agenttesla | 2d0330a58cc90106c859b413e6f6fa5f5bae309123fc187c6552ee7086ed9b74

Analysis

max time kernel
150s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
31-07-2023 08:59

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General

Target

ORDER-230733AF.pdf.vbs
Size

3.3MB
MD5

535074e18bb8158e02c210a49b608d27
SHA1

773c9512cb8e3629d90abbb2c61bab322032511d
SHA256

17d541ebec88f36a380096bc34ab5e358a75a02395f14ce35b067304d94260f9
SHA512

43e1afa8d1e08fb7b12ebf6edb075ea5ce0df662e890b57fe5b95d831fbb0c69063c7c44055cdfce627c5a3aecee32f5beeeb443af66bbdc31f7551b34bda966
SSDEEP

6144:5TLuIztXQahBE8pyDIg+8LBEa47U+T1dk9nJbAIcKU/JaShKUHQLJrRt4/ea4lvg:5/fBLE/t4/ea4lo

Score

10^/10

agenttesla wshrat collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
smtp.gmail.com
Port:
587
Username:
[email protected]
Password:
gmipgqhnffzhjcfv

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.gmail.com
Port:
587
Username:
[email protected]
Password:
gmipgqhnffzhjcfv
Email To:
[email protected]

Extracted

Family

wshrat

http://lee44.kozow.com:4078

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
WSHRAT
WSHRAT is a variant of Houdini worm and has vbs and js variants.
trojan wshrat

Blocklisted process makes network request 27 IoCs

flow	pid	Process
25	1236	wscript.exe
27	1236	wscript.exe
35	1236	wscript.exe
38	1236	wscript.exe
40	1236	wscript.exe
50	1236	wscript.exe
56	1236	wscript.exe
65	1236	wscript.exe
66	1236	wscript.exe
67	1236	wscript.exe
68	1236	wscript.exe
71	1236	wscript.exe
72	1236	wscript.exe
73	1236	wscript.exe
76	1236	wscript.exe
77	1236	wscript.exe
79	1236	wscript.exe
80	1236	wscript.exe
81	1236	wscript.exe
82	1236	wscript.exe
83	1236	wscript.exe
84	1236	wscript.exe
85	1236	wscript.exe
86	1236	wscript.exe
89	1236	wscript.exe
91	1236	wscript.exe
92	1236	wscript.exe

Checks computer location settings 2 TTPs 3 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-1-5-21-4176143399-3250363947-192774652-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\Control Panel\International\Geo\Nation	wscript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\Control Panel\International\Geo\Nation	WScript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ORDER-230733AF.pdf.vbs	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ORDER-230733AF.pdf.vbs	wscript.exe

Executes dropped EXE 1 IoCs

pid	Process
1480	Tempwinlogon.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
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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Tempwinlogon.exe
Key opened	\REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Tempwinlogon.exe
Key opened	\REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Tempwinlogon.exe

Adds Run key to start application 2 TTPs 9 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\software\microsoft\windows\currentversion\run	WScript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ORDER-230733AF = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\ORDER-230733AF.pdf.vbs\""	WScript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ORDER-230733AF = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\ORDER-230733AF.pdf.vbs\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Windows Update\\Windows Update.exe"	Tempwinlogon.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	WScript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ORDER-230733AF = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\ORDER-230733AF.pdf.vbs\""	WScript.exe
Key created	\REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\software\microsoft\windows\currentversion\run	wscript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ORDER-230733AF = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\ORDER-230733AF.pdf.vbs\""	wscript.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
24	ip-api.com

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000_Classes\Local Settings	wscript.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1480	Tempwinlogon.exe
1480	Tempwinlogon.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1480	Tempwinlogon.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1480	Tempwinlogon.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1132 wrote to memory of 1236	1132	WScript.exe	89
PID 1132 wrote to memory of 1236	1132	WScript.exe	89
PID 1236 wrote to memory of 4168	1236	wscript.exe	92
PID 1236 wrote to memory of 4168	1236	wscript.exe	92
PID 4168 wrote to memory of 1480	4168	WScript.exe	95
PID 4168 wrote to memory of 1480	4168	WScript.exe	95
PID 4168 wrote to memory of 1480	4168	WScript.exe	95

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Tempwinlogon.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Tempwinlogon.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\ORDER-230733AF.pdf.vbs"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1132
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\ORDER-230733AF.pdf.vbs"
  2⤵
  - Blocklisted process makes network request
  - Checks computer location settings
  - Drops startup file
  - Adds Run key to start application
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1236
- - C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\keylogger.vbs"
    3⤵
    - Checks computer location settings
    - Suspicious use of WriteProcessMemory
    PID:4168
  - - C:\Users\Admin\AppData\Local\Tempwinlogon.exe
      "C:\Users\Admin\AppData\Local\Tempwinlogon.exe"
      4⤵
      Executes dropped EXE
      Accesses Microsoft Outlook profiles
      Adds Run key to start application
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      outlook_office_path
      outlook_win_path
      PID:1480

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

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

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\Windows\INetCache\IE\SUUB7YB2\json[1].json

Filesize
323B

MD5
149c2823b7eadbfb0a82388a2ab9494f

SHA1
415fe979ce5fd0064d2557a48745a3ed1a3fbf9c

SHA256
06fa5d4e7fbfb1efdc19baa034601a894b21cf729785732853ced4bb40aca869

SHA512
f8fb6b7c93c4ab37f6e250ba8ac5c82f6e17fe52156cab81d34e91107d1da716b744bfe02ee0306497a3876d5352af789a1e66dab10e11e22065bac3050475fe

Download Submit
C:\Users\Admin\AppData\Local\Tempwinlogon.exe

Filesize
168KB

MD5
d1f85ec72f11699fed66783d175760e5

SHA1
08b642efb0b1f483f955156c2dc890e90e867cf5

SHA256
3e9ee225b6d213f8e5e6ab0b6d14f85daf0fc5d3e47942277997fff940b5acb7

SHA512
8209e250bff8e06123b5446ea9a0321fbf18a93897937b01bca8930036f07f67c703f26828152752b50a9b87a1cd6eea6d50dbd19e3f34d17ffd750157f36f97

Download Submit
C:\Users\Admin\AppData\Local\Tempwinlogon.exe

Filesize
168KB

MD5
d1f85ec72f11699fed66783d175760e5

SHA1
08b642efb0b1f483f955156c2dc890e90e867cf5

SHA256
3e9ee225b6d213f8e5e6ab0b6d14f85daf0fc5d3e47942277997fff940b5acb7

SHA512
8209e250bff8e06123b5446ea9a0321fbf18a93897937b01bca8930036f07f67c703f26828152752b50a9b87a1cd6eea6d50dbd19e3f34d17ffd750157f36f97

Download Submit
C:\Users\Admin\AppData\Local\Tempwinlogon.exe

Filesize
168KB

MD5
d1f85ec72f11699fed66783d175760e5

SHA1
08b642efb0b1f483f955156c2dc890e90e867cf5

SHA256
3e9ee225b6d213f8e5e6ab0b6d14f85daf0fc5d3e47942277997fff940b5acb7

SHA512
8209e250bff8e06123b5446ea9a0321fbf18a93897937b01bca8930036f07f67c703f26828152752b50a9b87a1cd6eea6d50dbd19e3f34d17ffd750157f36f97

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ORDER-230733AF.pdf.vbs

Filesize
3.3MB

MD5
535074e18bb8158e02c210a49b608d27

SHA1
773c9512cb8e3629d90abbb2c61bab322032511d

SHA256
17d541ebec88f36a380096bc34ab5e358a75a02395f14ce35b067304d94260f9

SHA512
43e1afa8d1e08fb7b12ebf6edb075ea5ce0df662e890b57fe5b95d831fbb0c69063c7c44055cdfce627c5a3aecee32f5beeeb443af66bbdc31f7551b34bda966

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ORDER-230733AF.pdf.vbs

Filesize
3.3MB

MD5
535074e18bb8158e02c210a49b608d27

SHA1
773c9512cb8e3629d90abbb2c61bab322032511d

SHA256
17d541ebec88f36a380096bc34ab5e358a75a02395f14ce35b067304d94260f9

SHA512
43e1afa8d1e08fb7b12ebf6edb075ea5ce0df662e890b57fe5b95d831fbb0c69063c7c44055cdfce627c5a3aecee32f5beeeb443af66bbdc31f7551b34bda966

Download Submit
C:\Users\Admin\AppData\Roaming\ORDER-230733AF.pdf.vbs

Filesize
3.3MB

MD5
535074e18bb8158e02c210a49b608d27

SHA1
773c9512cb8e3629d90abbb2c61bab322032511d

SHA256
17d541ebec88f36a380096bc34ab5e358a75a02395f14ce35b067304d94260f9

SHA512
43e1afa8d1e08fb7b12ebf6edb075ea5ce0df662e890b57fe5b95d831fbb0c69063c7c44055cdfce627c5a3aecee32f5beeeb443af66bbdc31f7551b34bda966

Download Submit
C:\Users\Admin\AppData\Roaming\keylogger.vbs

Filesize
336KB

MD5
eb6cbe2f11642772cf11896551a03673

SHA1
a3d196c4ec0eb4f563e38e0d9d9b4f9dbd738adf

SHA256
3bd943ecdb221e050c19ceda7dcf479fb70554e81630426dca7d7962770eadaa

SHA512
d488f65ad29300141da45d655af80546217083f616746843de2477b053720afc212a8994c1705e7a27dc26d49bd4962a2761a46a8f667753aaea47da27bf46de

Download Submit
memory/1480-159-0x0000000004C40000-0x0000000004CA6000-memory.dmp

Filesize
408KB

Download
memory/1480-158-0x0000000004CE0000-0x0000000004CF0000-memory.dmp

Filesize
64KB

Download
memory/1480-157-0x0000000005360000-0x0000000005904000-memory.dmp

Filesize
5.6MB

Download
memory/1480-156-0x0000000000250000-0x0000000000280000-memory.dmp

Filesize
192KB

Download
memory/1480-164-0x0000000005B60000-0x0000000005BB0000-memory.dmp

Filesize
320KB

Download
memory/1480-165-0x0000000005D80000-0x0000000005F42000-memory.dmp

Filesize
1.8MB

Download
memory/1480-175-0x0000000005C50000-0x0000000005CEC000-memory.dmp

Filesize
624KB

Download
memory/1480-176-0x0000000006330000-0x00000000063C2000-memory.dmp

Filesize
584KB

Download
memory/1480-177-0x00000000062F0000-0x00000000062FA000-memory.dmp

Filesize
40KB

Download
memory/1480-180-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/1480-181-0x0000000004CE0000-0x0000000004CF0000-memory.dmp

Filesize
64KB

Download
memory/1480-155-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download