agenttesla | 21b7e938db10135f3905243238d1cac0da6648068d0c6306e97835e2174cfdd9

General

Target

21b7e938db10135f3905243238d1cac0da6648068d0c6306e97835e2174cfdd9.exe
Size

1.4MB
MD5

29f86d5871cf63e0307b63a45851d9c3
SHA1

5188ed2381356f7147b7d7eb8cb308746797eb36
SHA256

21b7e938db10135f3905243238d1cac0da6648068d0c6306e97835e2174cfdd9
SHA512

c99cb8b2b517f04d435f58ee1c84e5fe335a2e3669d8a0e7dbdf7d162b6eed696a7f4c3e66c71023f29ca550f16f6408b94e09d8228999526e175d6f8302a0f3
SSDEEP

24576:AICHORgc8PxdTv1RIAhjLoamMiX4lNmZg0YxegPbUIDPP:Mnp/jLoyEkmZ9Y14

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.speedlineug.com
Port:
587
Username:
[email protected]
Password:
Speedline555

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.speedlineug.com
Port:
587
Username:
[email protected]
Password:
Speedline555
Email To:
[email protected]

Signatures

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

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	21b7e938db10135f3905243238d1cac0da6648068d0c6306e97835e2174cfdd9.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
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
T1552.001
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
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	21b7e938db10135f3905243238d1cac0da6648068d0c6306e97835e2174cfdd9.exe
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	21b7e938db10135f3905243238d1cac0da6648068d0c6306e97835e2174cfdd9.exe
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	21b7e938db10135f3905243238d1cac0da6648068d0c6306e97835e2174cfdd9.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4260 set thread context of 1040	4260	21b7e938db10135f3905243238d1cac0da6648068d0c6306e97835e2174cfdd9.exe	89

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	21b7e938db10135f3905243238d1cac0da6648068d0c6306e97835e2174cfdd9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	21b7e938db10135f3905243238d1cac0da6648068d0c6306e97835e2174cfdd9.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1040	21b7e938db10135f3905243238d1cac0da6648068d0c6306e97835e2174cfdd9.exe
1040	21b7e938db10135f3905243238d1cac0da6648068d0c6306e97835e2174cfdd9.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1040	21b7e938db10135f3905243238d1cac0da6648068d0c6306e97835e2174cfdd9.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4260 wrote to memory of 1040	4260	21b7e938db10135f3905243238d1cac0da6648068d0c6306e97835e2174cfdd9.exe	89
PID 4260 wrote to memory of 1040	4260	21b7e938db10135f3905243238d1cac0da6648068d0c6306e97835e2174cfdd9.exe	89
PID 4260 wrote to memory of 1040	4260	21b7e938db10135f3905243238d1cac0da6648068d0c6306e97835e2174cfdd9.exe	89
PID 4260 wrote to memory of 1040	4260	21b7e938db10135f3905243238d1cac0da6648068d0c6306e97835e2174cfdd9.exe	89
PID 4260 wrote to memory of 1040	4260	21b7e938db10135f3905243238d1cac0da6648068d0c6306e97835e2174cfdd9.exe	89
PID 4260 wrote to memory of 1040	4260	21b7e938db10135f3905243238d1cac0da6648068d0c6306e97835e2174cfdd9.exe	89
PID 4260 wrote to memory of 1040	4260	21b7e938db10135f3905243238d1cac0da6648068d0c6306e97835e2174cfdd9.exe	89
PID 4260 wrote to memory of 1040	4260	21b7e938db10135f3905243238d1cac0da6648068d0c6306e97835e2174cfdd9.exe	89

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	21b7e938db10135f3905243238d1cac0da6648068d0c6306e97835e2174cfdd9.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	21b7e938db10135f3905243238d1cac0da6648068d0c6306e97835e2174cfdd9.exe

C:\Users\Admin\AppData\Local\Temp\21b7e938db10135f3905243238d1cac0da6648068d0c6306e97835e2174cfdd9.exe
"C:\Users\Admin\AppData\Local\Temp\21b7e938db10135f3905243238d1cac0da6648068d0c6306e97835e2174cfdd9.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4260
- C:\Users\Admin\AppData\Local\Temp\21b7e938db10135f3905243238d1cac0da6648068d0c6306e97835e2174cfdd9.exe
  "{path}"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1040

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

5

T1552

Credentials In Files

4

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\21b7e938db10135f3905243238d1cac0da6648068d0c6306e97835e2174cfdd9.exe.log

Filesize
1KB

MD5
84e77a587d94307c0ac1357eb4d3d46f

SHA1
83cc900f9401f43d181207d64c5adba7a85edc1e

SHA256
e16024b092a026a9dc00df69d4b9bbcab7b2dc178dc5291fc308a1abc9304a99

SHA512
aefb5c62200b3ed97718d20a89990954d4d8acdc0a6a73c5a420f1bba619cb79e70c2cd0a579b9f52dc6b09e1de2cea6cd6cac4376cfee92d94e2c01d310f691

Download Submit
memory/1040-12-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1040-24-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/1040-23-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/1040-22-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/1040-21-0x0000000006830000-0x0000000006880000-memory.dmp

Filesize
320KB

Download
memory/1040-19-0x0000000006420000-0x0000000006486000-memory.dmp

Filesize
408KB

Download
memory/1040-18-0x0000000005800000-0x0000000005818000-memory.dmp

Filesize
96KB

Download
memory/1040-17-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/1040-15-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/4260-10-0x0000000007440000-0x00000000074C2000-memory.dmp

Filesize
520KB

Download
memory/4260-11-0x0000000009970000-0x00000000099AA000-memory.dmp

Filesize
232KB

Download
memory/4260-0-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

Filesize
4KB

Download
memory/4260-9-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/4260-8-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

Filesize
4KB

Download
memory/4260-16-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/4260-7-0x00000000059B0000-0x00000000059BA000-memory.dmp

Filesize
40KB

Download
memory/4260-5-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/4260-6-0x0000000005440000-0x000000000544A000-memory.dmp

Filesize
40KB

Download
memory/4260-4-0x0000000005600000-0x000000000569C000-memory.dmp

Filesize
624KB

Download
memory/4260-3-0x00000000054C0000-0x0000000005552000-memory.dmp

Filesize
584KB

Download
memory/4260-2-0x00000000059D0000-0x0000000005F74000-memory.dmp

Filesize
5.6MB

Download
memory/4260-1-0x00000000008E0000-0x0000000000A42000-memory.dmp

Filesize
1.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads