agenttesla | 83d8b3913153282a251fc2f7bf74f701e02969441341297823957e5d35a5c3b0

General

Target

Order confirmation.exe
Size

691KB
MD5

26f443f71c6ad850b704d85210309ecb
SHA1

a90d70316a39305cbd5ccefbe24e012334e3e086
SHA256

83d8b3913153282a251fc2f7bf74f701e02969441341297823957e5d35a5c3b0
SHA512

f942bdaf859d0cfbae49b56354146c39d9f2b52bd5ee4b189ed3a49bd62695692a6385f6b488a6bfb5ee3fd58544219f1c8442acbc0190a3662a010e54c1ec60

Score

10^/10

keylogger trojan stealer spyware agenttesla persistence

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
smtp.bnb-spa.com
Port:
587
Username:
[email protected]
Password:
tPo!47:glt$E

Signatures

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3228	Order confirmation.exe

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\bili.vbs	notepad.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

Data from Local System
T1005

Credentials in Files
T1081

UPX packed file 3 IoCs

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

resource	yara_rule
behavioral2/memory/3228-1-0x0000000000400000-0x00000000004B0000-memory.dmp	upx
behavioral2/memory/3228-3-0x0000000000400000-0x00000000004B0000-memory.dmp	upx
behavioral2/memory/3228-4-0x0000000000400000-0x00000000004B0000-memory.dmp	upx

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-1-5-21-1231583446-2617009595-2137880041-1000\Software\Microsoft\Windows\CurrentVersion\Run\Mymp4 = "C:\\Users\\Admin\\AppData\\Roaming\\Mymp4\\Mymp4.exe"	Order confirmation.exe

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 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

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1628	Order confirmation.exe
1628	Order confirmation.exe
3228	Order confirmation.exe
3228	Order confirmation.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1628 wrote to memory of 2760	1628	Order confirmation.exe	72
PID 1628 wrote to memory of 2760	1628	Order confirmation.exe	72
PID 1628 wrote to memory of 2760	1628	Order confirmation.exe	72
PID 1628 wrote to memory of 2760	1628	Order confirmation.exe	72
PID 1628 wrote to memory of 2760	1628	Order confirmation.exe	72
PID 1628 wrote to memory of 3228	1628	Order confirmation.exe	73
PID 1628 wrote to memory of 3228	1628	Order confirmation.exe	73
PID 1628 wrote to memory of 3228	1628	Order confirmation.exe	73

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1628	Order confirmation.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1628 set thread context of 3228	1628	Order confirmation.exe	73

C:\Users\Admin\AppData\Local\Temp\Order confirmation.exe
"C:\Users\Admin\AppData\Local\Temp\Order confirmation.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetThreadContext
PID:1628
- C:\Windows\SysWOW64\notepad.exe
  "C:\Windows\system32\notepad.exe"
  2⤵
  - Drops startup file
  PID:2760
- C:\Users\Admin\AppData\Local\Temp\Order confirmation.exe
  "C:\Users\Admin\AppData\Local\Temp\Order confirmation.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Adds Run entry to start application
  - Suspicious behavior: EnumeratesProcesses
  PID:3228

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/3228-1-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/3228-3-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/3228-4-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/3228-5-0x00000000021C0000-0x0000000002212000-memory.dmp

Filesize
328KB

Download

Analysis

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