agenttesla | 3376d4ab8e5abf886effa831bca38c19fa3d14648fe36588292ff6e5661c820a

General

Target

Vergi makbuzu_00012299201101_20_10_2021.exe
Size

820KB
MD5

88eb10863f66d6530a67f570aea2f5f8
SHA1

b479a0e3baf9e2b6e2f2a4b0f8fa69bb38493af1
SHA256

3376d4ab8e5abf886effa831bca38c19fa3d14648fe36588292ff6e5661c820a
SHA512

540ee4ccf4247f71a64348ce3d2f705a2cd8bed5434a389bdc60011d7ff76f19a2120e9fb9d8e9ec9e01315b833b2c8a40d4d5ff6c22e895efac53f9dfadfaa9

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:
[email protected]
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/2456-128-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/2456-129-0x00000000004375BE-mapping.dmp	family_agenttesla
behavioral2/memory/2456-136-0x0000000005390000-0x000000000588E000-memory.dmp	family_agenttesla

Executes dropped EXE 1 IoCs

Processes:

InstallUtil.exe

pid process

2456 InstallUtil.exe

pid	process
2456	InstallUtil.exe

Obfuscated with Agile.Net obfuscator 2 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/2052-122-0x00000000065D0000-0x00000000065F1000-memory.dmp	agile_net
behavioral2/memory/2052-125-0x0000000005030000-0x000000000552E000-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-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Vergi makbuzu_00012299201101_20_10_2021.exe

description pid process target process

PID 2052 set thread context of 2456 2052 Vergi makbuzu_00012299201101_20_10_2021.exe InstallUtil.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Vergi makbuzu_00012299201101_20_10_2021.exeInstallUtil.exe

pid process

2052 Vergi makbuzu_00012299201101_20_10_2021.exe
2052 Vergi makbuzu_00012299201101_20_10_2021.exe
2456 InstallUtil.exe
2456 InstallUtil.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Vergi makbuzu_00012299201101_20_10_2021.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 2052 Vergi makbuzu_00012299201101_20_10_2021.exe
Token: SeDebugPrivilege 2456 InstallUtil.exe

description	pid	process	target process
PID 2052 set thread context of 2456	2052	Vergi makbuzu_00012299201101_20_10_2021.exe	InstallUtil.exe

pid	process
2052	Vergi makbuzu_00012299201101_20_10_2021.exe
2052	Vergi makbuzu_00012299201101_20_10_2021.exe
2456	InstallUtil.exe
2456	InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	2052	Vergi makbuzu_00012299201101_20_10_2021.exe
Token: SeDebugPrivilege	2456	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

Vergi makbuzu_00012299201101_20_10_2021.exe

description	pid	process	target process
PID 2052 wrote to memory of 2456	2052	Vergi makbuzu_00012299201101_20_10_2021.exe	InstallUtil.exe
PID 2052 wrote to memory of 2456	2052	Vergi makbuzu_00012299201101_20_10_2021.exe	InstallUtil.exe
PID 2052 wrote to memory of 2456	2052	Vergi makbuzu_00012299201101_20_10_2021.exe	InstallUtil.exe
PID 2052 wrote to memory of 2456	2052	Vergi makbuzu_00012299201101_20_10_2021.exe	InstallUtil.exe
PID 2052 wrote to memory of 2456	2052	Vergi makbuzu_00012299201101_20_10_2021.exe	InstallUtil.exe
PID 2052 wrote to memory of 2456	2052	Vergi makbuzu_00012299201101_20_10_2021.exe	InstallUtil.exe
PID 2052 wrote to memory of 2456	2052	Vergi makbuzu_00012299201101_20_10_2021.exe	InstallUtil.exe
PID 2052 wrote to memory of 2456	2052	Vergi makbuzu_00012299201101_20_10_2021.exe	InstallUtil.exe

outlook_office_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\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-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\Vergi makbuzu_00012299201101_20_10_2021.exe
"C:\Users\Admin\AppData\Local\Temp\Vergi makbuzu_00012299201101_20_10_2021.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2052

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:2456

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/2052-121-0x0000000005030000-0x000000000552E000-memory.dmp

Filesize
5.0MB

Download
memory/2052-127-0x0000000009900000-0x0000000009901000-memory.dmp

Filesize
4KB

Download
memory/2052-120-0x0000000005AD0000-0x0000000005AD1000-memory.dmp

Filesize
4KB

Download
memory/2052-115-0x00000000005F0000-0x00000000005F1000-memory.dmp

Filesize
4KB

Download
memory/2052-122-0x00000000065D0000-0x00000000065F1000-memory.dmp

Filesize
132KB

Download
memory/2052-123-0x0000000006670000-0x0000000006671000-memory.dmp

Filesize
4KB

Download
memory/2052-124-0x0000000006630000-0x0000000006631000-memory.dmp

Filesize
4KB

Download
memory/2052-125-0x0000000005030000-0x000000000552E000-memory.dmp

Filesize
5.0MB

Download
memory/2052-126-0x00000000072D0000-0x00000000072DB000-memory.dmp

Filesize
44KB

Download
memory/2052-119-0x0000000005170000-0x0000000005171000-memory.dmp

Filesize
4KB

Download
memory/2052-117-0x0000000005530000-0x0000000005531000-memory.dmp

Filesize
4KB

Download
memory/2052-118-0x00000000050D0000-0x00000000050D1000-memory.dmp

Filesize
4KB

Download
memory/2456-129-0x00000000004375BE-mapping.dmp

Download
memory/2456-128-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2456-136-0x0000000005390000-0x000000000588E000-memory.dmp

Filesize
5.0MB

Download
memory/2456-137-0x0000000005840000-0x0000000005841000-memory.dmp

Filesize
4KB

Download
memory/2456-140-0x00000000060E0000-0x00000000060E1000-memory.dmp

Filesize
4KB

Download
memory/2456-141-0x0000000005390000-0x000000000588E000-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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