	1500	product details.scr	thurs.exe
PID 1500 wrote to memory of 560	1500	product details.scr	thurs.exe
PID 1500 wrote to memory of 560	1500	product details.scr	thurs.exe
PID 1500 wrote to memory of 560	1500	product details.scr	thurs.exe
PID 560 wrote to memory of 1584	560	thurs.exe	InstallUtil.exe
PID 560 wrote to memory of 1584	560	thurs.exe	InstallUtil.exe
PID 560 wrote to memory of 1584	560	thurs.exe	InstallUtil.exe
PID 560 wrote to memory of 1584	560	thurs.exe	InstallUtil.exe
PID 560 wrote to memory of 1584	560	thurs.exe	InstallUtil.exe
PID 560 wrote to memory of 1584	560	thurs.exe	InstallUtil.exe
PID 560 wrote to memory of 1584	560	thurs.exe	InstallUtil.exe
PID 560 wrote to memory of 1584	560	thurs.exe	InstallUtil.exe
PID 560 wrote to memory of 1584	560	thurs.exe	InstallUtil.exe
PID 560 wrote to memory of 1584	560	thurs.exe	InstallUtil.exe
PID 560 wrote to memory of 1584	560	thurs.exe	InstallUtil.exe
PID 560 wrote to memory of 1584	560	thurs.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\product details.scr
"C:\Users\Admin\AppData\Local\Temp\product details.scr" /S
1⤵
- Drops startup file
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1500

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v thurs /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\thurs.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1492

C:\Windows\SysWOW64\reg.exe
REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v thurs /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\thurs.exe"
3⤵
- Adds Run key to start application
PID:1360

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\thurs.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\thurs.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:560

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1584

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\thurs.exe
MD5
0b658c8df4ef16787aeb36fd626d1eff

SHA1
81e2dc5c225e1a99689979d3b40407be49d282af

SHA256
a7c66c4f2c290ea9dfd03b06c9d196448e81a81dbf85f2e85b34858c5dcdb85d

SHA512
944525b19ff01074c071c432f565f7380e34e4ffe02796303b149ae01980f3407ed1c353124c453c920b88ed6bb32650a6a52babbff7d0670ac501698a071d0d

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\thurs.exe
MD5
0b658c8df4ef16787aeb36fd626d1eff

SHA1
81e2dc5c225e1a99689979d3b40407be49d282af

SHA256
a7c66c4f2c290ea9dfd03b06c9d196448e81a81dbf85f2e85b34858c5dcdb85d

SHA512
944525b19ff01074c071c432f565f7380e34e4ffe02796303b149ae01980f3407ed1c353124c453c920b88ed6bb32650a6a52babbff7d0670ac501698a071d0d

Download Submit
\Users\Admin\AppData\Local\Temp\InstallUtil.exe
MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\thurs.exe
MD5
0b658c8df4ef16787aeb36fd626d1eff

SHA1
81e2dc5c225e1a99689979d3b40407be49d282af

SHA256
a7c66c4f2c290ea9dfd03b06c9d196448e81a81dbf85f2e85b34858c5dcdb85d

SHA512
944525b19ff01074c071c432f565f7380e34e4ffe02796303b149ae01980f3407ed1c353124c453c920b88ed6bb32650a6a52babbff7d0670ac501698a071d0d

Download Submit
memory/560-6-0x0000000000000000-mapping.dmp

Download
memory/1360-4-0x0000000000000000-mapping.dmp

Download
memory/1492-3-0x0000000000000000-mapping.dmp

Download
memory/1500-1-0x0000000000000000-0x0000000000000000-disk.dmp

Download
memory/1584-14-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1584-15-0x0000000000446D1E-mapping.dmp

Download
memory/1584-17-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1584-18-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads