agenttesla | 0b4f95fc3af9acb1caed7d0bb51574609ad60c58cb25e52445811bbc6bbffefc

General

Target

TT SLIP.exe
Size

630KB
MD5

6b94d92840160e9ecc9a9f808edc93f4
SHA1

dcbce739ab926a184d2ebc995ff417c5772c4312
SHA256

70072a6239488b071403cf29308652486727816236c455de356bbe13df67d3a8
SHA512

6502f23e33bcb20c157a1461976a2275ce1eb6bcadcd960aa7837627929b016a78e3545045c90980efc002f0dbe4768b5a6ad8e089d4983dc07a1536fc4841ef

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.qualitypulse.sg
Port:
587
Username:
[email protected]
Password:
10EWR0203486364

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/4388-134-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Executes dropped EXE 1 IoCs

Processes:

RegAsm.exe

pid process

4388 RegAsm.exe
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

pid	process
4388	RegAsm.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

RegAsm.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Officex = "C:\\Users\\Admin\\AppData\\Roaming\\Officex\\Officex.exe"	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

TT SLIP.exe

description pid process target process

PID 4776 set thread context of 4388 4776 TT SLIP.exe RegAsm.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

TT SLIP.exeRegAsm.exe

pid process

4776 TT SLIP.exe
4776 TT SLIP.exe
4776 TT SLIP.exe
4388 RegAsm.exe
4388 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

TT SLIP.exeRegAsm.exe

description pid process

Token: SeDebugPrivilege 4776 TT SLIP.exe
Token: SeDebugPrivilege 4388 RegAsm.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegAsm.exe

pid process

4388 RegAsm.exe

description	pid	process	target process
PID 4776 set thread context of 4388	4776	TT SLIP.exe	RegAsm.exe

pid	process
4776	TT SLIP.exe
4776	TT SLIP.exe
4776	TT SLIP.exe
4388	RegAsm.exe
4388	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	4776	TT SLIP.exe
Token: SeDebugPrivilege	4388	RegAsm.exe

pid	process
4388	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

TT SLIP.exe

description	pid	process	target process
PID 4776 wrote to memory of 4388	4776	TT SLIP.exe	RegAsm.exe
PID 4776 wrote to memory of 4388	4776	TT SLIP.exe	RegAsm.exe
PID 4776 wrote to memory of 4388	4776	TT SLIP.exe	RegAsm.exe
PID 4776 wrote to memory of 4388	4776	TT SLIP.exe	RegAsm.exe
PID 4776 wrote to memory of 4388	4776	TT SLIP.exe	RegAsm.exe
PID 4776 wrote to memory of 4388	4776	TT SLIP.exe	RegAsm.exe
PID 4776 wrote to memory of 4388	4776	TT SLIP.exe	RegAsm.exe
PID 4776 wrote to memory of 4388	4776	TT SLIP.exe	RegAsm.exe

outlook_office_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\TT SLIP.exe
"C:\Users\Admin\AppData\Local\Temp\TT SLIP.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4776

C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
"C:\Users\Admin\AppData\Local\Temp\RegAsm.exe"
2⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:4388

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

2

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
Filesize
63KB

MD5
0d5df43af2916f47d00c1573797c1a13

SHA1
230ab5559e806574d26b4c20847c368ed55483b0

SHA256
c066aee7aa3aa83f763ebc5541daa266ed6c648fbffcde0d836a13b221bb2adc

SHA512
f96cf9e1890746b12daf839a6d0f16f062b72c1b8a40439f96583f242980f10f867720232a6fa0f7d4d7ac0a7a6143981a5a130d6417ea98b181447134c7cfe2

Download Submit
C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
Filesize
63KB

MD5
0d5df43af2916f47d00c1573797c1a13

SHA1
230ab5559e806574d26b4c20847c368ed55483b0

SHA256
c066aee7aa3aa83f763ebc5541daa266ed6c648fbffcde0d836a13b221bb2adc

SHA512
f96cf9e1890746b12daf839a6d0f16f062b72c1b8a40439f96583f242980f10f867720232a6fa0f7d4d7ac0a7a6143981a5a130d6417ea98b181447134c7cfe2

Download Submit
memory/4388-133-0x0000000000000000-mapping.dmp

Download
memory/4388-134-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4388-137-0x0000000005110000-0x00000000051AC000-memory.dmp

Filesize
624KB

Download
memory/4388-138-0x0000000005DC0000-0x0000000005E26000-memory.dmp

Filesize
408KB

Download
memory/4388-139-0x00000000065B0000-0x0000000006600000-memory.dmp

Filesize
320KB

Download
memory/4388-140-0x0000000006500000-0x000000000650A000-memory.dmp

Filesize
40KB

Download
memory/4776-130-0x0000000000790000-0x0000000000834000-memory.dmp

Filesize
656KB

Download
memory/4776-131-0x00000000057E0000-0x0000000005D84000-memory.dmp

Filesize
5.6MB

Download
memory/4776-132-0x0000000005300000-0x0000000005392000-memory.dmp

Filesize
584KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads