agenttesla | 172f73b3500990962bfa7c18c0c6e7cd90346b757321b50adae3f7ce803efbe5

Analysis

max time kernel
142s
max time network
53s
platform
windows7_x64
resource
win7
submitted
08/07/2020, 08:53

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

overdue account letter.exe
Size

1023KB
MD5

c52a6413be880fd815cd76f4c59f1e46
SHA1

157c46446ca98f68133566167b35268028cdc67e
SHA256

172f73b3500990962bfa7c18c0c6e7cd90346b757321b50adae3f7ce803efbe5
SHA512

1d0e82d0ef5837a8a2d79ce4ea6773384b4b13e833286881e9193496c3c2ad4a43e89e59133b75d796180f9c46888d765cc63e38775088103e664f1fc21d6974

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.aquariuslogistics.com
Port:
587
Username:
[email protected]
Password:
AQL@2019#$

Signatures

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

AgentTesla Payload 4 IoCs

resource	yara_rule
behavioral1/memory/1572-11-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1572-12-0x000000000044833E-mapping.dmp	family_agenttesla
behavioral1/memory/1572-13-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/1572-14-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	RegSvcs.exe

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-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\CpSnJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CpSnJ\\CpSnJ.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1144 set thread context of 1432	1144	overdue account letter.exe	24
PID 1432 set thread context of 1572	1432	RegSvcs.exe	29

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
1764	schtasks.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
1944	REG.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1432	RegSvcs.exe
1572	RegSvcs.exe
1572	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1432	RegSvcs.exe
Token: SeDebugPrivilege	1572	RegSvcs.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 1144 wrote to memory of 1432	1144	overdue account letter.exe	24
PID 1144 wrote to memory of 1432	1144	overdue account letter.exe	24
PID 1144 wrote to memory of 1432	1144	overdue account letter.exe	24
PID 1144 wrote to memory of 1432	1144	overdue account letter.exe	24
PID 1144 wrote to memory of 1432	1144	overdue account letter.exe	24
PID 1144 wrote to memory of 1432	1144	overdue account letter.exe	24
PID 1144 wrote to memory of 1432	1144	overdue account letter.exe	24
PID 1144 wrote to memory of 1432	1144	overdue account letter.exe	24
PID 1144 wrote to memory of 1432	1144	overdue account letter.exe	24
PID 1144 wrote to memory of 1432	1144	overdue account letter.exe	24
PID 1144 wrote to memory of 1432	1144	overdue account letter.exe	24
PID 1144 wrote to memory of 1432	1144	overdue account letter.exe	24
PID 1432 wrote to memory of 1764	1432	RegSvcs.exe	27
PID 1432 wrote to memory of 1764	1432	RegSvcs.exe	27
PID 1432 wrote to memory of 1764	1432	RegSvcs.exe	27
PID 1432 wrote to memory of 1764	1432	RegSvcs.exe	27
PID 1432 wrote to memory of 1572	1432	RegSvcs.exe	29
PID 1432 wrote to memory of 1572	1432	RegSvcs.exe	29
PID 1432 wrote to memory of 1572	1432	RegSvcs.exe	29
PID 1432 wrote to memory of 1572	1432	RegSvcs.exe	29
PID 1432 wrote to memory of 1572	1432	RegSvcs.exe	29
PID 1432 wrote to memory of 1572	1432	RegSvcs.exe	29
PID 1432 wrote to memory of 1572	1432	RegSvcs.exe	29
PID 1432 wrote to memory of 1572	1432	RegSvcs.exe	29
PID 1432 wrote to memory of 1572	1432	RegSvcs.exe	29
PID 1432 wrote to memory of 1572	1432	RegSvcs.exe	29
PID 1432 wrote to memory of 1572	1432	RegSvcs.exe	29
PID 1432 wrote to memory of 1572	1432	RegSvcs.exe	29
PID 1572 wrote to memory of 1944	1572	RegSvcs.exe	31
PID 1572 wrote to memory of 1944	1572	RegSvcs.exe	31
PID 1572 wrote to memory of 1944	1572	RegSvcs.exe	31
PID 1572 wrote to memory of 1944	1572	RegSvcs.exe	31

C:\Users\Admin\AppData\Local\Temp\overdue account letter.exe
"C:\Users\Admin\AppData\Local\Temp\overdue account letter.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1144
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1432
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ULIpyruwsyj" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8516.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1764
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "{path}"
    3⤵
    - Drops file in Drivers directory
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1572
  - - C:\Windows\SysWOW64\REG.exe
      REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System / v DisableTaskMgr / t REG_DWORD / d 1 / f
      4⤵
      Modifies registry key
      PID:1944

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

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1432-2-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download
memory/1432-4-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download
memory/1432-5-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download
memory/1572-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1572-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1572-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download