agenttesla | b5ed3dead9212794fe1c3d66ac26cb3aef679980fdf63100e517f876655b0575

Analysis

max time kernel
90s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
17-09-2024 15:15

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General

Target

e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe
Size

703KB
MD5

e71ae1235b84f9f5195ce82281600f38
SHA1

e8449868f37bb95ed664cfb3048ec40cd699208c
SHA256

b5ed3dead9212794fe1c3d66ac26cb3aef679980fdf63100e517f876655b0575
SHA512

5542e64bb2983a95a5e375f317bac2179c695d232e298f46a2eadf051dc6b53fee5c1b01a4c5f0dc5482352438253bbc69a0ecc84095dcb1db7acc205db3d3e0
SSDEEP

12288:+CDqFNXLBiGWkKz5S/JvijiODS/zPGmY+C5caoGpNPh3NU62:4cGWkKzQ5MaLZY+COcpBh9K

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.nhbisun.net
Port:
587
Username:
[email protected]
Password:
7N_xUdf!3gm*

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/208-15-0x0000000000400000-0x0000000000466000-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

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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	e71ae1235b84f9f5195ce82281600f38_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 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
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-1-5-21-355097885-2402257403-2971294179-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mikapp = "C:\\Users\\Admin\\AppData\\Roaming\\mikapp\\mikapp.exe"	e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1668 set thread context of 208	1668	e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe	96

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	e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e71ae1235b84f9f5195ce82281600f38_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
2900	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1668	e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe
1668	e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe
1668	e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe
1668	e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe
208	e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe
208	e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
208	e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1668	e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe
Token: SeDebugPrivilege	208	e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
208	e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1668 wrote to memory of 2900	1668	e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe	94
PID 1668 wrote to memory of 2900	1668	e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe	94
PID 1668 wrote to memory of 2900	1668	e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe	94
PID 1668 wrote to memory of 208	1668	e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe	96
PID 1668 wrote to memory of 208	1668	e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe	96
PID 1668 wrote to memory of 208	1668	e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe	96
PID 1668 wrote to memory of 208	1668	e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe	96
PID 1668 wrote to memory of 208	1668	e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe	96
PID 1668 wrote to memory of 208	1668	e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe	96
PID 1668 wrote to memory of 208	1668	e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe	96
PID 1668 wrote to memory of 208	1668	e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe	96

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e71ae1235b84f9f5195ce82281600f38_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:1668
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\eztCdpL" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA3EC.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2900
- C:\Users\Admin\AppData\Local\Temp\e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:208

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

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

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\e71ae1235b84f9f5195ce82281600f38_JaffaCakes118.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpA3EC.tmp

Filesize
1KB

MD5
ce487827a94b27431cad4a048aa19e7d

SHA1
0b2d55be3a156de2eef1ba47dd8fa5ef2757311f

SHA256
6a1bbf5b7b59099625ade0a90661e0547fd0964a6cd20e214958d12b8b25d6b2

SHA512
4ca734b55dbf7e175818a02be8881468a03ecc11b28775b562b30f0593e310bcba13621df99fe12b2830ef57d95d2f32d6ab569c8cbf8810fb8c95ca5732655c

Download Submit
memory/208-28-0x0000000074B40000-0x00000000752F0000-memory.dmp

Filesize
7.7MB

Download
memory/208-24-0x00000000068C0000-0x0000000006910000-memory.dmp

Filesize
320KB

Download
memory/208-22-0x0000000006040000-0x00000000060A6000-memory.dmp

Filesize
408KB

Download
memory/208-21-0x0000000005220000-0x0000000005238000-memory.dmp

Filesize
96KB

Download
memory/208-20-0x0000000074B40000-0x00000000752F0000-memory.dmp

Filesize
7.7MB

Download
memory/208-18-0x0000000074B40000-0x00000000752F0000-memory.dmp

Filesize
7.7MB

Download
memory/208-15-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1668-5-0x0000000005870000-0x000000000587A000-memory.dmp

Filesize
40KB

Download
memory/1668-10-0x0000000007280000-0x000000000731C000-memory.dmp

Filesize
624KB

Download
memory/1668-11-0x0000000009870000-0x00000000098EA000-memory.dmp

Filesize
488KB

Download
memory/1668-9-0x0000000007160000-0x00000000071DE000-memory.dmp

Filesize
504KB

Download
memory/1668-8-0x0000000074B40000-0x00000000752F0000-memory.dmp

Filesize
7.7MB

Download
memory/1668-7-0x0000000074B4E000-0x0000000074B4F000-memory.dmp

Filesize
4KB

Download
memory/1668-6-0x0000000005A80000-0x0000000005A8A000-memory.dmp

Filesize
40KB

Download
memory/1668-19-0x0000000074B40000-0x00000000752F0000-memory.dmp

Filesize
7.7MB

Download
memory/1668-0-0x0000000074B4E000-0x0000000074B4F000-memory.dmp

Filesize
4KB

Download
memory/1668-4-0x0000000074B40000-0x00000000752F0000-memory.dmp

Filesize
7.7MB

Download
memory/1668-3-0x00000000058C0000-0x0000000005952000-memory.dmp

Filesize
584KB

Download
memory/1668-2-0x0000000005DD0000-0x0000000006374000-memory.dmp

Filesize
5.6MB

Download
memory/1668-1-0x0000000000E00000-0x0000000000EB6000-memory.dmp

Filesize
728KB

Download