agenttesla | 7047b9a2b50a8fb360b3d2b53d647582e6b4e93d92b7e266327a01c2f4c4bdf1

General

Target

signed-contract.exe
Size

653KB
MD5

074ca5239f5111224c69bedcc6326cbb
SHA1

af87db11be8d347179e705ada666bbb3ac294087
SHA256

bc96a7521bd576710b531a2b2dd6d7f4b4a0854f6ef8285ec83e0515d27ff299
SHA512

6cea88864bd5451a104308821ad8560141afcdd93615aa270bcdf8412cbd0a4088b550101795f40976077ff7f520d74c169282b1c4c5277e687e12a534bc8f0c

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
9NJSzWzvhDYcb6b

Signatures

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

AgentTesla Payload 7 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1996-54-0x00000000003D0000-0x000000000047A000-memory.dmp	family_agenttesla
behavioral1/memory/1608-63-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1608-64-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1608-65-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1608-66-0x000000000044713E-mapping.dmp	family_agenttesla
behavioral1/memory/1608-69-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1608-71-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Executes dropped EXE 1 IoCs

Processes:

InstallUtil.exe

pid process

1608 InstallUtil.exe
Loads dropped DLL 1 IoCs

Processes:

signed-contract.exe

pid process

1996 signed-contract.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

pid	process
1608	InstallUtil.exe

pid	process
1996	signed-contract.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

signed-contract.exe

description pid process target process

PID 1996 set thread context of 1608 1996 signed-contract.exe InstallUtil.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

580 1996 WerFault.exe signed-contract.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

signed-contract.exeInstallUtil.exe

pid process

1996 signed-contract.exe
1996 signed-contract.exe
1996 signed-contract.exe
1608 InstallUtil.exe
1608 InstallUtil.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

signed-contract.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 1996 signed-contract.exe
Token: SeDebugPrivilege 1608 InstallUtil.exe

description	pid	process	target process
PID 1996 set thread context of 1608	1996	signed-contract.exe	InstallUtil.exe

pid	pid_target	process	target process
580	1996	WerFault.exe	signed-contract.exe

pid	process
1996	signed-contract.exe
1996	signed-contract.exe
1996	signed-contract.exe
1608	InstallUtil.exe
1608	InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	1996	signed-contract.exe
Token: SeDebugPrivilege	1608	InstallUtil.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

signed-contract.exe

description	pid	process	target process
PID 1996 wrote to memory of 1608	1996	signed-contract.exe	InstallUtil.exe
PID 1996 wrote to memory of 1608	1996	signed-contract.exe	InstallUtil.exe
PID 1996 wrote to memory of 1608	1996	signed-contract.exe	InstallUtil.exe
PID 1996 wrote to memory of 1608	1996	signed-contract.exe	InstallUtil.exe
PID 1996 wrote to memory of 1608	1996	signed-contract.exe	InstallUtil.exe
PID 1996 wrote to memory of 1608	1996	signed-contract.exe	InstallUtil.exe
PID 1996 wrote to memory of 1608	1996	signed-contract.exe	InstallUtil.exe
PID 1996 wrote to memory of 1608	1996	signed-contract.exe	InstallUtil.exe
PID 1996 wrote to memory of 1608	1996	signed-contract.exe	InstallUtil.exe
PID 1996 wrote to memory of 1608	1996	signed-contract.exe	InstallUtil.exe
PID 1996 wrote to memory of 1608	1996	signed-contract.exe	InstallUtil.exe
PID 1996 wrote to memory of 1608	1996	signed-contract.exe	InstallUtil.exe
PID 1996 wrote to memory of 580	1996	signed-contract.exe	WerFault.exe
PID 1996 wrote to memory of 580	1996	signed-contract.exe	WerFault.exe
PID 1996 wrote to memory of 580	1996	signed-contract.exe	WerFault.exe
PID 1996 wrote to memory of 580	1996	signed-contract.exe	WerFault.exe

outlook_office_path 1 IoCs

Processes:

InstallUtil.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	InstallUtil.exe

outlook_win_path 1 IoCs

Processes:

InstallUtil.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	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\signed-contract.exe
"C:\Users\Admin\AppData\Local\Temp\signed-contract.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1996

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
2⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1608

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1996 -s 796
2⤵
- Program crash
PID:580

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

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\InstallUtil.exe
Filesize
40KB

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
Filesize
40KB

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
\Users\Admin\AppData\Local\Temp\InstallUtil.exe
Filesize
40KB

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
memory/580-74-0x0000000000000000-mapping.dmp

Download
memory/1608-66-0x000000000044713E-mapping.dmp

Download
memory/1608-60-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1608-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1608-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1608-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1608-65-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1608-69-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1608-71-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1996-58-0x00000000007F0000-0x00000000007FA000-memory.dmp

Filesize
40KB

Download
memory/1996-57-0x0000000000690000-0x000000000069A000-memory.dmp

Filesize
40KB

Download
memory/1996-54-0x00000000003D0000-0x000000000047A000-memory.dmp

Filesize
680KB

Download
memory/1996-56-0x0000000000610000-0x0000000000630000-memory.dmp

Filesize
128KB

Download
memory/1996-55-0x0000000075841000-0x0000000075843000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads