agenttesla | a7059e45ebb9d1f31858232b07857da943cd75c8689da5a475ca8d54293df7b0

Analysis

max time kernel
134s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
14/01/2025, 01:23

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General

Target

a7059e45ebb9d1f31858232b07857da943cd75c8689da5a475ca8d54293df7b0.exe
Size

982KB
MD5

f1223e61e7123b96e3d7ac919c32f985
SHA1

98db85562644048cd37596ca66d2b9d8035410c0
SHA256

a7059e45ebb9d1f31858232b07857da943cd75c8689da5a475ca8d54293df7b0
SHA512

3f73233e25d1f8bd7cae75a11b3913429928a492ed087fe685e249799f7f9812a7258bf25f16adfc628f42ee6f68e53278159bc571bd94c85094ce9c58f7d420
SSDEEP

12288:V5I0wXiC25YyzNTeO43a9pTpDXSu3LfH30xXgDFiZYKdD+o:XV1wab1DCkowDFi3D+o

Score

10^/10

agenttesla agilenet collection credential_access defense_evasion discovery keylogger spyware stealer trojan

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 1 IoCs

resource	yara_rule
behavioral2/memory/3836-14-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla

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
File created	C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe	a7059e45ebb9d1f31858232b07857da943cd75c8689da5a475ca8d54293df7b0.exe
Key opened	\Registry\Machine\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Custom\InstallUtil.exe	a7059e45ebb9d1f31858232b07857da943cd75c8689da5a475ca8d54293df7b0.exe

Executes dropped EXE 1 IoCs

pid	Process
3836	InstallUtil.exe

Obfuscated with Agile.Net obfuscator 1 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

resource	yara_rule
behavioral2/memory/4856-3-0x0000000004F80000-0x0000000004F94000-memory.dmp	agile_net

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-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4856 set thread context of 3836	4856	a7059e45ebb9d1f31858232b07857da943cd75c8689da5a475ca8d54293df7b0.exe	93

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	a7059e45ebb9d1f31858232b07857da943cd75c8689da5a475ca8d54293df7b0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4856	a7059e45ebb9d1f31858232b07857da943cd75c8689da5a475ca8d54293df7b0.exe
3836	InstallUtil.exe
3836	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4856	a7059e45ebb9d1f31858232b07857da943cd75c8689da5a475ca8d54293df7b0.exe
Token: SeDebugPrivilege	3836	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4856 wrote to memory of 3836	4856	a7059e45ebb9d1f31858232b07857da943cd75c8689da5a475ca8d54293df7b0.exe	93
PID 4856 wrote to memory of 3836	4856	a7059e45ebb9d1f31858232b07857da943cd75c8689da5a475ca8d54293df7b0.exe	93
PID 4856 wrote to memory of 3836	4856	a7059e45ebb9d1f31858232b07857da943cd75c8689da5a475ca8d54293df7b0.exe	93
PID 4856 wrote to memory of 3836	4856	a7059e45ebb9d1f31858232b07857da943cd75c8689da5a475ca8d54293df7b0.exe	93
PID 4856 wrote to memory of 3836	4856	a7059e45ebb9d1f31858232b07857da943cd75c8689da5a475ca8d54293df7b0.exe	93
PID 4856 wrote to memory of 3836	4856	a7059e45ebb9d1f31858232b07857da943cd75c8689da5a475ca8d54293df7b0.exe	93
PID 4856 wrote to memory of 3836	4856	a7059e45ebb9d1f31858232b07857da943cd75c8689da5a475ca8d54293df7b0.exe	93
PID 4856 wrote to memory of 3836	4856	a7059e45ebb9d1f31858232b07857da943cd75c8689da5a475ca8d54293df7b0.exe	93

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\a7059e45ebb9d1f31858232b07857da943cd75c8689da5a475ca8d54293df7b0.exe
"C:\Users\Admin\AppData\Local\Temp\a7059e45ebb9d1f31858232b07857da943cd75c8689da5a475ca8d54293df7b0.exe"
1⤵
- System Binary Proxy Execution: InstallUtil
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4856
- 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
  - outlook_office_path
  - outlook_win_path
  PID:3836

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
memory/3836-22-0x0000000005440000-0x0000000005458000-memory.dmp

Filesize
96KB

Download
memory/3836-19-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/3836-27-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/3836-26-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/3836-25-0x0000000006A30000-0x0000000006A3A000-memory.dmp

Filesize
40KB

Download
memory/3836-24-0x0000000006A50000-0x0000000006AA0000-memory.dmp

Filesize
320KB

Download
memory/3836-23-0x0000000005B00000-0x0000000005B66000-memory.dmp

Filesize
408KB

Download
memory/3836-21-0x00000000055F0000-0x000000000568C000-memory.dmp

Filesize
624KB

Download
memory/3836-14-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/3836-20-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/4856-7-0x0000000005840000-0x00000000058D2000-memory.dmp

Filesize
584KB

Download
memory/4856-9-0x0000000006BC0000-0x0000000006C04000-memory.dmp

Filesize
272KB

Download
memory/4856-8-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/4856-2-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/4856-18-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/4856-11-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/4856-1-0x0000000000590000-0x000000000068C000-memory.dmp

Filesize
1008KB

Download
memory/4856-0-0x0000000074FEE000-0x0000000074FEF000-memory.dmp

Filesize
4KB

Download
memory/4856-12-0x0000000005970000-0x000000000597C000-memory.dmp

Filesize
48KB

Download
memory/4856-6-0x0000000005D10000-0x00000000062B4000-memory.dmp

Filesize
5.6MB

Download
memory/4856-5-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/4856-4-0x0000000074FEE000-0x0000000074FEF000-memory.dmp

Filesize
4KB

Download
memory/4856-3-0x0000000004F80000-0x0000000004F94000-memory.dmp

Filesize
80KB

Download