agenttesla | f510d8c903f78262f15edd2b3c4f1778fb590fedb8d54224da31c6717c9c8f3a

General

Target

PO.exe
Size

869KB
MD5

a925cd618ba6ead6b73ded89b70e69b7
SHA1

9a1b4b8e5a3d2d9539205f9c2a3ea96d5f74d5c0
SHA256

547e52557b519e2b169e8a9c5932e2d7ce615ea34d54348d5d87033a545b6362
SHA512

9a96bb6e45fcafe54376b3c923c5db4f71651832bc42897218511b87bbb15bacfafb9059a378d37022fe19b5dff6b78e8013b14262ab907f6d4bc0b051a365fb

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.cka.com.sg
Port:
587
Username:
[email protected]
Password:
agnescka82

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
behavioral3/memory/956-61-0x0000000000400000-0x000000000044A000-memory.dmp	family_agenttesla
behavioral3/memory/956-62-0x0000000000400000-0x000000000044A000-memory.dmp	family_agenttesla
behavioral3/memory/956-63-0x0000000000400000-0x000000000044A000-memory.dmp	family_agenttesla
behavioral3/memory/956-64-0x00000000004455CE-mapping.dmp	family_agenttesla
behavioral3/memory/956-66-0x0000000000400000-0x000000000044A000-memory.dmp	family_agenttesla
behavioral3/memory/956-68-0x0000000000400000-0x000000000044A000-memory.dmp	family_agenttesla

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

PO.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

PO.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run\Officex = "C:\\Users\\Admin\\AppData\\Roaming\\Officex\\Officex.exe"	PO.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

PO.exe

description pid process target process

PID 1652 set thread context of 956 1652 PO.exe PO.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1316 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

PO.exe

pid process

956 PO.exe
956 PO.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

PO.exe

description pid process

Token: SeDebugPrivilege 956 PO.exe

description	pid	process	target process
PID 1652 set thread context of 956	1652	PO.exe	PO.exe

pid	process
1316	schtasks.exe

pid	process
956	PO.exe
956	PO.exe

description	pid	process
Token: SeDebugPrivilege	956	PO.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

PO.exe

description	pid	process	target process
PID 1652 wrote to memory of 1316	1652	PO.exe	schtasks.exe
PID 1652 wrote to memory of 1316	1652	PO.exe	schtasks.exe
PID 1652 wrote to memory of 1316	1652	PO.exe	schtasks.exe
PID 1652 wrote to memory of 1316	1652	PO.exe	schtasks.exe
PID 1652 wrote to memory of 956	1652	PO.exe	PO.exe
PID 1652 wrote to memory of 956	1652	PO.exe	PO.exe
PID 1652 wrote to memory of 956	1652	PO.exe	PO.exe
PID 1652 wrote to memory of 956	1652	PO.exe	PO.exe
PID 1652 wrote to memory of 956	1652	PO.exe	PO.exe
PID 1652 wrote to memory of 956	1652	PO.exe	PO.exe
PID 1652 wrote to memory of 956	1652	PO.exe	PO.exe
PID 1652 wrote to memory of 956	1652	PO.exe	PO.exe
PID 1652 wrote to memory of 956	1652	PO.exe	PO.exe

outlook_office_path 1 IoCs

Processes:

PO.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe

outlook_win_path 1 IoCs

Processes:

PO.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe

C:\Users\Admin\AppData\Local\Temp\PO.exe
"C:\Users\Admin\AppData\Local\Temp\PO.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1652

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SWEYXGLydrrF" /XML "C:\Users\Admin\AppData\Local\Temp\tmp12E6.tmp"
2⤵
- Creates scheduled task(s)
PID:1316

C:\Users\Admin\AppData\Local\Temp\PO.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:956

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

2

T1081

Discovery

System Information Discovery

1

T1082

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\tmp12E6.tmp
Filesize
1KB

MD5
41a560587ff3e2381f3c20b823c3cda0

SHA1
31d122e638cf8c5ee845e8e67167c05b9faee307

SHA256
24d8d47bec1092563d398445f2d18264386171e574f80462b0d86afb0090de00

SHA512
d194321e26caea5b8154b2b21eee1866b5d7a6227ae2eb8a7b52c68dd47a48d45c5b3ed23404e4e964eb99569d68ee3b8993468c1c692051aed39ba379725715

Download Submit
memory/956-61-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/956-58-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/956-59-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/956-62-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/956-63-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/956-64-0x00000000004455CE-mapping.dmp

Download
memory/956-66-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/956-68-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/956-70-0x0000000075010000-0x00000000755BB000-memory.dmp

Filesize
5.7MB

Download
memory/1316-56-0x0000000000000000-mapping.dmp

Download
memory/1652-55-0x0000000075010000-0x00000000755BB000-memory.dmp

Filesize
5.7MB

Download
memory/1652-54-0x0000000076461000-0x0000000076463000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads