agenttesla | 975ec4a6250960b45606ce9c155560c3283a3df4ffab69ec81f8cabdbc714b0e

General

Target

62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe
Size

574KB
MD5

00fe3f2a77b6bb57385d403411d45e39
SHA1

ad101cb7eab390ed45ec84294da65059aa2fde70
SHA256

62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918
SHA512

b7fedd8e92b2569130df1faa8cfd5736d457c98991d0a14ce059e05b37bea79e36cd970d06510b4397c08333737d166c8e7121c037713e35fd5fabe53290aa13
SSDEEP

12288:YmEUG3Ap0FzZL2gSOfVxTaSaSehhjtrS2KlP:Yrp3E0FzZDSm3W+IU

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
milax.tk
Port:
587
Username:
[email protected]
Password:
7213575aceACE@#$
Email To:
[email protected]

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral6/memory/3600-12-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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 stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1161330783-2912525651-1278508834-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe
Key opened	\REGISTRY\USER\S-1-5-21-1161330783-2912525651-1278508834-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe
Key opened	\REGISTRY\USER\S-1-5-21-1161330783-2912525651-1278508834-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4548 set thread context of 3600	4548	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe	92

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3600	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe
3600	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3600	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3600	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4548 wrote to memory of 3600	4548	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe	92
PID 4548 wrote to memory of 3600	4548	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe	92
PID 4548 wrote to memory of 3600	4548	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe	92
PID 4548 wrote to memory of 3600	4548	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe	92
PID 4548 wrote to memory of 3600	4548	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe	92
PID 4548 wrote to memory of 3600	4548	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe	92
PID 4548 wrote to memory of 3600	4548	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe	92
PID 4548 wrote to memory of 3600	4548	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe	92

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1161330783-2912525651-1278508834-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1161330783-2912525651-1278508834-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe

C:\Users\Admin\AppData\Local\Temp\62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe
"C:\Users\Admin\AppData\Local\Temp\62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4548
- C:\Users\Admin\AppData\Local\Temp\62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe
  "C:\Users\Admin\AppData\Local\Temp\62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:3600

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

5

T1552

Credentials In Files

4

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\62bc8624b6ed645ddbe1420ca67376863c88e58e347fc8282001a2b9e3330918.exe.log

Filesize
1KB

MD5
cf02a49bbd8d4586927e5fee38ae54da

SHA1
2802d8e79eed9911b39d2ae70fc6bdf7e1a7e605

SHA256
8be9b278ad090d0bc8fcc098c7289d782ae86240f69220d7d7175e38be892ec4

SHA512
542649eaec7089a89fa34c70d2a60d5b80ff4437125f5b69c70763e65b9a10bac01b786509ccc54c3e18e9c2acf306b24463fee611cfc137b6e9889c35162205

Download Submit
memory/3600-19-0x0000000006040000-0x00000000060A6000-memory.dmp

Filesize
408KB

Download
memory/3600-15-0x00000000751C0000-0x0000000075970000-memory.dmp

Filesize
7.7MB

Download
memory/3600-25-0x00000000751C0000-0x0000000075970000-memory.dmp

Filesize
7.7MB

Download
memory/3600-24-0x00000000751C0000-0x0000000075970000-memory.dmp

Filesize
7.7MB

Download
memory/3600-23-0x0000000006570000-0x00000000065C0000-memory.dmp

Filesize
320KB

Download
memory/3600-21-0x00000000751C0000-0x0000000075970000-memory.dmp

Filesize
7.7MB

Download
memory/3600-20-0x00000000751C0000-0x0000000075970000-memory.dmp

Filesize
7.7MB

Download
memory/3600-18-0x00000000053E0000-0x00000000053F8000-memory.dmp

Filesize
96KB

Download
memory/3600-12-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3600-17-0x00000000751C0000-0x0000000075970000-memory.dmp

Filesize
7.7MB

Download
memory/4548-7-0x00000000086B0000-0x00000000086FC000-memory.dmp

Filesize
304KB

Download
memory/4548-9-0x00000000751C0000-0x0000000075970000-memory.dmp

Filesize
7.7MB

Download
memory/4548-8-0x00000000751CE000-0x00000000751CF000-memory.dmp

Filesize
4KB

Download
memory/4548-2-0x0000000005B30000-0x00000000060D4000-memory.dmp

Filesize
5.6MB

Download
memory/4548-16-0x00000000751C0000-0x0000000075970000-memory.dmp

Filesize
7.7MB

Download
memory/4548-10-0x0000000006880000-0x000000000691C000-memory.dmp

Filesize
624KB

Download
memory/4548-1-0x0000000000AC0000-0x0000000000B56000-memory.dmp

Filesize
600KB

Download
memory/4548-0-0x00000000751CE000-0x00000000751CF000-memory.dmp

Filesize
4KB

Download
memory/4548-11-0x00000000069E0000-0x0000000006A50000-memory.dmp

Filesize
448KB

Download
memory/4548-6-0x0000000005910000-0x000000000591A000-memory.dmp

Filesize
40KB

Download
memory/4548-5-0x0000000005550000-0x000000000555A000-memory.dmp

Filesize
40KB

Download
memory/4548-4-0x00000000751C0000-0x0000000075970000-memory.dmp

Filesize
7.7MB

Download
memory/4548-3-0x0000000005580000-0x0000000005612000-memory.dmp

Filesize
584KB

Download

Analysis

Sharing