agenttesla | d61c1f3b23d6ba77364c697d47062ba184113c1c20d3f46b6d629019bc05611a

General

Target

Reservation_pdf.exe
Size

2.2MB
MD5

f44f90fdeb4912a220e1013cd12d91da
SHA1

d6cb59a9021f088be40af8d8fc2a3d8ba8a3dee9
SHA256

d61c1f3b23d6ba77364c697d47062ba184113c1c20d3f46b6d629019bc05611a
SHA512

7033ffed0e9ae5ecc6b824759e24726125a6d807c8f5d15c221c826c8dcafef85c71ddefb6f59e8fdd830f5555e16421b49f7bdeeda63cc5ae88a8eef7d65c48
SSDEEP

49152:EUI0R4f9Xm2uxyR2oSML0EdsE9uRGATTAJzyYBvX+tv2IXkAX:EUPUk2uYRA2HdsCgGAvAcY1X+teI7

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.cimarcochin.com
Port:
587
Username:
[email protected]
Password:
Kelechikelechi1@

Signatures

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

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

Processes:

Reservation_pdf.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	Reservation_pdf.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

Reservation_pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Reservation_pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Reservation_pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Reservation_pdf.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Reservation_pdf.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Mjpzs = "\"C:\\Users\\Admin\\AppData\\Roaming\\Thyamtc\\Mjpzs.exe\""	Reservation_pdf.exe

Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

37 api.ipify.org
38 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

Reservation_pdf.exe

description pid process target process

PID 1048 set thread context of 324 1048 Reservation_pdf.exe Reservation_pdf.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

powershell.exeReservation_pdf.exe

pid process

4948 powershell.exe
4948 powershell.exe
324 Reservation_pdf.exe
324 Reservation_pdf.exe
324 Reservation_pdf.exe

flow	ioc
37	api.ipify.org
38	api.ipify.org

description	pid	process	target process
PID 1048 set thread context of 324	1048	Reservation_pdf.exe	Reservation_pdf.exe

pid	process
4948	powershell.exe
4948	powershell.exe
324	Reservation_pdf.exe
324	Reservation_pdf.exe
324	Reservation_pdf.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Reservation_pdf.exepowershell.exeReservation_pdf.exe

description	pid	process
Token: SeDebugPrivilege	1048	Reservation_pdf.exe
Token: SeDebugPrivilege	4948	powershell.exe
Token: SeDebugPrivilege	324	Reservation_pdf.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

Reservation_pdf.exe

description	pid	process	target process
PID 1048 wrote to memory of 4948	1048	Reservation_pdf.exe	powershell.exe
PID 1048 wrote to memory of 4948	1048	Reservation_pdf.exe	powershell.exe
PID 1048 wrote to memory of 4948	1048	Reservation_pdf.exe	powershell.exe
PID 1048 wrote to memory of 324	1048	Reservation_pdf.exe	Reservation_pdf.exe
PID 1048 wrote to memory of 324	1048	Reservation_pdf.exe	Reservation_pdf.exe
PID 1048 wrote to memory of 324	1048	Reservation_pdf.exe	Reservation_pdf.exe
PID 1048 wrote to memory of 324	1048	Reservation_pdf.exe	Reservation_pdf.exe
PID 1048 wrote to memory of 324	1048	Reservation_pdf.exe	Reservation_pdf.exe
PID 1048 wrote to memory of 324	1048	Reservation_pdf.exe	Reservation_pdf.exe
PID 1048 wrote to memory of 324	1048	Reservation_pdf.exe	Reservation_pdf.exe
PID 1048 wrote to memory of 324	1048	Reservation_pdf.exe	Reservation_pdf.exe

outlook_office_path 1 IoCs

Processes:

Reservation_pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Reservation_pdf.exe

outlook_win_path 1 IoCs

Processes:

Reservation_pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Reservation_pdf.exe

C:\Users\Admin\AppData\Local\Temp\Reservation_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Reservation_pdf.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1048

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4948

C:\Users\Admin\AppData\Local\Temp\Reservation_pdf.exe
C:\Users\Admin\AppData\Local\Temp\Reservation_pdf.exe
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:324

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Reservation_pdf.exe.log
Filesize
1KB

MD5
213858323f46401a2d24a932573c33c7

SHA1
1111d0cea51b5a8086424b6b5ea495f5ef7e1c7f

SHA256
3f4a55f1cfd839c7f95d27e4040ecf5ca39f2a3c83c07a4cebd9453ceb1f48a6

SHA512
21d879c5c47f95f30d9ab19a383a5a8687f04980d97c0f4143ce5b278f8543c070be8aee46bc024b81a5e0f500a10c1b1654b56b1117287ec7602d7109c062c5

Download Submit
memory/324-145-0x0000000000000000-mapping.dmp

Download
memory/324-150-0x0000000007570000-0x000000000757A000-memory.dmp

Filesize
40KB

Download
memory/324-149-0x0000000007190000-0x00000000071E0000-memory.dmp

Filesize
320KB

Download
memory/324-148-0x0000000005970000-0x0000000005A0C000-memory.dmp

Filesize
624KB

Download
memory/324-146-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1048-134-0x0000000005B10000-0x00000000060B4000-memory.dmp

Filesize
5.6MB

Download
memory/1048-135-0x0000000005670000-0x0000000005702000-memory.dmp

Filesize
584KB

Download
memory/1048-136-0x0000000005610000-0x0000000005632000-memory.dmp

Filesize
136KB

Download
memory/1048-133-0x0000000000690000-0x00000000008CA000-memory.dmp

Filesize
2.2MB

Download
memory/4948-137-0x0000000000000000-mapping.dmp

Download
memory/4948-144-0x0000000006AF0000-0x0000000006B0A000-memory.dmp

Filesize
104KB

Download
memory/4948-143-0x0000000007CD0000-0x000000000834A000-memory.dmp

Filesize
6.5MB

Download
memory/4948-142-0x0000000006640000-0x000000000665E000-memory.dmp

Filesize
120KB

Download
memory/4948-141-0x0000000005FE0000-0x0000000006046000-memory.dmp

Filesize
408KB

Download
memory/4948-140-0x0000000005E40000-0x0000000005EA6000-memory.dmp

Filesize
408KB

Download
memory/4948-139-0x0000000005710000-0x0000000005D38000-memory.dmp

Filesize
6.2MB

Download
memory/4948-138-0x00000000050A0000-0x00000000050D6000-memory.dmp

Filesize
216KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads