agenttesla | 6f7a21f174b891758b93e5213ed1c59e7028a5bc81e904092bdde053a5068be9

General

Target

731104 A- Billing form.exe
Size

816KB
MD5

6e19e0712ae1e6d81d941842325a7ed9
SHA1

88cf0f0b24cae2ed9827193bc160b6b18fb6e816
SHA256

14eba8c7f68656e758892f4e97c02ea85f38b14fa36145d3aca2c5bfa91e712f
SHA512

7c9ed9074981feeff5fb3762ac769f011dfaff353f0e3a800804ddf42affdfe2336c97817f64d1e83969e88f4147b82e9c675bd336356c874c762a27d4bf3bb4

Score

10^/10

agenttesla collection keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.radiomeff.mk
Port:
587
Username:
[email protected]
Password:
qazwsx@11

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/1160-63-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1160-64-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1160-65-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1160-66-0x000000000044CF9E-mapping.dmp	family_agenttesla
behavioral1/memory/1160-68-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1160-70-0x0000000000400000-0x0000000000452000-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/960-57-0x0000000004B20000-0x0000000004B78000-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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

731104 A- Billing form.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	731104 A- Billing form.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	731104 A- Billing form.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	731104 A- Billing form.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

731104 A- Billing form.exe

description pid process target process

PID 960 set thread context of 1160 960 731104 A- Billing form.exe 731104 A- Billing form.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

1780 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

731104 A- Billing form.exe

pid process

1160 731104 A- Billing form.exe
1160 731104 A- Billing form.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

731104 A- Billing form.exe

description pid process

Token: SeDebugPrivilege 1160 731104 A- Billing form.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

731104 A- Billing form.exe

pid process

1160 731104 A- Billing form.exe

description	pid	process	target process
PID 960 set thread context of 1160	960	731104 A- Billing form.exe	731104 A- Billing form.exe

pid	process
1780	schtasks.exe

pid	process
1160	731104 A- Billing form.exe
1160	731104 A- Billing form.exe

description	pid	process
Token: SeDebugPrivilege	1160	731104 A- Billing form.exe

pid	process
1160	731104 A- Billing form.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

731104 A- Billing form.exe731104 A- Billing form.exe

description	pid	process	target process
PID 960 wrote to memory of 1780	960	731104 A- Billing form.exe	schtasks.exe
PID 960 wrote to memory of 1780	960	731104 A- Billing form.exe	schtasks.exe
PID 960 wrote to memory of 1780	960	731104 A- Billing form.exe	schtasks.exe
PID 960 wrote to memory of 1780	960	731104 A- Billing form.exe	schtasks.exe
PID 960 wrote to memory of 1160	960	731104 A- Billing form.exe	731104 A- Billing form.exe
PID 960 wrote to memory of 1160	960	731104 A- Billing form.exe	731104 A- Billing form.exe
PID 960 wrote to memory of 1160	960	731104 A- Billing form.exe	731104 A- Billing form.exe
PID 960 wrote to memory of 1160	960	731104 A- Billing form.exe	731104 A- Billing form.exe
PID 960 wrote to memory of 1160	960	731104 A- Billing form.exe	731104 A- Billing form.exe
PID 960 wrote to memory of 1160	960	731104 A- Billing form.exe	731104 A- Billing form.exe
PID 960 wrote to memory of 1160	960	731104 A- Billing form.exe	731104 A- Billing form.exe
PID 960 wrote to memory of 1160	960	731104 A- Billing form.exe	731104 A- Billing form.exe
PID 960 wrote to memory of 1160	960	731104 A- Billing form.exe	731104 A- Billing form.exe
PID 1160 wrote to memory of 1004	1160	731104 A- Billing form.exe	netsh.exe
PID 1160 wrote to memory of 1004	1160	731104 A- Billing form.exe	netsh.exe
PID 1160 wrote to memory of 1004	1160	731104 A- Billing form.exe	netsh.exe
PID 1160 wrote to memory of 1004	1160	731104 A- Billing form.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

731104 A- Billing form.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	731104 A- Billing form.exe

outlook_win_path 1 IoCs

Processes:

731104 A- Billing form.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	731104 A- Billing form.exe

C:\Users\Admin\AppData\Local\Temp\731104 A- Billing form.exe
"C:\Users\Admin\AppData\Local\Temp\731104 A- Billing form.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:960

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SapOcOoIdohNWz" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCEB5.tmp"
2⤵
- Creates scheduled task(s)
PID:1780

C:\Users\Admin\AppData\Local\Temp\731104 A- Billing form.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:1160

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1004

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

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\tmpCEB5.tmp
Filesize
1KB

MD5
882beab54d0ed8277a680de8ade5b7dd

SHA1
19b5c80fbbbc67532a35503eefe1ed178969eeaf

SHA256
744935b364608d0ca9debe2b48c20bef71b8094f033b02f296c5ee6ee75f49bd

SHA512
412ebb44663cad3aba4f8d517f02d394efe363d1c30b81c88d0fce0fcf4be6ee7a9b62ec3aca3fe36f0bb04c09baf00bf23c910d55c90957e2802c6ab3dd4b6d

Download Submit
memory/960-54-0x0000000000E70000-0x0000000000F3E000-memory.dmp

Filesize
824KB

Download
memory/960-55-0x0000000076571000-0x0000000076573000-memory.dmp

Filesize
8KB

Download
memory/960-56-0x0000000000710000-0x0000000000718000-memory.dmp

Filesize
32KB

Download
memory/960-57-0x0000000004B20000-0x0000000004B78000-memory.dmp

Filesize
352KB

Download
memory/1004-72-0x0000000000000000-mapping.dmp

Download
memory/1160-60-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1160-63-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1160-61-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1160-64-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1160-65-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1160-66-0x000000000044CF9E-mapping.dmp

Download
memory/1160-68-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1160-70-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1780-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads