agenttesla | 0e643a127fdcae3f0ada30f6448e0db52e1220b591da686d5b6895e5a26c1efa

General

Target

NEW PO.exe
Size

552KB
MD5

a6da76fa51f029d56650a892efc0f353
SHA1

1e23cde32f44ea7e2eb4a23248a8c7d40b595e2c
SHA256

80f41a09d12356205262bb77b16daeaf2a284a89fd737b042149a4207f16c702
SHA512

a1b4d0ca8066f83453004eac7e73baf94575d4af45f2a00c1fe42bff70a8375105a685efecad2c52604ecf3b5e9300650588fdaf9cb1330e00ba00795b5832b9

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:
agnes@cka.com.sg
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
behavioral1/memory/1280-61-0x0000000000400000-0x000000000044A000-memory.dmp	family_agenttesla
behavioral1/memory/1280-62-0x0000000000400000-0x000000000044A000-memory.dmp	family_agenttesla
behavioral1/memory/1280-63-0x0000000000400000-0x000000000044A000-memory.dmp	family_agenttesla
behavioral1/memory/1280-64-0x00000000004455CE-mapping.dmp	family_agenttesla
behavioral1/memory/1280-66-0x0000000000400000-0x000000000044A000-memory.dmp	family_agenttesla
behavioral1/memory/1280-68-0x0000000000400000-0x000000000044A000-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:

NEW PO.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	NEW PO.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	NEW PO.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	NEW PO.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

NEW PO.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\Officex = "C:\\Users\\Admin\\AppData\\Roaming\\Officex\\Officex.exe"	NEW PO.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

NEW PO.exe

description pid process target process

PID 604 set thread context of 1280 604 NEW PO.exe NEW 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

2016 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

NEW PO.exeNEW PO.exe

pid process

604 NEW PO.exe
604 NEW PO.exe
1280 NEW PO.exe
1280 NEW PO.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

NEW PO.exeNEW PO.exe

description pid process

Token: SeDebugPrivilege 604 NEW PO.exe
Token: SeDebugPrivilege 1280 NEW PO.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

NEW PO.exe

pid process

1280 NEW PO.exe

description	pid	process	target process
PID 604 set thread context of 1280	604	NEW PO.exe	NEW PO.exe

pid	process
2016	schtasks.exe

pid	process
604	NEW PO.exe
604	NEW PO.exe
1280	NEW PO.exe
1280	NEW PO.exe

description	pid	process
Token: SeDebugPrivilege	604	NEW PO.exe
Token: SeDebugPrivilege	1280	NEW PO.exe

pid	process
1280	NEW PO.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

NEW PO.exe

description	pid	process	target process
PID 604 wrote to memory of 2016	604	NEW PO.exe	schtasks.exe
PID 604 wrote to memory of 2016	604	NEW PO.exe	schtasks.exe
PID 604 wrote to memory of 2016	604	NEW PO.exe	schtasks.exe
PID 604 wrote to memory of 2016	604	NEW PO.exe	schtasks.exe
PID 604 wrote to memory of 1748	604	NEW PO.exe	NEW PO.exe
PID 604 wrote to memory of 1748	604	NEW PO.exe	NEW PO.exe
PID 604 wrote to memory of 1748	604	NEW PO.exe	NEW PO.exe
PID 604 wrote to memory of 1748	604	NEW PO.exe	NEW PO.exe
PID 604 wrote to memory of 1280	604	NEW PO.exe	NEW PO.exe
PID 604 wrote to memory of 1280	604	NEW PO.exe	NEW PO.exe
PID 604 wrote to memory of 1280	604	NEW PO.exe	NEW PO.exe
PID 604 wrote to memory of 1280	604	NEW PO.exe	NEW PO.exe
PID 604 wrote to memory of 1280	604	NEW PO.exe	NEW PO.exe
PID 604 wrote to memory of 1280	604	NEW PO.exe	NEW PO.exe
PID 604 wrote to memory of 1280	604	NEW PO.exe	NEW PO.exe
PID 604 wrote to memory of 1280	604	NEW PO.exe	NEW PO.exe
PID 604 wrote to memory of 1280	604	NEW PO.exe	NEW PO.exe

outlook_office_path 1 IoCs

Processes:

NEW PO.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	NEW PO.exe

outlook_win_path 1 IoCs

Processes:

NEW PO.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	NEW PO.exe

C:\Users\Admin\AppData\Local\Temp\NEW PO.exe
"C:\Users\Admin\AppData\Local\Temp\NEW PO.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:604

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FdQjxu" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1E2C.tmp"
2⤵
- Creates scheduled task(s)
PID:2016

C:\Users\Admin\AppData\Local\Temp\NEW PO.exe
"{path}"
2⤵
PID:1748

C:\Users\Admin\AppData\Local\Temp\NEW PO.exe
"{path}"
2⤵
- 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:1280

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

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

2

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp1E2C.tmp
Filesize
1KB

MD5
3d0afed50de927d957678d68f143d8bc

SHA1
9bc3171f7f3a2c99a04a1c2ca0fc23a0f0b1dc8c

SHA256
b7f5380b5a397000c1d684f22fa3511a0277bc72f64ab2eba038549d8defaeb2

SHA512
94fdbd37f9a488db0c0fc24f1b3de35c728cf1ddcc98d187ebba40564f1b2d45cad311cfced04c18e3aa374446906def8d579419b93c8a8fb146ff5546b2525c

Download Submit
memory/604-55-0x00000000740E0000-0x000000007468B000-memory.dmp

Filesize
5.7MB

Download
memory/604-54-0x00000000757C1000-0x00000000757C3000-memory.dmp

Filesize
8KB

Download
memory/1280-61-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/1280-58-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/1280-59-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/1280-62-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/1280-63-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/1280-64-0x00000000004455CE-mapping.dmp

Download
memory/1280-66-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/1280-68-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/1280-70-0x0000000074070000-0x000000007461B000-memory.dmp

Filesize
5.7MB

Download
memory/2016-56-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads