agenttesla | 756feeaec24bcada5d473a53931ac665c2a159083f408d41e7fe1c8fcb0b9a6b

General

Target

fa548af33ac073be63464186b33198aa_JaffaCakes118.exe
Size

537KB
MD5

fa548af33ac073be63464186b33198aa
SHA1

6a49f366a9e962fca0f33d4fbd9a7bab9b076306
SHA256

756feeaec24bcada5d473a53931ac665c2a159083f408d41e7fe1c8fcb0b9a6b
SHA512

47378048c422c793cffb091c782739ae34fd39788820c73c49215a6e859768c9e89d0e73f7aa7284ad5f6254add180d57c95b2a8a0b72b5f60524663eac7b962
SSDEEP

12288:esd0O4v8zUmO7UoWVCa6Y8VRlDwMnAm3U8yoewrAjNZE8u:Tb4v2UmOFWWpTlD99y9wMjXc

Score

10^/10

agenttesla collection credential_access discovery evasion keylogger persistence privilege_escalation rezer0 spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.tolipgoldenplaza.com
Port:
587
Username:
[email protected]
Password:
Golden@#$2019

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.tolipgoldenplaza.com
Port:
587
Username:
[email protected]
Password:
Golden@#$2019

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/4548-14-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

resource	yara_rule
behavioral2/memory/4676-8-0x0000000006EF0000-0x0000000006F48000-memory.dmp	rezer0

Disables Task Manager via registry modification
evasion

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	fa548af33ac073be63464186b33198aa_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 3 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

Credentials from Web Browsers
T1555.003
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-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4676 set thread context of 4548	4676	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe	84

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

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	REG.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 1 IoCs

Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

discovery

Wi-Fi Discovery

T1016.002

pid	Process
4080	netsh.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
3924	REG.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4692	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4676	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe
4548	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe
4548	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4676	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe
Token: SeDebugPrivilege	4548	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4676 wrote to memory of 4692	4676	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe	82
PID 4676 wrote to memory of 4692	4676	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe	82
PID 4676 wrote to memory of 4692	4676	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe	82
PID 4676 wrote to memory of 4548	4676	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe	84
PID 4676 wrote to memory of 4548	4676	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe	84
PID 4676 wrote to memory of 4548	4676	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe	84
PID 4676 wrote to memory of 4548	4676	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe	84
PID 4676 wrote to memory of 4548	4676	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe	84
PID 4676 wrote to memory of 4548	4676	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe	84
PID 4676 wrote to memory of 4548	4676	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe	84
PID 4676 wrote to memory of 4548	4676	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe	84
PID 4548 wrote to memory of 3924	4548	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe	86
PID 4548 wrote to memory of 3924	4548	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe	86
PID 4548 wrote to memory of 3924	4548	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe	86
PID 4548 wrote to memory of 4080	4548	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe	96
PID 4548 wrote to memory of 4080	4548	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe	96
PID 4548 wrote to memory of 4080	4548	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe	96

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fa548af33ac073be63464186b33198aa_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\fa548af33ac073be63464186b33198aa_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fa548af33ac073be63464186b33198aa_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4676
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IFaysgfEOJsfZd" /XML "C:\Users\Admin\AppData\Local\Temp\tmp96E1.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4692
- C:\Users\Admin\AppData\Local\Temp\fa548af33ac073be63464186b33198aa_JaffaCakes118.exe
  "{path}"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  - outlook_win_path
  PID:4548
- - C:\Windows\SysWOW64\REG.exe
    REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Modifies registry key
    PID:3924
- - C:\Windows\SysWOW64\netsh.exe
    "netsh" wlan show profile
    3⤵
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Wi-Fi Discovery
    PID:4080

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

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

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Wi-Fi Discovery

1

T1016.002

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\tmp96E1.tmp

Filesize
1KB

MD5
ad22a1238815428ad85b1ba6cf97843b

SHA1
c72902299ca742c631983151bcbaba64463dc1ef

SHA256
4893da3b9db0c357f442d60269566c9d569056fbb0418629cad4edc24730723b

SHA512
c3e36a40ac44ce22884c336db4cd0ff791ca1676b7176e7baa61e65475b1ab8160c3cde6165a03de0e1e2786b8a00febc226b5fca4b7b09d70bd2ee3dfbd7336

Download Submit
memory/4548-23-0x0000000006C40000-0x0000000006C90000-memory.dmp

Filesize
320KB

Download
memory/4548-22-0x00000000743D0000-0x0000000074B80000-memory.dmp

Filesize
7.7MB

Download
memory/4548-20-0x0000000005F30000-0x0000000005F96000-memory.dmp

Filesize
408KB

Download
memory/4548-19-0x00000000058D0000-0x00000000058E8000-memory.dmp

Filesize
96KB

Download
memory/4548-18-0x00000000743D0000-0x0000000074B80000-memory.dmp

Filesize
7.7MB

Download
memory/4548-16-0x00000000743D0000-0x0000000074B80000-memory.dmp

Filesize
7.7MB

Download
memory/4548-14-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/4676-8-0x0000000006EF0000-0x0000000006F48000-memory.dmp

Filesize
352KB

Download
memory/4676-0-0x00000000743DE000-0x00000000743DF000-memory.dmp

Filesize
4KB

Download
memory/4676-7-0x0000000005960000-0x0000000005968000-memory.dmp

Filesize
32KB

Download
memory/4676-6-0x0000000005980000-0x0000000005A1C000-memory.dmp

Filesize
624KB

Download
memory/4676-17-0x00000000743D0000-0x0000000074B80000-memory.dmp

Filesize
7.7MB

Download
memory/4676-5-0x0000000003200000-0x000000000320A000-memory.dmp

Filesize
40KB

Download
memory/4676-4-0x00000000743D0000-0x0000000074B80000-memory.dmp

Filesize
7.7MB

Download
memory/4676-3-0x00000000056A0000-0x0000000005732000-memory.dmp

Filesize
584KB

Download
memory/4676-2-0x0000000005E10000-0x00000000063B4000-memory.dmp

Filesize
5.6MB

Download
memory/4676-1-0x0000000000C10000-0x0000000000C9C000-memory.dmp

Filesize
560KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads