agenttesla | 3e0399c730996386f895fb276f727a0dd3095ae40c59ca11b56ed55ae8207285

General

Target

db45193c0f7beea46dda2ee72efa46a9_JaffaCakes118.exe
Size

553KB
MD5

db45193c0f7beea46dda2ee72efa46a9
SHA1

00a1877bcc8b94ab78e9e56b3df67bcbece186cd
SHA256

3e0399c730996386f895fb276f727a0dd3095ae40c59ca11b56ed55ae8207285
SHA512

c34260d0ae9e371eb6c6987f9ccae2db21cf3b239046812aad75887808cee6eda12501249c42c7ceb51fd45ef023fe4f44be6c896f864b7f0f460074877a2957
SSDEEP

12288:ksj4nN3zLB/4eym+XDCtdwpV1xijwwmxKUOJSZVoe3lvWRV:kCkN3H2eyj+tGp3wNiNpVoe3lvCV

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.flsrnidth.com
Port:
587
Username:
[email protected]
Password:
BZ^(npqQ6vPH

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral2/memory/924-13-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

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
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe
Key opened	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe
Key opened	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.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-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\YYtJku = "C:\\Users\\Admin\\AppData\\Roaming\\YYtJku\\YYtJku.exe"	vbc.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
31	api.ipify.org
32	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4880 set thread context of 924	4880	db45193c0f7beea46dda2ee72efa46a9_JaffaCakes118.exe	94

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	db45193c0f7beea46dda2ee72efa46a9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
4880	db45193c0f7beea46dda2ee72efa46a9_JaffaCakes118.exe
4880	db45193c0f7beea46dda2ee72efa46a9_JaffaCakes118.exe
4880	db45193c0f7beea46dda2ee72efa46a9_JaffaCakes118.exe
924	vbc.exe
924	vbc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4880	db45193c0f7beea46dda2ee72efa46a9_JaffaCakes118.exe
Token: SeDebugPrivilege	924	vbc.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4880 wrote to memory of 924	4880	db45193c0f7beea46dda2ee72efa46a9_JaffaCakes118.exe	94
PID 4880 wrote to memory of 924	4880	db45193c0f7beea46dda2ee72efa46a9_JaffaCakes118.exe	94
PID 4880 wrote to memory of 924	4880	db45193c0f7beea46dda2ee72efa46a9_JaffaCakes118.exe	94
PID 4880 wrote to memory of 924	4880	db45193c0f7beea46dda2ee72efa46a9_JaffaCakes118.exe	94
PID 4880 wrote to memory of 924	4880	db45193c0f7beea46dda2ee72efa46a9_JaffaCakes118.exe	94
PID 4880 wrote to memory of 924	4880	db45193c0f7beea46dda2ee72efa46a9_JaffaCakes118.exe	94
PID 4880 wrote to memory of 924	4880	db45193c0f7beea46dda2ee72efa46a9_JaffaCakes118.exe	94
PID 4880 wrote to memory of 924	4880	db45193c0f7beea46dda2ee72efa46a9_JaffaCakes118.exe	94

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe

C:\Users\Admin\AppData\Local\Temp\db45193c0f7beea46dda2ee72efa46a9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\db45193c0f7beea46dda2ee72efa46a9_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:4880
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "{path}"
  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:924

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scripting

1

T1064

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

Scripting

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/924-13-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/924-23-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/924-22-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/924-21-0x0000000006630000-0x0000000006680000-memory.dmp

Filesize
320KB

Download
memory/924-19-0x00000000060E0000-0x0000000006146000-memory.dmp

Filesize
408KB

Download
memory/924-18-0x0000000005370000-0x0000000005388000-memory.dmp

Filesize
96KB

Download
memory/924-17-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/924-16-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/4880-5-0x0000000004A20000-0x0000000004A2A000-memory.dmp

Filesize
40KB

Download
memory/4880-7-0x00000000055F0000-0x0000000005944000-memory.dmp

Filesize
3.3MB

Download
memory/4880-10-0x0000000005D60000-0x0000000005DCE000-memory.dmp

Filesize
440KB

Download
memory/4880-11-0x0000000005E70000-0x0000000005F0C000-memory.dmp

Filesize
624KB

Download
memory/4880-12-0x0000000005DD0000-0x0000000005E30000-memory.dmp

Filesize
384KB

Download
memory/4880-8-0x00000000749DE000-0x00000000749DF000-memory.dmp

Filesize
4KB

Download
memory/4880-15-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/4880-9-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/4880-6-0x0000000004A60000-0x0000000004A6A000-memory.dmp

Filesize
40KB

Download
memory/4880-0-0x00000000749DE000-0x00000000749DF000-memory.dmp

Filesize
4KB

Download
memory/4880-4-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/4880-3-0x0000000004960000-0x00000000049F2000-memory.dmp

Filesize
584KB

Download
memory/4880-2-0x0000000005040000-0x00000000055E4000-memory.dmp

Filesize
5.6MB

Download
memory/4880-1-0x0000000000070000-0x0000000000100000-memory.dmp

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads