agenttesla | eaae036429966edb9d7efcc60e7d8af4ecb0e60b668083125c64aed949753948

Resubmissions

29/10/2024, 18:10

241029-wscc9axhkn 10

09/10/2024, 10:24

241009-mfdacatdqb 10

Analysis

max time kernel
140s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09/10/2024, 10:24

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Letter Of Intent.vbe
Size

11KB
MD5

59958a367c15cc55b0b42db533eb99a8
SHA1

06d169da811d8d0abce9280ff7fd748f125e1aff
SHA256

5a793830dc868d92331342fbca7bb5338b6014944a972960c97f7d9d3f3c66ae
SHA512

bc7fbbb16f83492876f298f98160b264150ee995871f0e2d59c5c49d703bf2f21721ca1d49d293264be798ef0da2b5ebb4f423be5ddc788d34f1369db03e546e
SSDEEP

192:kn3g3XXH2AYKtbXq1qFqpSJ7sWfqH2hmqaOdC8NhuOzWNpK:uw3XXH2aA1qFkiQWfq2mqLdCpxw

Score

10^/10

agenttesla discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
162.254.34.31
Port:
587
Username:
[email protected]
Password:
M992uew1mw6Z
Email To:
[email protected]

Signatures

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

Blocklisted process makes network request 1 IoCs

flow	pid	Process
1	4212	WScript.exe

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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	WScript.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
35	api.ipify.org
34	api.ipify.org

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\%AppData%\Microsoft\Windows\Start Menu\Programs\Windows PowerShell\Windows PowerShell.lnk	powershell.exe
File opened for modification	C:\Windows\System32\%AppData%\Microsoft\Windows\Start Menu\Programs\Windows PowerShell\Windows PowerShell.lnk	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4260 set thread context of 372	4260	powershell.exe	97

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 1 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	MSBuild.exe

Checks processor information in registry 2 TTPs 6 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	wermgr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	wermgr.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	wermgr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	wermgr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	wermgr.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	wermgr.exe

Enumerates system info in registry 2 TTPs 4 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	wermgr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	wermgr.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	wermgr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	wermgr.exe

Script User-Agent 1 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	1	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3308	vlc.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
4260	powershell.exe
4260	powershell.exe
4300	powershell.exe
4300	powershell.exe
4260	powershell.exe
372	MSBuild.exe
372	MSBuild.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3308	vlc.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4260	powershell.exe
Token: SeDebugPrivilege	4300	powershell.exe
Token: SeDebugPrivilege	372	MSBuild.exe

Suspicious use of FindShellTrayWindow 10 IoCs

pid	Process
3308	vlc.exe
3308	vlc.exe
3308	vlc.exe
3308	vlc.exe
3308	vlc.exe
3308	vlc.exe
3308	vlc.exe
3308	vlc.exe
3308	vlc.exe
3308	vlc.exe

Suspicious use of SendNotifyMessage 9 IoCs

pid	Process
3308	vlc.exe
3308	vlc.exe
3308	vlc.exe
3308	vlc.exe
3308	vlc.exe
3308	vlc.exe
3308	vlc.exe
3308	vlc.exe
3308	vlc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3308	vlc.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 392 wrote to memory of 4260	392	WScript.exe	90
PID 392 wrote to memory of 4260	392	WScript.exe	90
PID 392 wrote to memory of 4300	392	WScript.exe	95
PID 392 wrote to memory of 4300	392	WScript.exe	95
PID 4260 wrote to memory of 372	4260	powershell.exe	97
PID 4260 wrote to memory of 372	4260	powershell.exe	97
PID 4260 wrote to memory of 372	4260	powershell.exe	97
PID 4260 wrote to memory of 372	4260	powershell.exe	97
PID 4260 wrote to memory of 372	4260	powershell.exe	97
PID 4260 wrote to memory of 372	4260	powershell.exe	97
PID 4260 wrote to memory of 372	4260	powershell.exe	97
PID 4260 wrote to memory of 372	4260	powershell.exe	97
PID 4260 wrote to memory of 3052	4260	powershell.exe	99
PID 4260 wrote to memory of 3052	4260	powershell.exe	99
PID 4300 wrote to memory of 856	4300	powershell.exe	98
PID 4300 wrote to memory of 856	4300	powershell.exe	98

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Letter Of Intent.vbe"
1⤵
- Blocklisted process makes network request
PID:4212

C:\Windows\System32\WScript.exe
C:\Windows\System32\WScript.exe "C:\Users\Admin\AppData\Roaming\raeljTgEWGjaGRB.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:392
- C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe"
  2⤵
  - Drops file in System32 directory
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4260
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:372
- - C:\Windows\system32\wermgr.exe
    "C:\Windows\system32\wermgr.exe" "-outproc" "0" "4260" "2752" "2692" "2756" "0" "0" "2760" "0" "0" "0" "0" "0"
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    PID:3052
- C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe"
  2⤵
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4300
- - C:\Windows\system32\wermgr.exe
    "C:\Windows\system32\wermgr.exe" "-outproc" "0" "4300" "2688" "2620" "2692" "0" "0" "2696" "0" "0" "0" "0" "0"
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    PID:856

C:\Program Files\VideoLAN\VLC\vlc.exe
"C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\Desktop\SkipSelect.ADT"
1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:3308

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
3KB

MD5
3f01549ee3e4c18244797530b588dad9

SHA1
3e87863fc06995fe4b741357c68931221d6cc0b9

SHA256
36b51e575810b6af6fc5e778ce0f228bc7797cd3224839b00829ca166fa13f9a

SHA512
73843215228865a4186ac3709bf2896f0f68da0ba3601cc20226203dd429a2ad9817b904a45f6b0456b8be68deebf3b011742a923ce4a77c0c6f3a155522ab50

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache

Filesize
53KB

MD5
a26df49623eff12a70a93f649776dab7

SHA1
efb53bd0df3ac34bd119adf8788127ad57e53803

SHA256
4ebde1c12625cb55034d47e5169f709b0bd02a8caa76b5b9854efad7f4710245

SHA512
e5f9b8645fb2a50763fcbffe877ca03e9cadf099fe2d510b74bfa9ff18d0a6563d11160e00f495eeefebde63450d0ade8d6b6a824e68bd8a59e1971dc842709c

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gvpnax0v.5bb.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
6KB

MD5
58965165e5c082bd47276cdd476ee21f

SHA1
e461261d00a67915c84ad8c80ffd2d23b25266b1

SHA256
cd0372f3a2bb08e7f731423fe644ccfbd7ea615e5a7255048f576a99e1c1d45f

SHA512
648aa61962803c6d0cb2410c932f3edb2250b131771d00e361ecc0f4025590a43454313b250ecf7a12beef75de19e855b1d30058fecb9d3dfa1227bac4793047

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
6KB

MD5
8a865f1b4d5eec9c3a1faa43f3edf5f5

SHA1
c510791c456f1f82112cc777652eaa8379413fa8

SHA256
5307c399e7c127a1c49375c352c3049b9556b42d3a887c8b39a8f17eb4ec7073

SHA512
df1e707274dc76f2b358fa7fe948687a1e760980e658c06f7ecf3c86b65dc5cba1c26593c48307efb393e35ec31f92c560934129ca11bb28aea8ac612c112b80

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

Filesize
2KB

MD5
8384daa670f00cf4c9496f2d12d9b8f6

SHA1
e419e19ca81b413db0c32a571f53fcaf281dfb8f

SHA256
6393535545043090f4d6a7fb15c2bfd37eab1a1059a2af20eabb88263443d545

SHA512
36e76e832545004f0c571954cff28aba32d18b8fe27bf83e103a62454c1e585728d47526db7a63ccc5b0496f18f8770ff467137b7a958207a96a5b8df60a4838

