agenttesla | 4654b562f79365bd2b7f9e4982b5ef699b11bb5b485b05b3a52baa29f1d40aa9

General

Target

JaffaCakes118_8246bc461a9e115ad82e0d7ea5115b41.exe
Size

506KB
MD5

8246bc461a9e115ad82e0d7ea5115b41
SHA1

5e3eb46c348359da79fe82d4b85dc8cf5c56951a
SHA256

4654b562f79365bd2b7f9e4982b5ef699b11bb5b485b05b3a52baa29f1d40aa9
SHA512

79bd3c3acebc2cfd1e4b9c57e1d08b3178ad2d3beb42ffa459ca307c6601ef38881ed4aa5b8e02c4a8f29b32e68f6f336bf2b92bbfb3f3320269d2e032408c59
SSDEEP

6144:Nw/nOK6Uqd2GhNXxfdjn/EGTZvrdyyy3UCANbZqDyFZOva5pFvuA+eWsqr+rXUSC:Nv3Ui2iNhJDNjdFyEJRZzFZL5fzFjmz

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
zxcvbnm12345

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/5040-11-0x0000000000400000-0x000000000043C000-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-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_8246bc461a9e115ad82e0d7ea5115b41.exe
Key opened	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_8246bc461a9e115ad82e0d7ea5115b41.exe
Key opened	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_8246bc461a9e115ad82e0d7ea5115b41.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nwlrFL = "C:\\Users\\Admin\\AppData\\Roaming\\nwlrFL\\nwlrFL.exe"	JaffaCakes118_8246bc461a9e115ad82e0d7ea5115b41.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4344 set thread context of 5040	4344	JaffaCakes118_8246bc461a9e115ad82e0d7ea5115b41.exe	91

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_8246bc461a9e115ad82e0d7ea5115b41.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_8246bc461a9e115ad82e0d7ea5115b41.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5040	JaffaCakes118_8246bc461a9e115ad82e0d7ea5115b41.exe
5040	JaffaCakes118_8246bc461a9e115ad82e0d7ea5115b41.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5040	JaffaCakes118_8246bc461a9e115ad82e0d7ea5115b41.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4344 wrote to memory of 5040	4344	JaffaCakes118_8246bc461a9e115ad82e0d7ea5115b41.exe	91
PID 4344 wrote to memory of 5040	4344	JaffaCakes118_8246bc461a9e115ad82e0d7ea5115b41.exe	91
PID 4344 wrote to memory of 5040	4344	JaffaCakes118_8246bc461a9e115ad82e0d7ea5115b41.exe	91
PID 4344 wrote to memory of 5040	4344	JaffaCakes118_8246bc461a9e115ad82e0d7ea5115b41.exe	91
PID 4344 wrote to memory of 5040	4344	JaffaCakes118_8246bc461a9e115ad82e0d7ea5115b41.exe	91
PID 4344 wrote to memory of 5040	4344	JaffaCakes118_8246bc461a9e115ad82e0d7ea5115b41.exe	91
PID 4344 wrote to memory of 5040	4344	JaffaCakes118_8246bc461a9e115ad82e0d7ea5115b41.exe	91
PID 4344 wrote to memory of 5040	4344	JaffaCakes118_8246bc461a9e115ad82e0d7ea5115b41.exe	91

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_8246bc461a9e115ad82e0d7ea5115b41.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_8246bc461a9e115ad82e0d7ea5115b41.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8246bc461a9e115ad82e0d7ea5115b41.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8246bc461a9e115ad82e0d7ea5115b41.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4344
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8246bc461a9e115ad82e0d7ea5115b41.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8246bc461a9e115ad82e0d7ea5115b41.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:5040

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\JaffaCakes118_8246bc461a9e115ad82e0d7ea5115b41.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/4344-10-0x0000000005FD0000-0x0000000006030000-memory.dmp

Filesize
384KB

Download
memory/4344-3-0x0000000004FE0000-0x0000000005072000-memory.dmp

Filesize
584KB

Download
memory/4344-1-0x0000000000550000-0x00000000005D4000-memory.dmp

Filesize
528KB

Download
memory/4344-4-0x0000000074A50000-0x0000000075200000-memory.dmp

Filesize
7.7MB

Download
memory/4344-5-0x0000000004FB0000-0x0000000004FBA000-memory.dmp

Filesize
40KB

Download
memory/4344-6-0x0000000005240000-0x000000000524E000-memory.dmp

Filesize
56KB

Download
memory/4344-7-0x0000000074A5E000-0x0000000074A5F000-memory.dmp

Filesize
4KB

Download
memory/4344-8-0x0000000074A50000-0x0000000075200000-memory.dmp

Filesize
7.7MB

Download
memory/4344-16-0x0000000074A50000-0x0000000075200000-memory.dmp

Filesize
7.7MB

Download
memory/4344-0-0x0000000074A5E000-0x0000000074A5F000-memory.dmp

Filesize
4KB

Download
memory/4344-9-0x0000000005D80000-0x0000000005E1C000-memory.dmp

Filesize
624KB

Download
memory/4344-2-0x00000000054F0000-0x0000000005A94000-memory.dmp

Filesize
5.6MB

Download
memory/5040-24-0x0000000074A50000-0x0000000075200000-memory.dmp

Filesize
7.7MB

Download
memory/5040-14-0x0000000074A50000-0x0000000075200000-memory.dmp

Filesize
7.7MB

Download
memory/5040-15-0x0000000074A50000-0x0000000075200000-memory.dmp

Filesize
7.7MB

Download
memory/5040-17-0x0000000005620000-0x0000000005638000-memory.dmp

Filesize
96KB

Download
memory/5040-18-0x00000000060D0000-0x0000000006136000-memory.dmp

Filesize
408KB

Download
memory/5040-19-0x0000000074A50000-0x0000000075200000-memory.dmp

Filesize
7.7MB

Download
memory/5040-20-0x0000000074A50000-0x0000000075200000-memory.dmp

Filesize
7.7MB

Download
memory/5040-22-0x0000000005070000-0x00000000050C0000-memory.dmp

Filesize
320KB

Download
memory/5040-23-0x0000000074A50000-0x0000000075200000-memory.dmp

Filesize
7.7MB

Download
memory/5040-11-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads