agenttesla | ce7c3c09794ee39a804fc03c191aecbc30c6d96cdf8a87cad9d92a06a118883f

General

Target

Remittance pos.invioce.exe
Size

8KB
MD5

b400834d73b4a98fc9d7abf83a149a2b
SHA1

8679b02dd6f9166152d1111374659c0639500043
SHA256

1f5d7c12cd6c2ea7752258c06c20b68bde32d1a3ef6e647c3cf809e1283452f6
SHA512

80fc4660b6e512093bb4e3753615b80bc09a092fc2852f932274e181303c756c8e6054c97b3d2139afad7d0128ae566b0772880e56660c83edaac67207e0703e
SSDEEP

192:NgkfwL2sLMg+JLFr7dYeHkRW4zkXvvF3Hy8qgBG:qkfwLZLbqLFr7dNET+t3S8qA

Score

10^/10

agenttesla purecrypter collection downloader keylogger loader spyware stealer trojan

Malware Config

Extracted

Family

purecrypter

C2

http://85.31.45.42/Dsgnow.dll

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.keefort.com.ec
Port:
587
Username:
[email protected]
Password:
u=Wa6eChU3nj
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
loader downloader purecrypter
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Remittance pos.invioce.exe
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Remittance pos.invioce.exe
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Remittance pos.invioce.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
5	api.ipify.org
6	api.ipify.org

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
768	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1236	Remittance pos.invioce.exe
Token: SeDebugPrivilege	768	powershell.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1236 wrote to memory of 768	1236	Remittance pos.invioce.exe	28
PID 1236 wrote to memory of 768	1236	Remittance pos.invioce.exe	28
PID 1236 wrote to memory of 768	1236	Remittance pos.invioce.exe	28
PID 1236 wrote to memory of 768	1236	Remittance pos.invioce.exe	28

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Remittance pos.invioce.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Remittance pos.invioce.exe

C:\Users\Admin\AppData\Local\Temp\Remittance pos.invioce.exe
"C:\Users\Admin\AppData\Local\Temp\Remittance pos.invioce.exe"
1⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1236
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgA0AA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:768

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

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

memory/768-61-0x00000000023D0000-0x0000000002410000-memory.dmp

Filesize
256KB

Download
memory/1236-54-0x0000000000FB0000-0x0000000000FB8000-memory.dmp

Filesize
32KB

Download
memory/1236-55-0x00000000048D0000-0x0000000004910000-memory.dmp

Filesize
256KB

Download
memory/1236-56-0x0000000008DC0000-0x0000000008EBE000-memory.dmp

Filesize
1016KB

Download
memory/1236-57-0x00000000005B0000-0x00000000005CA000-memory.dmp

Filesize
104KB

Download
memory/1236-58-0x0000000008980000-0x0000000008A12000-memory.dmp

Filesize
584KB

Download
memory/1236-62-0x00000000048D0000-0x0000000004910000-memory.dmp

Filesize
256KB

Download
memory/1236-63-0x0000000004890000-0x00000000048C0000-memory.dmp

Filesize
192KB

Download
memory/1236-78-0x00000000048D0000-0x0000000004910000-memory.dmp

Filesize
256KB

Download
memory/1236-79-0x00000000048D0000-0x0000000004910000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads