agenttesla | ee07f6370ede7ad99079e7ec624cac5823d451ce5529496af366fda7e554f6d7

General

Target

Quotation.exe
Size

467KB
MD5

e1a68793a7d62a16837c95b2cc38da0e
SHA1

a239f2c748725a001efff71c5126af68f1bd9fc4
SHA256

d3ccfc7eefe685bc703f2975cde7560c851f7e28f8fac127baf54b24ede4ca91
SHA512

4d3b781ffe5dff71a4fb5a3f081b25c4efc625caf17b52c07c8e1d6a41028b7f38354b55acb0eb8a1b1bf231aa6feba602b25aae4075c932f23f6dab74e906ee

Score

10^/10

agenttesla collection evasion keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.scandinavian-collection.com
Port:
587
Username:
[email protected]
Password:
kR6d.DFet#7w

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Modifies Windows Defender Real-time Protection settings 3 TTPs
evasion trojan

Modify Registry
T1112

Modify Existing Service
T1031

Disabling Security Tools
T1089

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/468-67-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/468-66-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/468-68-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/468-69-0x000000000044CF3E-mapping.dmp	family_agenttesla
behavioral1/memory/468-73-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/468-71-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral1/memory/536-57-0x0000000004C00000-0x0000000004C5A000-memory.dmp	rezer0

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

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

Quotation.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features	Quotation.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	Quotation.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

Quotation.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Quotation.exe

description pid process target process

PID 536 set thread context of 468 536 Quotation.exe Quotation.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

1240 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

576 REG.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

powershell.exeQuotation.exeQuotation.exe

pid process

1984 powershell.exe
536 Quotation.exe
536 Quotation.exe
468 Quotation.exe
468 Quotation.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

powershell.exeQuotation.exeQuotation.exe

description pid process

Token: SeDebugPrivilege 1984 powershell.exe
Token: SeDebugPrivilege 536 Quotation.exe
Token: SeDebugPrivilege 468 Quotation.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Quotation.exe

pid process

468 Quotation.exe

description	pid	process	target process
PID 536 set thread context of 468	536	Quotation.exe	Quotation.exe

pid	process
1240	schtasks.exe

pid	process
576	REG.exe

pid	process
1984	powershell.exe
536	Quotation.exe
536	Quotation.exe
468	Quotation.exe
468	Quotation.exe

description	pid	process
Token: SeDebugPrivilege	1984	powershell.exe
Token: SeDebugPrivilege	536	Quotation.exe
Token: SeDebugPrivilege	468	Quotation.exe

pid	process
468	Quotation.exe

Suspicious use of WriteProcessMemory 29 IoCs

Processes:

Quotation.exeQuotation.exe

description	pid	process	target process
PID 536 wrote to memory of 1984	536	Quotation.exe	powershell.exe
PID 536 wrote to memory of 1984	536	Quotation.exe	powershell.exe
PID 536 wrote to memory of 1984	536	Quotation.exe	powershell.exe
PID 536 wrote to memory of 1984	536	Quotation.exe	powershell.exe
PID 536 wrote to memory of 1240	536	Quotation.exe	schtasks.exe
PID 536 wrote to memory of 1240	536	Quotation.exe	schtasks.exe
PID 536 wrote to memory of 1240	536	Quotation.exe	schtasks.exe
PID 536 wrote to memory of 1240	536	Quotation.exe	schtasks.exe
PID 536 wrote to memory of 1780	536	Quotation.exe	Quotation.exe
PID 536 wrote to memory of 1780	536	Quotation.exe	Quotation.exe
PID 536 wrote to memory of 1780	536	Quotation.exe	Quotation.exe
PID 536 wrote to memory of 1780	536	Quotation.exe	Quotation.exe
PID 536 wrote to memory of 468	536	Quotation.exe	Quotation.exe
PID 536 wrote to memory of 468	536	Quotation.exe	Quotation.exe
PID 536 wrote to memory of 468	536	Quotation.exe	Quotation.exe
PID 536 wrote to memory of 468	536	Quotation.exe	Quotation.exe
PID 536 wrote to memory of 468	536	Quotation.exe	Quotation.exe
PID 536 wrote to memory of 468	536	Quotation.exe	Quotation.exe
PID 536 wrote to memory of 468	536	Quotation.exe	Quotation.exe
PID 536 wrote to memory of 468	536	Quotation.exe	Quotation.exe
PID 536 wrote to memory of 468	536	Quotation.exe	Quotation.exe
PID 468 wrote to memory of 576	468	Quotation.exe	REG.exe
PID 468 wrote to memory of 576	468	Quotation.exe	REG.exe
PID 468 wrote to memory of 576	468	Quotation.exe	REG.exe
PID 468 wrote to memory of 576	468	Quotation.exe	REG.exe
PID 468 wrote to memory of 1276	468	Quotation.exe	netsh.exe
PID 468 wrote to memory of 1276	468	Quotation.exe	netsh.exe
PID 468 wrote to memory of 1276	468	Quotation.exe	netsh.exe
PID 468 wrote to memory of 1276	468	Quotation.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

Quotation.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation.exe

outlook_win_path 1 IoCs

Processes:

Quotation.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation.exe

C:\Users\Admin\AppData\Local\Temp\Quotation.exe
"C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
1⤵
- Windows security modification
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:536

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"powershell" Get-MpPreference -verbose
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1984

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dczIBgAZmY" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4D47.tmp"
2⤵
- Creates scheduled task(s)
PID:1240

C:\Users\Admin\AppData\Local\Temp\Quotation.exe
"{path}"
2⤵
PID:1780

C:\Users\Admin\AppData\Local\Temp\Quotation.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:468

C:\Windows\SysWOW64\REG.exe
REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoRun /t REG_DWORD /d 1 /f
3⤵
- Modifies registry key
PID:576

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1276

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Modify Existing Service

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Disabling Security Tools

Modify Registry

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp4D47.tmp

Filesize
1KB

MD5
17643b7b9234c047676edfb34cc450c7

SHA1
a98f1a80b2e6b7db6f04b3272ff58fda85fc20ca

SHA256
e473558cc596036fcaec5a39ca14a07735564a25db572eb7a787e84b3e53c36a

SHA512
915423ce712a82c1a3167d5e03a6940c4245db06a341e9feebe3a74a36619b66ba2f6d7ef13b37c7d3338ddb4ebfd4ee7cf99f19804c08eff6e1f3302adbe9e5

Download Submit
memory/468-68-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/468-73-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/468-64-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/468-67-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/468-66-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/468-71-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/468-63-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/468-69-0x000000000044CF3E-mapping.dmp

Download
memory/536-56-0x00000000003B0000-0x00000000003B8000-memory.dmp

Filesize
32KB

Download
memory/536-55-0x0000000075B61000-0x0000000075B63000-memory.dmp

Filesize
8KB

Download
memory/536-57-0x0000000004C00000-0x0000000004C5A000-memory.dmp

Filesize
360KB

Download
memory/536-54-0x0000000000270000-0x00000000002EC000-memory.dmp

Filesize
496KB

Download
memory/576-75-0x0000000000000000-mapping.dmp

Download
memory/1240-61-0x0000000000000000-mapping.dmp

Download
memory/1276-76-0x0000000000000000-mapping.dmp

Download
memory/1984-60-0x000000006F070000-0x000000006F61B000-memory.dmp

Filesize
5.7MB

Download
memory/1984-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads