agenttesla | db769d7bd183986649c1deb6c82517a37ed2dddd53217bbf52a1480276519fa3

General

Target

NEW PURCHASE ORDER.exe
Size

502KB
MD5

c8aa43fa29e981c8e0a1a307c703a948
SHA1

31a6ac6ad48d14f6719086f343d5c74a1657dd0f
SHA256

661a23fbb68a04d534e7dc2f481065984141666fac72ef0a5342a622c0a1fba3
SHA512

b89c07b893cdd86ba697b00740d769b7d46c4e19ea9046919f953c45bcd66969de3807c481a4a1036b943f0a41015eead66b3333d8ef6710355a3dfef3bb0056

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/904-60-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/904-61-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/904-62-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/904-63-0x000000000044CFBE-mapping.dmp	family_agenttesla
behavioral1/memory/904-65-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/904-67-0x0000000000400000-0x0000000000452000-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/1080-56-0x0000000001190000-0x00000000011E8000-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-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\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-1-5-21-1083475884-596052423-1669053738-1000\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 PURCHASE ORDER.exe

description pid process target process

PID 1080 set thread context of 904 1080 NEW PURCHASE ORDER.exe RegSvcs.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

1152 REG.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

NEW PURCHASE ORDER.exeRegSvcs.exe

pid process

1080 NEW PURCHASE ORDER.exe
904 RegSvcs.exe
904 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

NEW PURCHASE ORDER.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 1080 NEW PURCHASE ORDER.exe
Token: SeDebugPrivilege 904 RegSvcs.exe

description	pid	process	target process
PID 1080 set thread context of 904	1080	NEW PURCHASE ORDER.exe	RegSvcs.exe

pid	process
1152	REG.exe

pid	process
1080	NEW PURCHASE ORDER.exe
904	RegSvcs.exe
904	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1080	NEW PURCHASE ORDER.exe
Token: SeDebugPrivilege	904	RegSvcs.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

NEW PURCHASE ORDER.exeRegSvcs.exe

description	pid	process	target process
PID 1080 wrote to memory of 1220	1080	NEW PURCHASE ORDER.exe	RegSvcs.exe
PID 1080 wrote to memory of 1220	1080	NEW PURCHASE ORDER.exe	RegSvcs.exe
PID 1080 wrote to memory of 1220	1080	NEW PURCHASE ORDER.exe	RegSvcs.exe
PID 1080 wrote to memory of 1220	1080	NEW PURCHASE ORDER.exe	RegSvcs.exe
PID 1080 wrote to memory of 1220	1080	NEW PURCHASE ORDER.exe	RegSvcs.exe
PID 1080 wrote to memory of 1220	1080	NEW PURCHASE ORDER.exe	RegSvcs.exe
PID 1080 wrote to memory of 1220	1080	NEW PURCHASE ORDER.exe	RegSvcs.exe
PID 1080 wrote to memory of 904	1080	NEW PURCHASE ORDER.exe	RegSvcs.exe
PID 1080 wrote to memory of 904	1080	NEW PURCHASE ORDER.exe	RegSvcs.exe
PID 1080 wrote to memory of 904	1080	NEW PURCHASE ORDER.exe	RegSvcs.exe
PID 1080 wrote to memory of 904	1080	NEW PURCHASE ORDER.exe	RegSvcs.exe
PID 1080 wrote to memory of 904	1080	NEW PURCHASE ORDER.exe	RegSvcs.exe
PID 1080 wrote to memory of 904	1080	NEW PURCHASE ORDER.exe	RegSvcs.exe
PID 1080 wrote to memory of 904	1080	NEW PURCHASE ORDER.exe	RegSvcs.exe
PID 1080 wrote to memory of 904	1080	NEW PURCHASE ORDER.exe	RegSvcs.exe
PID 1080 wrote to memory of 904	1080	NEW PURCHASE ORDER.exe	RegSvcs.exe
PID 1080 wrote to memory of 904	1080	NEW PURCHASE ORDER.exe	RegSvcs.exe
PID 1080 wrote to memory of 904	1080	NEW PURCHASE ORDER.exe	RegSvcs.exe
PID 1080 wrote to memory of 904	1080	NEW PURCHASE ORDER.exe	RegSvcs.exe
PID 904 wrote to memory of 1152	904	RegSvcs.exe	REG.exe
PID 904 wrote to memory of 1152	904	RegSvcs.exe	REG.exe
PID 904 wrote to memory of 1152	904	RegSvcs.exe	REG.exe
PID 904 wrote to memory of 1152	904	RegSvcs.exe	REG.exe
PID 904 wrote to memory of 1924	904	RegSvcs.exe	netsh.exe
PID 904 wrote to memory of 1924	904	RegSvcs.exe	netsh.exe
PID 904 wrote to memory of 1924	904	RegSvcs.exe	netsh.exe
PID 904 wrote to memory of 1924	904	RegSvcs.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\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-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\NEW PURCHASE ORDER.exe
"C:\Users\Admin\AppData\Local\Temp\NEW PURCHASE ORDER.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1080

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
PID:1220

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:904

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:1152

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1924

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/904-61-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/904-63-0x000000000044CFBE-mapping.dmp

Download
memory/904-68-0x00000000759F1000-0x00000000759F3000-memory.dmp

Filesize
8KB

Download
memory/904-57-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/904-58-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/904-60-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/904-62-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/904-65-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/904-67-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1080-54-0x0000000001270000-0x00000000012F4000-memory.dmp

Filesize
528KB

Download
memory/1080-55-0x0000000000300000-0x0000000000316000-memory.dmp

Filesize
88KB

Download
memory/1080-56-0x0000000001190000-0x00000000011E8000-memory.dmp

Filesize
352KB

Download
memory/1152-69-0x0000000000000000-mapping.dmp

Download
memory/1924-70-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads