agenttesla | f6b1d589dc64f831e1c8e5dda0de1a711aa909ec29c86a7471ae04471ae8bc5f

Analysis

max time kernel
117s
max time network
110s
platform
windows10_x64
resource
win10v200722
submitted
31/08/2020, 10:50

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General

Target
New Order.exe
Size 888KB
Sample200831-rm684ct9vj
SHA256 f6b1d589dc64f831e1c8e5dda0de1a711aa909ec29c86a7471ae04471ae8bc5f
MD5 e79c2c35fc1f1ef2152eaa4ab74debbc
SHA1 84677898d82fcf95abacbb54514d3105173a4ef7
SHA512 d11997d3f69beadf729942b6ec5c0e0c3228c5376f67e2a1365ad94bbe609b0f3331c9e5b720c3bddf28c64c9bfc5f21a886c19338443ec6d63d9f96c14ec9b5
MD5 SHA1 SHA512

Score

10^/10

keylogger stealer persistence spyware trojan agenttesla

Malware Config

Extracted

Credentials

Protocol
smtp
Host
smtp.pengteh.com
Port
587
Username
[email protected]
Password
am%pjs@8

Signatures

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

AgentTesla Payload 3 IoCs

keylogger stealer

resource	yara_rule
behavioral2/memory/740-13-0x0000000000400000-0x000000000045A000-memory.dmp	agent_tesla
behavioral2/memory/740-13-0x0000000000400000-0x000000000045A000-memory.dmp	agent_tesla
behavioral2/memory/740-14-0x000000000045480E-mapping.dmp	agent_tesla

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 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
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

Adds Run key 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-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Windows\CurrentVersion\Run\JcoGam = "C:\\Users\\Admin\\AppData\\Roaming\\JcoGam\\JcoGam.exe"	New Order.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3952 set thread context of 740	3952	New Order.exe	77

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\ServiceProfiles\LocalService\winhttp\cachev3.dat	svchost.exe

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

pid	Process
3304	schtasks.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7\WpadDecisionTime = 88c496c4957fd601	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7\WpadDecision = "0"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	svchost.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-3e-6f-2c-c8-c7\WpadDecisionReason = "1"	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
740	New Order.exe
740	New Order.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1560	svchost.exe
Token: SeCreatePagefilePrivilege	1560	svchost.exe
Token: SeDebugPrivilege	740	New Order.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3952 wrote to memory of 3304	3952	New Order.exe	75
PID 3952 wrote to memory of 3304	3952	New Order.exe	75
PID 3952 wrote to memory of 3304	3952	New Order.exe	75
PID 3952 wrote to memory of 740	3952	New Order.exe	77
PID 3952 wrote to memory of 740	3952	New Order.exe	77
PID 3952 wrote to memory of 740	3952	New Order.exe	77
PID 3952 wrote to memory of 740	3952	New Order.exe	77
PID 3952 wrote to memory of 740	3952	New Order.exe	77
PID 3952 wrote to memory of 740	3952	New Order.exe	77
PID 3952 wrote to memory of 740	3952	New Order.exe	77
PID 3952 wrote to memory of 740	3952	New Order.exe	77

C:\Users\Admin\AppData\Local\Temp\New Order.exe
"C:\Users\Admin\AppData\Local\Temp\New Order.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3952
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nOObhQRcZERyvH" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6061.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3304
- C:\Users\Admin\AppData\Local\Temp\New Order.exe
  "C:\Users\Admin\AppData\Local\Temp\New Order.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:740

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -s WinHttpAutoProxySvc
1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:1560

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/740-22-0x00000000064F0000-0x00000000064F1000-memory.dmp

Download

memory/740-21-0x0000000005900000-0x0000000005901000-memory.dmp

Download

memory/740-16-0x0000000073270000-0x000000007395E000-memory.dmp

Download

memory/740-13-0x0000000000400000-0x000000000045A000-memory.dmp

Download

memory/3952-5-0x00000000054E0000-0x00000000054E1000-memory.dmp

Download

memory/3952-10-0x00000000062E0000-0x0000000006345000-memory.dmp

Download

memory/3952-9-0x0000000006250000-0x00000000062D3000-memory.dmp

Download

memory/3952-8-0x0000000005420000-0x000000000542B000-memory.dmp

Download

memory/3952-7-0x0000000005640000-0x0000000005641000-memory.dmp

Download

memory/3952-6-0x0000000005400000-0x0000000005401000-memory.dmp

Download

memory/3952-0-0x0000000073270000-0x000000007395E000-memory.dmp

Download

memory/3952-4-0x0000000005940000-0x0000000005941000-memory.dmp

Download

memory/3952-3-0x0000000005330000-0x0000000005331000-memory.dmp

Download

memory/3952-1-0x0000000000920000-0x0000000000921000-memory.dmp

Download