agenttesla | eec5b8a3e9851cc187cee8b0fedf3945b1fed61b8f5c05d02622de84777edc1c

Analysis

max time kernel
55s
max time network
152s
platform
windows7_x64
resource
win7-20220414-en
submitted
19/04/2022, 11:40

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
Swift Copy.exe
Size 786KB
Sample220419-nsvwlaechk
SHA256 e9bd3df24e3beacf41ddecf97a34c5cfdd696ad9d58e3fbe79dbea8f88487ad5
MD5 ed6b17793a48cce9afdac74213fbac7a
SHA1 a75f16d0f9aa9e4229f4975be1920677a4fa175c
SHA512 3266302fd7edb80eb92420260170405ad3580bd9b304a70a73d3276fe465789270421ff69836f87c6873b9c775ef266f6450c34d80d59d8c7cd2fda430038fc8
MD5 SHA1 SHA512

Score

10^/10

agenttesla collection keylogger persistence spyware stealer suricata trojan

Malware Config

Extracted

Credentials

Protocol
smtp
Host
webmail.mdist.us
Port
587
Username
[email protected]
Password
Jobs#4321

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
webmail.mdist.us
Port
587
Username
[email protected]
Password
Jobs#4321

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
suricata: ET MALWARE AgentTesla Exfil Via SMTP
suricata: ET MALWARE AgentTesla Exfil Via SMTP
suricata

Drops file in Drivers directory 1 IoCs

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\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

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\tbKkO = "C:\\Users\\Admin\\AppData\\Roaming\\tbKkO\\tbKkO.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1992 set thread context of 1236	1992	Swift Copy.exe	29

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1264	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1992	Swift Copy.exe
1236	RegSvcs.exe
1236	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1992	Swift Copy.exe
Token: SeDebugPrivilege	1236	RegSvcs.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1992 wrote to memory of 1264	1992	Swift Copy.exe	27
PID 1992 wrote to memory of 1264	1992	Swift Copy.exe	27
PID 1992 wrote to memory of 1264	1992	Swift Copy.exe	27
PID 1992 wrote to memory of 1264	1992	Swift Copy.exe	27
PID 1992 wrote to memory of 1236	1992	Swift Copy.exe	29
PID 1992 wrote to memory of 1236	1992	Swift Copy.exe	29
PID 1992 wrote to memory of 1236	1992	Swift Copy.exe	29
PID 1992 wrote to memory of 1236	1992	Swift Copy.exe	29
PID 1992 wrote to memory of 1236	1992	Swift Copy.exe	29
PID 1992 wrote to memory of 1236	1992	Swift Copy.exe	29
PID 1992 wrote to memory of 1236	1992	Swift Copy.exe	29
PID 1992 wrote to memory of 1236	1992	Swift Copy.exe	29
PID 1992 wrote to memory of 1236	1992	Swift Copy.exe	29
PID 1992 wrote to memory of 1236	1992	Swift Copy.exe	29
PID 1992 wrote to memory of 1236	1992	Swift Copy.exe	29
PID 1992 wrote to memory of 1236	1992	Swift Copy.exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\Swift Copy.exe
"C:\Users\Admin\AppData\Local\Temp\Swift Copy.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YEyfAKXUWTdI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp86BD.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1264
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1236

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

tmp86BD.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp86BD.tmp
Size 1KB
SHA256 49010d0ef0c8cdad53325be6847b09c3aa31c157597104c782529db39501c2c7
MD5 04b950a248aa89d7b2fd5206e4460e55
SHA1 853526b02f4de688313b1fa875e5e955e692cb97
SHA512 20a7d4cd8ca2bcd76828c1f2084f05e561cd5ae14e04f8c91f44885946358c05f77e6e14c6768f3390f75d8244899272d817791bdf77c929318f97e0de1d6a0d
MD5 SHA1 SHA512

Submit Download

memory/1236-65-0x0000000000400000-0x000000000046E000-memory.dmp

Download

memory/1236-60-0x0000000000400000-0x000000000046E000-memory.dmp

Download

memory/1236-61-0x0000000000400000-0x000000000046E000-memory.dmp

Download

memory/1236-63-0x0000000000400000-0x000000000046E000-memory.dmp

Download

memory/1236-66-0x0000000000400000-0x000000000046E000-memory.dmp

Download

memory/1236-69-0x0000000000400000-0x000000000046E000-memory.dmp

Download

memory/1236-71-0x0000000000400000-0x000000000046E000-memory.dmp

Download

memory/1992-56-0x0000000005C00000-0x0000000005C8C000-memory.dmp

Download

memory/1992-57-0x0000000005FB0000-0x0000000006020000-memory.dmp

Download

memory/1992-55-0x0000000000410000-0x000000000041A000-memory.dmp

Download

memory/1992-54-0x0000000000970000-0x0000000000A3A000-memory.dmp

Download