agenttesla | 7ad70dc95ae7e7d446a069e1d76157370c462c1fe84892c7ca08c13da517bebc

General

Target

PO-11059021022021.exe
Size

406KB
MD5

c14e2f7c8e8cc81b9dca88b81369b5aa
SHA1

845056cffbc74ef74ae18f1535819c1fd1eaefbf
SHA256

329def7ed2b3e21852c057f9db14aa69756635b6be94de40b19b95bd10e1d71d
SHA512

fe928fb529c1c0899a1d9f37ec8c5b7dce2341639f79d1d2a3a8aa0ab503012ff0a62900ebcf7a4dc9d05382716c9747a93ea1424bcabc9173f39a418435ffde

Score

10^/10

agenttesla collection keylogger persistence rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.standard-engg.com
Port:
587
Username:
[email protected]
Password:
Standard123#@!

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/1492-61-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1492-62-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1492-64-0x000000000044788E-mapping.dmp	family_agenttesla
behavioral1/memory/1492-63-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1492-66-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1492-68-0x0000000000400000-0x000000000044C000-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/1504-57-0x0000000000A80000-0x0000000000AD4000-memory.dmp	rezer0

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:

PO-11059021022021.exe

description pid process target process

PID 1504 set thread context of 1492 1504 PO-11059021022021.exe RegSvcs.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

1888 REG.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegSvcs.exe

pid process

1492 RegSvcs.exe
1492 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 1492 RegSvcs.exe

description	pid	process	target process
PID 1504 set thread context of 1492	1504	PO-11059021022021.exe	RegSvcs.exe

pid	process
1888	REG.exe

pid	process
1492	RegSvcs.exe
1492	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1492	RegSvcs.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

PO-11059021022021.exeRegSvcs.exe

description	pid	process	target process
PID 1504 wrote to memory of 1492	1504	PO-11059021022021.exe	RegSvcs.exe
PID 1504 wrote to memory of 1492	1504	PO-11059021022021.exe	RegSvcs.exe
PID 1504 wrote to memory of 1492	1504	PO-11059021022021.exe	RegSvcs.exe
PID 1504 wrote to memory of 1492	1504	PO-11059021022021.exe	RegSvcs.exe
PID 1504 wrote to memory of 1492	1504	PO-11059021022021.exe	RegSvcs.exe
PID 1504 wrote to memory of 1492	1504	PO-11059021022021.exe	RegSvcs.exe
PID 1504 wrote to memory of 1492	1504	PO-11059021022021.exe	RegSvcs.exe
PID 1504 wrote to memory of 1492	1504	PO-11059021022021.exe	RegSvcs.exe
PID 1504 wrote to memory of 1492	1504	PO-11059021022021.exe	RegSvcs.exe
PID 1504 wrote to memory of 1492	1504	PO-11059021022021.exe	RegSvcs.exe
PID 1504 wrote to memory of 1492	1504	PO-11059021022021.exe	RegSvcs.exe
PID 1504 wrote to memory of 1492	1504	PO-11059021022021.exe	RegSvcs.exe
PID 1492 wrote to memory of 1888	1492	RegSvcs.exe	REG.exe
PID 1492 wrote to memory of 1888	1492	RegSvcs.exe	REG.exe
PID 1492 wrote to memory of 1888	1492	RegSvcs.exe	REG.exe
PID 1492 wrote to memory of 1888	1492	RegSvcs.exe	REG.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\PO-11059021022021.exe
"C:\Users\Admin\AppData\Local\Temp\PO-11059021022021.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1504

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:1492

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:1888

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/1492-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1492-58-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1492-59-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1492-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1492-62-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1492-64-0x000000000044788E-mapping.dmp

Download
memory/1492-66-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1492-68-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1504-55-0x0000000075371000-0x0000000075373000-memory.dmp

Filesize
8KB

Download
memory/1504-56-0x00000000002D0000-0x00000000002D8000-memory.dmp

Filesize
32KB

Download
memory/1504-57-0x0000000000A80000-0x0000000000AD4000-memory.dmp

Filesize
336KB

Download
memory/1504-54-0x0000000001220000-0x000000000128C000-memory.dmp

Filesize
432KB

Download
memory/1888-70-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads