agenttesla | c0dd2ebe2000e00264987c232d28bc6856a726ae84e374d83765c235152320c4

General

Target

f1d9b958d4f49552880b5891b0f73148_JaffaCakes118.exe
Size

345KB
MD5

f1d9b958d4f49552880b5891b0f73148
SHA1

37a1ca49ca590ba23af6e8cd5753c2606edfcf9c
SHA256

c0dd2ebe2000e00264987c232d28bc6856a726ae84e374d83765c235152320c4
SHA512

4e6fadd9ca0d651329842cc2b5c0b3e4e892ba6228ef1338c3ca8f0a212afe742ba560b2e29daaaf1bfafdff4e2de0390451be6676b6f3a5b1c1bee2eaa4ffcf
SSDEEP

6144:8SDMpra6JNmQjwfEvUQLooj5d95vhaDoaqFFqH28MjvC2uJdx3oZ/pmRnu:+p1JNV+uFjR5sDoaO8MOjdx3+/Y

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.embragosalobestia.com
Port:
587
Username:
[email protected]
Password:
KInhQdv5ceo

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral2/memory/1156-8-0x0000000000400000-0x000000000043C000-memory.dmp	family_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
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-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f1d9b958d4f49552880b5891b0f73148_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f1d9b958d4f49552880b5891b0f73148_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f1d9b958d4f49552880b5891b0f73148_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4032 set thread context of 1156	4032	f1d9b958d4f49552880b5891b0f73148_JaffaCakes118.exe	81

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	f1d9b958d4f49552880b5891b0f73148_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f1d9b958d4f49552880b5891b0f73148_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1156	f1d9b958d4f49552880b5891b0f73148_JaffaCakes118.exe
1156	f1d9b958d4f49552880b5891b0f73148_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1156	f1d9b958d4f49552880b5891b0f73148_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4032 wrote to memory of 1156	4032	f1d9b958d4f49552880b5891b0f73148_JaffaCakes118.exe	81
PID 4032 wrote to memory of 1156	4032	f1d9b958d4f49552880b5891b0f73148_JaffaCakes118.exe	81
PID 4032 wrote to memory of 1156	4032	f1d9b958d4f49552880b5891b0f73148_JaffaCakes118.exe	81
PID 4032 wrote to memory of 1156	4032	f1d9b958d4f49552880b5891b0f73148_JaffaCakes118.exe	81
PID 4032 wrote to memory of 1156	4032	f1d9b958d4f49552880b5891b0f73148_JaffaCakes118.exe	81
PID 4032 wrote to memory of 1156	4032	f1d9b958d4f49552880b5891b0f73148_JaffaCakes118.exe	81
PID 4032 wrote to memory of 1156	4032	f1d9b958d4f49552880b5891b0f73148_JaffaCakes118.exe	81
PID 4032 wrote to memory of 1156	4032	f1d9b958d4f49552880b5891b0f73148_JaffaCakes118.exe	81

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f1d9b958d4f49552880b5891b0f73148_JaffaCakes118.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f1d9b958d4f49552880b5891b0f73148_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\f1d9b958d4f49552880b5891b0f73148_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f1d9b958d4f49552880b5891b0f73148_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4032
- C:\Users\Admin\AppData\Local\Temp\f1d9b958d4f49552880b5891b0f73148_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\f1d9b958d4f49552880b5891b0f73148_JaffaCakes118.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1156

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

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Downloads

memory/1156-15-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/1156-13-0x00000000060F0000-0x0000000006156000-memory.dmp

Filesize
408KB

Download
memory/1156-8-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1156-18-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/1156-9-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/1156-16-0x0000000006080000-0x00000000060D0000-memory.dmp

Filesize
320KB

Download
memory/1156-14-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/1156-10-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/1156-19-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/1156-17-0x0000000006460000-0x000000000646A000-memory.dmp

Filesize
40KB

Download
memory/1156-12-0x0000000005450000-0x0000000005468000-memory.dmp

Filesize
96KB

Download
memory/4032-11-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/4032-7-0x0000000004B20000-0x0000000004B36000-memory.dmp

Filesize
88KB

Download
memory/4032-1-0x00000000000D0000-0x000000000012C000-memory.dmp

Filesize
368KB

Download
memory/4032-6-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/4032-0-0x000000007522E000-0x000000007522F000-memory.dmp

Filesize
4KB

Download
memory/4032-5-0x0000000004C90000-0x0000000004D2C000-memory.dmp

Filesize
624KB

Download
memory/4032-4-0x0000000004BF0000-0x0000000004C82000-memory.dmp

Filesize
584KB

Download
memory/4032-3-0x0000000004AA0000-0x0000000004AEE000-memory.dmp

Filesize
312KB

Download
memory/4032-2-0x0000000004FA0000-0x0000000005544000-memory.dmp

Filesize
5.6MB

Download

Analysis

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