agenttesla | 4ac3bf1211efa081b87d49d3b40d8851b0fc66a29f6ad3beb3cb1649d02b8478

General

Target

VQiCue7HEz6VM3g.exe
Size

593KB
MD5

a99ce8dca56f302d6df6c8abcfc707bc
SHA1

57f84fc433737662a1edaf8675f3f28038347126
SHA256

096e367392216bef16b7bb081ec13edbf71a774b5f8de11fe22a15fed254f8c9
SHA512

e5796de19bd9c58c3c49794b1240f16af777308a47333ce8ec41e44ce28f7517c660a70e98f63c21ad7d5c2fb6a10eafb71c1172bea493cbcfe780fa432a8867

Score

10^/10

agenttesla collection evasion keylogger spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
kissme4eva

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
kissme4eva

Signatures

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

AgentTesla Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/536-139-0x0000000000400000-0x0000000000466000-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:

VQiCue7HEz6VM3g.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	VQiCue7HEz6VM3g.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	VQiCue7HEz6VM3g.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

VQiCue7HEz6VM3g.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	VQiCue7HEz6VM3g.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:

VQiCue7HEz6VM3g.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	VQiCue7HEz6VM3g.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	VQiCue7HEz6VM3g.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	VQiCue7HEz6VM3g.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:

VQiCue7HEz6VM3g.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	VQiCue7HEz6VM3g.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	VQiCue7HEz6VM3g.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

VQiCue7HEz6VM3g.exe

description pid process target process

PID 1876 set thread context of 536 1876 VQiCue7HEz6VM3g.exe VQiCue7HEz6VM3g.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

2052 schtasks.exe

description	pid	process	target process
PID 1876 set thread context of 536	1876	VQiCue7HEz6VM3g.exe	VQiCue7HEz6VM3g.exe

pid	process
2052	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

VQiCue7HEz6VM3g.exeVQiCue7HEz6VM3g.exe

pid	process
1876	VQiCue7HEz6VM3g.exe
1876	VQiCue7HEz6VM3g.exe
1876	VQiCue7HEz6VM3g.exe
1876	VQiCue7HEz6VM3g.exe
1876	VQiCue7HEz6VM3g.exe
536	VQiCue7HEz6VM3g.exe
536	VQiCue7HEz6VM3g.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

VQiCue7HEz6VM3g.exeVQiCue7HEz6VM3g.exe

description pid process

Token: SeDebugPrivilege 1876 VQiCue7HEz6VM3g.exe
Token: SeDebugPrivilege 536 VQiCue7HEz6VM3g.exe

description	pid	process
Token: SeDebugPrivilege	1876	VQiCue7HEz6VM3g.exe
Token: SeDebugPrivilege	536	VQiCue7HEz6VM3g.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

VQiCue7HEz6VM3g.exe

description	pid	process	target process
PID 1876 wrote to memory of 2052	1876	VQiCue7HEz6VM3g.exe	schtasks.exe
PID 1876 wrote to memory of 2052	1876	VQiCue7HEz6VM3g.exe	schtasks.exe
PID 1876 wrote to memory of 2052	1876	VQiCue7HEz6VM3g.exe	schtasks.exe
PID 1876 wrote to memory of 4596	1876	VQiCue7HEz6VM3g.exe	VQiCue7HEz6VM3g.exe
PID 1876 wrote to memory of 4596	1876	VQiCue7HEz6VM3g.exe	VQiCue7HEz6VM3g.exe
PID 1876 wrote to memory of 4596	1876	VQiCue7HEz6VM3g.exe	VQiCue7HEz6VM3g.exe
PID 1876 wrote to memory of 536	1876	VQiCue7HEz6VM3g.exe	VQiCue7HEz6VM3g.exe
PID 1876 wrote to memory of 536	1876	VQiCue7HEz6VM3g.exe	VQiCue7HEz6VM3g.exe
PID 1876 wrote to memory of 536	1876	VQiCue7HEz6VM3g.exe	VQiCue7HEz6VM3g.exe
PID 1876 wrote to memory of 536	1876	VQiCue7HEz6VM3g.exe	VQiCue7HEz6VM3g.exe
PID 1876 wrote to memory of 536	1876	VQiCue7HEz6VM3g.exe	VQiCue7HEz6VM3g.exe
PID 1876 wrote to memory of 536	1876	VQiCue7HEz6VM3g.exe	VQiCue7HEz6VM3g.exe
PID 1876 wrote to memory of 536	1876	VQiCue7HEz6VM3g.exe	VQiCue7HEz6VM3g.exe
PID 1876 wrote to memory of 536	1876	VQiCue7HEz6VM3g.exe	VQiCue7HEz6VM3g.exe

outlook_office_path 1 IoCs

Processes:

VQiCue7HEz6VM3g.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	VQiCue7HEz6VM3g.exe

outlook_win_path 1 IoCs

Processes:

VQiCue7HEz6VM3g.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	VQiCue7HEz6VM3g.exe

C:\Users\Admin\AppData\Local\Temp\VQiCue7HEz6VM3g.exe
"C:\Users\Admin\AppData\Local\Temp\VQiCue7HEz6VM3g.exe"
1⤵
- Checks BIOS information in registry
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1876

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qRkTaxBqiU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3C4D.tmp"
2⤵
- Creates scheduled task(s)
PID:2052

C:\Users\Admin\AppData\Local\Temp\VQiCue7HEz6VM3g.exe
"{path}"
2⤵
PID:4596

C:\Users\Admin\AppData\Local\Temp\VQiCue7HEz6VM3g.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:536

Network

MITRE ATT&CK Enterprise 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

Peripheral Device Discovery

Query Registry

System Information Discovery

4

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\VQiCue7HEz6VM3g.exe.log
Filesize
599B

MD5
a56b1681d95f33a909d6f34c33f706fb

SHA1
e996e63f53e9041910f84a4246085c7e76d8ea37

SHA256
7d87bc567d369a8c708b33966c428845d44ce433d2a6445ca4ccf6449482b3a7

SHA512
f0d7998ccb520c7229f95ed26a714b07e6a87c16d097546751f7a0f61678b0abb3fbfcc0caa8eba66fa19c09ad659f89475f0f071f3b249bd1bee07a7cd665a2

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp3C4D.tmp
Filesize
1KB

MD5
efab6688f66e5da2ae059dfa2c37ea58

SHA1
0134a4bc1529e0bc39264a8d7957678a9676c53b

SHA256
9b8a68cf9027ee42fba09d6b133f5cd8bf75a4f0edc3492e55fb9690e731363d

SHA512
b055772b6979a888fd19d7d7b3a1b150bfd6e2b7708fd572c54483f4ff7615d8940ed8ae93d1655f1e9227a10686f76ae68b45b0b0e5847cba06f4183d52f519

Download Submit
memory/536-139-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/536-138-0x0000000000000000-mapping.dmp

Download
memory/536-141-0x0000000006450000-0x00000000064A0000-memory.dmp

Filesize
320KB

Download
memory/536-142-0x0000000006960000-0x000000000696A000-memory.dmp

Filesize
40KB

Download
memory/1876-133-0x00000000057E0000-0x000000000587C000-memory.dmp

Filesize
624KB

Download
memory/1876-134-0x0000000005C30000-0x0000000005C96000-memory.dmp

Filesize
408KB

Download
memory/1876-132-0x0000000004BA0000-0x0000000004C32000-memory.dmp

Filesize
584KB

Download
memory/1876-130-0x0000000000130000-0x00000000001CA000-memory.dmp

Filesize
616KB

Download
memory/1876-131-0x0000000005230000-0x00000000057D4000-memory.dmp

Filesize
5.6MB

Download
memory/2052-135-0x0000000000000000-mapping.dmp

Download
memory/4596-137-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads