agenttesla | 233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940

General

Target

233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe
Size

709KB
MD5

c0ffdff6f822d352a7932a19b72c0f40
SHA1

d546c7ab883d25cbb09ffc09f92e9bf35cd2cfe6
SHA256

233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940
SHA512

6e817b32552757974f08bcb32225fdc0816980b4b4e610ce692194b5e6d67b525107780d0918880b0602d763f64ffb7ee925064868e00c30bb8bb157754d1ab6
SSDEEP

12288:6R61OhPIltwmQ6rZVGCN01OqdC8eUkY4TWXiwYo8Q53sBukLGBv5n:1O1Sbb9VB0Mt8eUdNx89O

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
aaf-kas.com
Port:
587
Username:
[email protected]
Password:
vecofgain123
Email To:
[email protected]

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.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
32	api.ipify.org
33	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1288 set thread context of 3336	1288	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe	91

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	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3336	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe
3336	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3336	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1288	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe
1288	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe
3336	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1288 wrote to memory of 3336	1288	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe	91
PID 1288 wrote to memory of 3336	1288	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe	91
PID 1288 wrote to memory of 3336	1288	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe	91
PID 1288 wrote to memory of 3336	1288	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe	91
PID 1288 wrote to memory of 3336	1288	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe	91
PID 1288 wrote to memory of 3336	1288	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe	91
PID 1288 wrote to memory of 3336	1288	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe	91
PID 1288 wrote to memory of 3336	1288	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe	91

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe

C:\Users\Admin\AppData\Local\Temp\233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe
"C:\Users\Admin\AppData\Local\Temp\233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1288
- C:\Users\Admin\AppData\Local\Temp\233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe
  "C:\Users\Admin\AppData\Local\Temp\233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe"
  2⤵
  - 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:3336

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

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\233e1446dc1079d85f03b85fc66bad3f23408b792b86d20c762ddc3276b83940N.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/1288-10-0x00000000748DE000-0x00000000748DF000-memory.dmp

Filesize
4KB

Download
memory/1288-3-0x0000000004B50000-0x0000000004BE2000-memory.dmp

Filesize
584KB

Download
memory/1288-12-0x0000000007ED0000-0x0000000007ED8000-memory.dmp

Filesize
32KB

Download
memory/1288-4-0x00000000748D0000-0x0000000075080000-memory.dmp

Filesize
7.7MB

Download
memory/1288-5-0x0000000004B30000-0x0000000004B3A000-memory.dmp

Filesize
40KB

Download
memory/1288-6-0x0000000004DC0000-0x0000000004E5C000-memory.dmp

Filesize
624KB

Download
memory/1288-7-0x00000000748D0000-0x0000000075080000-memory.dmp

Filesize
7.7MB

Download
memory/1288-8-0x00000000748D0000-0x0000000075080000-memory.dmp

Filesize
7.7MB

Download
memory/1288-13-0x0000000007F00000-0x0000000007F0A000-memory.dmp

Filesize
40KB

Download
memory/1288-0-0x00000000748DE000-0x00000000748DF000-memory.dmp

Filesize
4KB

Download
memory/1288-11-0x00000000748D0000-0x0000000075080000-memory.dmp

Filesize
7.7MB

Download
memory/1288-2-0x0000000005060000-0x0000000005604000-memory.dmp

Filesize
5.6MB

Download
memory/1288-9-0x0000000007EA0000-0x0000000007EB2000-memory.dmp

Filesize
72KB

Download
memory/1288-14-0x0000000007F40000-0x0000000007FBC000-memory.dmp

Filesize
496KB

Download
memory/1288-18-0x00000000748D0000-0x0000000075080000-memory.dmp

Filesize
7.7MB

Download
memory/1288-1-0x0000000000080000-0x0000000000134000-memory.dmp

Filesize
720KB

Download
memory/3336-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/3336-19-0x00000000748D0000-0x0000000075080000-memory.dmp

Filesize
7.7MB

Download
memory/3336-21-0x00000000748D0000-0x0000000075080000-memory.dmp

Filesize
7.7MB

Download
memory/3336-20-0x00000000057E0000-0x0000000005846000-memory.dmp

Filesize
408KB

Download
memory/3336-22-0x0000000006EA0000-0x0000000006EF0000-memory.dmp

Filesize
320KB

Download
memory/3336-23-0x00000000748D0000-0x0000000075080000-memory.dmp

Filesize
7.7MB

Download

Analysis

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