agenttesla | 678d4745d80e317b2b16b49e4b525528e80953669b468e03550163eafe9e1cfa

General

Target

NEW P O.exe
Size

482KB
MD5

d8492d52da3b7fc82bc19b8aca351c63
SHA1

a368f5ea2903bae4dc521189a09c490a215d7577
SHA256

e8ea9e32e32ba57db997117b275a571e3d69793663a9e81b4f2df7616b1389b4
SHA512

79e1ecee0202411b1ce9d3cc15d9eb175206471b194f5ab941ab6c391d19accc1656b03b6aa1e920b20dba2b1fe01f7ff0f91cb63d93a2a0e58d1e98a799f013

Score

10^/10

agenttesla collection evasion keylogger persistence rezer0 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 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1500-60-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1500-61-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1500-62-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1500-63-0x000000000044CFBE-mapping.dmp	family_agenttesla
behavioral1/memory/1500-65-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1500-67-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral1/memory/780-56-0x00000000050B0000-0x0000000005108000-memory.dmp	rezer0

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-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\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-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\CpSnJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CpSnJ\\CpSnJ.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

NEW P O.exe

description pid process target process

PID 780 set thread context of 1500 780 NEW P O.exe RegSvcs.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

1564 REG.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegSvcs.exe

pid process

1500 RegSvcs.exe
1500 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 1500 RegSvcs.exe

description	pid	process	target process
PID 780 set thread context of 1500	780	NEW P O.exe	RegSvcs.exe

pid	process
1564	REG.exe

pid	process
1500	RegSvcs.exe
1500	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1500	RegSvcs.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

NEW P O.exeRegSvcs.exe

description	pid	process	target process
PID 780 wrote to memory of 1500	780	NEW P O.exe	RegSvcs.exe
PID 780 wrote to memory of 1500	780	NEW P O.exe	RegSvcs.exe
PID 780 wrote to memory of 1500	780	NEW P O.exe	RegSvcs.exe
PID 780 wrote to memory of 1500	780	NEW P O.exe	RegSvcs.exe
PID 780 wrote to memory of 1500	780	NEW P O.exe	RegSvcs.exe
PID 780 wrote to memory of 1500	780	NEW P O.exe	RegSvcs.exe
PID 780 wrote to memory of 1500	780	NEW P O.exe	RegSvcs.exe
PID 780 wrote to memory of 1500	780	NEW P O.exe	RegSvcs.exe
PID 780 wrote to memory of 1500	780	NEW P O.exe	RegSvcs.exe
PID 780 wrote to memory of 1500	780	NEW P O.exe	RegSvcs.exe
PID 780 wrote to memory of 1500	780	NEW P O.exe	RegSvcs.exe
PID 780 wrote to memory of 1500	780	NEW P O.exe	RegSvcs.exe
PID 1500 wrote to memory of 1564	1500	RegSvcs.exe	REG.exe
PID 1500 wrote to memory of 1564	1500	RegSvcs.exe	REG.exe
PID 1500 wrote to memory of 1564	1500	RegSvcs.exe	REG.exe
PID 1500 wrote to memory of 1564	1500	RegSvcs.exe	REG.exe
PID 1500 wrote to memory of 1312	1500	RegSvcs.exe	netsh.exe
PID 1500 wrote to memory of 1312	1500	RegSvcs.exe	netsh.exe
PID 1500 wrote to memory of 1312	1500	RegSvcs.exe	netsh.exe
PID 1500 wrote to memory of 1312	1500	RegSvcs.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\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-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\NEW P O.exe
"C:\Users\Admin\AppData\Local\Temp\NEW P O.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:780

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:1500

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:1564

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1312

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/780-54-0x0000000000CE0000-0x0000000000D5E000-memory.dmp

Filesize
504KB

Download
memory/780-55-0x00000000002F0000-0x0000000000306000-memory.dmp

Filesize
88KB

Download
memory/780-56-0x00000000050B0000-0x0000000005108000-memory.dmp

Filesize
352KB

Download
memory/1312-70-0x0000000000000000-mapping.dmp

Download
memory/1500-61-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1500-60-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1500-58-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1500-62-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1500-63-0x000000000044CFBE-mapping.dmp

Download
memory/1500-65-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1500-67-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1500-68-0x0000000074E91000-0x0000000074E93000-memory.dmp

Filesize
8KB

Download
memory/1500-57-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1564-69-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads