agenttesla | c9cec3069cd9d21bf5ab0269b2b5ccc52d56e763cfe4c416906ab5b1c66782aa

General

Target

SWIFT.exe
Size

698KB
MD5

73444436aa2a69b9bb1b92a07476f612
SHA1

6984d9dc15660d5587b7d1c03c2b55884d1f7261
SHA256

ea815dc254189542fbf41ab0fd55823a66c8e5c71ad15f17737824e4a429c4db
SHA512

5b526970cae1e1591701ea139b47dc1a8900311e9e241171dde3d27b9449a15f79090490244bd92c15e488a523f9230d827eccb083e2802bb48a4dcb5f0a5511
SSDEEP

12288:TdIE/HK7z71Mbl4hRXdbQa1+vCP0EI5m8NEET50pYjTSm4MHPioG9wW9h/i:WX2blqHrCEloYj59

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.brimaq.com
Port:
587
Username:
[email protected]
Password:
brimaQ2012
Email To:
[email protected]

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/2252-10-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2252-16-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2252-12-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2252-18-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2252-20-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SWIFT.exe
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SWIFT.exe
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SWIFT.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1916 set thread context of 2252	1916	SWIFT.exe	31

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2252	SWIFT.exe
2252	SWIFT.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2252	SWIFT.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1916 wrote to memory of 2252	1916	SWIFT.exe	31
PID 1916 wrote to memory of 2252	1916	SWIFT.exe	31
PID 1916 wrote to memory of 2252	1916	SWIFT.exe	31
PID 1916 wrote to memory of 2252	1916	SWIFT.exe	31
PID 1916 wrote to memory of 2252	1916	SWIFT.exe	31
PID 1916 wrote to memory of 2252	1916	SWIFT.exe	31
PID 1916 wrote to memory of 2252	1916	SWIFT.exe	31
PID 1916 wrote to memory of 2252	1916	SWIFT.exe	31
PID 1916 wrote to memory of 2252	1916	SWIFT.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SWIFT.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SWIFT.exe

C:\Users\Admin\AppData\Local\Temp\SWIFT.exe
"C:\Users\Admin\AppData\Local\Temp\SWIFT.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1916
- C:\Users\Admin\AppData\Local\Temp\SWIFT.exe
  "C:\Users\Admin\AppData\Local\Temp\SWIFT.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:2252

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/1916-0-0x0000000074E8E000-0x0000000074E8F000-memory.dmp

Filesize
4KB

Download
memory/1916-1-0x0000000000FD0000-0x0000000001084000-memory.dmp

Filesize
720KB

Download
memory/1916-2-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/1916-3-0x0000000000AA0000-0x0000000000AB6000-memory.dmp

Filesize
88KB

Download
memory/1916-4-0x0000000074E8E000-0x0000000074E8F000-memory.dmp

Filesize
4KB

Download
memory/1916-5-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/1916-6-0x0000000005590000-0x0000000005630000-memory.dmp

Filesize
640KB

Download
memory/1916-7-0x0000000000C60000-0x0000000000C9C000-memory.dmp

Filesize
240KB

Download
memory/1916-22-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2252-10-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2252-21-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2252-16-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2252-12-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2252-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2252-18-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2252-20-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2252-9-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2252-8-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2252-23-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2252-24-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2252-25-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2252-26-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2252-27-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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