agenttesla | 3da13730415f09c07260e029a2e36f2a9c92d9f85f86d0c2879659f28e2cf83a

General

Target

Docu_001220778003833_20102021.exe
Size

831KB
MD5

a1f4d1ffb6dbcc768b27f7b9fc8ab0bc
SHA1

843988c2715972c709d61afb101efd11f00be8ef
SHA256

3da13730415f09c07260e029a2e36f2a9c92d9f85f86d0c2879659f28e2cf83a
SHA512

4dd2cfd06accb0c4f49425304950baf79cea33d76fc8831cfa20c76a0e8cfd1a89ac623d6f3e13a146778fb8be516aa3425abfb760b544244f4af8e338afafb1

Score

10^/10

agenttesla agilenet collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.acpl.net.in
Port:
587
Username:
qcesd@acpl.net.in
Password:
Hi~M)?*G~-Zd

Signatures

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

AgentTesla Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3748-129-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/3748-130-0x00000000004375BE-mapping.dmp	family_agenttesla
behavioral2/memory/3748-137-0x0000000005790000-0x0000000005C8E000-memory.dmp	family_agenttesla

Executes dropped EXE 1 IoCs

Processes:

InstallUtil.exe

pid process

3748 InstallUtil.exe

pid	process
3748	InstallUtil.exe

Obfuscated with Agile.Net obfuscator 1 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

Processes:

resource	yara_rule
behavioral2/memory/3488-123-0x0000000006510000-0x0000000006531000-memory.dmp	agile_net

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:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Docu_001220778003833_20102021.exe

description pid process target process

PID 3488 set thread context of 3748 3488 Docu_001220778003833_20102021.exe InstallUtil.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Docu_001220778003833_20102021.exeInstallUtil.exe

pid process

3488 Docu_001220778003833_20102021.exe
3488 Docu_001220778003833_20102021.exe
3748 InstallUtil.exe
3748 InstallUtil.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Docu_001220778003833_20102021.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 3488 Docu_001220778003833_20102021.exe
Token: SeDebugPrivilege 3748 InstallUtil.exe

description	pid	process	target process
PID 3488 set thread context of 3748	3488	Docu_001220778003833_20102021.exe	InstallUtil.exe

pid	process
3488	Docu_001220778003833_20102021.exe
3488	Docu_001220778003833_20102021.exe
3748	InstallUtil.exe
3748	InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	3488	Docu_001220778003833_20102021.exe
Token: SeDebugPrivilege	3748	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

Docu_001220778003833_20102021.exe

description	pid	process	target process
PID 3488 wrote to memory of 3748	3488	Docu_001220778003833_20102021.exe	InstallUtil.exe
PID 3488 wrote to memory of 3748	3488	Docu_001220778003833_20102021.exe	InstallUtil.exe
PID 3488 wrote to memory of 3748	3488	Docu_001220778003833_20102021.exe	InstallUtil.exe
PID 3488 wrote to memory of 3748	3488	Docu_001220778003833_20102021.exe	InstallUtil.exe
PID 3488 wrote to memory of 3748	3488	Docu_001220778003833_20102021.exe	InstallUtil.exe
PID 3488 wrote to memory of 3748	3488	Docu_001220778003833_20102021.exe	InstallUtil.exe
PID 3488 wrote to memory of 3748	3488	Docu_001220778003833_20102021.exe	InstallUtil.exe
PID 3488 wrote to memory of 3748	3488	Docu_001220778003833_20102021.exe	InstallUtil.exe

outlook_office_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\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-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\Docu_001220778003833_20102021.exe
"C:\Users\Admin\AppData\Local\Temp\Docu_001220778003833_20102021.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3488

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:3748

Network

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
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
memory/3488-121-0x0000000005D10000-0x0000000005D11000-memory.dmp

Filesize
4KB

Download
memory/3488-127-0x00000000070F0000-0x00000000070FB000-memory.dmp

Filesize
44KB

Download
memory/3488-120-0x00000000051E0000-0x00000000051E1000-memory.dmp

Filesize
4KB

Download
memory/3488-115-0x0000000000670000-0x0000000000671000-memory.dmp

Filesize
4KB

Download
memory/3488-122-0x0000000006480000-0x0000000006481000-memory.dmp

Filesize
4KB

Download
memory/3488-123-0x0000000006510000-0x0000000006531000-memory.dmp

Filesize
132KB

Download
memory/3488-124-0x00000000065B0000-0x00000000065B1000-memory.dmp

Filesize
4KB

Download
memory/3488-125-0x0000000006570000-0x0000000006571000-memory.dmp

Filesize
4KB

Download
memory/3488-126-0x0000000005D11000-0x0000000005D12000-memory.dmp

Filesize
4KB

Download
memory/3488-119-0x0000000005140000-0x0000000005141000-memory.dmp

Filesize
4KB

Download
memory/3488-128-0x00000000096E0000-0x00000000096E1000-memory.dmp

Filesize
4KB

Download
memory/3488-117-0x00000000050A0000-0x00000000050A1000-memory.dmp

Filesize
4KB

Download
memory/3488-118-0x0000000005640000-0x0000000005641000-memory.dmp

Filesize
4KB

Download
memory/3748-130-0x00000000004375BE-mapping.dmp

Download
memory/3748-129-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3748-137-0x0000000005790000-0x0000000005C8E000-memory.dmp

Filesize
5.0MB

Download
memory/3748-138-0x00000000058D0000-0x00000000058D1000-memory.dmp

Filesize
4KB

Download
memory/3748-141-0x0000000005C80000-0x0000000005C81000-memory.dmp

Filesize
4KB

Download
memory/3748-142-0x0000000005790000-0x0000000005C8E000-memory.dmp

Filesize
5.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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