agenttesla | 1a8d599848e922f122bf3ab673b87369f05eb2746d0b6b0833aefb137341d58b

General

Target

Documt736098.vbe
Size

9KB
MD5

8113e63e2ba4ac63a4621b2d9441524d
SHA1

05b433f2cfb14f9d1ec947e32a496c45a2cfa22a
SHA256

d5d3a7f4ca9b374465da72f550cc5a04e751c6a4ed18ab917a304318a9b4409b
SHA512

730e21b73e6320146c53dd9092246578a476b24efb6dbcd902e905df05039274cd2adf76293e54e1d9a3cb01e88d3800db867597bbffd979ecfea5729d4d62d9
SSDEEP

192:egjmLPbnOqiR2jutyT8vPka6hfuIMynp9KAvPxK:tjcPbg2+yT8HkaTTqp0AvQ

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
Agenttesla family
agenttesla

Blocklisted process makes network request 1 IoCs

flow	pid	Process
1	1840	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-1-5-21-2045521122-590294423-3465680274-1000\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
39	api.ipify.org
40	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 2604 set thread context of 456	2604	powershell.exe	107

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\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
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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
4080	vlc.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2604	powershell.exe
2604	powershell.exe
536	powershell.exe
536	powershell.exe
536	powershell.exe
2604	powershell.exe
2604	powershell.exe
456	MSBuild.exe
456	MSBuild.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4080	vlc.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2604	powershell.exe
Token: SeDebugPrivilege	536	powershell.exe
Token: SeDebugPrivilege	456	MSBuild.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4080	vlc.exe
4080	vlc.exe
4080	vlc.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
4080	vlc.exe
4080	vlc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4080	vlc.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 4028 wrote to memory of 2604	4028	WScript.exe	87
PID 4028 wrote to memory of 2604	4028	WScript.exe	87
PID 4028 wrote to memory of 536	4028	WScript.exe	105
PID 4028 wrote to memory of 536	4028	WScript.exe	105
PID 2604 wrote to memory of 456	2604	powershell.exe	107
PID 2604 wrote to memory of 456	2604	powershell.exe	107
PID 2604 wrote to memory of 456	2604	powershell.exe	107
PID 2604 wrote to memory of 456	2604	powershell.exe	107
PID 2604 wrote to memory of 456	2604	powershell.exe	107
PID 2604 wrote to memory of 456	2604	powershell.exe	107
PID 2604 wrote to memory of 456	2604	powershell.exe	107
PID 2604 wrote to memory of 456	2604	powershell.exe	107
PID 536 wrote to memory of 4560	536	powershell.exe	108
PID 536 wrote to memory of 4560	536	powershell.exe	108
PID 2604 wrote to memory of 2416	2604	powershell.exe	109
PID 2604 wrote to memory of 2416	2604	powershell.exe	109

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\Documt736098.vbe"
1⤵
- Blocklisted process makes network request
PID:1840

C:\Windows\System32\WScript.exe
C:\Windows\System32\WScript.exe "C:\Users\Admin\AppData\Roaming\TJtBPNdaqSLLBQi.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4028
- 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:2604
- - 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:456
- - C:\Windows\system32\wermgr.exe
    "C:\Windows\system32\wermgr.exe" "-outproc" "0" "2604" "2760" "2696" "2764" "0" "0" "2768" "0" "0" "0" "0" "0"
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    PID:2416
- 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:536
- - C:\Windows\system32\wermgr.exe
    "C:\Windows\system32\wermgr.exe" "-outproc" "0" "536" "2676" "2604" "2680" "0" "0" "2684" "0" "0" "0" "0" "0"
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    PID:4560

C:\Program Files\VideoLAN\VLC\vlc.exe
"C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\Desktop\SearchRepair.3gpp"
1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:4080

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

4

T1012

System Information Discovery

4

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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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_azaia5dv.xhc.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
f23bcee0d0ff4f44239bb7147cb50261

SHA1
d126a05edc893743ac7c63e84a8e67ed8a898240

SHA256
145df966e56c3651ca61bc854678ad267b6e64939c818d9a5ca0ac53a2541c70

SHA512
60e7e08c13994f6e7a4dfaf86e8088657b201069198b874f0c85a982c33eaeeee61c1d1d99055530a93e551c4e822e0ebb9ba54399e5fddddd9343fe10cbbf7a

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

Filesize
6KB

MD5
c3368ebff199f97615fef2766fb21cee

SHA1
02b74a353e1ed77adc69167506d44cbf08591964

SHA256
6ff54e50d38f2a8db211dfde3c020d7b257dcc836258a519981cb78cf3d4ac7f

SHA512
a6de4f3e1ed2672c0763985ed278ee11a759e25f8c402594bd7efa64a782ef9828c8144644a72cc1f92f5a24cd5aecd5da91a150c8f2344805a9e29a7a9501ba