Download Submit
memory/372-84-0x0000000006360000-0x000000000636A000-memory.dmp

Filesize
40KB

Download
memory/372-83-0x00000000063E0000-0x0000000006472000-memory.dmp

Filesize
584KB

Download
memory/372-82-0x00000000062F0000-0x0000000006340000-memory.dmp

Filesize
320KB

Download
memory/372-81-0x0000000004EF0000-0x0000000004F56000-memory.dmp

Filesize
408KB

Download
memory/372-66-0x00000000052D0000-0x0000000005874000-memory.dmp

Filesize
5.6MB

Download
memory/372-62-0x0000000000570000-0x00000000005B0000-memory.dmp

Filesize
256KB

Download
memory/3308-32-0x00007FFBCAF10000-0x00007FFBCAF51000-memory.dmp

Filesize
260KB

Download
memory/3308-31-0x00007FFBC8A40000-0x00007FFBC8C4B000-memory.dmp

Filesize
2.0MB

Download
memory/3308-25-0x00007FFBE12D0000-0x00007FFBE12E7000-memory.dmp

Filesize
92KB

Download
memory/3308-24-0x00007FFBE66A0000-0x00007FFBE66B8000-memory.dmp

Filesize
96KB

Download
memory/3308-36-0x00007FFBCAE00000-0x00007FFBCAE11000-memory.dmp

Filesize
68KB

Download
memory/3308-39-0x00007FFBC6670000-0x00007FFBC6682000-memory.dmp

Filesize
72KB

Download
memory/3308-38-0x00007FFBCADC0000-0x00007FFBCADD1000-memory.dmp

Filesize
68KB

Download
memory/3308-37-0x00007FFBCADE0000-0x00007FFBCADF1000-memory.dmp

Filesize
68KB

Download
memory/3308-35-0x00007FFBCB850000-0x00007FFBCB868000-memory.dmp

Filesize
96KB

Download
memory/3308-34-0x00007FFBCAE20000-0x00007FFBCAE41000-memory.dmp

Filesize
132KB

Download
memory/3308-23-0x00007FFBC9970000-0x00007FFBC9C26000-memory.dmp

Filesize
2.7MB

Download
memory/3308-33-0x00007FFBC7990000-0x00007FFBC8A40000-memory.dmp

Filesize
16.7MB

Download
memory/3308-27-0x00007FFBD3650000-0x00007FFBD3667000-memory.dmp

Filesize
92KB

Download
memory/3308-116-0x00007FFBC7990000-0x00007FFBC8A40000-memory.dmp

Filesize
16.7MB

Download
memory/3308-28-0x00007FFBD2E30000-0x00007FFBD2E41000-memory.dmp

Filesize
68KB

Download
memory/3308-26-0x00007FFBD3670000-0x00007FFBD3681000-memory.dmp

Filesize
68KB

Download
memory/3308-136-0x00007FFBC7990000-0x00007FFBC8A40000-memory.dmp

Filesize
16.7MB

Download
memory/3308-29-0x00007FFBD2A40000-0x00007FFBD2A5D000-memory.dmp

Filesize
116KB

Download
memory/3308-30-0x00007FFBCB870000-0x00007FFBCB881000-memory.dmp

Filesize
68KB

Download
memory/3308-21-0x00007FF67D170000-0x00007FF67D268000-memory.dmp

Filesize
992KB

Download
memory/3308-22-0x00007FFBDD070000-0x00007FFBDD0A4000-memory.dmp

Filesize
208KB

Download
memory/3308-134-0x00007FFBDD070000-0x00007FFBDD0A4000-memory.dmp

Filesize
208KB

Download
memory/3308-135-0x00007FFBC9970000-0x00007FFBC9C26000-memory.dmp

Filesize
2.7MB

Download
memory/3308-133-0x00007FF67D170000-0x00007FF67D268000-memory.dmp

Filesize
992KB

Download
memory/3308-87-0x00007FFBC9970000-0x00007FFBC9C26000-memory.dmp

Filesize
2.7MB

Download
memory/3308-97-0x00007FFBC7990000-0x00007FFBC8A40000-memory.dmp

Filesize
16.7MB

Download
memory/4260-60-0x000001F641AD0000-0x000001F641AD8000-memory.dmp

Filesize
32KB

Download
memory/4260-4-0x000001F63F560000-0x000001F63F582000-memory.dmp

Filesize
136KB

Download
memory/4260-14-0x000001F641AE0000-0x000001F641B24000-memory.dmp

Filesize
272KB

Download
memory/4260-15-0x000001F641BB0000-0x000001F641C26000-memory.dmp

Filesize
472KB

Download
memory/4260-61-0x000001F641B30000-0x000001F641B3C000-memory.dmp

Filesize
48KB

Download