agenttesla | c45cbf7de196d50a6eb860e3d8dbfdf8f3699c3e62df58f63bd1c6c176c9ead1

General

Target

Remittance advice.exe
Size

803KB
MD5

be9f6ec429298296531aef4e8813679c
SHA1

f46d168675ed61ded4d5030ad25b5107d5252efd
SHA256

c45cbf7de196d50a6eb860e3d8dbfdf8f3699c3e62df58f63bd1c6c176c9ead1
SHA512

8ee7421a05ac4c8f5b131ce57e2657d1128a8d0332be62ad42eb2850e04de85c9b177075f0dac51f5f308285843d534674f733d91a414bdfb43ecd6612db935a

Score

10^/10

persistence spyware keylogger trojan stealer agenttesla

Malware Config

Signatures

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
112	Remittance advice.exe
304	Remittance advice.exe
304	Remittance advice.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 112 wrote to memory of 480	112	Remittance advice.exe	24
PID 112 wrote to memory of 480	112	Remittance advice.exe	24
PID 112 wrote to memory of 480	112	Remittance advice.exe	24
PID 112 wrote to memory of 480	112	Remittance advice.exe	24
PID 112 wrote to memory of 480	112	Remittance advice.exe	24
PID 112 wrote to memory of 480	112	Remittance advice.exe	24
PID 112 wrote to memory of 304	112	Remittance advice.exe	25
PID 112 wrote to memory of 304	112	Remittance advice.exe	25
PID 112 wrote to memory of 304	112	Remittance advice.exe	25
PID 112 wrote to memory of 304	112	Remittance advice.exe	25

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	304	Remittance advice.exe

Adds Run entry to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\Mymp4 = "C:\\Users\\Admin\\AppData\\Roaming\\Mymp4\\Mymp4.exe"	Remittance advice.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

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

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

Data from Local System
T1005

Credentials in Files
T1081

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
112	Remittance advice.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 112 set thread context of 304	112	Remittance advice.exe	25

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

resource	yara_rule
behavioral1/memory/304-2-0x0000000000400000-0x00000000004B1000-memory.dmp	upx
behavioral1/memory/304-4-0x0000000000400000-0x00000000004B1000-memory.dmp	upx
behavioral1/memory/304-5-0x0000000000400000-0x00000000004B1000-memory.dmp	upx

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bv.vbs	notepad.exe

C:\Users\Admin\AppData\Local\Temp\Remittance advice.exe
"C:\Users\Admin\AppData\Local\Temp\Remittance advice.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetThreadContext
PID:112
- C:\Windows\SysWOW64\notepad.exe
  "C:\Windows\system32\notepad.exe"
  2⤵
  - Drops startup file
  PID:480
- C:\Users\Admin\AppData\Local\Temp\Remittance advice.exe
  "C:\Users\Admin\AppData\Local\Temp\Remittance advice.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Adds Run entry to start application
  PID:304

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

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/304-2-0x0000000000400000-0x00000000004B1000-memory.dmp

Filesize
708KB

Download
memory/304-4-0x0000000000400000-0x00000000004B1000-memory.dmp

Filesize
708KB

Download
memory/304-5-0x0000000000400000-0x00000000004B1000-memory.dmp

Filesize
708KB

Download
memory/304-6-0x0000000000380000-0x00000000003D2000-memory.dmp

Filesize
328KB

Download
memory/304-7-0x0000000002092000-0x0000000002093000-memory.dmp

Filesize
4KB

Download
memory/304-8-0x00000000002D0000-0x000000000031B000-memory.dmp

Filesize
300KB

Download
memory/480-1-0x0000000000090000-0x0000000000091000-memory.dmp

Filesize
4KB

Download

Analysis

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