agenttesla | 6067bbc201b52eebb63d093b141fc2f077c599f3193193d15dcb417abc28d9e6

General

Target

fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe
Size

894KB
MD5

fc5ad4c3fa89721808fe2f27968dbad5
SHA1

d14fa7b1d4c4eedca11505bfe9da834991604bb4
SHA256

6067bbc201b52eebb63d093b141fc2f077c599f3193193d15dcb417abc28d9e6
SHA512

d35c02f8d5aca758aca2ac7a7249d68c3770f4175068b838af355d954aff2d32ff7bfa933093e0c989a27ef1b4946f83c0bcbce2661c05e3e45f1360d5fa4858
SSDEEP

12288:lyBL2jP6eP9K+iBBzoxiS+syJjUZTZ+SKX0uR0WTrb95ks6u:lyBL2jP6+KFjWv7K6ASeR/Tn9K

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.yitaipackaging.com
Port:
587
Username:
[email protected]
Password:
22799213

Signatures

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

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe

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-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.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-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows\CurrentVersion\Run\gKWBf = "C:\\Users\\Admin\\AppData\\Roaming\\gKWBf\\gKWBf.exe"	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2796 set thread context of 1828	2796	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe	32

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 4 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	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	REG.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
2312	REG.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2984	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2796	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe
2796	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe
2796	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe
2796	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe
1828	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe
1828	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2796	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe
Token: SeDebugPrivilege	1828	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2796 wrote to memory of 2984	2796	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe	30
PID 2796 wrote to memory of 2984	2796	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe	30
PID 2796 wrote to memory of 2984	2796	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe	30
PID 2796 wrote to memory of 2984	2796	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe	30
PID 2796 wrote to memory of 1828	2796	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe	32
PID 2796 wrote to memory of 1828	2796	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe	32
PID 2796 wrote to memory of 1828	2796	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe	32
PID 2796 wrote to memory of 1828	2796	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe	32
PID 2796 wrote to memory of 1828	2796	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe	32
PID 2796 wrote to memory of 1828	2796	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe	32
PID 2796 wrote to memory of 1828	2796	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe	32
PID 2796 wrote to memory of 1828	2796	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe	32
PID 2796 wrote to memory of 1828	2796	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe	32
PID 1828 wrote to memory of 2312	1828	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe	34
PID 1828 wrote to memory of 2312	1828	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe	34
PID 1828 wrote to memory of 2312	1828	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe	34
PID 1828 wrote to memory of 2312	1828	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe	34

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2796
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XkrjRuR" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE4B4.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2984
- C:\Users\Admin\AppData\Local\Temp\fc5ad4c3fa89721808fe2f27968dbad5_JaffaCakes118.exe
  "{path}"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  - outlook_win_path
  PID:1828
- - C:\Windows\SysWOW64\REG.exe
    REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System / v DisableTaskMgr / t REG_DWORD / d 1 / f
    3⤵
    - System Location Discovery: System Language Discovery
    - Modifies registry key
    PID:2312

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

2

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 Information Discovery

1

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpE4B4.tmp

Filesize
1KB

MD5
1d6ba26e038981376cc2fcbcc0221810

SHA1
bfa7b16b3a2ae1c33928c53e8348c0a27a7a0746

SHA256
a0f07a30811c8eb8fb928865bcd1c59ddc2e5d44f384c84773f9d0dbba63e013

SHA512
f590ca847189c4db40eb74a07468c7cbd483a87caf7113354c54d723d36d88f2bf7f69e26bc267ed8f6cce401f8371b9ad030b9f8c40680c6a532a4cdee9176d

Download Submit
memory/1828-18-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1828-27-0x00000000742F0000-0x00000000749DE000-memory.dmp

Filesize
6.9MB

Download
memory/1828-26-0x00000000742F0000-0x00000000749DE000-memory.dmp

Filesize
6.9MB

Download
memory/1828-24-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1828-25-0x00000000742F0000-0x00000000749DE000-memory.dmp

Filesize
6.9MB

Download
memory/1828-20-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1828-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1828-14-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1828-12-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1828-11-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1828-10-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2796-5-0x0000000005570000-0x0000000005612000-memory.dmp

Filesize
648KB

Download
memory/2796-6-0x0000000007E50000-0x0000000007EEA000-memory.dmp

Filesize
616KB

Download
memory/2796-0-0x00000000742FE000-0x00000000742FF000-memory.dmp

Filesize
4KB

Download
memory/2796-23-0x00000000742F0000-0x00000000749DE000-memory.dmp

Filesize
6.9MB

Download
memory/2796-4-0x00000000742F0000-0x00000000749DE000-memory.dmp

Filesize
6.9MB

Download
memory/2796-3-0x00000000742FE000-0x00000000742FF000-memory.dmp

Filesize
4KB

Download
memory/2796-2-0x00000000004A0000-0x00000000004B2000-memory.dmp

Filesize
72KB

Download
memory/2796-1-0x0000000000090000-0x0000000000176000-memory.dmp

Filesize
920KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads