agenttesla | 936fa9d5f9708a96f2e8cc270deb24518d047450e0618c6c22753d97a7589177

General

Target

Scan copy_001.exe
Size

947KB
MD5

45d964682ea37a0809803e813638017f
SHA1

9d6c3495865736235e55d8384832e9f09cb70896
SHA256

b7ee1c6ebcc9675e5e1e3743b03a712c5e789f9b456275c05b35502bea6131e6
SHA512

e4b2d060dd4066534cc6c8e726f7e41e637ad6a0203dc36c59d75eb136a366695adcbe363eb8627e4df46f659821d6fea85995c28686dd2453aa14ba4a727356
SSDEEP

12288:ZXQZnf1pZRNtMLHK7zMWM9IZoFhK5zM66MXo8QR8T+JqS25lsxW9gf+NLIRljvfm:efXTs9Ktl7Yf2SoPfsMdIR9h

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.shivsundaram.com
Port:
587
Username:
[email protected]
Password:
hemant@10023

Signatures

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

AgentTesla payload 5 IoCs

resource	yara_rule
behavioral1/memory/3048-16-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/3048-20-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/3048-17-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/3048-24-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/3048-22-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

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

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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\NXLun = "C:\\Users\\Admin\\AppData\\Roaming\\NXLun\\NXLun.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1668 set thread context of 3048	1668	Scan copy_001.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 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	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Scan copy_001.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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
2680	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1668	Scan copy_001.exe
3048	RegSvcs.exe
3048	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1668	Scan copy_001.exe
Token: SeDebugPrivilege	3048	RegSvcs.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1668 wrote to memory of 2680	1668	Scan copy_001.exe	31
PID 1668 wrote to memory of 2680	1668	Scan copy_001.exe	31
PID 1668 wrote to memory of 2680	1668	Scan copy_001.exe	31
PID 1668 wrote to memory of 2680	1668	Scan copy_001.exe	31
PID 1668 wrote to memory of 3048	1668	Scan copy_001.exe	33
PID 1668 wrote to memory of 3048	1668	Scan copy_001.exe	33
PID 1668 wrote to memory of 3048	1668	Scan copy_001.exe	33
PID 1668 wrote to memory of 3048	1668	Scan copy_001.exe	33
PID 1668 wrote to memory of 3048	1668	Scan copy_001.exe	33
PID 1668 wrote to memory of 3048	1668	Scan copy_001.exe	33
PID 1668 wrote to memory of 3048	1668	Scan copy_001.exe	33
PID 1668 wrote to memory of 3048	1668	Scan copy_001.exe	33
PID 1668 wrote to memory of 3048	1668	Scan copy_001.exe	33
PID 1668 wrote to memory of 3048	1668	Scan copy_001.exe	33
PID 1668 wrote to memory of 3048	1668	Scan copy_001.exe	33
PID 1668 wrote to memory of 3048	1668	Scan copy_001.exe	33

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\Scan copy_001.exe
"C:\Users\Admin\AppData\Local\Temp\Scan copy_001.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1668
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FcKakBL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7C51.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2680
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  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
  - outlook_office_path
  - outlook_win_path
  PID:3048

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

1

T1112

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Information Discovery

1

T1082

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

C:\Users\Admin\AppData\Local\Temp\tmp7C51.tmp

Filesize
1KB

MD5
78a8df17fe33e1cc11bc06f542373758

SHA1
400e82175be535c4a495dfa57d97ebc1fbfde282

SHA256
b2463efcc82849ca36642a22226017e54403cc858d9f6820fa9a871ba6c5c01f

SHA512
7b7c9827faa63f8b2154eb4515731cc9ea961e218a722d0aff2b750d1d173c80540d29bdf5d60a7d1911daa8bcc5e3882972bead47e0e3ca62b43927cfe4b16b

Download Submit
memory/1668-0-0x00000000744DE000-0x00000000744DF000-memory.dmp

Filesize
4KB

Download
memory/1668-1-0x0000000001170000-0x0000000001264000-memory.dmp

Filesize
976KB

Download
memory/1668-2-0x00000000744D0000-0x0000000074BBE000-memory.dmp

Filesize
6.9MB

Download
memory/1668-3-0x0000000000270000-0x0000000000286000-memory.dmp

Filesize
88KB

Download
memory/1668-4-0x00000000744DE000-0x00000000744DF000-memory.dmp

Filesize
4KB

Download
memory/1668-5-0x00000000744D0000-0x0000000074BBE000-memory.dmp

Filesize
6.9MB

Download
memory/1668-6-0x00000000056E0000-0x0000000005782000-memory.dmp

Filesize
648KB

Download
memory/1668-7-0x0000000001130000-0x000000000116C000-memory.dmp

Filesize
240KB

Download
memory/1668-26-0x00000000744D0000-0x0000000074BBE000-memory.dmp

Filesize
6.9MB

Download
memory/3048-16-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3048-20-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3048-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3048-17-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3048-15-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3048-25-0x00000000744D0000-0x0000000074BBE000-memory.dmp

Filesize
6.9MB

Download
memory/3048-24-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3048-22-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3048-27-0x00000000744D0000-0x0000000074BBE000-memory.dmp

Filesize
6.9MB

Download
memory/3048-14-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3048-28-0x00000000744D0000-0x0000000074BBE000-memory.dmp

Filesize
6.9MB

Download
memory/3048-29-0x00000000744D0000-0x0000000074BBE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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