agenttesla | 1b7fc6d8c48f210befe24f558e809cc3fa6887af278969c340523019e6a8f820

General

Target

e935dcfa14ec3f735a9e3cfe7532877d_JaffaCakes118.exe
Size

612KB
MD5

e935dcfa14ec3f735a9e3cfe7532877d
SHA1

4d6411f939fe7d422a43d9ae0ba93b85f7944671
SHA256

1b7fc6d8c48f210befe24f558e809cc3fa6887af278969c340523019e6a8f820
SHA512

7dfa098d8d413dd69693f491cd06812cf775bd52a95bf775ce2731dcab162f9c8918e3fe4c909896ca84993d23cec33f7b6b8c810c9c999594ee347fe906d059
SSDEEP

12288:Ey5sdppr6hGvK3LOgcx0liMmU2va+x5fYCrwhvGgv:fCPB6hdOg7l3mXxhJrwRG

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.ru
Port:
587
Username:
[email protected]
Password:
too214365

Signatures

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

AgentTesla payload 3 IoCs

resource	yara_rule
behavioral1/memory/2796-5-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2796-9-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2796-7-0x0000000000400000-0x000000000043C000-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 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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2220 set thread context of 2796	2220	e935dcfa14ec3f735a9e3cfe7532877d_JaffaCakes118.exe	31

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	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e935dcfa14ec3f735a9e3cfe7532877d_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2796	RegAsm.exe
2796	RegAsm.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2220	e935dcfa14ec3f735a9e3cfe7532877d_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2796	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 2796	2220	e935dcfa14ec3f735a9e3cfe7532877d_JaffaCakes118.exe	31
PID 2220 wrote to memory of 2796	2220	e935dcfa14ec3f735a9e3cfe7532877d_JaffaCakes118.exe	31
PID 2220 wrote to memory of 2796	2220	e935dcfa14ec3f735a9e3cfe7532877d_JaffaCakes118.exe	31
PID 2220 wrote to memory of 2796	2220	e935dcfa14ec3f735a9e3cfe7532877d_JaffaCakes118.exe	31
PID 2220 wrote to memory of 2796	2220	e935dcfa14ec3f735a9e3cfe7532877d_JaffaCakes118.exe	31
PID 2220 wrote to memory of 2796	2220	e935dcfa14ec3f735a9e3cfe7532877d_JaffaCakes118.exe	31
PID 2220 wrote to memory of 2796	2220	e935dcfa14ec3f735a9e3cfe7532877d_JaffaCakes118.exe	31
PID 2220 wrote to memory of 2796	2220	e935dcfa14ec3f735a9e3cfe7532877d_JaffaCakes118.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\e935dcfa14ec3f735a9e3cfe7532877d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e935dcfa14ec3f735a9e3cfe7532877d_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2220
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.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:2796

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

3

T1552

Credentials In Files

3

T1552.001

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/2220-0-0x00000000742BE000-0x00000000742BF000-memory.dmp

Filesize
4KB

Download
memory/2220-1-0x0000000000900000-0x00000000009A0000-memory.dmp

Filesize
640KB

Download
memory/2220-2-0x00000000742B0000-0x000000007499E000-memory.dmp

Filesize
6.9MB

Download
memory/2220-3-0x0000000004050000-0x0000000004094000-memory.dmp

Filesize
272KB

Download
memory/2220-4-0x00000000742B0000-0x000000007499E000-memory.dmp

Filesize
6.9MB

Download
memory/2220-10-0x00000000742B0000-0x000000007499E000-memory.dmp

Filesize
6.9MB

Download
memory/2796-5-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2796-9-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2796-7-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download

Analysis

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