agenttesla | 3edbfa536e3f17dd5197bad95088e58fc5762a45dcf6152802dcd3cb289d6976

General

Target

scan11062020.exe
Size

501KB
MD5

9e0f05b03c09d15ca55851c8644a5684
SHA1

406c628e80a0d2ded0a91285d167a33ec4aee862
SHA256

d2fc8ce856e5259480e5dd3e9d2f76a24242d5e52f656fa9d0f87bdd57b18f6a
SHA512

0a461e4e0493f42ff179f8d59f4495ee0d7cd87c00fab526e002a4b5f80459237c0ce0bf622884c47badd00ed6ed024f3e6c945bd2f992c26bf61e1a62421545

Score

10^/10

agenttesla collection evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.pptoursperu.com
Port:
587
Username:
[email protected]
Password:
mailppt2019-

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/4984-139-0x0000000000400000-0x0000000000452000-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

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\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
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

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:

scan11062020.exe

description pid process target process

PID 4100 set thread context of 4984 4100 scan11062020.exe RegSvcs.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3504 4984 WerFault.exe RegSvcs.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

3472 REG.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

scan11062020.exeRegSvcs.exe

pid process

4100 scan11062020.exe
4100 scan11062020.exe
4984 RegSvcs.exe
4984 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

scan11062020.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 4100 scan11062020.exe
Token: SeDebugPrivilege 4984 RegSvcs.exe

description	pid	process	target process
PID 4100 set thread context of 4984	4100	scan11062020.exe	RegSvcs.exe

pid	pid_target	process	target process
3504	4984	WerFault.exe	RegSvcs.exe

pid	process
3472	REG.exe

pid	process
4100	scan11062020.exe
4100	scan11062020.exe
4984	RegSvcs.exe
4984	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	4100	scan11062020.exe
Token: SeDebugPrivilege	4984	RegSvcs.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

scan11062020.exeRegSvcs.exe

description	pid	process	target process
PID 4100 wrote to memory of 1152	4100	scan11062020.exe	RegSvcs.exe
PID 4100 wrote to memory of 1152	4100	scan11062020.exe	RegSvcs.exe
PID 4100 wrote to memory of 1152	4100	scan11062020.exe	RegSvcs.exe
PID 4100 wrote to memory of 4984	4100	scan11062020.exe	RegSvcs.exe
PID 4100 wrote to memory of 4984	4100	scan11062020.exe	RegSvcs.exe
PID 4100 wrote to memory of 4984	4100	scan11062020.exe	RegSvcs.exe
PID 4100 wrote to memory of 4984	4100	scan11062020.exe	RegSvcs.exe
PID 4100 wrote to memory of 4984	4100	scan11062020.exe	RegSvcs.exe
PID 4100 wrote to memory of 4984	4100	scan11062020.exe	RegSvcs.exe
PID 4100 wrote to memory of 4984	4100	scan11062020.exe	RegSvcs.exe
PID 4100 wrote to memory of 4984	4100	scan11062020.exe	RegSvcs.exe
PID 4984 wrote to memory of 3472	4984	RegSvcs.exe	REG.exe
PID 4984 wrote to memory of 3472	4984	RegSvcs.exe	REG.exe
PID 4984 wrote to memory of 3472	4984	RegSvcs.exe	REG.exe
PID 4984 wrote to memory of 1040	4984	RegSvcs.exe	netsh.exe
PID 4984 wrote to memory of 1040	4984	RegSvcs.exe	netsh.exe
PID 4984 wrote to memory of 1040	4984	RegSvcs.exe	netsh.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\scan11062020.exe
"C:\Users\Admin\AppData\Local\Temp\scan11062020.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4100

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
PID:1152

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:4984

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:3472

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4984 -s 1580
3⤵
- Program crash
PID:3504

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4984 -ip 4984
1⤵
PID:2084

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/1040-142-0x0000000000000000-mapping.dmp

Download
memory/1152-137-0x0000000000000000-mapping.dmp

Download
memory/3472-141-0x0000000000000000-mapping.dmp

Download
memory/4100-136-0x0000000009370000-0x000000000940C000-memory.dmp

Filesize
624KB

Download
memory/4100-134-0x0000000005A10000-0x0000000005A22000-memory.dmp

Filesize
72KB

Download
memory/4100-135-0x0000000005A60000-0x0000000005A82000-memory.dmp

Filesize
136KB

Download
memory/4100-130-0x0000000000DB0000-0x0000000000E34000-memory.dmp

Filesize
528KB

Download
memory/4100-133-0x00000000057D0000-0x00000000057DA000-memory.dmp

Filesize
40KB

Download
memory/4100-132-0x0000000005850000-0x00000000058E2000-memory.dmp

Filesize
584KB

Download
memory/4100-131-0x0000000005EC0000-0x0000000006464000-memory.dmp

Filesize
5.6MB

Download
memory/4984-138-0x0000000000000000-mapping.dmp

Download
memory/4984-139-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/4984-140-0x0000000005E70000-0x0000000005ED6000-memory.dmp

Filesize
408KB

Download
memory/4984-143-0x0000000006370000-0x00000000063C0000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads