agenttesla | 58f57f10db219449f530a5856c1e3fee44cbca44a55828b55a1445a5164b6257

General

Target

d10e67b55befd32992cda23b8997e185_JaffaCakes118.exe
Size

794KB
MD5

d10e67b55befd32992cda23b8997e185
SHA1

bf8796ea40c481f4c173472b4d673aa2d4906b92
SHA256

58f57f10db219449f530a5856c1e3fee44cbca44a55828b55a1445a5164b6257
SHA512

2134fd0bac738472d2a45ca2999c5ec261cf8a0827dae4402ec31ffc94eb0e046ace041c9b963a21cfca79d4360570a79207d135bbd5dd683b1f361c07224cea
SSDEEP

12288:Wbly675yJo0juRXhT4MghC35C6HWYeOmtHL+Qz1DTonrWReir1f9yE/jFbZtoky:B6ca0jux+Bs3HjmtHL/HrbZ4E5ZtY

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan upx

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
chibuikelightwork1

Signatures

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

AgentTesla payload 7 IoCs

resource	yara_rule
behavioral1/memory/2524-13-0x0000000000490000-0x00000000004CC000-memory.dmp	family_agenttesla
behavioral1/memory/2524-10-0x0000000000400000-0x0000000000484000-memory.dmp	family_agenttesla
behavioral1/memory/2524-8-0x0000000000400000-0x0000000000484000-memory.dmp	family_agenttesla
behavioral1/memory/2524-12-0x0000000000490000-0x00000000004CC000-memory.dmp	family_agenttesla
behavioral1/memory/2524-25-0x0000000000400000-0x0000000000484000-memory.dmp	family_agenttesla
behavioral1/memory/2524-24-0x0000000000400000-0x0000000000484000-memory.dmp	family_agenttesla
behavioral1/memory/2524-26-0x0000000000400000-0x0000000000484000-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

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2524-4-0x0000000000400000-0x0000000000484000-memory.dmp	upx
behavioral1/memory/2524-10-0x0000000000400000-0x0000000000484000-memory.dmp	upx
behavioral1/memory/2524-8-0x0000000000400000-0x0000000000484000-memory.dmp	upx
behavioral1/memory/2524-9-0x0000000000400000-0x0000000000484000-memory.dmp	upx
behavioral1/memory/2524-24-0x0000000000400000-0x0000000000484000-memory.dmp	upx

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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	d10e67b55befd32992cda23b8997e185_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	d10e67b55befd32992cda23b8997e185_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	d10e67b55befd32992cda23b8997e185_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1732 set thread context of 2524	1732	d10e67b55befd32992cda23b8997e185_JaffaCakes118.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	d10e67b55befd32992cda23b8997e185_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d10e67b55befd32992cda23b8997e185_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1732	d10e67b55befd32992cda23b8997e185_JaffaCakes118.exe
2524	d10e67b55befd32992cda23b8997e185_JaffaCakes118.exe
2524	d10e67b55befd32992cda23b8997e185_JaffaCakes118.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1732	d10e67b55befd32992cda23b8997e185_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2524	d10e67b55befd32992cda23b8997e185_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 2524	1732	d10e67b55befd32992cda23b8997e185_JaffaCakes118.exe	30
PID 1732 wrote to memory of 2524	1732	d10e67b55befd32992cda23b8997e185_JaffaCakes118.exe	30
PID 1732 wrote to memory of 2524	1732	d10e67b55befd32992cda23b8997e185_JaffaCakes118.exe	30
PID 1732 wrote to memory of 2524	1732	d10e67b55befd32992cda23b8997e185_JaffaCakes118.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	d10e67b55befd32992cda23b8997e185_JaffaCakes118.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	d10e67b55befd32992cda23b8997e185_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\d10e67b55befd32992cda23b8997e185_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d10e67b55befd32992cda23b8997e185_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1732
- C:\Users\Admin\AppData\Local\Temp\d10e67b55befd32992cda23b8997e185_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\d10e67b55befd32992cda23b8997e185_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:2524

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/1732-6-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/1732-2-0x0000000000750000-0x0000000000763000-memory.dmp

Filesize
76KB

Download
memory/1732-1-0x0000000000750000-0x0000000000763000-memory.dmp

Filesize
76KB

Download
memory/1732-3-0x0000000000770000-0x0000000000771000-memory.dmp

Filesize
4KB

Download
memory/1732-0-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2524-10-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/2524-13-0x0000000000490000-0x00000000004CC000-memory.dmp

Filesize
240KB

Download
memory/2524-8-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/2524-12-0x0000000000490000-0x00000000004CC000-memory.dmp

Filesize
240KB

Download
memory/2524-4-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/2524-9-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/2524-25-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/2524-24-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/2524-26-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download

Analysis

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