agenttesla | 848489fd5b5b3a4db4d487ad8c94d05f73383bbaf8515603e48db61d0b4667ea

General

Target

0ab78998640ac5c15d27bd6b10c28f03_JaffaCakes118.exe
Size

979KB
MD5

0ab78998640ac5c15d27bd6b10c28f03
SHA1

9e7d7cdaadd56c5d3d18c2978b3f06e7bedfd382
SHA256

848489fd5b5b3a4db4d487ad8c94d05f73383bbaf8515603e48db61d0b4667ea
SHA512

2a107b35fcb0f9447f6c5f561f7c823ee0ae88b83c2ba8ae7fc3758fa30f2cda0ec57c4c58b308067035cb48bfba4793bed11496910b5e66450fc79b92341970
SSDEEP

12288:kKvirxYug+WTdloqlmrOSpawkbNah8zmj5rbp7u9iV8o0zz65xz61m+RPzIQWTBt:kKQmHfPPe+P7XP

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
server273.web-hosting.com
Port:
587
Username:
[email protected]
Password:
b,mTNJrKpbW~

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/3844-10-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

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-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0ab78998640ac5c15d27bd6b10c28f03_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0ab78998640ac5c15d27bd6b10c28f03_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0ab78998640ac5c15d27bd6b10c28f03_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1784 set thread context of 3844	1784	0ab78998640ac5c15d27bd6b10c28f03_JaffaCakes118.exe	82

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	0ab78998640ac5c15d27bd6b10c28f03_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0ab78998640ac5c15d27bd6b10c28f03_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3844	0ab78998640ac5c15d27bd6b10c28f03_JaffaCakes118.exe
3844	0ab78998640ac5c15d27bd6b10c28f03_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3844	0ab78998640ac5c15d27bd6b10c28f03_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3844	0ab78998640ac5c15d27bd6b10c28f03_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1784 wrote to memory of 3844	1784	0ab78998640ac5c15d27bd6b10c28f03_JaffaCakes118.exe	82
PID 1784 wrote to memory of 3844	1784	0ab78998640ac5c15d27bd6b10c28f03_JaffaCakes118.exe	82
PID 1784 wrote to memory of 3844	1784	0ab78998640ac5c15d27bd6b10c28f03_JaffaCakes118.exe	82
PID 1784 wrote to memory of 3844	1784	0ab78998640ac5c15d27bd6b10c28f03_JaffaCakes118.exe	82
PID 1784 wrote to memory of 3844	1784	0ab78998640ac5c15d27bd6b10c28f03_JaffaCakes118.exe	82
PID 1784 wrote to memory of 3844	1784	0ab78998640ac5c15d27bd6b10c28f03_JaffaCakes118.exe	82
PID 1784 wrote to memory of 3844	1784	0ab78998640ac5c15d27bd6b10c28f03_JaffaCakes118.exe	82
PID 1784 wrote to memory of 3844	1784	0ab78998640ac5c15d27bd6b10c28f03_JaffaCakes118.exe	82

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0ab78998640ac5c15d27bd6b10c28f03_JaffaCakes118.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0ab78998640ac5c15d27bd6b10c28f03_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\0ab78998640ac5c15d27bd6b10c28f03_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0ab78998640ac5c15d27bd6b10c28f03_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1784
- C:\Users\Admin\AppData\Local\Temp\0ab78998640ac5c15d27bd6b10c28f03_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\0ab78998640ac5c15d27bd6b10c28f03_JaffaCakes118.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:3844

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

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\0ab78998640ac5c15d27bd6b10c28f03_JaffaCakes118.exe.log

Filesize
886B

MD5
adee6fb564e48f4dbda9d98bd2aacad8

SHA1
f2f291e4460a2247d63df73ccb35dc7b53e266e7

SHA256
3399d074790192d222b9c886656f60bde71df3cff3103b10c88a4323386afd73

SHA512
c461ae2006d3cb512c2c9083102c72b34c31a54ea97e0aaa1c0353eb51bc2ea47f119065b47cd92f4aba7df86699a2dbe4c1e62a9be05fd058703ca84386d907

Download Submit
memory/1784-13-0x00000000743D0000-0x0000000074B80000-memory.dmp

Filesize
7.7MB

Download
memory/1784-1-0x00000000000F0000-0x00000000001EA000-memory.dmp

Filesize
1000KB

Download
memory/1784-2-0x0000000005190000-0x0000000005734000-memory.dmp

Filesize
5.6MB

Download
memory/1784-3-0x0000000004BE0000-0x0000000004C72000-memory.dmp

Filesize
584KB

Download
memory/1784-4-0x0000000004C80000-0x0000000004CF6000-memory.dmp

Filesize
472KB

Download
memory/1784-5-0x0000000004D00000-0x0000000004D9C000-memory.dmp

Filesize
624KB

Download
memory/1784-6-0x00000000743D0000-0x0000000074B80000-memory.dmp

Filesize
7.7MB

Download
memory/1784-7-0x0000000004B60000-0x0000000004B7E000-memory.dmp

Filesize
120KB

Download
memory/1784-8-0x0000000004DB0000-0x0000000004E1E000-memory.dmp

Filesize
440KB

Download
memory/1784-9-0x0000000004BA0000-0x0000000004BB6000-memory.dmp

Filesize
88KB

Download
memory/1784-0-0x00000000743DE000-0x00000000743DF000-memory.dmp

Filesize
4KB

Download
memory/3844-10-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3844-14-0x00000000743D0000-0x0000000074B80000-memory.dmp

Filesize
7.7MB

Download
memory/3844-15-0x00000000743D0000-0x0000000074B80000-memory.dmp

Filesize
7.7MB

Download
memory/3844-16-0x00000000062F0000-0x0000000006308000-memory.dmp

Filesize
96KB

Download
memory/3844-17-0x0000000006380000-0x00000000063E6000-memory.dmp

Filesize
408KB

Download
memory/3844-18-0x00000000743D0000-0x0000000074B80000-memory.dmp

Filesize
7.7MB

Download
memory/3844-19-0x00000000743D0000-0x0000000074B80000-memory.dmp

Filesize
7.7MB

Download
memory/3844-20-0x0000000006940000-0x0000000006990000-memory.dmp

Filesize
320KB

Download
memory/3844-21-0x0000000006930000-0x000000000693A000-memory.dmp

Filesize
40KB

Download
memory/3844-22-0x00000000743D0000-0x0000000074B80000-memory.dmp

Filesize
7.7MB

Download
memory/3844-23-0x00000000743D0000-0x0000000074B80000-memory.dmp

Filesize
7.7MB

Download

Analysis

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