agenttesla | 195d2a0a39642615534776e0c4eaa04ad2ac825f077e51a0f7c9697af9eecb6d

General

Target

f12da21fcec70f5f7e7b35198259a88f_JaffaCakes118.exe
Size

569KB
MD5

f12da21fcec70f5f7e7b35198259a88f
SHA1

04dfa1d27b34aed412ac2b799f4b01675767f8b9
SHA256

195d2a0a39642615534776e0c4eaa04ad2ac825f077e51a0f7c9697af9eecb6d
SHA512

987f6fa83e310b1aa26c61258b7354d8423b86afedd554c5763f9a1014e1df613f5a79dde094ed06082a67dcbec7b6632d9e2f4864d779cb846519ff966d0b1a
SSDEEP

12288:zKCz/ZLpo1y90NxqACSV90vrA68dM4zUbY/nO0bfLohY:zKCzNpo1yWM9OivrB4IbYW0bfeY

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:
blessing@12345

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/3616-17-0x0000000000400000-0x000000000044E000-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

Executes dropped EXE 1 IoCs

pid	Process
4576	lwXLHeMvJxwmJGFDma.exe

Loads dropped DLL 1 IoCs

pid	Process
4576	lwXLHeMvJxwmJGFDma.exe

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 2 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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	f12da21fcec70f5f7e7b35198259a88f_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4576 set thread context of 3616	4576	lwXLHeMvJxwmJGFDma.exe	86

System Location Discovery: System Language Discovery 1 TTPs 3 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	lwXLHeMvJxwmJGFDma.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f12da21fcec70f5f7e7b35198259a88f_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3616	RegAsm.exe
3616	RegAsm.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4576	lwXLHeMvJxwmJGFDma.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3616	RegAsm.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3116 wrote to memory of 4576	3116	f12da21fcec70f5f7e7b35198259a88f_JaffaCakes118.exe	83
PID 3116 wrote to memory of 4576	3116	f12da21fcec70f5f7e7b35198259a88f_JaffaCakes118.exe	83
PID 3116 wrote to memory of 4576	3116	f12da21fcec70f5f7e7b35198259a88f_JaffaCakes118.exe	83
PID 4576 wrote to memory of 3616	4576	lwXLHeMvJxwmJGFDma.exe	86
PID 4576 wrote to memory of 3616	4576	lwXLHeMvJxwmJGFDma.exe	86
PID 4576 wrote to memory of 3616	4576	lwXLHeMvJxwmJGFDma.exe	86
PID 4576 wrote to memory of 3616	4576	lwXLHeMvJxwmJGFDma.exe	86

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\f12da21fcec70f5f7e7b35198259a88f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f12da21fcec70f5f7e7b35198259a88f_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3116
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\lwXLHeMvJxwmJGFDma.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\lwXLHeMvJxwmJGFDma.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:4576
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    - Accesses Microsoft Outlook profiles
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:3616

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

2

T1552

Credentials In Files

2

T1552.001

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\lwXLHeMvJxwmJGFDma.exe

Filesize
408KB

MD5
ee963353d61ada115914ccd1af726ad0

SHA1
ad4300872983e2378496b3fb9cbe7bbc05195d37

SHA256
defa8046c7c8add1e2263ca620e95351c7cf6d02d0bbc74c924134dd96f0f891

SHA512
4ea5c3b07b811c2e972b9440c6ce0d9c5eff357a6ee6865fb82022223cf69daa5695c3f52be0ee1adf560cd4e17179fa59541090b533101c093f4b10dc209fb5

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\lwXLHeMvJxwmJGFDz.dll

Filesize
10KB

MD5
8c442dbb5387acdedd38684f969e1bfa

SHA1
f6e6397777bbbc634ded67f72e76297184d2504d

SHA256
cd0b4059e9ae095b50678e1d402f073a7f4f5f7e6ea1b3b115bdaf35e9353f02

SHA512
c6f0e6b74df37a1c640a08b5ac9f5b0e9c77e4aacaf05630e2a602cf145e65a71f122b8f8f792faea19834b556d210597e809b0329a35252f73ba2fa2534c58a

Download Submit
memory/3616-23-0x0000000074A70000-0x0000000075220000-memory.dmp

Filesize
7.7MB

Download
memory/3616-26-0x0000000005DA0000-0x0000000005E06000-memory.dmp

Filesize
408KB

Download
memory/3616-30-0x0000000074A70000-0x0000000075220000-memory.dmp

Filesize
7.7MB

Download
memory/3616-29-0x0000000074A70000-0x0000000075220000-memory.dmp

Filesize
7.7MB

Download
memory/3616-28-0x0000000006720000-0x000000000672A000-memory.dmp

Filesize
40KB

Download
memory/3616-27-0x00000000064A0000-0x00000000064F0000-memory.dmp

Filesize
320KB

Download
memory/3616-25-0x0000000005730000-0x0000000005748000-memory.dmp

Filesize
96KB

Download
memory/3616-24-0x0000000005240000-0x00000000052DC000-memory.dmp

Filesize
624KB

Download
memory/3616-17-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3616-21-0x00000000057F0000-0x0000000005D94000-memory.dmp

Filesize
5.6MB

Download
memory/3616-22-0x0000000074A70000-0x0000000075220000-memory.dmp

Filesize
7.7MB

Download
memory/4576-19-0x0000000074A70000-0x0000000075220000-memory.dmp

Filesize
7.7MB

Download
memory/4576-20-0x0000000074A70000-0x0000000075220000-memory.dmp

Filesize
7.7MB

Download
memory/4576-7-0x0000000074A7E000-0x0000000074A7F000-memory.dmp

Filesize
4KB

Download
memory/4576-16-0x0000000005700000-0x0000000005756000-memory.dmp

Filesize
344KB

Download
memory/4576-14-0x0000000004BE0000-0x0000000004C72000-memory.dmp

Filesize
584KB

Download
memory/4576-9-0x0000000005070000-0x000000000559C000-memory.dmp

Filesize
5.2MB

Download
memory/4576-15-0x0000000074A70000-0x0000000075220000-memory.dmp

Filesize
7.7MB

Download
memory/4576-8-0x0000000000080000-0x00000000000EC000-memory.dmp

Filesize
432KB

Download
memory/4576-13-0x0000000004AD0000-0x0000000004AD8000-memory.dmp

Filesize
32KB

Download
memory/4576-10-0x0000000074A70000-0x0000000075220000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads