agenttesla | 9112bf6322a7832bbf2197b9c4f7a43ccf70519619965f0d38ee11e417850328

General

Target

d879ef5d250d2f5f77cf26ed3ca69506_JaffaCakes118.exe
Size

373KB
MD5

d879ef5d250d2f5f77cf26ed3ca69506
SHA1

d3f0f943d0c15c9c5975f726af3976dfdc794ca7
SHA256

9112bf6322a7832bbf2197b9c4f7a43ccf70519619965f0d38ee11e417850328
SHA512

5e5c72582d6f9e23003d63679d7f84dedf650c8086ce6283afd05b91c57e4d85c05a877462806f97e380de8242dc9e98ae146d67936371ba93bed353741a3c31
SSDEEP

6144:18LxBOeARnoXQswh/3R+bfspKESVgIIIuRpYAn4Zkqmrzivaf32pA:LeARoXQ95+TFEbIIIcdn4ZAivFA

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot1803146213:AAHYyCRx7FggQ9LfPbrIs79ZUWCEc9wNnDo/sendDocument

Signatures

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

AgentTesla payload 4 IoCs

resource	yara_rule
behavioral1/memory/2732-9-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/2732-12-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/2732-13-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/2732-14-0x0000000004450000-0x000000000448C000-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

Loads dropped DLL 1 IoCs

pid	Process
2400	d879ef5d250d2f5f77cf26ed3ca69506_JaffaCakes118.exe

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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	d879ef5d250d2f5f77cf26ed3ca69506_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	d879ef5d250d2f5f77cf26ed3ca69506_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	d879ef5d250d2f5f77cf26ed3ca69506_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2400 set thread context of 2732	2400	d879ef5d250d2f5f77cf26ed3ca69506_JaffaCakes118.exe	30

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	d879ef5d250d2f5f77cf26ed3ca69506_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d879ef5d250d2f5f77cf26ed3ca69506_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2732	d879ef5d250d2f5f77cf26ed3ca69506_JaffaCakes118.exe
2732	d879ef5d250d2f5f77cf26ed3ca69506_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2732	d879ef5d250d2f5f77cf26ed3ca69506_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2400 wrote to memory of 2732	2400	d879ef5d250d2f5f77cf26ed3ca69506_JaffaCakes118.exe	30
PID 2400 wrote to memory of 2732	2400	d879ef5d250d2f5f77cf26ed3ca69506_JaffaCakes118.exe	30
PID 2400 wrote to memory of 2732	2400	d879ef5d250d2f5f77cf26ed3ca69506_JaffaCakes118.exe	30
PID 2400 wrote to memory of 2732	2400	d879ef5d250d2f5f77cf26ed3ca69506_JaffaCakes118.exe	30
PID 2400 wrote to memory of 2732	2400	d879ef5d250d2f5f77cf26ed3ca69506_JaffaCakes118.exe	30
PID 2400 wrote to memory of 2732	2400	d879ef5d250d2f5f77cf26ed3ca69506_JaffaCakes118.exe	30
PID 2400 wrote to memory of 2732	2400	d879ef5d250d2f5f77cf26ed3ca69506_JaffaCakes118.exe	30
PID 2400 wrote to memory of 2732	2400	d879ef5d250d2f5f77cf26ed3ca69506_JaffaCakes118.exe	30
PID 2400 wrote to memory of 2732	2400	d879ef5d250d2f5f77cf26ed3ca69506_JaffaCakes118.exe	30
PID 2400 wrote to memory of 2732	2400	d879ef5d250d2f5f77cf26ed3ca69506_JaffaCakes118.exe	30
PID 2400 wrote to memory of 2732	2400	d879ef5d250d2f5f77cf26ed3ca69506_JaffaCakes118.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	d879ef5d250d2f5f77cf26ed3ca69506_JaffaCakes118.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	d879ef5d250d2f5f77cf26ed3ca69506_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\d879ef5d250d2f5f77cf26ed3ca69506_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d879ef5d250d2f5f77cf26ed3ca69506_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2400
- C:\Users\Admin\AppData\Local\Temp\d879ef5d250d2f5f77cf26ed3ca69506_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\d879ef5d250d2f5f77cf26ed3ca69506_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:2732

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 Information Discovery

1

T1082

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\nso5919.tmp\elbvtxae.dll

Filesize
30KB

MD5
e471a18380ddea57b521a9a151025aa2

SHA1
0bf030cf51304dd6a266336f01fe3c814a57f185

SHA256
e08f7c9b87af9a2000875b4905fb2de63deaffe218a26c0a9973a3c4244f8a6f

SHA512
004d1a87552cbf5df2429b168c282e8940380331ef46984d563e1325a9d96cf433cd9f63b8996783f38830e455fb780774908f584c6544336b665aacd86659bc

Download Submit
memory/2400-7-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/2400-11-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/2732-9-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2732-12-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2732-13-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2732-14-0x0000000004450000-0x000000000448C000-memory.dmp

Filesize
240KB

Download

Analysis

Sharing