agenttesla | b045b7b993b005e1930ca50a9eb65df8b62ca29d1dfdbbb28ca6621384172908

General

Target

cceb139330512f9c7820a18f87b89062_JaffaCakes118.exe
Size

1.7MB
MD5

cceb139330512f9c7820a18f87b89062
SHA1

e7fb7ee6e060b98b8e5823490aea1015798406fd
SHA256

b045b7b993b005e1930ca50a9eb65df8b62ca29d1dfdbbb28ca6621384172908
SHA512

5594cf5903b58c934ee33c2421e9256a0c5f452d1a9e2521d7ad02b36560fda37caf1f2a637628673273295ccb5303dd6faac4cc3db6ad7f17059998d8700d49
SSDEEP

3072:fVFweCE25tXJ69MXGxjwJBIB6HrUwH3wgbqw7C4wRz/YR7VwwNxC3XrcHwqX0AQr:t

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
Dollarbills1234

Signatures

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

AgentTesla payload 5 IoCs

resource	yara_rule
behavioral1/memory/3032-6-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/3032-7-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/3032-10-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/3032-12-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/3032-14-0x0000000000400000-0x000000000043C000-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
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-1-5-21-2257386474-3982792636-3902186748-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cceb139330512f9c7820a18f87b89062_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cceb139330512f9c7820a18f87b89062_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cceb139330512f9c7820a18f87b89062_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1752 set thread context of 3032	1752	cceb139330512f9c7820a18f87b89062_JaffaCakes118.exe	30

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	cceb139330512f9c7820a18f87b89062_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cceb139330512f9c7820a18f87b89062_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3032	cceb139330512f9c7820a18f87b89062_JaffaCakes118.exe
3032	cceb139330512f9c7820a18f87b89062_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3032	cceb139330512f9c7820a18f87b89062_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3032	cceb139330512f9c7820a18f87b89062_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1752 wrote to memory of 3032	1752	cceb139330512f9c7820a18f87b89062_JaffaCakes118.exe	30
PID 1752 wrote to memory of 3032	1752	cceb139330512f9c7820a18f87b89062_JaffaCakes118.exe	30
PID 1752 wrote to memory of 3032	1752	cceb139330512f9c7820a18f87b89062_JaffaCakes118.exe	30
PID 1752 wrote to memory of 3032	1752	cceb139330512f9c7820a18f87b89062_JaffaCakes118.exe	30
PID 1752 wrote to memory of 3032	1752	cceb139330512f9c7820a18f87b89062_JaffaCakes118.exe	30
PID 1752 wrote to memory of 3032	1752	cceb139330512f9c7820a18f87b89062_JaffaCakes118.exe	30
PID 1752 wrote to memory of 3032	1752	cceb139330512f9c7820a18f87b89062_JaffaCakes118.exe	30
PID 1752 wrote to memory of 3032	1752	cceb139330512f9c7820a18f87b89062_JaffaCakes118.exe	30
PID 1752 wrote to memory of 3032	1752	cceb139330512f9c7820a18f87b89062_JaffaCakes118.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cceb139330512f9c7820a18f87b89062_JaffaCakes118.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cceb139330512f9c7820a18f87b89062_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\cceb139330512f9c7820a18f87b89062_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cceb139330512f9c7820a18f87b89062_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1752
- C:\Users\Admin\AppData\Local\Temp\cceb139330512f9c7820a18f87b89062_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\cceb139330512f9c7820a18f87b89062_JaffaCakes118.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:3032

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

Replay Monitor

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Downloads

memory/1752-0-0x00000000743EE000-0x00000000743EF000-memory.dmp

Filesize
4KB

Download
memory/1752-1-0x0000000000EB0000-0x000000000105E000-memory.dmp

Filesize
1.7MB

Download
memory/1752-2-0x00000000743E0000-0x0000000074ACE000-memory.dmp

Filesize
6.9MB

Download
memory/1752-3-0x0000000000310000-0x0000000000352000-memory.dmp

Filesize
264KB

Download
memory/1752-17-0x00000000743E0000-0x0000000074ACE000-memory.dmp

Filesize
6.9MB

Download
memory/3032-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3032-16-0x00000000743E0000-0x0000000074ACE000-memory.dmp

Filesize
6.9MB

Download
memory/3032-7-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3032-5-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3032-10-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3032-12-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3032-14-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3032-6-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3032-15-0x00000000743E0000-0x0000000074ACE000-memory.dmp

Filesize
6.9MB

Download
memory/3032-4-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3032-18-0x00000000743E0000-0x0000000074ACE000-memory.dmp

Filesize
6.9MB

Download
memory/3032-19-0x00000000743E0000-0x0000000074ACE000-memory.dmp

Filesize
6.9MB

Download
memory/3032-20-0x00000000743E0000-0x0000000074ACE000-memory.dmp

Filesize
6.9MB

Download
memory/3032-21-0x00000000743E0000-0x0000000074ACE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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