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

Filesize
2KB

MD5
78fdde7d507d9d64ddd3808c52231caa

SHA1
cd989a13a2f92c404ddd56f9b9126e529b091f74

SHA256
0c26896cb8ca3eaa7e009abac4eff302f5a8fd312f987a2d802bdf4d67c0fd0a

SHA512
d77b609a544ee038e2673201d756b2a8f486a288ca0df10d1161f1516982405a7ed075c84b16d4f3ff1bde7a8ee21797e51df6e576e7ea0b85ae9835f534321a

Download Submit
memory/456-55-0x0000000000740000-0x0000000000780000-memory.dmp

Filesize
256KB

Download
memory/456-94-0x0000000006300000-0x0000000006350000-memory.dmp

Filesize
320KB

Download
memory/456-74-0x0000000004EE0000-0x0000000004F46000-memory.dmp

Filesize
408KB

Download
memory/456-95-0x00000000063F0000-0x0000000006482000-memory.dmp

Filesize
584KB

Download
memory/456-73-0x0000000005290000-0x0000000005834000-memory.dmp

Filesize
5.6MB

Download
memory/456-96-0x0000000006370000-0x000000000637A000-memory.dmp

Filesize
40KB

Download
memory/2604-15-0x0000025AFEE00000-0x0000025AFEE76000-memory.dmp

Filesize
472KB

Download
memory/2604-54-0x0000025A82660000-0x0000025A8266A000-memory.dmp

Filesize
40KB

Download
memory/2604-53-0x0000025A82650000-0x0000025A82658000-memory.dmp

Filesize
32KB

Download
memory/2604-14-0x0000025AE6790000-0x0000025AE67D4000-memory.dmp

Filesize
272KB

Download
memory/2604-4-0x0000025AE6700000-0x0000025AE6722000-memory.dmp

Filesize
136KB

Download
memory/4080-24-0x00007FF86CFD0000-0x00007FF86CFED000-memory.dmp

Filesize
116KB

Download
memory/4080-20-0x00007FF8825D0000-0x00007FF8825E7000-memory.dmp

Filesize
92KB

Download
memory/4080-31-0x00007FF86C430000-0x00007FF86C441000-memory.dmp

Filesize
68KB

Download
memory/4080-30-0x00007FF86C450000-0x00007FF86C468000-memory.dmp

Filesize
96KB

Download
memory/4080-29-0x00007FF86C470000-0x00007FF86C491000-memory.dmp

Filesize
132KB

Download
memory/4080-28-0x00007FF86C4A0000-0x00007FF86C4E1000-memory.dmp

Filesize
260KB

Download
memory/4080-27-0x00007FF868090000-0x00007FF869140000-memory.dmp

Filesize
16.7MB

Download
memory/4080-33-0x00007FF86C3F0000-0x00007FF86C401000-memory.dmp

Filesize
68KB

Download
memory/4080-34-0x00007FF867B80000-0x00007FF867B91000-memory.dmp

Filesize
68KB

Download
memory/4080-21-0x00007FF87F670000-0x00007FF87F681000-memory.dmp

Filesize
68KB

Download
memory/4080-19-0x00007FF883930000-0x00007FF883948000-memory.dmp

Filesize
96KB

Download
memory/4080-32-0x00007FF86C410000-0x00007FF86C421000-memory.dmp

Filesize
68KB

Download
memory/4080-18-0x00007FF869C20000-0x00007FF869ED6000-memory.dmp

Filesize
2.7MB

Download
memory/4080-26-0x00007FF86B410000-0x00007FF86B61B000-memory.dmp

Filesize
2.0MB

Download
memory/4080-23-0x00007FF86CFF0000-0x00007FF86D001000-memory.dmp

Filesize
68KB

Download
memory/4080-25-0x00007FF86C4F0000-0x00007FF86C501000-memory.dmp

Filesize
68KB

Download
memory/4080-86-0x00007FF868090000-0x00007FF869140000-memory.dmp

Filesize
16.7MB

Download
memory/4080-22-0x00007FF87EF10000-0x00007FF87EF27000-memory.dmp

Filesize
92KB

Download
memory/4080-16-0x00007FF7BAF30000-0x00007FF7BB028000-memory.dmp

Filesize
992KB

Download
memory/4080-17-0x00007FF874170000-0x00007FF8741A4000-memory.dmp

Filesize
208KB

Download
memory/4080-108-0x00007FF868090000-0x00007FF869140000-memory.dmp

Filesize
16.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads