agenttesla | 88a6ff740061319c41a286723d934cd5152b6676576157643df6939865491014

General

Target

Request Quotation.exe
Size

893KB
MD5

0bcba8fc1700ee3b654d72c05283c9e2
SHA1

a11f16b6b31d2250b9044c38cae349658920a0b0
SHA256

c9692914eb11d2c1cfb26bae5877943c1769994f857f0aa85b8c8f5064a2f042
SHA512

6ad99192524702bf75d5bc967fe2bf7b9f9d867301288b5ec200841a6a69a72cdbfaa41a3295dfa0968e527ca566044a162bb71c7c8554321b49d22d3a37a687
SSDEEP

24576:qJA70RrozNbqOnWKZ0hS0vlJcx+6FJGh6:WA7iozNbZWeqS0Dcx+6HGh6

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.ckclegal.com
Port:
587
Username:
[email protected]
Password:
S1_CJLP=XwM+

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral2/memory/440-15-0x0000000000400000-0x000000000043C000-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

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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	Request Quotation.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-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\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-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WCPCe = "C:\\Users\\Admin\\AppData\\Roaming\\WCPCe\\WCPCe.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3508 set thread context of 440	3508	Request Quotation.exe	94

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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Request Quotation.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
2288	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3508	Request Quotation.exe
3508	Request Quotation.exe
3508	Request Quotation.exe
3508	Request Quotation.exe
3508	Request Quotation.exe
3508	Request Quotation.exe
440	RegSvcs.exe
440	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3508	Request Quotation.exe
Token: SeDebugPrivilege	440	RegSvcs.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3508 wrote to memory of 2288	3508	Request Quotation.exe	91
PID 3508 wrote to memory of 2288	3508	Request Quotation.exe	91
PID 3508 wrote to memory of 2288	3508	Request Quotation.exe	91
PID 3508 wrote to memory of 4668	3508	Request Quotation.exe	93
PID 3508 wrote to memory of 4668	3508	Request Quotation.exe	93
PID 3508 wrote to memory of 4668	3508	Request Quotation.exe	93
PID 3508 wrote to memory of 440	3508	Request Quotation.exe	94
PID 3508 wrote to memory of 440	3508	Request Quotation.exe	94
PID 3508 wrote to memory of 440	3508	Request Quotation.exe	94
PID 3508 wrote to memory of 440	3508	Request Quotation.exe	94
PID 3508 wrote to memory of 440	3508	Request Quotation.exe	94
PID 3508 wrote to memory of 440	3508	Request Quotation.exe	94
PID 3508 wrote to memory of 440	3508	Request Quotation.exe	94
PID 3508 wrote to memory of 440	3508	Request Quotation.exe	94

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\Request Quotation.exe
"C:\Users\Admin\AppData\Local\Temp\Request Quotation.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:3508
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\iIkHHHv" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6A2F.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2288
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  PID:4668
- 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
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:440

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

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp6A2F.tmp

Filesize
1KB

MD5
a2aba4f656daaab2666318add170c047

SHA1
2e47eb50f360c7a52838de9a3ae19a2f988f8246

SHA256
9203a5cd2231ece0b632bf3b158621c7f4e21e0f8da82725fc39012a0bb7fa26

SHA512
875fda79d5959192477cf9f7f0e1600539b0cc204941729d78cd6d07688b6ed9bfdb7e546d245377c5733682b5a3069519e05c7610f90365a985d74df2cbd143

Download Submit
memory/440-21-0x0000000006620000-0x0000000006686000-memory.dmp

Filesize
408KB

Download
memory/440-20-0x00000000058A0000-0x00000000058B8000-memory.dmp

Filesize
96KB

Download
memory/440-27-0x0000000074FF0000-0x00000000757A0000-memory.dmp

Filesize
7.7MB

Download
memory/440-26-0x0000000006A90000-0x0000000006AE0000-memory.dmp

Filesize
320KB

Download
memory/440-23-0x0000000074FF0000-0x00000000757A0000-memory.dmp

Filesize
7.7MB

Download
memory/440-22-0x0000000074FF0000-0x00000000757A0000-memory.dmp

Filesize
7.7MB

Download
memory/440-19-0x0000000074FF0000-0x00000000757A0000-memory.dmp

Filesize
7.7MB

Download
memory/440-18-0x0000000074FF0000-0x00000000757A0000-memory.dmp

Filesize
7.7MB

Download
memory/440-28-0x0000000074FF0000-0x00000000757A0000-memory.dmp

Filesize
7.7MB

Download
memory/440-15-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3508-7-0x0000000074FFE000-0x0000000074FFF000-memory.dmp

Filesize
4KB

Download
memory/3508-9-0x00000000065C0000-0x000000000662C000-memory.dmp

Filesize
432KB

Download
memory/3508-10-0x0000000008BC0000-0x0000000008C20000-memory.dmp

Filesize
384KB

Download
memory/3508-17-0x0000000074FF0000-0x00000000757A0000-memory.dmp

Filesize
7.7MB

Download
memory/3508-8-0x0000000074FF0000-0x00000000757A0000-memory.dmp

Filesize
7.7MB

Download
memory/3508-3-0x0000000004B80000-0x0000000004C12000-memory.dmp

Filesize
584KB

Download
memory/3508-2-0x0000000005200000-0x00000000057A4000-memory.dmp

Filesize
5.6MB

Download
memory/3508-4-0x0000000004B40000-0x0000000004B4A000-memory.dmp

Filesize
40KB

Download
memory/3508-6-0x0000000004CA0000-0x0000000004CB2000-memory.dmp

Filesize
72KB

Download
memory/3508-0-0x0000000074FFE000-0x0000000074FFF000-memory.dmp

Filesize
4KB

Download
memory/3508-5-0x0000000074FF0000-0x00000000757A0000-memory.dmp

Filesize
7.7MB

Download
memory/3508-11-0x0000000006A10000-0x0000000006AAC000-memory.dmp

Filesize
624KB

Download
memory/3508-1-0x00000000000A0000-0x0000000000184000-memory.dmp

Filesize
912KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads