agenttesla | a441e785ee7f8b3600f67cb950445ca9c1c4f23788e185b97e4d293730189c14

General

Target

scan_doc.exe
Size

1.8MB
MD5

6fb31091669d42bcac8a27fcc5d5b098
SHA1

342169ecf74d377002d79ffcda7a2603f6dac45f
SHA256

8a44fabd61b1b7695fed4db543418ec7ceb0a7641035641d449254a9c458affb
SHA512

9dc75386dc299a52a9c7134c0300bb2eabdd7eccb87530f1d864bc6a71e46fa68fcb75242be4db67d6c95930ec7c83f7f1cc1ef9459746ad3180e1ae0a8f31a8
SSDEEP

49152:QU61s2v19IQYiEyooc1eo1uSgq1Jl1lUs19jLaZcPuMQW1Ezqi1L1YUAS5Tf5Sxp:t

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.privateemail.com
Port:
587
Username:
[email protected]
Password:
Blessed12

Signatures

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

AgentTesla payload 5 IoCs

resource	yara_rule
behavioral1/memory/2316-16-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2316-14-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2316-12-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2316-8-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2316-6-0x0000000000400000-0x000000000043C000-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
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 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
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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	scan_doc.exe
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	scan_doc.exe
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	scan_doc.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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\Mymp4 = "C:\\Users\\Admin\\AppData\\Roaming\\Mymp4\\Mymp4.exe"	scan_doc.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs

pid	Process
3064	scan_doc.exe
3064	scan_doc.exe
3064	scan_doc.exe
3064	scan_doc.exe
3064	scan_doc.exe
3064	scan_doc.exe
3064	scan_doc.exe
3064	scan_doc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3064 set thread context of 2316	3064	scan_doc.exe	33

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	scan_doc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	scan_doc.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2160	timeout.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
3064	scan_doc.exe
3064	scan_doc.exe
3064	scan_doc.exe
2316	scan_doc.exe
2316	scan_doc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3064	scan_doc.exe
Token: SeDebugPrivilege	2316	scan_doc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2316	scan_doc.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 3064 wrote to memory of 2100	3064	scan_doc.exe	30
PID 3064 wrote to memory of 2100	3064	scan_doc.exe	30
PID 3064 wrote to memory of 2100	3064	scan_doc.exe	30
PID 3064 wrote to memory of 2100	3064	scan_doc.exe	30
PID 2100 wrote to memory of 2160	2100	cmd.exe	32
PID 2100 wrote to memory of 2160	2100	cmd.exe	32
PID 2100 wrote to memory of 2160	2100	cmd.exe	32
PID 2100 wrote to memory of 2160	2100	cmd.exe	32
PID 3064 wrote to memory of 2316	3064	scan_doc.exe	33
PID 3064 wrote to memory of 2316	3064	scan_doc.exe	33
PID 3064 wrote to memory of 2316	3064	scan_doc.exe	33
PID 3064 wrote to memory of 2316	3064	scan_doc.exe	33
PID 3064 wrote to memory of 2316	3064	scan_doc.exe	33
PID 3064 wrote to memory of 2316	3064	scan_doc.exe	33
PID 3064 wrote to memory of 2316	3064	scan_doc.exe	33
PID 3064 wrote to memory of 2316	3064	scan_doc.exe	33
PID 3064 wrote to memory of 2316	3064	scan_doc.exe	33

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	scan_doc.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	scan_doc.exe

C:\Users\Admin\AppData\Local\Temp\scan_doc.exe
"C:\Users\Admin\AppData\Local\Temp\scan_doc.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3064
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout 1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2100
- - C:\Windows\SysWOW64\timeout.exe
    timeout 1
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2160
- C:\Users\Admin\AppData\Local\Temp\scan_doc.exe
  "C:\Users\Admin\AppData\Local\Temp\scan_doc.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
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:2316

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

4

T1552

Credentials In Files

4

T1552.001

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

memory/2316-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2316-4-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2316-21-0x0000000074190000-0x000000007487E000-memory.dmp

Filesize
6.9MB

Download
memory/2316-20-0x0000000074190000-0x000000007487E000-memory.dmp

Filesize
6.9MB

Download
memory/2316-8-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2316-16-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2316-14-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2316-6-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2316-18-0x0000000074190000-0x000000007487E000-memory.dmp

Filesize
6.9MB

Download
memory/2316-17-0x0000000074190000-0x000000007487E000-memory.dmp

Filesize
6.9MB

Download
memory/2316-12-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2316-5-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3064-1-0x00000000012B0000-0x0000000001488000-memory.dmp

Filesize
1.8MB

Download
memory/3064-2-0x0000000074190000-0x000000007487E000-memory.dmp

Filesize
6.9MB

Download
memory/3064-19-0x0000000074190000-0x000000007487E000-memory.dmp

Filesize
6.9MB

Download
memory/3064-3-0x0000000000990000-0x00000000009DA000-memory.dmp

Filesize
296KB

Download
memory/3064-0-0x000000007419E000-0x000000007419F000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads