agenttesla | 8ca10b0fcde48ff00c9218062eb8aefe2a9d3ddc5e240a9da4a2e7764cbfff90

General

Target

d4228f0094377f96065f594598678920_JaffaCakes118.exe
Size

459KB
MD5

d4228f0094377f96065f594598678920
SHA1

212a3733cdde8ad5f1e0edfdf81230d8e1ef460a
SHA256

8ca10b0fcde48ff00c9218062eb8aefe2a9d3ddc5e240a9da4a2e7764cbfff90
SHA512

693d2c1a369fad7f95f888d1e5e242ac8148f2b80372eb49f1379948dbee248d70f0b1817d1592c768a9cc2e5552cc20a99007561c89f97bfd7a3fbd1e1c1ce5
SSDEEP

6144:dCf1r7CeAZo7Nf+Xuh1T9QOCODGMxLoiL3BZHLM0jpip4b:sfrAWZ2IQHODGMhosRlL64b

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.gascuenca.es
Port:
587
Username:
[email protected]
Password:
gasW204@Z7
Email To:
[email protected]

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/3456-13-0x0000000000400000-0x000000000043C000-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-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	d4228f0094377f96065f594598678920_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	d4228f0094377f96065f594598678920_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	d4228f0094377f96065f594598678920_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2448 set thread context of 3456	2448	d4228f0094377f96065f594598678920_JaffaCakes118.exe	94

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	d4228f0094377f96065f594598678920_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d4228f0094377f96065f594598678920_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3456	d4228f0094377f96065f594598678920_JaffaCakes118.exe
3456	d4228f0094377f96065f594598678920_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3456	d4228f0094377f96065f594598678920_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2448 wrote to memory of 3456	2448	d4228f0094377f96065f594598678920_JaffaCakes118.exe	94
PID 2448 wrote to memory of 3456	2448	d4228f0094377f96065f594598678920_JaffaCakes118.exe	94
PID 2448 wrote to memory of 3456	2448	d4228f0094377f96065f594598678920_JaffaCakes118.exe	94
PID 2448 wrote to memory of 3456	2448	d4228f0094377f96065f594598678920_JaffaCakes118.exe	94
PID 2448 wrote to memory of 3456	2448	d4228f0094377f96065f594598678920_JaffaCakes118.exe	94
PID 2448 wrote to memory of 3456	2448	d4228f0094377f96065f594598678920_JaffaCakes118.exe	94
PID 2448 wrote to memory of 3456	2448	d4228f0094377f96065f594598678920_JaffaCakes118.exe	94
PID 2448 wrote to memory of 3456	2448	d4228f0094377f96065f594598678920_JaffaCakes118.exe	94

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	d4228f0094377f96065f594598678920_JaffaCakes118.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	d4228f0094377f96065f594598678920_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\d4228f0094377f96065f594598678920_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d4228f0094377f96065f594598678920_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2448
- C:\Users\Admin\AppData\Local\Temp\d4228f0094377f96065f594598678920_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\d4228f0094377f96065f594598678920_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:3456

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\d4228f0094377f96065f594598678920_JaffaCakes118.exe.log

Filesize
1KB

MD5
17573558c4e714f606f997e5157afaac

SHA1
13e16e9415ceef429aaf124139671ebeca09ed23

SHA256
c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

SHA512
f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

Download Submit
memory/2448-12-0x00000000058A0000-0x00000000058E0000-memory.dmp

Filesize
256KB

Download
memory/2448-9-0x000000007480E000-0x000000007480F000-memory.dmp

Filesize
4KB

Download
memory/2448-3-0x0000000004F90000-0x0000000005534000-memory.dmp

Filesize
5.6MB

Download
memory/2448-4-0x0000000004A80000-0x0000000004B12000-memory.dmp

Filesize
584KB

Download
memory/2448-5-0x00000000049A0000-0x00000000049AA000-memory.dmp

Filesize
40KB

Download
memory/2448-6-0x0000000004C10000-0x0000000004C66000-memory.dmp

Filesize
344KB

Download
memory/2448-7-0x0000000074800000-0x0000000074FB0000-memory.dmp

Filesize
7.7MB

Download
memory/2448-17-0x0000000074800000-0x0000000074FB0000-memory.dmp

Filesize
7.7MB

Download
memory/2448-0-0x000000007480E000-0x000000007480F000-memory.dmp

Filesize
4KB

Download
memory/2448-10-0x0000000074800000-0x0000000074FB0000-memory.dmp

Filesize
7.7MB

Download
memory/2448-2-0x00000000048B0000-0x000000000494C000-memory.dmp

Filesize
624KB

Download
memory/2448-11-0x0000000005840000-0x0000000005898000-memory.dmp

Filesize
352KB

Download
memory/2448-8-0x00000000049C0000-0x00000000049C8000-memory.dmp

Filesize
32KB

Download
memory/2448-1-0x0000000000020000-0x000000000009A000-memory.dmp

Filesize
488KB

Download
memory/3456-13-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3456-16-0x0000000074800000-0x0000000074FB0000-memory.dmp

Filesize
7.7MB

Download
memory/3456-18-0x0000000074800000-0x0000000074FB0000-memory.dmp

Filesize
7.7MB

Download
memory/3456-19-0x0000000005B20000-0x0000000005B38000-memory.dmp

Filesize
96KB

Download
memory/3456-20-0x00000000067B0000-0x0000000006816000-memory.dmp

Filesize
408KB

Download
memory/3456-21-0x0000000074800000-0x0000000074FB0000-memory.dmp

Filesize
7.7MB

Download
memory/3456-22-0x0000000074800000-0x0000000074FB0000-memory.dmp

Filesize
7.7MB

Download
memory/3456-23-0x00000000069C0000-0x0000000006A10000-memory.dmp

Filesize
320KB

Download
memory/3456-24-0x0000000074800000-0x0000000074FB0000-memory.dmp

Filesize
7.7MB

Download

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