agenttesla | 40d5bbe1d42fcbf09fa3789174d04f8a07c44417ecf1b9823a9dda4f399c12d5

General

Target

Quotation Request.exe
Size

1.0MB
MD5

cbfff4b18ad63daf6990e48335a7aa1b
SHA1

76b04133c97c8689d1f4d567103775cc91e67236
SHA256

55dda2889a2fae3ddbe54c70a6ff687d366887a672502d00513543bb9aa482f3
SHA512

72e9b65ebc3452adc6f8ad83b5951f8d27eacfbcc01061243f3f989545e0076afc650eefd1de876ae91248c6be7c9ebdad85ccaf8d2b1ec91d7c8d9d4b26377b

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.varda.com.tr
Port:
587
Username:
info@varda.com.tr
Password:
varda9997929

Signatures

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

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/940-63-0x0000000000400000-0x0000000000474000-memory.dmp	family_agenttesla
behavioral1/memory/940-65-0x0000000000400000-0x0000000000474000-memory.dmp	family_agenttesla
behavioral1/memory/940-67-0x0000000000446E1E-mapping.dmp	family_agenttesla
behavioral1/memory/940-66-0x0000000000400000-0x0000000000474000-memory.dmp	family_agenttesla
behavioral1/memory/940-69-0x0000000000400000-0x0000000000474000-memory.dmp	family_agenttesla
behavioral1/memory/940-71-0x0000000000400000-0x0000000000474000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

Quotation Request.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts Quotation Request.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

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	Quotation Request.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

Quotation Request.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation Request.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation Request.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation Request.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Quotation Request.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run\CpSnJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CpSnJ\\CpSnJ.exe"	Quotation Request.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Quotation Request.exe

description pid process target process

PID 1948 set thread context of 940 1948 Quotation Request.exe Quotation Request.exe
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

Processes:

schtasks.exe

pid process

888 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

1864 REG.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Quotation Request.exe

pid process

940 Quotation Request.exe
940 Quotation Request.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Quotation Request.exe

description pid process

Token: SeDebugPrivilege 940 Quotation Request.exe

description	pid	process	target process
PID 1948 set thread context of 940	1948	Quotation Request.exe	Quotation Request.exe

pid	process
888	schtasks.exe

pid	process
1864	REG.exe

pid	process
940	Quotation Request.exe
940	Quotation Request.exe

description	pid	process
Token: SeDebugPrivilege	940	Quotation Request.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

Quotation Request.exeQuotation Request.exe

description	pid	process	target process
PID 1948 wrote to memory of 888	1948	Quotation Request.exe	schtasks.exe
PID 1948 wrote to memory of 888	1948	Quotation Request.exe	schtasks.exe
PID 1948 wrote to memory of 888	1948	Quotation Request.exe	schtasks.exe
PID 1948 wrote to memory of 888	1948	Quotation Request.exe	schtasks.exe
PID 1948 wrote to memory of 940	1948	Quotation Request.exe	Quotation Request.exe
PID 1948 wrote to memory of 940	1948	Quotation Request.exe	Quotation Request.exe
PID 1948 wrote to memory of 940	1948	Quotation Request.exe	Quotation Request.exe
PID 1948 wrote to memory of 940	1948	Quotation Request.exe	Quotation Request.exe
PID 1948 wrote to memory of 940	1948	Quotation Request.exe	Quotation Request.exe
PID 1948 wrote to memory of 940	1948	Quotation Request.exe	Quotation Request.exe
PID 1948 wrote to memory of 940	1948	Quotation Request.exe	Quotation Request.exe
PID 1948 wrote to memory of 940	1948	Quotation Request.exe	Quotation Request.exe
PID 1948 wrote to memory of 940	1948	Quotation Request.exe	Quotation Request.exe
PID 940 wrote to memory of 1864	940	Quotation Request.exe	REG.exe
PID 940 wrote to memory of 1864	940	Quotation Request.exe	REG.exe
PID 940 wrote to memory of 1864	940	Quotation Request.exe	REG.exe
PID 940 wrote to memory of 1864	940	Quotation Request.exe	REG.exe

outlook_office_path 1 IoCs

Processes:

Quotation Request.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation Request.exe

outlook_win_path 1 IoCs

Processes:

Quotation Request.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation Request.exe

C:\Users\Admin\AppData\Local\Temp\Quotation Request.exe
"C:\Users\Admin\AppData\Local\Temp\Quotation Request.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1948

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jFbVLVAWwUm" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBE51.tmp"
2⤵
- Creates scheduled task(s)
PID:888

C:\Users\Admin\AppData\Local\Temp\Quotation Request.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
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:940

C:\Windows\SysWOW64\REG.exe
REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System / v DisableTaskMgr / t REG_DWORD / d 1 / f
3⤵
- Modifies registry key
PID:1864

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

2

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

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\Temp\tmpBE51.tmp
Filesize
1KB

MD5
5c85a7ab893d20306848de5f119f9581

SHA1
a0ece30d64eb7aa9a3ee4ee332571e05ac6758fc

SHA256
050b864786111d92997f9bb2c78f4fa4f67b810e3c8f91c4848241561e8007ca

SHA512
1689173549423a701cef6e18df89d564178c47afcc26f8d9c2fbd5a2bea122cb9cc8aa1ecb2b987750346de10f1c247f3c3a399585b76bc1c6fb4e4c89301e46

Download Submit
memory/888-58-0x0000000000000000-mapping.dmp

Download
memory/940-65-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/940-60-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/940-61-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/940-63-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/940-67-0x0000000000446E1E-mapping.dmp

Download
memory/940-66-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/940-69-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/940-71-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/1864-73-0x0000000000000000-mapping.dmp

Download
memory/1948-57-0x0000000004DB0000-0x0000000004E2C000-memory.dmp

Filesize
496KB

Download
memory/1948-56-0x00000000002C0000-0x00000000002CA000-memory.dmp

Filesize
40KB

Download
memory/1948-55-0x00000000754A1000-0x00000000754A3000-memory.dmp

Filesize
8KB

Download
memory/1948-54-0x0000000000D40000-0x0000000000E4C000-memory.dmp

Filesize
1.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads