agenttesla | 791c27879e42834fdb2537f9e0be908112a74429f7a3b7ac62e8735a3b764951

General

Target

JaffaCakes118_43d51713fd393de6a97793c342d51b9b.exe
Size

482KB
MD5

43d51713fd393de6a97793c342d51b9b
SHA1

483cda88bfea3555de80f01d72aa4d52c4c6bdcf
SHA256

791c27879e42834fdb2537f9e0be908112a74429f7a3b7ac62e8735a3b764951
SHA512

c5d5e86d074caf9a440cabddc6bc5f839b35c0fad62ce8dc382d43d96f9208cbcc7a94b918bb6c314606ff3fe286575a611460401f4367f9c3f3cdd3b1491d32
SSDEEP

12288:wuGIRivaKUsVnXch22zOhmY3lvVU7JtIq:E+yXcv6kZ7JtIq

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.penavico--cz.com
Port:
587
Username:
[email protected]
Password:
Fq$L%J((!6

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral2/memory/4072-9-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	JaffaCakes118_43d51713fd393de6a97793c342d51b9b.exe

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-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_43d51713fd393de6a97793c342d51b9b.exe
Key opened	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_43d51713fd393de6a97793c342d51b9b.exe
Key opened	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_43d51713fd393de6a97793c342d51b9b.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2192 set thread context of 4072	2192	JaffaCakes118_43d51713fd393de6a97793c342d51b9b.exe	84

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 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_43d51713fd393de6a97793c342d51b9b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_43d51713fd393de6a97793c342d51b9b.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4072	JaffaCakes118_43d51713fd393de6a97793c342d51b9b.exe
4072	JaffaCakes118_43d51713fd393de6a97793c342d51b9b.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2192	JaffaCakes118_43d51713fd393de6a97793c342d51b9b.exe
Token: SeDebugPrivilege	4072	JaffaCakes118_43d51713fd393de6a97793c342d51b9b.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2192 wrote to memory of 4072	2192	JaffaCakes118_43d51713fd393de6a97793c342d51b9b.exe	84
PID 2192 wrote to memory of 4072	2192	JaffaCakes118_43d51713fd393de6a97793c342d51b9b.exe	84
PID 2192 wrote to memory of 4072	2192	JaffaCakes118_43d51713fd393de6a97793c342d51b9b.exe	84
PID 2192 wrote to memory of 4072	2192	JaffaCakes118_43d51713fd393de6a97793c342d51b9b.exe	84
PID 2192 wrote to memory of 4072	2192	JaffaCakes118_43d51713fd393de6a97793c342d51b9b.exe	84
PID 2192 wrote to memory of 4072	2192	JaffaCakes118_43d51713fd393de6a97793c342d51b9b.exe	84
PID 2192 wrote to memory of 4072	2192	JaffaCakes118_43d51713fd393de6a97793c342d51b9b.exe	84
PID 2192 wrote to memory of 4072	2192	JaffaCakes118_43d51713fd393de6a97793c342d51b9b.exe	84

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_43d51713fd393de6a97793c342d51b9b.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_43d51713fd393de6a97793c342d51b9b.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_43d51713fd393de6a97793c342d51b9b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_43d51713fd393de6a97793c342d51b9b.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2192
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_43d51713fd393de6a97793c342d51b9b.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_43d51713fd393de6a97793c342d51b9b.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:4072

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

4

T1552

Credentials In Files

4

T1552.001

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

Replay Monitor

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Downloads

memory/2192-8-0x0000000075080000-0x0000000075830000-memory.dmp

Filesize
7.7MB

Download
memory/2192-2-0x0000000005A20000-0x0000000005FC4000-memory.dmp

Filesize
5.6MB

Download
memory/2192-0-0x000000007508E000-0x000000007508F000-memory.dmp

Filesize
4KB

Download
memory/2192-13-0x0000000075080000-0x0000000075830000-memory.dmp

Filesize
7.7MB

Download
memory/2192-4-0x0000000005320000-0x0000000005386000-memory.dmp

Filesize
408KB

Download
memory/2192-5-0x0000000075080000-0x0000000075830000-memory.dmp

Filesize
7.7MB

Download
memory/2192-6-0x0000000005220000-0x000000000522A000-memory.dmp

Filesize
40KB

Download
memory/2192-7-0x000000007508E000-0x000000007508F000-memory.dmp

Filesize
4KB

Download
memory/2192-3-0x0000000005280000-0x0000000005312000-memory.dmp

Filesize
584KB

Download
memory/2192-1-0x00000000000D0000-0x000000000014E000-memory.dmp

Filesize
504KB

Download
memory/4072-17-0x0000000001400000-0x0000000001450000-memory.dmp

Filesize
320KB

Download
memory/4072-11-0x0000000075080000-0x0000000075830000-memory.dmp

Filesize
7.7MB

Download
memory/4072-12-0x0000000005600000-0x000000000569C000-memory.dmp

Filesize
624KB

Download
memory/4072-10-0x0000000075080000-0x0000000075830000-memory.dmp

Filesize
7.7MB

Download
memory/4072-14-0x00000000055D0000-0x00000000055E8000-memory.dmp

Filesize
96KB

Download
memory/4072-15-0x0000000075080000-0x0000000075830000-memory.dmp

Filesize
7.7MB

Download
memory/4072-16-0x0000000075080000-0x0000000075830000-memory.dmp

Filesize
7.7MB

Download
memory/4072-9-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download

Analysis

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