agenttesla | bc4e0f7cc8c9d573592ea1a3ed81421d4a01eaa98e14137afa2f4aff59aef92a

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
29-09-2024 10:06

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General

Target

fe4c67e07a73eee9b3f10936b610fdd4_JaffaCakes118.exe
Size

1.5MB
MD5

fe4c67e07a73eee9b3f10936b610fdd4
SHA1

15ff8812562490b7541437e21ddf5c60b3a68248
SHA256

bc4e0f7cc8c9d573592ea1a3ed81421d4a01eaa98e14137afa2f4aff59aef92a
SHA512

d9bbaedb43af3689fdd07ba37c84a0ab5233c0e1285abd8805ed84d2b123f7c25bfc15f959b259cb098daac67859b0900bcabcb79fd709067434a2c028b9220f
SSDEEP

24576:yW1NZfx3Lwkwp2H6YpCmfTHCEYY1pSlr3DV8bxOpwK:xVfx3L7aSCm7YY1E9/

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.thanhphet.asia
Port:
587
Username:
[email protected]
Password:
Daddyhandsome@1234
Email To:
[email protected]

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/4244-19-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	fe4c67e07a73eee9b3f10936b610fdd4_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-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fe4c67e07a73eee9b3f10936b610fdd4_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fe4c67e07a73eee9b3f10936b610fdd4_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fe4c67e07a73eee9b3f10936b610fdd4_JaffaCakes118.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
96	api.ipify.org
97	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1396 set thread context of 4244	1396	fe4c67e07a73eee9b3f10936b610fdd4_JaffaCakes118.exe	94

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 3 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fe4c67e07a73eee9b3f10936b610fdd4_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fe4c67e07a73eee9b3f10936b610fdd4_JaffaCakes118.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
752	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1396	fe4c67e07a73eee9b3f10936b610fdd4_JaffaCakes118.exe
4244	fe4c67e07a73eee9b3f10936b610fdd4_JaffaCakes118.exe
4244	fe4c67e07a73eee9b3f10936b610fdd4_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1396	fe4c67e07a73eee9b3f10936b610fdd4_JaffaCakes118.exe
Token: SeDebugPrivilege	4244	fe4c67e07a73eee9b3f10936b610fdd4_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4244	fe4c67e07a73eee9b3f10936b610fdd4_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1396 wrote to memory of 752	1396	fe4c67e07a73eee9b3f10936b610fdd4_JaffaCakes118.exe	92
PID 1396 wrote to memory of 752	1396	fe4c67e07a73eee9b3f10936b610fdd4_JaffaCakes118.exe	92
PID 1396 wrote to memory of 752	1396	fe4c67e07a73eee9b3f10936b610fdd4_JaffaCakes118.exe	92
PID 1396 wrote to memory of 4244	1396	fe4c67e07a73eee9b3f10936b610fdd4_JaffaCakes118.exe	94
PID 1396 wrote to memory of 4244	1396	fe4c67e07a73eee9b3f10936b610fdd4_JaffaCakes118.exe	94
PID 1396 wrote to memory of 4244	1396	fe4c67e07a73eee9b3f10936b610fdd4_JaffaCakes118.exe	94
PID 1396 wrote to memory of 4244	1396	fe4c67e07a73eee9b3f10936b610fdd4_JaffaCakes118.exe	94
PID 1396 wrote to memory of 4244	1396	fe4c67e07a73eee9b3f10936b610fdd4_JaffaCakes118.exe	94
PID 1396 wrote to memory of 4244	1396	fe4c67e07a73eee9b3f10936b610fdd4_JaffaCakes118.exe	94
PID 1396 wrote to memory of 4244	1396	fe4c67e07a73eee9b3f10936b610fdd4_JaffaCakes118.exe	94
PID 1396 wrote to memory of 4244	1396	fe4c67e07a73eee9b3f10936b610fdd4_JaffaCakes118.exe	94

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fe4c67e07a73eee9b3f10936b610fdd4_JaffaCakes118.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fe4c67e07a73eee9b3f10936b610fdd4_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\fe4c67e07a73eee9b3f10936b610fdd4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fe4c67e07a73eee9b3f10936b610fdd4_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:1396
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tyrqcBzT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8383.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:752
- C:\Users\Admin\AppData\Local\Temp\fe4c67e07a73eee9b3f10936b610fdd4_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\fe4c67e07a73eee9b3f10936b610fdd4_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:4244

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\fe4c67e07a73eee9b3f10936b610fdd4_JaffaCakes118.exe.log

Filesize
1KB

MD5
17573558c4e714f606f997e5157afaac

SHA1
13e16e9415ceef429aaf124139671ebeca09ed23

SHA256
c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

SHA512
f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp8383.tmp

Filesize
1KB

MD5
51a8a7a97db4ca510fc2519a8297638b

SHA1
8316e16a4ea4f17f2eacb20d7d248519ba1ac92a

SHA256
98ac98a4471f513c923f8a9d19f84b6c3602e3dbee9bdb4d7a4a52816075e32c

SHA512
3e28615dedde0e9f54c3012d5dfaf19c086fac60573a49e431df27f5abf66666734f7dca6c90e00fe90fa09e0b2e8096c4c14b1c6c75779a6c8bba7d08712be9

Download Submit
memory/1396-12-0x0000000007440000-0x0000000007446000-memory.dmp

Filesize
24KB

Download
memory/1396-23-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/1396-4-0x00000000058D0000-0x0000000005962000-memory.dmp

Filesize
584KB

Download
memory/1396-5-0x0000000005760000-0x000000000576A000-memory.dmp

Filesize
40KB

Download
memory/1396-6-0x0000000005A60000-0x0000000005AB6000-memory.dmp

Filesize
344KB

Download
memory/1396-7-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/1396-8-0x0000000005B30000-0x0000000005B48000-memory.dmp

Filesize
96KB

Download
memory/1396-9-0x00000000744DE000-0x00000000744DF000-memory.dmp

Filesize
4KB

Download
memory/1396-10-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/1396-11-0x0000000007560000-0x00000000075C0000-memory.dmp

Filesize
384KB

Download
memory/1396-0-0x00000000744DE000-0x00000000744DF000-memory.dmp

Filesize
4KB

Download
memory/1396-13-0x0000000007450000-0x0000000007490000-memory.dmp

Filesize
256KB

Download
memory/1396-1-0x0000000000C30000-0x0000000000DB2000-memory.dmp

Filesize
1.5MB

Download
memory/1396-3-0x0000000005E80000-0x0000000006424000-memory.dmp

Filesize
5.6MB

Download
memory/1396-2-0x0000000005830000-0x00000000058CC000-memory.dmp

Filesize
624KB

Download
memory/4244-22-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/4244-19-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4244-24-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/4244-25-0x0000000005C70000-0x0000000005C88000-memory.dmp

Filesize
96KB

Download
memory/4244-26-0x0000000005D00000-0x0000000005D66000-memory.dmp

Filesize
408KB

Download
memory/4244-27-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/4244-28-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/4244-29-0x0000000006A50000-0x0000000006AA0000-memory.dmp

Filesize
320KB

Download
memory/4244-30-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download