agenttesla | becaeab2d95d53d23e975d16d653e475661cf8b2ab259d113501349249caa6b3

Analysis

max time kernel
4294190s
max time network
125s
platform
windows7_x64
resource
win7-20220223-en
submitted
06/03/2022, 08:46

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General

Target
Invoice.exe
Size 827KB
Sample220306-kpbrrsach8
SHA256 becaeab2d95d53d23e975d16d653e475661cf8b2ab259d113501349249caa6b3
MD5 e8d148cdcb9e6ee3a0a41f8f8ad81e01
SHA1 bd5f0bd1450e91870ecc4ceb8483b327339b4342
SHA512 0679956287e847cc3169127482b52dbe1815f44d89c1fc4b2c0dd28efd2d94a1a5c2e93c3b075e75024ce4df7d6585bde74e798df1b30c021e58da610a4fcbf6
MD5 SHA1 SHA512

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.scsgroups.com
Port
587
Username
[email protected]
Password
Scs@looi1007
Email to
[email protected]

Signatures

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

AgentTesla Payload 5 IoCs

resource	yara_rule
behavioral1/memory/1444-64-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1444-66-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1444-68-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1444-70-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1444-72-0x0000000000400000-0x000000000043C000-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-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Office\15.0\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-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Windows\CurrentVersion\Run\zByIIoI = "C:\\Users\\Admin\\AppData\\Roaming\\zByIIoI\\zByIIoI.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 824 set thread context of 1444	824	Invoice.exe	29

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
824	Invoice.exe
824	Invoice.exe
1444	RegSvcs.exe
1444	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	824	Invoice.exe
Token: SeDebugPrivilege	1444	RegSvcs.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 824 wrote to memory of 1444	824	Invoice.exe	29
PID 824 wrote to memory of 1444	824	Invoice.exe	29
PID 824 wrote to memory of 1444	824	Invoice.exe	29
PID 824 wrote to memory of 1444	824	Invoice.exe	29
PID 824 wrote to memory of 1444	824	Invoice.exe	29
PID 824 wrote to memory of 1444	824	Invoice.exe	29
PID 824 wrote to memory of 1444	824	Invoice.exe	29
PID 824 wrote to memory of 1444	824	Invoice.exe	29
PID 824 wrote to memory of 1444	824	Invoice.exe	29
PID 824 wrote to memory of 1444	824	Invoice.exe	29
PID 824 wrote to memory of 1444	824	Invoice.exe	29
PID 824 wrote to memory of 1444	824	Invoice.exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\Invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:824
- 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:1444

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/824-54-0x0000000000ED0000-0x0000000000FA6000-memory.dmp

Download

memory/824-55-0x0000000074370000-0x0000000074A5E000-memory.dmp

Download

memory/824-56-0x0000000004DB0000-0x0000000004DB1000-memory.dmp

Download

memory/824-57-0x0000000000610000-0x0000000000620000-memory.dmp

Download

memory/824-58-0x0000000005760000-0x000000000581C000-memory.dmp

Download

memory/824-59-0x0000000000CD0000-0x0000000000D0C000-memory.dmp

Download

memory/1444-60-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/1444-62-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/1444-64-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/1444-66-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/1444-68-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/1444-70-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/1444-72-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/1444-73-0x0000000074370000-0x0000000074A5E000-memory.dmp

Download

memory/1444-74-0x0000000004B60000-0x0000000004B61000-memory.dmp

Download

memory/1444-75-0x0000000004B61000-0x0000000004B62000-memory.dmp

Download