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 1 IoCs

resource	yara_rule
behavioral2/memory/4916-18-0x0000000000400000-0x000000000043C000-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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	Scan copy_001.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-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\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-1-5-21-2437139445-1151884604-3026847218-1000\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 2736 set thread context of 4916	2736	Scan copy_001.exe	100

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	Scan copy_001.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.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
4496	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2736	Scan copy_001.exe
4916	RegSvcs.exe
4916	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2736	Scan copy_001.exe
Token: SeDebugPrivilege	4916	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2736 wrote to memory of 4496	2736	Scan copy_001.exe	98
PID 2736 wrote to memory of 4496	2736	Scan copy_001.exe	98
PID 2736 wrote to memory of 4496	2736	Scan copy_001.exe	98
PID 2736 wrote to memory of 4916	2736	Scan copy_001.exe	100
PID 2736 wrote to memory of 4916	2736	Scan copy_001.exe	100
PID 2736 wrote to memory of 4916	2736	Scan copy_001.exe	100
PID 2736 wrote to memory of 4916	2736	Scan copy_001.exe	100
PID 2736 wrote to memory of 4916	2736	Scan copy_001.exe	100
PID 2736 wrote to memory of 4916	2736	Scan copy_001.exe	100
PID 2736 wrote to memory of 4916	2736	Scan copy_001.exe	100
PID 2736 wrote to memory of 4916	2736	Scan copy_001.exe	100

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\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⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2736
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FcKakBL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp507C.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4496
- 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:4916

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

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp507C.tmp

Filesize
1KB

MD5
776fca961a091b16feb4f85ad5738cad

SHA1
375fabc18e404148abad79faae543eb0e45d1e5a

SHA256
1e259c1d0b29634ce819b34c27e090475cf6b0e2c73f7db50ad650592bdeb527

SHA512
7259ada4dc4fb8f19e5bd17b22db2b380d74e6f227aa7c8d8498b8a8b06d47e025429d8c72a992e9e4aad79c91a53f725e755e2fd28cd9d6bcfec6e6df93b17a

Download Submit
memory/2736-12-0x00000000097B0000-0x00000000097EC000-memory.dmp

Filesize
240KB

Download
memory/2736-8-0x00000000068F0000-0x0000000006906000-memory.dmp

Filesize
88KB

Download
memory/2736-3-0x0000000005C70000-0x0000000006214000-memory.dmp

Filesize
5.6MB

Download
memory/2736-4-0x00000000056C0000-0x0000000005752000-memory.dmp

Filesize
584KB

Download
memory/2736-5-0x0000000005640000-0x000000000564A000-memory.dmp

Filesize
40KB

Download
memory/2736-6-0x0000000005870000-0x00000000058C6000-memory.dmp

Filesize
344KB

Download
memory/2736-7-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/2736-1-0x0000000000BF0000-0x0000000000CE4000-memory.dmp

Filesize
976KB

Download
memory/2736-9-0x0000000074F2E000-0x0000000074F2F000-memory.dmp

Filesize
4KB

Download
memory/2736-10-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/2736-11-0x0000000007140000-0x00000000071E2000-memory.dmp

Filesize
648KB

Download
memory/2736-2-0x0000000005570000-0x000000000560C000-memory.dmp

Filesize
624KB

Download
memory/2736-0-0x0000000074F2E000-0x0000000074F2F000-memory.dmp

Filesize
4KB

Download
memory/2736-21-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/4916-29-0x00000000015F0000-0x0000000001640000-memory.dmp

Filesize
320KB

Download
memory/4916-18-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4916-22-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/4916-23-0x0000000005930000-0x0000000005948000-memory.dmp

Filesize
96KB

Download
memory/4916-24-0x0000000005CA0000-0x0000000005D06000-memory.dmp

Filesize
408KB

Download
memory/4916-25-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/4916-26-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/4916-20-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/4916-30-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/4916-31-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads