agenttesla | 708e198608b5b463224c3fb77fcf708b845d0c7b5dbc6e9cab9e185c489be089

General

Target

AgentTestla.exe
Size

928KB
MD5

80b51e872031a2befeb9a0a13e6fc480
SHA1

caebbab5349f57d92182ce56ef4bf71ea60226a7
SHA256

708e198608b5b463224c3fb77fcf708b845d0c7b5dbc6e9cab9e185c489be089
SHA512

12e9db89be76788d238f8a7f3114534b50b953b9ef619f84b0a124fba77f5e7d4aa00ae8f6ac3fdb16ecd1398950d6bdadfa43e9ec59b6d59667df5ac3d60879
SSDEEP

12288:QieE+Q3mJyrf3iKXlrsfPO/l3Zn+aFpNUe2PPaEEaCh:QieE+5UrfvVg+Rd+afNH2PxEZh

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.godforeu.com
Port:
587
Username:
[email protected]
Password:
O8k#Pz4sk:w_

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral2/memory/1560-17-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	AgentTestla.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 2 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
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-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AgentTestla.exe
Key opened	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AgentTestla.exe
Key opened	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AgentTestla.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3220 set thread context of 1560	3220	AgentTestla.exe	99

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	AgentTestla.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AgentTestla.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1104	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
3220	AgentTestla.exe
3220	AgentTestla.exe
3220	AgentTestla.exe
1560	AgentTestla.exe
1560	AgentTestla.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3220	AgentTestla.exe
Token: SeDebugPrivilege	1560	AgentTestla.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3220 wrote to memory of 1104	3220	AgentTestla.exe	96
PID 3220 wrote to memory of 1104	3220	AgentTestla.exe	96
PID 3220 wrote to memory of 1104	3220	AgentTestla.exe	96
PID 3220 wrote to memory of 3960	3220	AgentTestla.exe	98
PID 3220 wrote to memory of 3960	3220	AgentTestla.exe	98
PID 3220 wrote to memory of 3960	3220	AgentTestla.exe	98
PID 3220 wrote to memory of 1560	3220	AgentTestla.exe	99
PID 3220 wrote to memory of 1560	3220	AgentTestla.exe	99
PID 3220 wrote to memory of 1560	3220	AgentTestla.exe	99
PID 3220 wrote to memory of 1560	3220	AgentTestla.exe	99
PID 3220 wrote to memory of 1560	3220	AgentTestla.exe	99
PID 3220 wrote to memory of 1560	3220	AgentTestla.exe	99
PID 3220 wrote to memory of 1560	3220	AgentTestla.exe	99
PID 3220 wrote to memory of 1560	3220	AgentTestla.exe	99

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AgentTestla.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AgentTestla.exe

C:\Users\Admin\AppData\Local\Temp\AgentTestla.exe
"C:\Users\Admin\AppData\Local\Temp\AgentTestla.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3220
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\neHneiobyhcrJJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5EF4.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1104
- C:\Users\Admin\AppData\Local\Temp\AgentTestla.exe
  "C:\Users\Admin\AppData\Local\Temp\AgentTestla.exe"
  2⤵
  PID:3960
- C:\Users\Admin\AppData\Local\Temp\AgentTestla.exe
  "C:\Users\Admin\AppData\Local\Temp\AgentTestla.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1560

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

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

Query Registry

1

T1012

System Information Discovery

2

T1082

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\AgentTestla.exe.log

Filesize
1KB

MD5
17573558c4e714f606f997e5157afaac

SHA1
13e16e9415ceef429aaf124139671ebeca09ed23

SHA256
c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

SHA512
f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp5EF4.tmp

Filesize
1KB

MD5
d88e47dd5b65f184d2997d5f32599dab

SHA1
bd7d51fd1667d8717c34d1c65bffb76228539c3c

SHA256
e265a9282a6882243806b20fb428893b9341f7ab656716e791c8a88ab1f17757

SHA512
3c48ce905579352f2cde2623580c490fe1d1870fe746190a4ed5684690042a1b67761fd030e9dec16dd9c306eca3acc7d5a9fc448d92b2b4faa866e47a73dda0

Download Submit
memory/1560-23-0x00000000059B0000-0x00000000059C8000-memory.dmp

Filesize
96KB

Download
memory/1560-28-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/1560-17-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1560-27-0x0000000006470000-0x00000000064C0000-memory.dmp

Filesize
320KB

Download
memory/1560-26-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/1560-25-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/1560-24-0x0000000006250000-0x00000000062B6000-memory.dmp

Filesize
408KB

Download
memory/1560-22-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/1560-21-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/3220-4-0x0000000005620000-0x00000000056B2000-memory.dmp

Filesize
584KB

Download
memory/3220-11-0x0000000006530000-0x00000000065A2000-memory.dmp

Filesize
456KB

Download
memory/3220-3-0x0000000005B30000-0x00000000060D4000-memory.dmp

Filesize
5.6MB

Download
memory/3220-10-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/3220-20-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/3220-1-0x0000000000A70000-0x0000000000B5E000-memory.dmp

Filesize
952KB

Download
memory/3220-9-0x000000007505E000-0x000000007505F000-memory.dmp

Filesize
4KB

Download
memory/3220-0-0x000000007505E000-0x000000007505F000-memory.dmp

Filesize
4KB

Download
memory/3220-8-0x00000000057F0000-0x00000000057FA000-memory.dmp

Filesize
40KB

Download
memory/3220-7-0x0000000075050000-0x0000000075800000-memory.dmp

Filesize
7.7MB

Download
memory/3220-6-0x0000000005810000-0x0000000005866000-memory.dmp

Filesize
344KB

Download
memory/3220-5-0x0000000005610000-0x000000000561A000-memory.dmp

Filesize
40KB

Download
memory/3220-2-0x00000000054E0000-0x000000000557C000-memory.dmp

Filesize
624KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads