agenttesla | 9557bc3e8544245727beca4004e71d616515ce39dc8b6cc27c3332614e9aa27a

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08-01-2025 23:50

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General

Target

JaffaCakes118_b37307f153f10f0299c68e21cda50830.exe
Size

350KB
MD5

b37307f153f10f0299c68e21cda50830
SHA1

1475e31efca6cbaccbc4c942a88c500e0b22ccb0
SHA256

9557bc3e8544245727beca4004e71d616515ce39dc8b6cc27c3332614e9aa27a
SHA512

995bdd5eccc5801cd58284d385e1fd74f3fb2db9e884617d129ec4e77df75a504b0e7edf586b86bc3f979da7f8243d7c06752b993521245e373e7c9b6f87baca
SSDEEP

6144:sZl2fltfzOHfEu6YdtLnIbtLV0433k85AKYzAeCnvW1BzdCC0Af3a1:sm/2JndtOtZLkqUzAeCvW1+dM3a1

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence spyware stealer trojan upx

Malware Config

Signatures

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

AgentTesla payload 17 IoCs

resource	yara_rule
behavioral1/memory/2488-67-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/2488-69-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/2488-68-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/2488-81-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/2488-84-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/2488-90-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/2488-89-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/2488-87-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/2488-83-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/2488-79-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/2488-78-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/2488-77-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/2488-76-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/2488-75-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/2488-74-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/2488-73-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla
behavioral1/memory/2488-92-0x0000000000400000-0x000000000044E000-memory.dmp	family_agenttesla

Executes dropped EXE 2 IoCs

pid	Process
2916	Yrpwwkjwo4G7bTB.exe
2180	CTS.exe

Loads dropped DLL 2 IoCs

pid	Process
2428	JaffaCakes118_b37307f153f10f0299c68e21cda50830.exe
2428	JaffaCakes118_b37307f153f10f0299c68e21cda50830.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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	JaffaCakes118_b37307f153f10f0299c68e21cda50830.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	CTS.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\MyApp = "C:\\Users\\Admin\\AppData\\Roaming\\MyApp\\MyApp.exe"	RegAsm.exe

Looks up external IP address via web service 1 IoCs

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

flow	ioc
4	checkip.amazonaws.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2916 set thread context of 2488	2916	Yrpwwkjwo4G7bTB.exe	32

UPX packed file 9 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2428-0-0x00000000000B0000-0x00000000000C9000-memory.dmp	upx
behavioral1/files/0x0008000000012102-2.dat	upx
behavioral1/memory/2428-4-0x0000000000140000-0x00000000001A1000-memory.dmp	upx
behavioral1/files/0x0008000000014714-12.dat	upx
behavioral1/memory/2428-17-0x00000000000B0000-0x00000000000C9000-memory.dmp	upx
behavioral1/memory/2180-20-0x0000000001330000-0x0000000001349000-memory.dmp	upx
behavioral1/memory/2428-13-0x0000000000070000-0x0000000000089000-memory.dmp	upx
behavioral1/memory/2916-28-0x0000000000C50000-0x0000000000CB1000-memory.dmp	upx
behavioral1/memory/2916-71-0x0000000000C50000-0x0000000000CB1000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	JaffaCakes118_b37307f153f10f0299c68e21cda50830.exe
File created	C:\Windows\CTS.exe	CTS.exe

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	JaffaCakes118_b37307f153f10f0299c68e21cda50830.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Yrpwwkjwo4G7bTB.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2916	Yrpwwkjwo4G7bTB.exe
2916	Yrpwwkjwo4G7bTB.exe
2916	Yrpwwkjwo4G7bTB.exe
2916	Yrpwwkjwo4G7bTB.exe
2488	RegAsm.exe
2488	RegAsm.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2916	Yrpwwkjwo4G7bTB.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2428	JaffaCakes118_b37307f153f10f0299c68e21cda50830.exe
Token: SeDebugPrivilege	2180	CTS.exe
Token: SeDebugPrivilege	2488	RegAsm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2488	RegAsm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2428 wrote to memory of 2916	2428	JaffaCakes118_b37307f153f10f0299c68e21cda50830.exe	28
PID 2428 wrote to memory of 2916	2428	JaffaCakes118_b37307f153f10f0299c68e21cda50830.exe	28
PID 2428 wrote to memory of 2916	2428	JaffaCakes118_b37307f153f10f0299c68e21cda50830.exe	28
PID 2428 wrote to memory of 2916	2428	JaffaCakes118_b37307f153f10f0299c68e21cda50830.exe	28
PID 2428 wrote to memory of 2180	2428	JaffaCakes118_b37307f153f10f0299c68e21cda50830.exe	29
PID 2428 wrote to memory of 2180	2428	JaffaCakes118_b37307f153f10f0299c68e21cda50830.exe	29
PID 2428 wrote to memory of 2180	2428	JaffaCakes118_b37307f153f10f0299c68e21cda50830.exe	29
PID 2428 wrote to memory of 2180	2428	JaffaCakes118_b37307f153f10f0299c68e21cda50830.exe	29
PID 2916 wrote to memory of 2488	2916	Yrpwwkjwo4G7bTB.exe	32
PID 2916 wrote to memory of 2488	2916	Yrpwwkjwo4G7bTB.exe	32
PID 2916 wrote to memory of 2488	2916	Yrpwwkjwo4G7bTB.exe	32
PID 2916 wrote to memory of 2488	2916	Yrpwwkjwo4G7bTB.exe	32
PID 2916 wrote to memory of 2488	2916	Yrpwwkjwo4G7bTB.exe	32
PID 2916 wrote to memory of 2488	2916	Yrpwwkjwo4G7bTB.exe	32
PID 2916 wrote to memory of 2488	2916	Yrpwwkjwo4G7bTB.exe	32
PID 2916 wrote to memory of 2488	2916	Yrpwwkjwo4G7bTB.exe	32

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b37307f153f10f0299c68e21cda50830.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b37307f153f10f0299c68e21cda50830.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2428
- C:\Users\Admin\AppData\Local\Temp\Yrpwwkjwo4G7bTB.exe
  C:\Users\Admin\AppData\Local\Temp\Yrpwwkjwo4G7bTB.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2916
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
    C:\Users\Admin\AppData\Local\Temp\Yrpwwkjwo4G7bTB.exe
    3⤵
    - Accesses Microsoft Outlook profiles
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - outlook_office_path
    - outlook_win_path
    PID:2488
- C:\Windows\CTS.exe
  "C:\Windows\CTS.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  PID:2180

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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

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:\Windows\CTS.exe

Filesize
82KB

MD5
546ffd2b72777e6a9e350780b79f99d4

SHA1
a620be74a2f432656e38e51cd02fbdc3e3b312c2

SHA256
c651b378896fad56ddeb1fec2c578a822bbb13269ec881f9420bbf47c9fbfbb5

SHA512
57d49f830f9774ef0a4b6d026211360ea4ebcc6b236b72107401284559c7c589733bccc8af10c5a0cee5b97880d24a4e9954beb81887b1b124f8a42cca456fac

Download Submit
\Users\Admin\AppData\Local\Temp\Yrpwwkjwo4G7bTB.exe

Filesize
267KB

MD5
c9f00fe1929c71a9de2e73434b288eee

SHA1
2e1932cbe3cacfbd27ec01c089ad0b4e8268d8a7

SHA256
478f1269193cc62ff2180c53eecc56e287417539287520e03b362773b58c78be

SHA512
f9ce552a3ccd219692ef38c71f9a2959ffa08e9dc14ca0ec69c354a24fe855515c0525ca8e6e2c9cad48e4967774178c5cee7dc88fb577dc4dec0bc4616c8600

Download Submit
memory/2180-20-0x0000000001330000-0x0000000001349000-memory.dmp

Filesize
100KB

Download
memory/2428-0-0x00000000000B0000-0x00000000000C9000-memory.dmp

Filesize
100KB

Download
memory/2428-4-0x0000000000140000-0x00000000001A1000-memory.dmp

Filesize
388KB

Download
memory/2428-10-0x0000000000140000-0x00000000001A1000-memory.dmp

Filesize
388KB

Download
memory/2428-17-0x00000000000B0000-0x00000000000C9000-memory.dmp

Filesize
100KB

Download
memory/2428-13-0x0000000000070000-0x0000000000089000-memory.dmp

Filesize
100KB

Download
memory/2488-76-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2488-92-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2488-74-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2488-75-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2488-67-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2488-77-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2488-78-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2488-79-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2488-83-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2488-73-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2488-87-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2488-89-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2488-90-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2488-84-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2488-81-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2488-68-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2488-69-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2916-58-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-29-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-48-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-47-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-46-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-45-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-44-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-43-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-42-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-41-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-40-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-39-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-38-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-37-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-36-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-35-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-34-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-33-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-32-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-31-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-30-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-49-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-28-0x0000000000C50000-0x0000000000CB1000-memory.dmp

Filesize
388KB

Download
memory/2916-27-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-26-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-25-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-50-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-51-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-52-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-71-0x0000000000C50000-0x0000000000CB1000-memory.dmp

Filesize
388KB

Download
memory/2916-53-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-54-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-55-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-56-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-57-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-59-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-60-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-61-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-62-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-63-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-64-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-65-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-66-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2916-24-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download