agenttesla | 2e458fac49a9dbff3aaed5490489b577773b6b76792597b584df3ff9b2dff143

Analysis

max time kernel
30s
max time network
135s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
03/05/2023, 01:45

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General

Target

7b4164cc352f02f53d9f49d8a5d6df6221b85c5412fcb133462c5d779730dc64.exe
Size

566KB
MD5

71c8f4b6fe02eae1ae062af24d751674
SHA1

f442aa3847109e33868e671d833314693f4202c1
SHA256

7b4164cc352f02f53d9f49d8a5d6df6221b85c5412fcb133462c5d779730dc64
SHA512

f9449e39035cac512dd5657d752ea7660f6148955af110e6a897a66a258e30b2ded77eb24221be202245804a8807c2c42f024822a559c1982c91f536f9705d86
SSDEEP

12288:8YZ9daFLvg+AHMX89IX1p7X4Z36IeMLEJOXWV:8YZ9daFLvBAH7qX1FIZ3Leo6OM

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Signatures

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

Executes dropped EXE 2 IoCs

pid	Process
928	wnilggqyy.exe
520	wnilggqyy.exe

Loads dropped DLL 2 IoCs

pid	Process
1964	7b4164cc352f02f53d9f49d8a5d6df6221b85c5412fcb133462c5d779730dc64.exe
928	wnilggqyy.exe

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
T1081
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
T1081
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
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	wnilggqyy.exe
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	wnilggqyy.exe
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	wnilggqyy.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Windows\CurrentVersion\Run\newapp = "C:\\Users\\Admin\\AppData\\Roaming\\newapp\\newapp.exe"	wnilggqyy.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
3	api.ipify.org
4	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 928 set thread context of 520	928	wnilggqyy.exe	29

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
928	wnilggqyy.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	520	wnilggqyy.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
520	wnilggqyy.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1964 wrote to memory of 928	1964	7b4164cc352f02f53d9f49d8a5d6df6221b85c5412fcb133462c5d779730dc64.exe	28
PID 1964 wrote to memory of 928	1964	7b4164cc352f02f53d9f49d8a5d6df6221b85c5412fcb133462c5d779730dc64.exe	28
PID 1964 wrote to memory of 928	1964	7b4164cc352f02f53d9f49d8a5d6df6221b85c5412fcb133462c5d779730dc64.exe	28
PID 1964 wrote to memory of 928	1964	7b4164cc352f02f53d9f49d8a5d6df6221b85c5412fcb133462c5d779730dc64.exe	28
PID 928 wrote to memory of 520	928	wnilggqyy.exe	29
PID 928 wrote to memory of 520	928	wnilggqyy.exe	29
PID 928 wrote to memory of 520	928	wnilggqyy.exe	29
PID 928 wrote to memory of 520	928	wnilggqyy.exe	29
PID 928 wrote to memory of 520	928	wnilggqyy.exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	wnilggqyy.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	wnilggqyy.exe

C:\Users\Admin\AppData\Local\Temp\7b4164cc352f02f53d9f49d8a5d6df6221b85c5412fcb133462c5d779730dc64.exe
"C:\Users\Admin\AppData\Local\Temp\7b4164cc352f02f53d9f49d8a5d6df6221b85c5412fcb133462c5d779730dc64.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1964
- C:\Users\Admin\AppData\Local\Temp\wnilggqyy.exe
  "C:\Users\Admin\AppData\Local\Temp\wnilggqyy.exe" C:\Users\Admin\AppData\Local\Temp\zixaxlhts.oz
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:928
- - C:\Users\Admin\AppData\Local\Temp\wnilggqyy.exe
    "C:\Users\Admin\AppData\Local\Temp\wnilggqyy.exe"
    3⤵
    - Executes dropped EXE
    - Accesses Microsoft Outlook profiles
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - outlook_office_path
    - outlook_win_path
    PID:520

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tovsndq.q

Filesize
482KB

MD5
1a98dc016fa7e93057012a354afeccaf

SHA1
615be860b9bef63a30f4bcbac366c7e94cd66df0

SHA256
dead0052aa3ab3485863f31e8b881b8eeac74f1015e470115d607a6ec0dac112

SHA512
85f5b642b177cc6aee02153029b5cb9c2cb9172fae03d767139f6f5ac3207e17fcaa692402059598de6f801c9c9a5586bb99ed7ce0655412547b282bd36e21c9

Download Submit
C:\Users\Admin\AppData\Local\Temp\wnilggqyy.exe

Filesize
45KB

MD5
373e0b06b3c227434ae1c8eb6c5403f1

SHA1
1a6f1faed3a003e6d8624f221df3049d5da66d0a

SHA256
605f3f7c18d4e43f1a3e1468e04b2b6760e1d8b0674ce5777923abf2c93b4c23

SHA512
2b2c4d13ea34099af91ac803c6ebc4a818fdbe363959128803a5cef6166579405b6629790dfa365f1c79732cf80622f2ca0c856add757b59e949ddc52f690c8e

Download Submit
C:\Users\Admin\AppData\Local\Temp\wnilggqyy.exe

Filesize
45KB

MD5
373e0b06b3c227434ae1c8eb6c5403f1

SHA1
1a6f1faed3a003e6d8624f221df3049d5da66d0a

SHA256
605f3f7c18d4e43f1a3e1468e04b2b6760e1d8b0674ce5777923abf2c93b4c23

SHA512
2b2c4d13ea34099af91ac803c6ebc4a818fdbe363959128803a5cef6166579405b6629790dfa365f1c79732cf80622f2ca0c856add757b59e949ddc52f690c8e

Download Submit
C:\Users\Admin\AppData\Local\Temp\wnilggqyy.exe

Filesize
45KB

MD5
373e0b06b3c227434ae1c8eb6c5403f1

SHA1
1a6f1faed3a003e6d8624f221df3049d5da66d0a

SHA256
605f3f7c18d4e43f1a3e1468e04b2b6760e1d8b0674ce5777923abf2c93b4c23

SHA512
2b2c4d13ea34099af91ac803c6ebc4a818fdbe363959128803a5cef6166579405b6629790dfa365f1c79732cf80622f2ca0c856add757b59e949ddc52f690c8e

Download Submit
C:\Users\Admin\AppData\Local\Temp\zixaxlhts.oz

Filesize
5KB

MD5
1e47e31d39fe391101f1b9c48533f098

SHA1
2aecaf358293c13f8e73ab96a2fe108c93506d7d

SHA256
23603b5e19426180a84968a50de5a4c4faa8adc04ec8b9e92c8a50db4281084a

SHA512
7597261e46e4c6802530dbf20eca0136da70766af51e0f411fbe6b59ee43f5cbb6094b2da2142c36fa1d1041fb570bb12a143b842f1f7bf5f47d084762814042

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

Filesize
45KB

MD5
373e0b06b3c227434ae1c8eb6c5403f1

SHA1
1a6f1faed3a003e6d8624f221df3049d5da66d0a

SHA256
605f3f7c18d4e43f1a3e1468e04b2b6760e1d8b0674ce5777923abf2c93b4c23

SHA512
2b2c4d13ea34099af91ac803c6ebc4a818fdbe363959128803a5cef6166579405b6629790dfa365f1c79732cf80622f2ca0c856add757b59e949ddc52f690c8e

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

Filesize
45KB

MD5
373e0b06b3c227434ae1c8eb6c5403f1

SHA1
1a6f1faed3a003e6d8624f221df3049d5da66d0a

SHA256
605f3f7c18d4e43f1a3e1468e04b2b6760e1d8b0674ce5777923abf2c93b4c23

SHA512
2b2c4d13ea34099af91ac803c6ebc4a818fdbe363959128803a5cef6166579405b6629790dfa365f1c79732cf80622f2ca0c856add757b59e949ddc52f690c8e

Download Submit
memory/520-65-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/520-69-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/520-70-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/520-71-0x0000000000620000-0x0000000000686000-memory.dmp

Filesize
408KB

Download
memory/520-72-0x0000000000D10000-0x0000000000D50000-memory.dmp

Filesize
256KB

Download