agenttesla | faaa464df297e2bda628f86354e76da115e88941ec92386302a6cac74fecfca0

Analysis

max time kernel
136s
max time network
124s
platform
windows10_x64
resource
win10-en-20211014
submitted
19/10/2021, 10:38

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General

Target
70654 SSEBACT.exe
Size 389KB
Sample211019-mpgdcsfff6
SHA256 faaa464df297e2bda628f86354e76da115e88941ec92386302a6cac74fecfca0
MD5 54ad9166b1a65288183c4ee3a5fd0750
SHA1 36fad28b8c9b45a7b90c3f2fd4e5785b859e48ae
SHA512 3b9a58297ac116f94e8728a660cbb963c00722acb3c202ad23f7133eac2368bdbf665c32a1fa10b6f122dd5058113f54ed64fbfdfc1be66f7a701453aef59eba
MD5 SHA1 SHA512

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.timsonlogisticske.com
Port
587
Username
[email protected]
Password
timsam2015

Signatures

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

AgentTesla Payload 3 IoCs

resource	yara_rule
behavioral2/memory/732-126-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/732-127-0x00000000004375EE-mapping.dmp	family_agenttesla
behavioral2/memory/732-132-0x0000000005130000-0x000000000562E000-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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	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-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\NXLun = "C:\\Users\\Admin\\AppData\\Roaming\\NXLun\\NXLun.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5076 set thread context of 732	5076	70654 SSEBACT.exe	71

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
5076	70654 SSEBACT.exe
5076	70654 SSEBACT.exe
5076	70654 SSEBACT.exe
5076	70654 SSEBACT.exe
732	RegSvcs.exe
732	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5076	70654 SSEBACT.exe
Token: SeDebugPrivilege	732	RegSvcs.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5076	70654 SSEBACT.exe
5076	70654 SSEBACT.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 5076 wrote to memory of 676	5076	70654 SSEBACT.exe	70
PID 5076 wrote to memory of 676	5076	70654 SSEBACT.exe	70
PID 5076 wrote to memory of 676	5076	70654 SSEBACT.exe	70
PID 5076 wrote to memory of 732	5076	70654 SSEBACT.exe	71
PID 5076 wrote to memory of 732	5076	70654 SSEBACT.exe	71
PID 5076 wrote to memory of 732	5076	70654 SSEBACT.exe	71
PID 5076 wrote to memory of 732	5076	70654 SSEBACT.exe	71
PID 5076 wrote to memory of 732	5076	70654 SSEBACT.exe	71
PID 5076 wrote to memory of 732	5076	70654 SSEBACT.exe	71
PID 5076 wrote to memory of 732	5076	70654 SSEBACT.exe	71
PID 5076 wrote to memory of 732	5076	70654 SSEBACT.exe	71

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\70654 SSEBACT.exe
"C:\Users\Admin\AppData\Local\Temp\70654 SSEBACT.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5076
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:676
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:732

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/732-126-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/732-134-0x0000000005E90000-0x0000000005E91000-memory.dmp

Download

memory/732-133-0x0000000005610000-0x0000000005611000-memory.dmp

Download

memory/732-132-0x0000000005130000-0x000000000562E000-memory.dmp

Download

memory/5076-122-0x00000000055A0000-0x0000000005A9E000-memory.dmp

Download

memory/5076-115-0x0000000000CB0000-0x0000000000CB1000-memory.dmp

Download

memory/5076-123-0x00000000093C0000-0x00000000093C8000-memory.dmp

Download

memory/5076-124-0x0000000009920000-0x0000000009921000-memory.dmp

Download

memory/5076-125-0x00000000099C0000-0x0000000009A18000-memory.dmp

Download

memory/5076-121-0x00000000055A0000-0x0000000005A9E000-memory.dmp

Download

memory/5076-120-0x00000000055A0000-0x0000000005A9E000-memory.dmp

Download

memory/5076-119-0x0000000005560000-0x0000000005561000-memory.dmp

Download

memory/5076-118-0x00000000055A0000-0x00000000055A1000-memory.dmp

Download

memory/5076-117-0x0000000005AA0000-0x0000000005AA1000-memory.dmp

Download