agenttesla | 536cb32d36de59cb03117074b9c6333d75db5beec6c75119f7e474dc4aa0cd6f

General

Target

Doc Remit.exe
Size

494KB
MD5

312a5ef698dcbf3bdaa1fd1b7dceb890
SHA1

8bd85170dd1c57747f9635b23a79d389574fc7d9
SHA256

a7f10ee02c982acfcb3baf5970fe366d6583dfb0c8c27b20cdf00a2a7d103bc3
SHA512

c52a31a924501ba1541649e69c4bfbf30762239c953c41ffd54b44a0a33775f4bf6f04e79d51df8200545034094550a6ea46e5e4511421a513bbd412b1a3430e

Score

10^/10

agenttesla collection evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.starmakertravel.com
Port:
587
Username:
smt@starmakertravel.com
Password:
admin2000

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/856-64-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/856-63-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/856-65-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/856-66-0x000000000044B0EE-mapping.dmp	family_agenttesla
behavioral1/memory/856-68-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/856-70-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

Doc Remit.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Doc Remit.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Doc Remit.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:

Doc Remit.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	Doc Remit.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Doc Remit.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Doc Remit.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

Doc Remit.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	Doc Remit.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	Doc Remit.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Doc Remit.exe

description pid process target process

PID 1676 set thread context of 856 1676 Doc Remit.exe Doc Remit.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

1792 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

Doc Remit.exeDoc Remit.exe

pid process

1676 Doc Remit.exe
856 Doc Remit.exe
856 Doc Remit.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Doc Remit.exeDoc Remit.exe

description pid process

Token: SeDebugPrivilege 1676 Doc Remit.exe
Token: SeDebugPrivilege 856 Doc Remit.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Doc Remit.exe

pid process

856 Doc Remit.exe

description	pid	process	target process
PID 1676 set thread context of 856	1676	Doc Remit.exe	Doc Remit.exe

pid	process
1792	schtasks.exe

pid	process
1676	Doc Remit.exe
856	Doc Remit.exe
856	Doc Remit.exe

description	pid	process
Token: SeDebugPrivilege	1676	Doc Remit.exe
Token: SeDebugPrivilege	856	Doc Remit.exe

pid	process
856	Doc Remit.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

Doc Remit.exeDoc Remit.exe

description	pid	process	target process
PID 1676 wrote to memory of 1792	1676	Doc Remit.exe	schtasks.exe
PID 1676 wrote to memory of 1792	1676	Doc Remit.exe	schtasks.exe
PID 1676 wrote to memory of 1792	1676	Doc Remit.exe	schtasks.exe
PID 1676 wrote to memory of 1792	1676	Doc Remit.exe	schtasks.exe
PID 1676 wrote to memory of 856	1676	Doc Remit.exe	Doc Remit.exe
PID 1676 wrote to memory of 856	1676	Doc Remit.exe	Doc Remit.exe
PID 1676 wrote to memory of 856	1676	Doc Remit.exe	Doc Remit.exe
PID 1676 wrote to memory of 856	1676	Doc Remit.exe	Doc Remit.exe
PID 1676 wrote to memory of 856	1676	Doc Remit.exe	Doc Remit.exe
PID 1676 wrote to memory of 856	1676	Doc Remit.exe	Doc Remit.exe
PID 1676 wrote to memory of 856	1676	Doc Remit.exe	Doc Remit.exe
PID 1676 wrote to memory of 856	1676	Doc Remit.exe	Doc Remit.exe
PID 1676 wrote to memory of 856	1676	Doc Remit.exe	Doc Remit.exe
PID 856 wrote to memory of 1964	856	Doc Remit.exe	netsh.exe
PID 856 wrote to memory of 1964	856	Doc Remit.exe	netsh.exe
PID 856 wrote to memory of 1964	856	Doc Remit.exe	netsh.exe
PID 856 wrote to memory of 1964	856	Doc Remit.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

Doc Remit.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	Doc Remit.exe

outlook_win_path 1 IoCs

Processes:

Doc Remit.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	Doc Remit.exe

C:\Users\Admin\AppData\Local\Temp\Doc Remit.exe
"C:\Users\Admin\AppData\Local\Temp\Doc Remit.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1676

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mNqORvGmYWf" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD2B.tmp"
2⤵
- Creates scheduled task(s)
PID:1792

C:\Users\Admin\AppData\Local\Temp\Doc Remit.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:856

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1964

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

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

3

T1082

Peripheral Device Discovery

1

T1120

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\tmpD2B.tmp
Filesize
1KB

MD5
9b9e4eba5c4e081a8d2bd50430e13a2e

SHA1
671c3e816ffd72a630a5a8ac32f520c427689487

SHA256
432764590c7b68da488701a6b239dfe93538ed4a83a5ae0ae7bf650514d3e642

SHA512
42f4cf8e6eef8daf23f3c9481254e6a1051c49ca3afb3d74ab0cd6785b0b6c5abcdfeec34d4e2ae6c854be10a7127099303e7776037165956687c09a5f69ba50

Download Submit
memory/856-63-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/856-66-0x000000000044B0EE-mapping.dmp

Download
memory/856-70-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/856-68-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/856-65-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/856-60-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/856-61-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/856-64-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1676-54-0x0000000000190000-0x0000000000212000-memory.dmp

Filesize
520KB

Download
memory/1676-55-0x0000000076451000-0x0000000076453000-memory.dmp

Filesize
8KB

Download
memory/1676-56-0x0000000000340000-0x0000000000348000-memory.dmp

Filesize
32KB

Download
memory/1676-57-0x00000000023A0000-0x00000000023F8000-memory.dmp

Filesize
352KB

Download
memory/1792-58-0x0000000000000000-mapping.dmp

Download
memory/1964-72-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads