agenttesla | 98a56d8eee82cdc72ec5f1fa33a84fb04448f8b1523379add7767db5f4184cd1

General

Target

rKdhHVWehasFrcb.exe
Size

581KB
MD5

3a5d6fbeed702b0686f6fe070bc8bbba
SHA1

3fc76fd5acfb65c8e860a78fd169fec6e9fb3a13
SHA256

333bca520269ca114176493ed2b944cc38cea0bbf11844942f3b632bbe27378b
SHA512

805d163c72350536571a2b908fcfbbc45cd65f70782a6b1607af8ccc5cead4c3f342a71cc06a2b8d05627d706b5cb4e3f9a23a48d306b037c8570adba91c835a

Score

10^/10

agenttesla collection evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
roham.dnswebhost.com
Port:
587
Username:
il@robotkar.ir
Password:
$KENECHI1991

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/1496-61-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla
behavioral1/memory/1496-62-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla
behavioral1/memory/1496-63-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla
behavioral1/memory/1496-64-0x00000000004610DE-mapping.dmp	family_agenttesla
behavioral1/memory/1496-66-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla
behavioral1/memory/1496-68-0x0000000000400000-0x0000000000466000-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:

rKdhHVWehasFrcb.exe

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

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

rKdhHVWehasFrcb.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

rKdhHVWehasFrcb.exe

description pid process target process

PID 1512 set thread context of 1496 1512 rKdhHVWehasFrcb.exe rKdhHVWehasFrcb.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

2032 schtasks.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

rKdhHVWehasFrcb.exerKdhHVWehasFrcb.exe

pid process

1512 rKdhHVWehasFrcb.exe
1512 rKdhHVWehasFrcb.exe
1512 rKdhHVWehasFrcb.exe
1496 rKdhHVWehasFrcb.exe
1496 rKdhHVWehasFrcb.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

rKdhHVWehasFrcb.exerKdhHVWehasFrcb.exe

description pid process

Token: SeDebugPrivilege 1512 rKdhHVWehasFrcb.exe
Token: SeDebugPrivilege 1496 rKdhHVWehasFrcb.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

rKdhHVWehasFrcb.exe

pid process

1496 rKdhHVWehasFrcb.exe

description	pid	process	target process
PID 1512 set thread context of 1496	1512	rKdhHVWehasFrcb.exe	rKdhHVWehasFrcb.exe

pid	process
2032	schtasks.exe

pid	process
1512	rKdhHVWehasFrcb.exe
1512	rKdhHVWehasFrcb.exe
1512	rKdhHVWehasFrcb.exe
1496	rKdhHVWehasFrcb.exe
1496	rKdhHVWehasFrcb.exe

description	pid	process
Token: SeDebugPrivilege	1512	rKdhHVWehasFrcb.exe
Token: SeDebugPrivilege	1496	rKdhHVWehasFrcb.exe

pid	process
1496	rKdhHVWehasFrcb.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

rKdhHVWehasFrcb.exe

description	pid	process	target process
PID 1512 wrote to memory of 2032	1512	rKdhHVWehasFrcb.exe	schtasks.exe
PID 1512 wrote to memory of 2032	1512	rKdhHVWehasFrcb.exe	schtasks.exe
PID 1512 wrote to memory of 2032	1512	rKdhHVWehasFrcb.exe	schtasks.exe
PID 1512 wrote to memory of 2032	1512	rKdhHVWehasFrcb.exe	schtasks.exe
PID 1512 wrote to memory of 1496	1512	rKdhHVWehasFrcb.exe	rKdhHVWehasFrcb.exe
PID 1512 wrote to memory of 1496	1512	rKdhHVWehasFrcb.exe	rKdhHVWehasFrcb.exe
PID 1512 wrote to memory of 1496	1512	rKdhHVWehasFrcb.exe	rKdhHVWehasFrcb.exe
PID 1512 wrote to memory of 1496	1512	rKdhHVWehasFrcb.exe	rKdhHVWehasFrcb.exe
PID 1512 wrote to memory of 1496	1512	rKdhHVWehasFrcb.exe	rKdhHVWehasFrcb.exe
PID 1512 wrote to memory of 1496	1512	rKdhHVWehasFrcb.exe	rKdhHVWehasFrcb.exe
PID 1512 wrote to memory of 1496	1512	rKdhHVWehasFrcb.exe	rKdhHVWehasFrcb.exe
PID 1512 wrote to memory of 1496	1512	rKdhHVWehasFrcb.exe	rKdhHVWehasFrcb.exe
PID 1512 wrote to memory of 1496	1512	rKdhHVWehasFrcb.exe	rKdhHVWehasFrcb.exe

outlook_office_path 1 IoCs

Processes:

rKdhHVWehasFrcb.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	rKdhHVWehasFrcb.exe

outlook_win_path 1 IoCs

Processes:

rKdhHVWehasFrcb.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	rKdhHVWehasFrcb.exe

C:\Users\Admin\AppData\Local\Temp\rKdhHVWehasFrcb.exe
"C:\Users\Admin\AppData\Local\Temp\rKdhHVWehasFrcb.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:1512

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\udUZoaNPn" /XML "C:\Users\Admin\AppData\Local\Temp\tmp698D.tmp"
2⤵
- Creates scheduled task(s)
PID:2032

C:\Users\Admin\AppData\Local\Temp\rKdhHVWehasFrcb.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1496

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\tmp698D.tmp
Filesize
1KB

MD5
abd14a5679c000659bf871029bf0bafc

SHA1
40b523a720952bbd540c088e748d8c4edf499cf8

SHA256
f7edfcf9c2df3706ceae2f0708bd4ef53246e03dcf5d70e5df7becc9de5036f1

SHA512
935e425ead5e36046e7ce60096d5476a39d268b04f76db8e0e0f22e982fd73a7e23e00f8ee76bbba1f83b2413d48261857910bb1d4209b81633bdbc4375eca89

Download Submit
memory/1496-61-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1496-58-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1496-59-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1496-62-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1496-63-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1496-64-0x00000000004610DE-mapping.dmp

Download
memory/1496-66-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1496-68-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1496-70-0x00000000745D0000-0x0000000074B7B000-memory.dmp

Filesize
5.7MB

Download
memory/1512-55-0x0000000074640000-0x0000000074BEB000-memory.dmp

Filesize
5.7MB

Download
memory/1512-54-0x0000000076421000-0x0000000076423000-memory.dmp

Filesize
8KB

Download
memory/2032-56-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads