agenttesla | ca9705b69a492e5775f3a5131cbce6c442230f7572c21a23324b983819166154

General

Target

SIGNED AND STAMPED INVOICE.exe
Size

457KB
MD5

8c7516016e1bba2fe0e81b1792d9261e
SHA1

7d4851bad01bb5043d56ea2fb480b952cb087b84
SHA256

0b2ade3b609fe52eb27078440fe30c4983138af0a04bda84e92df8830338c9b1
SHA512

5f36c3f281f8ed5a22d6522623cef0839aebd2b6bebbbdeee068364827d11063d42656719309782843f6641687f1cfefd35b0d8d9fc03fb58a8f7b5360ada92c

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:
[email protected]
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/1136-138-0x0000000000400000-0x0000000000452000-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:

SIGNED AND STAMPED INVOICE.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	SIGNED AND STAMPED INVOICE.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:

SIGNED AND STAMPED INVOICE.exe

description pid process target process

PID 2896 set thread context of 1136 2896 SIGNED AND STAMPED INVOICE.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
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2516 1136 WerFault.exe RegSvcs.exe
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

1380 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

4780 REG.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegSvcs.exe

pid process

1136 RegSvcs.exe
1136 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 1136 RegSvcs.exe

description	pid	process	target process
PID 2896 set thread context of 1136	2896	SIGNED AND STAMPED INVOICE.exe	RegSvcs.exe

pid	pid_target	process	target process
2516	1136	WerFault.exe	RegSvcs.exe

pid	process
1380	schtasks.exe

pid	process
4780	REG.exe

pid	process
1136	RegSvcs.exe
1136	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1136	RegSvcs.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

SIGNED AND STAMPED INVOICE.exeRegSvcs.exe

description	pid	process	target process
PID 2896 wrote to memory of 1380	2896	SIGNED AND STAMPED INVOICE.exe	schtasks.exe
PID 2896 wrote to memory of 1380	2896	SIGNED AND STAMPED INVOICE.exe	schtasks.exe
PID 2896 wrote to memory of 1380	2896	SIGNED AND STAMPED INVOICE.exe	schtasks.exe
PID 2896 wrote to memory of 1136	2896	SIGNED AND STAMPED INVOICE.exe	RegSvcs.exe
PID 2896 wrote to memory of 1136	2896	SIGNED AND STAMPED INVOICE.exe	RegSvcs.exe
PID 2896 wrote to memory of 1136	2896	SIGNED AND STAMPED INVOICE.exe	RegSvcs.exe
PID 2896 wrote to memory of 1136	2896	SIGNED AND STAMPED INVOICE.exe	RegSvcs.exe
PID 2896 wrote to memory of 1136	2896	SIGNED AND STAMPED INVOICE.exe	RegSvcs.exe
PID 2896 wrote to memory of 1136	2896	SIGNED AND STAMPED INVOICE.exe	RegSvcs.exe
PID 2896 wrote to memory of 1136	2896	SIGNED AND STAMPED INVOICE.exe	RegSvcs.exe
PID 2896 wrote to memory of 1136	2896	SIGNED AND STAMPED INVOICE.exe	RegSvcs.exe
PID 1136 wrote to memory of 4780	1136	RegSvcs.exe	REG.exe
PID 1136 wrote to memory of 4780	1136	RegSvcs.exe	REG.exe
PID 1136 wrote to memory of 4780	1136	RegSvcs.exe	REG.exe
PID 1136 wrote to memory of 3632	1136	RegSvcs.exe	netsh.exe
PID 1136 wrote to memory of 3632	1136	RegSvcs.exe	netsh.exe
PID 1136 wrote to memory of 3632	1136	RegSvcs.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\SIGNED AND STAMPED INVOICE.exe
"C:\Users\Admin\AppData\Local\Temp\SIGNED AND STAMPED INVOICE.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2896

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\oDidNSRVZQUc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBB22.tmp"
2⤵
- Creates scheduled task(s)
PID:1380

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:1136

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:4780

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:3632

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1136 -s 1536
3⤵
- Program crash
PID:2516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1136 -ip 1136
1⤵
PID:4032

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\tmpBB22.tmp
Filesize
1KB

MD5
2d3e4348b7eef44adac016c0f35348fe

SHA1
ee323558fb22c3b43f68233848a4faa7d9b632b7

SHA256
80d7fd5518d381b965531ee919fb6010edc3b34c8856424d499c48e89a772c40

SHA512
b471fcc868a10c89ba6b80ed10db4b88b45d04fcd95d68ee18ee2ef03e29552a0bcbc57991362ee4283198166ea2443328e795c2de594dbd3186cefe8175014c

Download Submit
memory/1136-139-0x00000000065F0000-0x0000000006656000-memory.dmp

Filesize
408KB

Download
memory/1136-137-0x0000000000000000-mapping.dmp

Download
memory/1136-138-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1136-141-0x00000000069B0000-0x0000000006A00000-memory.dmp

Filesize
320KB

Download
memory/1380-135-0x0000000000000000-mapping.dmp

Download
memory/2896-132-0x0000000004EB0000-0x0000000004F42000-memory.dmp

Filesize
584KB

Download
memory/2896-133-0x0000000005060000-0x000000000506A000-memory.dmp

Filesize
40KB

Download
memory/2896-134-0x00000000087C0000-0x000000000885C000-memory.dmp

Filesize
624KB

Download
memory/2896-131-0x00000000053A0000-0x0000000005944000-memory.dmp

Filesize
5.6MB

Download
memory/2896-130-0x0000000000490000-0x0000000000508000-memory.dmp

Filesize
480KB

Download
memory/3632-142-0x0000000000000000-mapping.dmp

Download
memory/4780-140-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads