agenttesla | 7a7e2a413b9ef82df28db3a4beabd9921a834228288eeb4035f1a45ecb36f3b5

General

Target

DOCUMENTS.exe
Size

606KB
MD5

acf124579e7f180928628d6b02701dbf
SHA1

35e410ca0183d5a026ff6418e82bf722d76b58c2
SHA256

3f33e7bde9dcaafa436e0cb2e267371768115ea14de2a9860cefa74af71e9155
SHA512

6572acf3bd665f6eb55956d9226b0057f49c1b8244888c1d2cc0be850ed4a06436d77e482d781e963b6eaf97e5fe4000c6c80a90ad23b30656e2e34ee8df44f8

Score

10^/10

agenttesla evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.microtechlab.in
Port:
587
Username:
reports@microtechlab.in
Password:
pune@123

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/4264-139-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

Disables Task Manager via registry modification
evasion
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:

DOCUMENTS.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	DOCUMENTS.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\CpSnJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CpSnJ\\CpSnJ.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

DOCUMENTS.exe

description pid process target process

PID 1684 set thread context of 4264 1684 DOCUMENTS.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

4764 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

840 REG.exe
Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

DOCUMENTS.exeRegSvcs.exe

pid process

1684 DOCUMENTS.exe
1684 DOCUMENTS.exe
1684 DOCUMENTS.exe
1684 DOCUMENTS.exe
1684 DOCUMENTS.exe
1684 DOCUMENTS.exe
4264 RegSvcs.exe
4264 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

DOCUMENTS.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 1684 DOCUMENTS.exe
Token: SeDebugPrivilege 4264 RegSvcs.exe

description	pid	process	target process
PID 1684 set thread context of 4264	1684	DOCUMENTS.exe	RegSvcs.exe

pid	process
4764	schtasks.exe

pid	process
840	REG.exe

pid	process
1684	DOCUMENTS.exe
1684	DOCUMENTS.exe
1684	DOCUMENTS.exe
1684	DOCUMENTS.exe
1684	DOCUMENTS.exe
1684	DOCUMENTS.exe
4264	RegSvcs.exe
4264	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1684	DOCUMENTS.exe
Token: SeDebugPrivilege	4264	RegSvcs.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

DOCUMENTS.exeRegSvcs.exe

description	pid	process	target process
PID 1684 wrote to memory of 4764	1684	DOCUMENTS.exe	schtasks.exe
PID 1684 wrote to memory of 4764	1684	DOCUMENTS.exe	schtasks.exe
PID 1684 wrote to memory of 4764	1684	DOCUMENTS.exe	schtasks.exe
PID 1684 wrote to memory of 4304	1684	DOCUMENTS.exe	RegSvcs.exe
PID 1684 wrote to memory of 4304	1684	DOCUMENTS.exe	RegSvcs.exe
PID 1684 wrote to memory of 4304	1684	DOCUMENTS.exe	RegSvcs.exe
PID 1684 wrote to memory of 4264	1684	DOCUMENTS.exe	RegSvcs.exe
PID 1684 wrote to memory of 4264	1684	DOCUMENTS.exe	RegSvcs.exe
PID 1684 wrote to memory of 4264	1684	DOCUMENTS.exe	RegSvcs.exe
PID 1684 wrote to memory of 4264	1684	DOCUMENTS.exe	RegSvcs.exe
PID 1684 wrote to memory of 4264	1684	DOCUMENTS.exe	RegSvcs.exe
PID 1684 wrote to memory of 4264	1684	DOCUMENTS.exe	RegSvcs.exe
PID 1684 wrote to memory of 4264	1684	DOCUMENTS.exe	RegSvcs.exe
PID 1684 wrote to memory of 4264	1684	DOCUMENTS.exe	RegSvcs.exe
PID 4264 wrote to memory of 840	4264	RegSvcs.exe	REG.exe
PID 4264 wrote to memory of 840	4264	RegSvcs.exe	REG.exe
PID 4264 wrote to memory of 840	4264	RegSvcs.exe	REG.exe

C:\Users\Admin\AppData\Local\Temp\DOCUMENTS.exe
"C:\Users\Admin\AppData\Local\Temp\DOCUMENTS.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1684

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YRoztVRNUab" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1279.tmp"
2⤵
- Creates scheduled task(s)
PID:4764

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
PID:4304

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4264

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:840

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

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

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp1279.tmp
Filesize
1KB

MD5
2263bcf4fbb615b47ed9f0548bd4ef7f

SHA1
7321cce0f453bcd08babaa4f6a90be4489eb5134

SHA256
168deed9f5504c53f9a7eade34a70275910cd72a9a52756212f92dce416b45d3

SHA512
71cd6fc68e4056ea1612cc2f54ea3c92a266a5365c7801535607a6e1dbe73c9cfedc6b0af50b2d119d4f0311debe9662720ea4315579e3190a9af2e71cfee5f8

Download Submit
memory/840-141-0x0000000000000000-mapping.dmp

Download
memory/1684-130-0x00000000007D0000-0x000000000086E000-memory.dmp

Filesize
632KB

Download
memory/1684-131-0x0000000005860000-0x0000000005E04000-memory.dmp

Filesize
5.6MB

Download
memory/1684-132-0x0000000005450000-0x00000000054E2000-memory.dmp

Filesize
584KB

Download
memory/1684-133-0x00000000056F0000-0x00000000056FA000-memory.dmp

Filesize
40KB

Download
memory/1684-134-0x00000000090F0000-0x000000000918C000-memory.dmp

Filesize
624KB

Download
memory/4264-138-0x0000000000000000-mapping.dmp

Download
memory/4264-139-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/4264-140-0x0000000005A80000-0x0000000005AE6000-memory.dmp

Filesize
408KB

Download
memory/4304-137-0x0000000000000000-mapping.dmp

Download
memory/4764-135-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads