agenttesla | b9ac9a6dc4bce3231fc93ea237a4ab5251359e2de9d1beae7c49d7b2fafa9d93

General

Target

09000000090900.exe
Size

621KB
MD5

d4cad253b742d15c3ea69277217d231e
SHA1

37e71b04d5e59eb8e8ab34cf7d804b859602e644
SHA256

f6213927e615e82229f62b234b3ae3ae6466a01c741f62413a5c926ea59f14ea
SHA512

9d7bdd6ff2b3d520e17f5c7b1903a54cc63ab020a575e98b7dbb31956e8dab066a58cf53a0551a692f9b7ce28c8c57bf5d04ce3b8730b2a9cae94865c193a26b

Score

10^/10

agenttesla agilenet collection keylogger spyware stealer trojan

Malware Config

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/1764-54-0x0000000000BC0000-0x0000000000C60000-memory.dmp	family_agenttesla
behavioral1/memory/1188-63-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1188-64-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1188-65-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1188-66-0x000000000044761E-mapping.dmp	family_agenttesla
behavioral1/memory/1188-69-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1188-71-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Executes dropped EXE 1 IoCs

Processes:

InstallUtil.exe

pid process

1188 InstallUtil.exe
Loads dropped DLL 1 IoCs

Processes:

09000000090900.exe

pid process

1764 09000000090900.exe

pid	process
1188	InstallUtil.exe

pid	process
1764	09000000090900.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
behavioral1/memory/1764-55-0x0000000000300000-0x0000000000314000-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-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

09000000090900.exe

description pid process target process

PID 1764 set thread context of 1188 1764 09000000090900.exe InstallUtil.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

09000000090900.exeInstallUtil.exe

pid process

1764 09000000090900.exe
1764 09000000090900.exe
1764 09000000090900.exe
1188 InstallUtil.exe
1188 InstallUtil.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

09000000090900.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 1764 09000000090900.exe
Token: SeDebugPrivilege 1188 InstallUtil.exe

description	pid	process	target process
PID 1764 set thread context of 1188	1764	09000000090900.exe	InstallUtil.exe

pid	process
1764	09000000090900.exe
1764	09000000090900.exe
1764	09000000090900.exe
1188	InstallUtil.exe
1188	InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	1764	09000000090900.exe
Token: SeDebugPrivilege	1188	InstallUtil.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

09000000090900.exe

description	pid	process	target process
PID 1764 wrote to memory of 1188	1764	09000000090900.exe	InstallUtil.exe
PID 1764 wrote to memory of 1188	1764	09000000090900.exe	InstallUtil.exe
PID 1764 wrote to memory of 1188	1764	09000000090900.exe	InstallUtil.exe
PID 1764 wrote to memory of 1188	1764	09000000090900.exe	InstallUtil.exe
PID 1764 wrote to memory of 1188	1764	09000000090900.exe	InstallUtil.exe
PID 1764 wrote to memory of 1188	1764	09000000090900.exe	InstallUtil.exe
PID 1764 wrote to memory of 1188	1764	09000000090900.exe	InstallUtil.exe
PID 1764 wrote to memory of 1188	1764	09000000090900.exe	InstallUtil.exe
PID 1764 wrote to memory of 1188	1764	09000000090900.exe	InstallUtil.exe
PID 1764 wrote to memory of 1188	1764	09000000090900.exe	InstallUtil.exe
PID 1764 wrote to memory of 1188	1764	09000000090900.exe	InstallUtil.exe
PID 1764 wrote to memory of 1188	1764	09000000090900.exe	InstallUtil.exe

outlook_office_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\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-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\09000000090900.exe
"C:\Users\Admin\AppData\Local\Temp\09000000090900.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1764
- 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:1188

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

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/1188-66-0x000000000044761E-mapping.dmp

Download
memory/1188-65-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1188-73-0x0000000075BF1000-0x0000000075BF3000-memory.dmp

Filesize
8KB

Download
memory/1188-60-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1188-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1188-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1188-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1188-71-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1188-69-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1764-54-0x0000000000BC0000-0x0000000000C60000-memory.dmp

Filesize
640KB

Download
memory/1764-56-0x0000000000320000-0x0000000000328000-memory.dmp

Filesize
32KB

Download
memory/1764-58-0x0000000000350000-0x0000000000358000-memory.dmp

Filesize
32KB

Download
memory/1764-55-0x0000000000300000-0x0000000000314000-memory.dmp

Filesize
80KB

Download
memory/1764-57-0x0000000000340000-0x0000000000348000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads