agenttesla | 369e6d352d539fce9c18791594c6ba5cebafd4fb5d27ee3cf2006dc92279dd67

General

Target
QUOTATION.exe
Size 750KB
Sample221019-h8dpcsfab7
SHA256 3f77323ca44e9fdb70ea05be1bc7814ed7ae78be087363619a2f6bef4bb9bff9
MD5 5df938850b621ec1b54fd646b1076b26
SHA1 e164b60e1bcc721198fea251f312712ad2d6808c
SHA512 033cf9819e5c4be6e6093ee32d2df99ac252920d5ac30852238ed8dcccd886707f35a6066223d6430a45ff6e347363d0d44630984d4bdcc246c4ddd6193e08df
SSDEEP 12288:/AyTM2H5zdr5qN2YteKIt2LLeVpnnwP2OWNrkk:N/C7tIeiD62OWNrkk
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware 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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	QUOTATION.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\KFWOdr = "C:\\Users\\Admin\\AppData\\Roaming\\KFWOdr\\KFWOdr.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3012 set thread context of 1396	3012	QUOTATION.exe	94

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
4968	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3012	QUOTATION.exe
1396	RegSvcs.exe
1396	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3012	QUOTATION.exe
Token: SeDebugPrivilege	1396	RegSvcs.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3012	QUOTATION.exe
3012	QUOTATION.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3012 wrote to memory of 4968	3012	QUOTATION.exe	92
PID 3012 wrote to memory of 4968	3012	QUOTATION.exe	92
PID 3012 wrote to memory of 4968	3012	QUOTATION.exe	92
PID 3012 wrote to memory of 1396	3012	QUOTATION.exe	94
PID 3012 wrote to memory of 1396	3012	QUOTATION.exe	94
PID 3012 wrote to memory of 1396	3012	QUOTATION.exe	94
PID 3012 wrote to memory of 1396	3012	QUOTATION.exe	94
PID 3012 wrote to memory of 1396	3012	QUOTATION.exe	94
PID 3012 wrote to memory of 1396	3012	QUOTATION.exe	94
PID 3012 wrote to memory of 1396	3012	QUOTATION.exe	94
PID 3012 wrote to memory of 1396	3012	QUOTATION.exe	94

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe
"C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3012
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ChoyNvaraab" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6B0E.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4968
- 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:1396

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

tmp6B0E.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp6B0E.tmp
Size 1KB
SHA256 9a923b8169273795b91f8bb7b71560ecd5f9d77b6c5fbc273bdee5cc9f27bf31
MD5 42b13ab17164a6231c05ae94447ac173
SHA1 f5e5d955b80350566edf597871135726220ca6f4
SHA512 cde31452a4df400032d7cfd02ead85afee822d6d5c9feeb9b80abbf73c9a0c457a556b18c89636ea5384a6bf41d83752bee7abe9fe12194a14558a1778325ded
MD5 SHA1 SHA512

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memory/1396-140-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1396-141-0x00000000063A0000-0x0000000006406000-memory.dmp

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memory/1396-142-0x0000000006AA0000-0x0000000006AF0000-memory.dmp

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memory/3012-132-0x0000000000520000-0x00000000005E2000-memory.dmp

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memory/3012-133-0x0000000005470000-0x0000000005A14000-memory.dmp

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memory/3012-134-0x0000000004F70000-0x0000000005002000-memory.dmp

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memory/3012-135-0x00000000050B0000-0x000000000514C000-memory.dmp

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memory/3012-136-0x0000000005020000-0x000000000502A000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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