agenttesla | a2b8a1e8ffa94d98ae7e7ddbc63662f91020d004362423a78dd1946e1fd708e8

General

Target

REMITTANCE COPY..exe
Size

691KB
MD5

ecd4d524988a5ad8813312e23a04c7f7
SHA1

bb748bb7e34b8ef8a506eaeb77965f2a3fddc88c
SHA256

239c9e3df55261a7c4037ac8b5693cecb72c0c5d3f832787baea8ad4f1841209
SHA512

b351e9b38e64ad14bf6c49a7fa819bfa4afba13e09825b6697e2ce32900635e0cb6d084a101dd9bde57742f5a5a9b8662d7917f391af9f35cbcb17ef472ccbe1

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.palcoman.com
Port:
587
Username:
[email protected]
Password:
GgwWVBJ5

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/1288-136-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

RegSvcs.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	RegSvcs.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:

REMITTANCE COPY..exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	REMITTANCE COPY..exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

RegSvcs.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gKWBf = "C:\\Users\\Admin\\AppData\\Roaming\\gKWBf\\gKWBf.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

REMITTANCE COPY..exe

description pid process target process

PID 2348 set thread context of 1288 2348 REMITTANCE COPY..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

2280 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

3060 REG.exe

description	pid	process	target process
PID 2348 set thread context of 1288	2348	REMITTANCE COPY..exe	RegSvcs.exe

pid	process
2280	schtasks.exe

pid	process
3060	REG.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

REMITTANCE COPY..exeRegSvcs.exe

pid	process
2348	REMITTANCE COPY..exe
2348	REMITTANCE COPY..exe
2348	REMITTANCE COPY..exe
2348	REMITTANCE COPY..exe
2348	REMITTANCE COPY..exe
2348	REMITTANCE COPY..exe
2348	REMITTANCE COPY..exe
1288	RegSvcs.exe
1288	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

REMITTANCE COPY..exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 2348 REMITTANCE COPY..exe
Token: SeDebugPrivilege 1288 RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	2348	REMITTANCE COPY..exe
Token: SeDebugPrivilege	1288	RegSvcs.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

REMITTANCE COPY..exeRegSvcs.exe

description	pid	process	target process
PID 2348 wrote to memory of 2280	2348	REMITTANCE COPY..exe	schtasks.exe
PID 2348 wrote to memory of 2280	2348	REMITTANCE COPY..exe	schtasks.exe
PID 2348 wrote to memory of 2280	2348	REMITTANCE COPY..exe	schtasks.exe
PID 2348 wrote to memory of 1288	2348	REMITTANCE COPY..exe	RegSvcs.exe
PID 2348 wrote to memory of 1288	2348	REMITTANCE COPY..exe	RegSvcs.exe
PID 2348 wrote to memory of 1288	2348	REMITTANCE COPY..exe	RegSvcs.exe
PID 2348 wrote to memory of 1288	2348	REMITTANCE COPY..exe	RegSvcs.exe
PID 2348 wrote to memory of 1288	2348	REMITTANCE COPY..exe	RegSvcs.exe
PID 2348 wrote to memory of 1288	2348	REMITTANCE COPY..exe	RegSvcs.exe
PID 2348 wrote to memory of 1288	2348	REMITTANCE COPY..exe	RegSvcs.exe
PID 2348 wrote to memory of 1288	2348	REMITTANCE COPY..exe	RegSvcs.exe
PID 1288 wrote to memory of 3060	1288	RegSvcs.exe	REG.exe
PID 1288 wrote to memory of 3060	1288	RegSvcs.exe	REG.exe
PID 1288 wrote to memory of 3060	1288	RegSvcs.exe	REG.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\REMITTANCE COPY..exe
"C:\Users\Admin\AppData\Local\Temp\REMITTANCE COPY..exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2348

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BjNWcXgEdQmwhv" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF721.tmp"
2⤵
- Creates scheduled task(s)
PID:2280

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1288

C:\Windows\SysWOW64\REG.exe
REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System / v DisableTaskMgr / t REG_DWORD / d 1 / f
3⤵
- Modifies registry key
PID:3060

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpF721.tmp

Filesize
1KB

MD5
23f13aaa8bc1a89855af712f432cde4a

SHA1
47d2f3babde7753a8a877f5aec65552611763b1d

SHA256
7684681e344d5189dc2a9caac53b182bd359f16e37c2bbbe0e746c6444eff964

SHA512
318affca181af90768aac0d7ffa3519f88b9764d8a5deb581b267ef53479768418537d2e4f2a6ce4e65164ef39d7c93a1b45c4128cb3dce80df02b3acb58ac77

Download Submit
memory/1288-135-0x0000000000000000-mapping.dmp

Download
memory/1288-136-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1288-137-0x0000000005720000-0x0000000005CC4000-memory.dmp

Filesize
5.6MB

Download
memory/1288-138-0x00000000056B0000-0x0000000005716000-memory.dmp

Filesize
408KB

Download
memory/1288-139-0x0000000006390000-0x00000000063E0000-memory.dmp

Filesize
320KB

Download
memory/1288-141-0x0000000006380000-0x000000000638A000-memory.dmp

Filesize
40KB

Download
memory/2280-133-0x0000000000000000-mapping.dmp

Download
memory/2348-130-0x0000000000B80000-0x0000000000C32000-memory.dmp

Filesize
712KB

Download
memory/2348-131-0x00000000058F0000-0x000000000598C000-memory.dmp

Filesize
624KB

Download
memory/2348-132-0x0000000005A30000-0x0000000005AC2000-memory.dmp

Filesize
584KB

Download
memory/3060-140-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads