agenttesla | 66b15ee82b31364bbb038c7a2f60fac0057d01b0865b2b71a4418293fc9e056d

General

Target

citat.exe
Size

507KB
MD5

4c0812477679e4c34663933be5c5f9fb
SHA1

3c3df6e2bb55f8870b9eb9da60008ea58972a20e
SHA256

66b15ee82b31364bbb038c7a2f60fac0057d01b0865b2b71a4418293fc9e056d
SHA512

35868df44b9faf661bd916d5210e5229863838d609f2056f1b6da9e148d588dba5516aa296adad2f42f74e9b13d7ece042b26424820b038025106fb7f0822aa4

Score

10^/10

agenttesla evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
SENEGAL12345

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/652-4-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/652-5-0x0000000000446D2E-mapping.dmp	family_agenttesla
behavioral1/memory/652-6-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/652-7-0x0000000000400000-0x000000000044C000-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:

citat.exe

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

citat.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

citat.exe

description pid process target process

PID 676 set thread context of 652 676 citat.exe RegSvcs.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

1768 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

citat.exeRegSvcs.exe

pid process

676 citat.exe
676 citat.exe
652 RegSvcs.exe
652 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

citat.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 676 citat.exe
Token: SeDebugPrivilege 652 RegSvcs.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegSvcs.exe

pid process

652 RegSvcs.exe

description	pid	process	target process
PID 676 set thread context of 652	676	citat.exe	RegSvcs.exe

pid	process
1768	schtasks.exe

pid	process
676	citat.exe
676	citat.exe
652	RegSvcs.exe
652	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	676	citat.exe
Token: SeDebugPrivilege	652	RegSvcs.exe

pid	process
652	RegSvcs.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

citat.exe

description	pid	process	target process
PID 676 wrote to memory of 1768	676	citat.exe	schtasks.exe
PID 676 wrote to memory of 1768	676	citat.exe	schtasks.exe
PID 676 wrote to memory of 1768	676	citat.exe	schtasks.exe
PID 676 wrote to memory of 1768	676	citat.exe	schtasks.exe
PID 676 wrote to memory of 516	676	citat.exe	RegSvcs.exe
PID 676 wrote to memory of 516	676	citat.exe	RegSvcs.exe
PID 676 wrote to memory of 516	676	citat.exe	RegSvcs.exe
PID 676 wrote to memory of 516	676	citat.exe	RegSvcs.exe
PID 676 wrote to memory of 516	676	citat.exe	RegSvcs.exe
PID 676 wrote to memory of 516	676	citat.exe	RegSvcs.exe
PID 676 wrote to memory of 516	676	citat.exe	RegSvcs.exe
PID 676 wrote to memory of 652	676	citat.exe	RegSvcs.exe
PID 676 wrote to memory of 652	676	citat.exe	RegSvcs.exe
PID 676 wrote to memory of 652	676	citat.exe	RegSvcs.exe
PID 676 wrote to memory of 652	676	citat.exe	RegSvcs.exe
PID 676 wrote to memory of 652	676	citat.exe	RegSvcs.exe
PID 676 wrote to memory of 652	676	citat.exe	RegSvcs.exe
PID 676 wrote to memory of 652	676	citat.exe	RegSvcs.exe
PID 676 wrote to memory of 652	676	citat.exe	RegSvcs.exe
PID 676 wrote to memory of 652	676	citat.exe	RegSvcs.exe
PID 676 wrote to memory of 652	676	citat.exe	RegSvcs.exe
PID 676 wrote to memory of 652	676	citat.exe	RegSvcs.exe
PID 676 wrote to memory of 652	676	citat.exe	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\citat.exe
"C:\Users\Admin\AppData\Local\Temp\citat.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:676

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YYRzvn" /XML "C:\Users\Admin\AppData\Local\Temp\tmp388C.tmp"
2⤵
- Creates scheduled task(s)
PID:1768

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
PID:516

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:652

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

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

3

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp388C.tmp
MD5
43bf79d40f2a6c72710d71f9af8b1d33

SHA1
ce80dcc5abb534a984f064df3795930851750b5c

SHA256
b172ee93da957a9e5e41ffe8165fafc305753964c499d3e5514f99d7dd6ff1a9

SHA512
a7e89ae02f427eb130a2aec85c1261394287ffd533fa2a5be31adce3ad407d851a9234df78cbf964d681843fe036e974503a8ea2d0ba8e250b3261d1d7ed3f2a

Download Submit
memory/652-4-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/652-5-0x0000000000446D2E-mapping.dmp

Download
memory/652-6-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/652-7-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/676-1-0x0000000000000000-0x0000000000000000-disk.dmp

Download
memory/1768-2-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads