agenttesla | 4156d141ecd566aebb51846c4a8124c4f5923970d48cdfb53f6e3e37ca774268

General

Target

TRANSFER.scr
Size

571KB
MD5

b21c5e9a0e9846d44a674f7822c0a1f2
SHA1

de3807ac88680dcc6146c76db7a174e4411ab078
SHA256

f8489030f3c79639a56320cdd06179b2f3cf280824cd80d8b3c333c8aabd3d9f
SHA512

c5a18cf1dd2d3441f08445f585eddf63ebb179edcfd4470c147d16c6fe58ccf55bcf88d32884ca7a49e88354edd20c5193835e323e87edaed212b3232a20cfa8

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.northwestpowdercoating.co.uk
Port:
587
Username:
[email protected]
Password:
C^0z.^LxykTW

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/772-64-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/772-65-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/772-66-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/772-67-0x0000000000447ABE-mapping.dmp	family_agenttesla
behavioral1/memory/772-69-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/772-71-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

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:

TRANSFER.scr

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	TRANSFER.scr
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	TRANSFER.scr
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	TRANSFER.scr

Suspicious use of SetThreadContext 1 IoCs

Processes:

TRANSFER.scr

description pid process target process

PID 1092 set thread context of 772 1092 TRANSFER.scr TRANSFER.scr
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

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
T1053

Processes:

schtasks.exe

pid process

1068 schtasks.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

TRANSFER.scrTRANSFER.scr

pid process

1092 TRANSFER.scr
1092 TRANSFER.scr
1092 TRANSFER.scr
1092 TRANSFER.scr
772 TRANSFER.scr
772 TRANSFER.scr
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

TRANSFER.scrTRANSFER.scr

description pid process

Token: SeDebugPrivilege 1092 TRANSFER.scr
Token: SeDebugPrivilege 772 TRANSFER.scr
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

TRANSFER.scr

pid process

772 TRANSFER.scr

description	pid	process	target process
PID 1092 set thread context of 772	1092	TRANSFER.scr	TRANSFER.scr

pid	process
1068	schtasks.exe

pid	process
1092	TRANSFER.scr
1092	TRANSFER.scr
1092	TRANSFER.scr
1092	TRANSFER.scr
772	TRANSFER.scr
772	TRANSFER.scr

description	pid	process
Token: SeDebugPrivilege	1092	TRANSFER.scr
Token: SeDebugPrivilege	772	TRANSFER.scr

pid	process
772	TRANSFER.scr

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

TRANSFER.scr

description	pid	process	target process
PID 1092 wrote to memory of 1068	1092	TRANSFER.scr	schtasks.exe
PID 1092 wrote to memory of 1068	1092	TRANSFER.scr	schtasks.exe
PID 1092 wrote to memory of 1068	1092	TRANSFER.scr	schtasks.exe
PID 1092 wrote to memory of 1068	1092	TRANSFER.scr	schtasks.exe
PID 1092 wrote to memory of 2012	1092	TRANSFER.scr	TRANSFER.scr
PID 1092 wrote to memory of 2012	1092	TRANSFER.scr	TRANSFER.scr
PID 1092 wrote to memory of 2012	1092	TRANSFER.scr	TRANSFER.scr
PID 1092 wrote to memory of 2012	1092	TRANSFER.scr	TRANSFER.scr
PID 1092 wrote to memory of 772	1092	TRANSFER.scr	TRANSFER.scr
PID 1092 wrote to memory of 772	1092	TRANSFER.scr	TRANSFER.scr
PID 1092 wrote to memory of 772	1092	TRANSFER.scr	TRANSFER.scr
PID 1092 wrote to memory of 772	1092	TRANSFER.scr	TRANSFER.scr
PID 1092 wrote to memory of 772	1092	TRANSFER.scr	TRANSFER.scr
PID 1092 wrote to memory of 772	1092	TRANSFER.scr	TRANSFER.scr
PID 1092 wrote to memory of 772	1092	TRANSFER.scr	TRANSFER.scr
PID 1092 wrote to memory of 772	1092	TRANSFER.scr	TRANSFER.scr
PID 1092 wrote to memory of 772	1092	TRANSFER.scr	TRANSFER.scr

outlook_office_path 1 IoCs

Processes:

TRANSFER.scr

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	TRANSFER.scr

outlook_win_path 1 IoCs

Processes:

TRANSFER.scr

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	TRANSFER.scr

C:\Users\Admin\AppData\Local\Temp\TRANSFER.scr
"C:\Users\Admin\AppData\Local\Temp\TRANSFER.scr" /S
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1092

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\&startupname&" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4126.tmp"
2⤵
- Creates scheduled task(s)
PID:1068

C:\Users\Admin\AppData\Local\Temp\TRANSFER.scr
"{path}"
2⤵
PID:2012

C:\Users\Admin\AppData\Local\Temp\TRANSFER.scr
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:772

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

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\tmp4126.tmp
Filesize
1KB

MD5
d2aa72e1e0a9b7dcb81af5082540153a

SHA1
69f84c985fea812daa2fcfd1941a7d60facb4a7e

SHA256
c7a368be198491672c06e17b5626878b39a06de3bb28c0f028cc3aff46e43d3d

SHA512
541bbb3c838c14bfc2c91d1394a99a72f76ad8c3534da1215336ffdc3d63922d456af573ced60d5dff7f9e70fc1f7c8f3cd8ad997374356ecb784695ea312692

Download Submit
memory/772-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/772-66-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/772-71-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/772-69-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/772-67-0x0000000000447ABE-mapping.dmp

Download
memory/772-65-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/772-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/772-62-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1068-59-0x0000000000000000-mapping.dmp

Download
memory/1092-54-0x0000000000190000-0x0000000000224000-memory.dmp

Filesize
592KB

Download
memory/1092-55-0x0000000076571000-0x0000000076573000-memory.dmp

Filesize
8KB

Download
memory/1092-56-0x0000000000410000-0x000000000041A000-memory.dmp

Filesize
40KB

Download
memory/1092-58-0x00000000006C0000-0x0000000000716000-memory.dmp

Filesize
344KB

Download
memory/1092-57-0x0000000004440000-0x00000000044B4000-memory.dmp

Filesize
464KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads