agenttesla | b796ebc23a355b8fbd29552b2ff7142f09617c25a30a33d5a92626f69e337d48

Analysis

max time kernel
93s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21-09-2024 04:09

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General

Target

ef0aafefa653a36a33a9a8469f1e8159_JaffaCakes118.exe
Size

531KB
MD5

ef0aafefa653a36a33a9a8469f1e8159
SHA1

00abdec221e84a67140e2ae239f4c64a9213b211
SHA256

b796ebc23a355b8fbd29552b2ff7142f09617c25a30a33d5a92626f69e337d48
SHA512

bb778a37da1b9b325da9719195830f5e2877d4fbffda74927b8baff5e714dd0c73b3f3b19c567554191bb105779d229a029e2da3f82bc9831a755c2d06c2c72f
SSDEEP

12288:KiTzYG1w0wODUfOg5ZodnvtcZCnRn0LdAA:KiTz/tUfjwnvhnRngA

Score

10^/10

agenttesla collection credential_access defense_evasion discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail3.dynamail.asia
Port:
587
Username:
[email protected]
Password:
Fehm.718907M

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/3344-207-0x0000000000400000-0x0000000000436000-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

System Binary Proxy Execution: InstallUtil 1 TTPs 2 IoCs

Abuse InstallUtil to proxy execution of malicious code.

defense_evasion

InstallUtil

T1218.004

description	ioc	Process
Key opened	\Registry\Machine\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Custom\InstallUtil.exe	ef0aafefa653a36a33a9a8469f1e8159_JaffaCakes118.exe
File created	C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe	ef0aafefa653a36a33a9a8469f1e8159_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
3344	InstallUtil.exe

Loads dropped DLL 1 IoCs

pid	Process
2164	ef0aafefa653a36a33a9a8469f1e8159_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-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2164 set thread context of 3344	2164	ef0aafefa653a36a33a9a8469f1e8159_JaffaCakes118.exe	91

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	ef0aafefa653a36a33a9a8469f1e8159_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2164	ef0aafefa653a36a33a9a8469f1e8159_JaffaCakes118.exe
3344	InstallUtil.exe
3344	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2164	ef0aafefa653a36a33a9a8469f1e8159_JaffaCakes118.exe
Token: SeDebugPrivilege	3344	InstallUtil.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3344	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2164 wrote to memory of 3344	2164	ef0aafefa653a36a33a9a8469f1e8159_JaffaCakes118.exe	91
PID 2164 wrote to memory of 3344	2164	ef0aafefa653a36a33a9a8469f1e8159_JaffaCakes118.exe	91
PID 2164 wrote to memory of 3344	2164	ef0aafefa653a36a33a9a8469f1e8159_JaffaCakes118.exe	91
PID 2164 wrote to memory of 3344	2164	ef0aafefa653a36a33a9a8469f1e8159_JaffaCakes118.exe	91
PID 2164 wrote to memory of 3344	2164	ef0aafefa653a36a33a9a8469f1e8159_JaffaCakes118.exe	91
PID 2164 wrote to memory of 3344	2164	ef0aafefa653a36a33a9a8469f1e8159_JaffaCakes118.exe	91
PID 2164 wrote to memory of 3344	2164	ef0aafefa653a36a33a9a8469f1e8159_JaffaCakes118.exe	91
PID 2164 wrote to memory of 3344	2164	ef0aafefa653a36a33a9a8469f1e8159_JaffaCakes118.exe	91

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\ef0aafefa653a36a33a9a8469f1e8159_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ef0aafefa653a36a33a9a8469f1e8159_JaffaCakes118.exe"
1⤵
- System Binary Proxy Execution: InstallUtil
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2164
- C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
  "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
  2⤵
  - Executes dropped EXE
  - 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:3344

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

System Binary Proxy Execution

T1218

InstallUtil

T1218.004

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:\Users\Admin\AppData\Local\Temp\InstallUtil.exe

Filesize
41KB

MD5
5d4073b2eb6d217c19f2b22f21bf8d57

SHA1
f0209900fbf08d004b886a0b3ba33ea2b0bf9da8

SHA256
ac1a3f21fcc88f9cee7bf51581eafba24cc76c924f0821deb2afdf1080ddf3d3

SHA512
9ac94880684933ba3407cdc135abc3047543436567af14cd9269c4adc5a6535db7b867d6de0d6238a21b94e69f9890dbb5739155871a624520623a7e56872159

Download Submit
C:\Users\Admin\AppData\Local\Temp\b1f92ac9-345d-4ee6-83d6-512dab76f3b9\i.dll

Filesize
94KB

MD5
14ff402962ad21b78ae0b4c43cd1f194

SHA1
f8a510eb26666e875a5bdd1cadad40602763ad72

SHA256
fb9646cb956945bdc503e69645f6b5316d3826b780d3c36738d6b944e884d15b

SHA512
daa7a08bf3709119a944bce28f6ebdd24e54a22b18cd9f86a87873e958df121a3881dcdd5e162f6b4e543238c7aef20f657c9830df01d4c79290f7c9a4fcc54b

Download Submit
memory/2164-0-0x000000007507E000-0x000000007507F000-memory.dmp

Filesize
4KB

Download
memory/2164-1-0x0000000000380000-0x000000000040A000-memory.dmp

Filesize
552KB

Download
memory/2164-2-0x0000000075070000-0x0000000075820000-memory.dmp

Filesize
7.7MB

Download
memory/2164-3-0x0000000004CD0000-0x0000000004CFC000-memory.dmp

Filesize
176KB

Download
memory/2164-4-0x0000000005620000-0x0000000005BC4000-memory.dmp

Filesize
5.6MB

Download
memory/2164-5-0x0000000004DA0000-0x0000000004DE4000-memory.dmp

Filesize
272KB

Download
memory/2164-6-0x0000000004EA0000-0x0000000004F32000-memory.dmp

Filesize
584KB

Download
memory/2164-68-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-78-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-77-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-74-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-72-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-70-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-66-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-64-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-62-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-60-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-58-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-56-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-54-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-50-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-48-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-46-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-44-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-42-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-40-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-38-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-36-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-34-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-30-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-22-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-20-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-18-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-16-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-15-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-14-0x0000000073A80000-0x0000000073B09000-memory.dmp

Filesize
548KB

Download
memory/2164-52-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-32-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-28-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-26-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-24-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/2164-195-0x000000007507E000-0x000000007507F000-memory.dmp

Filesize
4KB

Download
memory/2164-196-0x0000000075070000-0x0000000075820000-memory.dmp

Filesize
7.7MB

Download
memory/2164-197-0x0000000075070000-0x0000000075820000-memory.dmp

Filesize
7.7MB

Download
memory/2164-199-0x0000000075070000-0x0000000075820000-memory.dmp

Filesize
7.7MB

Download
memory/2164-200-0x0000000006490000-0x000000000649C000-memory.dmp

Filesize
48KB

Download
memory/2164-208-0x0000000075070000-0x0000000075820000-memory.dmp

Filesize
7.7MB

Download
memory/3344-206-0x0000000075070000-0x0000000075820000-memory.dmp

Filesize
7.7MB

Download
memory/3344-207-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/3344-209-0x0000000075070000-0x0000000075820000-memory.dmp

Filesize
7.7MB

Download
memory/3344-210-0x00000000057F0000-0x000000000588C000-memory.dmp

Filesize
624KB

Download
memory/3344-211-0x0000000005BD0000-0x0000000005BE8000-memory.dmp

Filesize
96KB

Download
memory/3344-212-0x0000000006470000-0x00000000064D6000-memory.dmp

Filesize
408KB

Download
memory/3344-213-0x0000000006CA0000-0x0000000006CF0000-memory.dmp

Filesize
320KB

Download
memory/3344-214-0x0000000006D70000-0x0000000006D7A000-memory.dmp

Filesize
40KB

Download
memory/3344-215-0x0000000075070000-0x0000000075820000-memory.dmp

Filesize
7.7MB

Download
memory/3344-216-0x0000000075070000-0x0000000075820000-memory.dmp

Filesize
7.7MB

Download