agenttesla | 20dec5a74037ed25874d0e51d7280d9832c740747831e389383d0ed97058be17

General

Target

5152892f69bc66e7d7c6fab29f655de0N.exe
Size

722KB
MD5

5152892f69bc66e7d7c6fab29f655de0
SHA1

da75932eb9a00a05c038df22c52d59cefa78083f
SHA256

20dec5a74037ed25874d0e51d7280d9832c740747831e389383d0ed97058be17
SHA512

be657934627f199576623195658c088da215689b64992b28d1a7063573293efe1e5e2e7212644a78fa8e0a9e9a089739d81bf9971963dc1861bbc2d6d3ca9911
SSDEEP

12288:glyYr9W0mzoIiWQGoltCpCLJ+alLT//jb8Q0IsK4/kh9tXm16a:R0UoPyoFLM8LTDb8f/kh9tXm16a

Score

10^/10

agenttesla credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.concaribe.com
Port:
21
Username:
[email protected]
Password:
ro}UWgz#!38E

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
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 2 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

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
4	api.ipify.org
5	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1288 set thread context of 2988	1288	5152892f69bc66e7d7c6fab29f655de0N.exe	30

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	5152892f69bc66e7d7c6fab29f655de0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5152892f69bc66e7d7c6fab29f655de0N.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2988	5152892f69bc66e7d7c6fab29f655de0N.exe
2988	5152892f69bc66e7d7c6fab29f655de0N.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2988	5152892f69bc66e7d7c6fab29f655de0N.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1288 wrote to memory of 2988	1288	5152892f69bc66e7d7c6fab29f655de0N.exe	30
PID 1288 wrote to memory of 2988	1288	5152892f69bc66e7d7c6fab29f655de0N.exe	30
PID 1288 wrote to memory of 2988	1288	5152892f69bc66e7d7c6fab29f655de0N.exe	30
PID 1288 wrote to memory of 2988	1288	5152892f69bc66e7d7c6fab29f655de0N.exe	30
PID 1288 wrote to memory of 2988	1288	5152892f69bc66e7d7c6fab29f655de0N.exe	30
PID 1288 wrote to memory of 2988	1288	5152892f69bc66e7d7c6fab29f655de0N.exe	30
PID 1288 wrote to memory of 2988	1288	5152892f69bc66e7d7c6fab29f655de0N.exe	30
PID 1288 wrote to memory of 2988	1288	5152892f69bc66e7d7c6fab29f655de0N.exe	30
PID 1288 wrote to memory of 2988	1288	5152892f69bc66e7d7c6fab29f655de0N.exe	30

C:\Users\Admin\AppData\Local\Temp\5152892f69bc66e7d7c6fab29f655de0N.exe
"C:\Users\Admin\AppData\Local\Temp\5152892f69bc66e7d7c6fab29f655de0N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1288
- C:\Users\Admin\AppData\Local\Temp\5152892f69bc66e7d7c6fab29f655de0N.exe
  "C:\Users\Admin\AppData\Local\Temp\5152892f69bc66e7d7c6fab29f655de0N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2988

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

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

Replay Monitor

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Downloads

memory/1288-14-0x0000000073E90000-0x000000007457E000-memory.dmp

Filesize
6.9MB

Download
memory/1288-1-0x0000000000950000-0x0000000000A0A000-memory.dmp

Filesize
744KB

Download
memory/1288-2-0x0000000002070000-0x00000000020B8000-memory.dmp

Filesize
288KB

Download
memory/1288-17-0x0000000073E90000-0x000000007457E000-memory.dmp

Filesize
6.9MB

Download
memory/1288-0-0x0000000073E9E000-0x0000000073E9F000-memory.dmp

Filesize
4KB

Download
memory/2988-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2988-11-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2988-9-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2988-13-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2988-6-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2988-15-0x0000000073E90000-0x000000007457E000-memory.dmp

Filesize
6.9MB

Download
memory/2988-5-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2988-16-0x0000000073E90000-0x000000007457E000-memory.dmp

Filesize
6.9MB

Download
memory/2988-4-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2988-3-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2988-18-0x0000000073E90000-0x000000007457E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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