agenttesla | b4ce91bdb3336fef3434454007575635a36024c050cf580ce5ce7c162f97e0d3

General

Target

b4ce91bdb3336fef3434454007575635a36024c050cf580ce5ce7c162f97e0d3.exe
Size

1.7MB
MD5

2c55963381999400a31814af76924bf9
SHA1

08865749b07b73a4b09a5ae23686b11f12d1e97b
SHA256

b4ce91bdb3336fef3434454007575635a36024c050cf580ce5ce7c162f97e0d3
SHA512

fac18cae326373fbbe961cda0d41f0906562a1a8528e36fad012ceaa3ccf932b4e8196a0cbe2100371dabe45e3a71fef8f050190b0c726dbba34cf9cf51584ce
SSDEEP

24576:ASexfdruzJDcQq/iFLpXq7TYA2rQtlHPI4Hs:dBz9qaFLVQB

Score

10^/10

agenttesla discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: ftp
Host:
s4.serv00.com
Port:
21
Username:
f2241_dod
Password:
Doll900@@

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://s4.serv00.com
Port:
21
Username:
f2241_dod
Password:
Doll900@@

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
3228	b4ce91bdb3336fef3434454007575635a36024c050cf580ce5ce7c162f97e0d3.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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\adobe = "C:\\Users\\Admin\\AppData\\Roaming\\adobe\\adobe.exe"	b4ce91bdb3336fef3434454007575635a36024c050cf580ce5ce7c162f97e0d3.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
21	api.ipify.org
20	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4044 set thread context of 3228	4044	b4ce91bdb3336fef3434454007575635a36024c050cf580ce5ce7c162f97e0d3.exe	95

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	b4ce91bdb3336fef3434454007575635a36024c050cf580ce5ce7c162f97e0d3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b4ce91bdb3336fef3434454007575635a36024c050cf580ce5ce7c162f97e0d3.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3228	b4ce91bdb3336fef3434454007575635a36024c050cf580ce5ce7c162f97e0d3.exe
3228	b4ce91bdb3336fef3434454007575635a36024c050cf580ce5ce7c162f97e0d3.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3228	b4ce91bdb3336fef3434454007575635a36024c050cf580ce5ce7c162f97e0d3.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3228	b4ce91bdb3336fef3434454007575635a36024c050cf580ce5ce7c162f97e0d3.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4044 wrote to memory of 3228	4044	b4ce91bdb3336fef3434454007575635a36024c050cf580ce5ce7c162f97e0d3.exe	95
PID 4044 wrote to memory of 3228	4044	b4ce91bdb3336fef3434454007575635a36024c050cf580ce5ce7c162f97e0d3.exe	95
PID 4044 wrote to memory of 3228	4044	b4ce91bdb3336fef3434454007575635a36024c050cf580ce5ce7c162f97e0d3.exe	95
PID 4044 wrote to memory of 3228	4044	b4ce91bdb3336fef3434454007575635a36024c050cf580ce5ce7c162f97e0d3.exe	95
PID 4044 wrote to memory of 3228	4044	b4ce91bdb3336fef3434454007575635a36024c050cf580ce5ce7c162f97e0d3.exe	95
PID 4044 wrote to memory of 3228	4044	b4ce91bdb3336fef3434454007575635a36024c050cf580ce5ce7c162f97e0d3.exe	95
PID 4044 wrote to memory of 3228	4044	b4ce91bdb3336fef3434454007575635a36024c050cf580ce5ce7c162f97e0d3.exe	95
PID 4044 wrote to memory of 3228	4044	b4ce91bdb3336fef3434454007575635a36024c050cf580ce5ce7c162f97e0d3.exe	95

C:\Users\Admin\AppData\Local\Temp\b4ce91bdb3336fef3434454007575635a36024c050cf580ce5ce7c162f97e0d3.exe
"C:\Users\Admin\AppData\Local\Temp\b4ce91bdb3336fef3434454007575635a36024c050cf580ce5ce7c162f97e0d3.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4044
- C:\Users\Admin\AppData\Local\Temp\b4ce91bdb3336fef3434454007575635a36024c050cf580ce5ce7c162f97e0d3.exe
  "C:\Users\Admin\AppData\Local\Temp\b4ce91bdb3336fef3434454007575635a36024c050cf580ce5ce7c162f97e0d3.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3228

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

4

T1552

Credentials In Files

3

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

4

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\b4ce91bdb3336fef3434454007575635a36024c050cf580ce5ce7c162f97e0d3.exe

Filesize
1.7MB

MD5
2c55963381999400a31814af76924bf9

SHA1
08865749b07b73a4b09a5ae23686b11f12d1e97b

SHA256
b4ce91bdb3336fef3434454007575635a36024c050cf580ce5ce7c162f97e0d3

SHA512
fac18cae326373fbbe961cda0d41f0906562a1a8528e36fad012ceaa3ccf932b4e8196a0cbe2100371dabe45e3a71fef8f050190b0c726dbba34cf9cf51584ce

Download Submit
memory/3228-21-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/3228-20-0x00000000064E0000-0x0000000006530000-memory.dmp

Filesize
320KB

Download
memory/3228-16-0x0000000004BF0000-0x0000000004C56000-memory.dmp

Filesize
408KB

Download
memory/3228-15-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/3228-14-0x00000000003B0000-0x00000000003F2000-memory.dmp

Filesize
264KB

Download
memory/3228-13-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/4044-4-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/4044-8-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/4044-9-0x0000000005E90000-0x0000000005F2C000-memory.dmp

Filesize
624KB

Download
memory/4044-10-0x0000000005BA0000-0x0000000005BA8000-memory.dmp

Filesize
32KB

Download
memory/4044-7-0x000000007468E000-0x000000007468F000-memory.dmp

Filesize
4KB

Download
memory/4044-6-0x0000000005D80000-0x0000000005DF0000-memory.dmp

Filesize
448KB

Download
memory/4044-5-0x0000000005B60000-0x0000000005B6A000-memory.dmp

Filesize
40KB

Download
memory/4044-0-0x000000007468E000-0x000000007468F000-memory.dmp

Filesize
4KB

Download
memory/4044-3-0x0000000005AC0000-0x0000000005B52000-memory.dmp

Filesize
584KB

Download
memory/4044-17-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/4044-2-0x0000000006190000-0x0000000006734000-memory.dmp

Filesize
5.6MB

Download
memory/4044-1-0x0000000000F00000-0x00000000010AE000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads