agenttesla | eb1787166fb170e5c3b3c0761d22b2263bb86361bab75d2cad1ebf1d8395a1dd

General

Target

JaffaCakes118_8fae956cfdd27697a8745eabf8bcb1b7.exe
Size

443KB
MD5

8fae956cfdd27697a8745eabf8bcb1b7
SHA1

8d1d36677c019a278c424fce5d82757c28988dda
SHA256

eb1787166fb170e5c3b3c0761d22b2263bb86361bab75d2cad1ebf1d8395a1dd
SHA512

357e737f3bd4336ef6d62a37e36b7099e847818b2098691014bca69913a84e2416e88adea6e750b93fc0d9505d5c8faaeb999e039d57792ced75760791dac138
SSDEEP

12288:FzPTJfRIjYHCGXy0hF9+wKEJwksvJnc/xBY:JPTJfRIjYfZhFQeJKqb

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:
C%)%GWZe9

Signatures

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

AgentTesla payload 5 IoCs

resource	yara_rule
behavioral1/memory/2604-17-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2604-13-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2604-11-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2604-23-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2604-19-0x0000000000400000-0x000000000043C000-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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_8fae956cfdd27697a8745eabf8bcb1b7.exe
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_8fae956cfdd27697a8745eabf8bcb1b7.exe
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_8fae956cfdd27697a8745eabf8bcb1b7.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2232 set thread context of 2604	2232	JaffaCakes118_8fae956cfdd27697a8745eabf8bcb1b7.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	JaffaCakes118_8fae956cfdd27697a8745eabf8bcb1b7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_8fae956cfdd27697a8745eabf8bcb1b7.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2604	JaffaCakes118_8fae956cfdd27697a8745eabf8bcb1b7.exe
2604	JaffaCakes118_8fae956cfdd27697a8745eabf8bcb1b7.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2604	JaffaCakes118_8fae956cfdd27697a8745eabf8bcb1b7.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 2604	2232	JaffaCakes118_8fae956cfdd27697a8745eabf8bcb1b7.exe	30
PID 2232 wrote to memory of 2604	2232	JaffaCakes118_8fae956cfdd27697a8745eabf8bcb1b7.exe	30
PID 2232 wrote to memory of 2604	2232	JaffaCakes118_8fae956cfdd27697a8745eabf8bcb1b7.exe	30
PID 2232 wrote to memory of 2604	2232	JaffaCakes118_8fae956cfdd27697a8745eabf8bcb1b7.exe	30
PID 2232 wrote to memory of 2604	2232	JaffaCakes118_8fae956cfdd27697a8745eabf8bcb1b7.exe	30
PID 2232 wrote to memory of 2604	2232	JaffaCakes118_8fae956cfdd27697a8745eabf8bcb1b7.exe	30
PID 2232 wrote to memory of 2604	2232	JaffaCakes118_8fae956cfdd27697a8745eabf8bcb1b7.exe	30
PID 2232 wrote to memory of 2604	2232	JaffaCakes118_8fae956cfdd27697a8745eabf8bcb1b7.exe	30
PID 2232 wrote to memory of 2604	2232	JaffaCakes118_8fae956cfdd27697a8745eabf8bcb1b7.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_8fae956cfdd27697a8745eabf8bcb1b7.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_8fae956cfdd27697a8745eabf8bcb1b7.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8fae956cfdd27697a8745eabf8bcb1b7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8fae956cfdd27697a8745eabf8bcb1b7.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8fae956cfdd27697a8745eabf8bcb1b7.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8fae956cfdd27697a8745eabf8bcb1b7.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:2604

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/2232-0-0x0000000074E1E000-0x0000000074E1F000-memory.dmp

Filesize
4KB

Download
memory/2232-1-0x00000000012F0000-0x0000000001366000-memory.dmp

Filesize
472KB

Download
memory/2232-2-0x0000000074E10000-0x00000000754FE000-memory.dmp

Filesize
6.9MB

Download
memory/2232-3-0x00000000003F0000-0x00000000003FE000-memory.dmp

Filesize
56KB

Download
memory/2232-4-0x0000000074E1E000-0x0000000074E1F000-memory.dmp

Filesize
4KB

Download
memory/2232-5-0x0000000074E10000-0x00000000754FE000-memory.dmp

Filesize
6.9MB

Download
memory/2232-6-0x0000000004E60000-0x0000000004EC0000-memory.dmp

Filesize
384KB

Download
memory/2232-22-0x0000000074E10000-0x00000000754FE000-memory.dmp

Filesize
6.9MB

Download
memory/2604-13-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2604-25-0x0000000074E10000-0x00000000754FE000-memory.dmp

Filesize
6.9MB

Download
memory/2604-17-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2604-11-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2604-9-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2604-7-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2604-23-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2604-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2604-24-0x0000000074E10000-0x00000000754FE000-memory.dmp

Filesize
6.9MB

Download
memory/2604-19-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2604-26-0x0000000074E10000-0x00000000754FE000-memory.dmp

Filesize
6.9MB

Download
memory/2604-27-0x0000000074E10000-0x00000000754FE000-memory.dmp

Filesize
6.9MB

Download
memory/2604-28-0x0000000074E10000-0x00000000754FE000-memory.dmp

Filesize
6.9MB

Download
memory/2604-29-0x0000000074E10000-0x00000000754FE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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