agenttesla | 82fba18f0fd8294ba8bcce339a2380af71c4f1b8bc4f528d886ac0e5ed1e91f9

General

Target

Catalog.exe
Size

469KB
MD5

9163e51565ee60a00548fca94dc2a8e7
SHA1

44d568b4e7d99bf1c89dfc18f293986836d1c9e2
SHA256

d2a772260616ccc61555ef2c4e08d53bd33c07997e63250e6ff7e1bdc9c96238
SHA512

6ca17baa8753ef9db2f0a380cbfae6d0a8fca75aab0e9a071b951a2808aea21d1bc192b45b1bcec44324c40faa887e2cfe93538518a2173903957a2f6048023d

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
K$pbkEK0

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/636-63-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/636-64-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/636-65-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/636-66-0x0000000000446DFE-mapping.dmp	family_agenttesla
behavioral1/memory/636-68-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/636-70-0x0000000000400000-0x000000000044C000-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:

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

Catalog.exe

description pid process target process

PID 1064 set thread context of 636 1064 Catalog.exe Catalog.exe
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

1792 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Catalog.exe

pid process

636 Catalog.exe
636 Catalog.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Catalog.exe

description pid process

Token: SeDebugPrivilege 636 Catalog.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Catalog.exe

pid process

636 Catalog.exe

description	pid	process	target process
PID 1064 set thread context of 636	1064	Catalog.exe	Catalog.exe

pid	process
1792	schtasks.exe

pid	process
636	Catalog.exe
636	Catalog.exe

description	pid	process
Token: SeDebugPrivilege	636	Catalog.exe

pid	process
636	Catalog.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

Catalog.exe

description	pid	process	target process
PID 1064 wrote to memory of 1792	1064	Catalog.exe	schtasks.exe
PID 1064 wrote to memory of 1792	1064	Catalog.exe	schtasks.exe
PID 1064 wrote to memory of 1792	1064	Catalog.exe	schtasks.exe
PID 1064 wrote to memory of 1792	1064	Catalog.exe	schtasks.exe
PID 1064 wrote to memory of 636	1064	Catalog.exe	Catalog.exe
PID 1064 wrote to memory of 636	1064	Catalog.exe	Catalog.exe
PID 1064 wrote to memory of 636	1064	Catalog.exe	Catalog.exe
PID 1064 wrote to memory of 636	1064	Catalog.exe	Catalog.exe
PID 1064 wrote to memory of 636	1064	Catalog.exe	Catalog.exe
PID 1064 wrote to memory of 636	1064	Catalog.exe	Catalog.exe
PID 1064 wrote to memory of 636	1064	Catalog.exe	Catalog.exe
PID 1064 wrote to memory of 636	1064	Catalog.exe	Catalog.exe
PID 1064 wrote to memory of 636	1064	Catalog.exe	Catalog.exe

outlook_office_path 1 IoCs

Processes:

Catalog.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	Catalog.exe

outlook_win_path 1 IoCs

Processes:

Catalog.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	Catalog.exe

C:\Users\Admin\AppData\Local\Temp\Catalog.exe
"C:\Users\Admin\AppData\Local\Temp\Catalog.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1064

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QkmDKqwRhZQh" /XML "C:\Users\Admin\AppData\Local\Temp\tmp35C1.tmp"
2⤵
- Creates scheduled task(s)
PID:1792

C:\Users\Admin\AppData\Local\Temp\Catalog.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:636

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\tmp35C1.tmp
Filesize
1KB

MD5
62d4f313465a34d67124d9ef9e0d795c

SHA1
c8ee2b0101d644d60b1967a31c9291af6fb8610b

SHA256
f6a3a961e1c55a31cf5f483f1b6befe16318b1c643fb886a2dc828793f63a767

SHA512
73c1891376b38d6e58ee57635b2736a5c364e1a82c311a8d1660d54a0a1a4ed5aebdb688164d09cd587fc2f6fcc2de1bad3c2d6f9fa8013f3a4861645a1ad365

Download Submit
memory/636-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/636-60-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/636-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/636-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/636-65-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/636-66-0x0000000000446DFE-mapping.dmp

Download
memory/636-68-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/636-70-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1064-56-0x0000000000AD0000-0x0000000000B24000-memory.dmp

Filesize
336KB

Download
memory/1064-57-0x0000000075DE1000-0x0000000075DE3000-memory.dmp

Filesize
8KB

Download
memory/1064-55-0x0000000000870000-0x0000000000878000-memory.dmp

Filesize
32KB

Download
memory/1064-54-0x0000000000FE0000-0x000000000105C000-memory.dmp

Filesize
496KB

Download
memory/1792-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads