agenttesla | bd648199b17ff21db3d45cfd10eb3b70fdcbdf42c405061025de6cd1a59c212e

General

Target

Payment.exe
Size

1.0MB
MD5

6b30bab8e1f4ff60acca54a249517bd5
SHA1

4a934e2daf22ee33f1aea1cd49cdd294986efc16
SHA256

bd648199b17ff21db3d45cfd10eb3b70fdcbdf42c405061025de6cd1a59c212e
SHA512

6ab09364ace6407d9cd139e1f564f6d38134a13d0b7281aeca74e8d3f1a76199a794c248c1ef7a5ded326765cac7f4b94d0bba484b76f33457db49a620852ac7

Score

10^/10

agenttesla evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.shirdilog.com
Port:
587
Username:
cs.maa@shirdilog.com
Password:
SL094521

Signatures

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

AgentTesla Payload 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/992-9-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla
behavioral1/memory/992-10-0x00000000004612BE-mapping.dmp	family_agenttesla
behavioral1/memory/992-12-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla
behavioral1/memory/992-11-0x0000000000400000-0x0000000000466000-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:

Payment.exe

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

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

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

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

Data from Local System
T1005

Credentials in Files
T1081

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:

Payment.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

Payment.exe

description pid process target process

PID 1684 set thread context of 992 1684 Payment.exe Payment.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

1088 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

308 REG.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Payment.exe

pid process

992 Payment.exe
992 Payment.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Payment.exe

description pid process

Token: SeDebugPrivilege 992 Payment.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Payment.exe

pid process

992 Payment.exe

description	pid	process	target process
PID 1684 set thread context of 992	1684	Payment.exe	Payment.exe

pid	process
1088	schtasks.exe

pid	process
308	REG.exe

pid	process
992	Payment.exe
992	Payment.exe

description	pid	process
Token: SeDebugPrivilege	992	Payment.exe

pid	process
992	Payment.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

Payment.exePayment.exe

description	pid	process	target process
PID 1684 wrote to memory of 1088	1684	Payment.exe	schtasks.exe
PID 1684 wrote to memory of 1088	1684	Payment.exe	schtasks.exe
PID 1684 wrote to memory of 1088	1684	Payment.exe	schtasks.exe
PID 1684 wrote to memory of 1088	1684	Payment.exe	schtasks.exe
PID 1684 wrote to memory of 992	1684	Payment.exe	Payment.exe
PID 1684 wrote to memory of 992	1684	Payment.exe	Payment.exe
PID 1684 wrote to memory of 992	1684	Payment.exe	Payment.exe
PID 1684 wrote to memory of 992	1684	Payment.exe	Payment.exe
PID 1684 wrote to memory of 992	1684	Payment.exe	Payment.exe
PID 1684 wrote to memory of 992	1684	Payment.exe	Payment.exe
PID 1684 wrote to memory of 992	1684	Payment.exe	Payment.exe
PID 1684 wrote to memory of 992	1684	Payment.exe	Payment.exe
PID 1684 wrote to memory of 992	1684	Payment.exe	Payment.exe
PID 992 wrote to memory of 308	992	Payment.exe	REG.exe
PID 992 wrote to memory of 308	992	Payment.exe	REG.exe
PID 992 wrote to memory of 308	992	Payment.exe	REG.exe
PID 992 wrote to memory of 308	992	Payment.exe	REG.exe

C:\Users\Admin\AppData\Local\Temp\Payment.exe
"C:\Users\Admin\AppData\Local\Temp\Payment.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1684

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gnFZsnV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp60E5.tmp"
2⤵
- Creates scheduled task(s)
PID:1088

C:\Users\Admin\AppData\Local\Temp\Payment.exe
"{path}"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:992

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:308

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

Modify Registry

1

T1112

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

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp60E5.tmp
MD5
45afbf310e9749ca65f5a9f8d7a6ad15

SHA1
4346597814a6cfb0981f06a62c339ddb5696ef72

SHA256
bf62bc7e66a3629a4fbd6d0452bcb411e9defa256a30942ede89153bdf96a55c

SHA512
db72e91b7f07e62e1b345cd6bd0cfc0aad5a77220694c0fbc80bfe9bf8c18a689fd7cec4bbe49016bdda2a1ee890ff970dbba8ae13857d16c42477c90f7a51ae

Download Submit
memory/308-16-0x0000000000000000-mapping.dmp

Download
memory/992-9-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/992-10-0x00000000004612BE-mapping.dmp

Download
memory/992-12-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/992-11-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/992-13-0x0000000074110000-0x00000000747FE000-memory.dmp

Filesize
6.9MB

Download
memory/1088-7-0x0000000000000000-mapping.dmp

Download
memory/1684-2-0x0000000074110000-0x00000000747FE000-memory.dmp

Filesize
6.9MB

Download
memory/1684-3-0x0000000001230000-0x0000000001231000-memory.dmp

Filesize
4KB

Download
memory/1684-5-0x0000000000260000-0x000000000026E000-memory.dmp

Filesize
56KB

Download
memory/1684-6-0x0000000007F60000-0x0000000008037000-memory.dmp

Filesize
860KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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