agenttesla | 1293fa7e351537567377346080bd7307544d22c844faed1a26ba7bd9ed2bddd3

General

Target

1293fa7e351537567377346080bd7307544d22c844faed1a26ba7bd9ed2bddd3.vbs
Size

17KB
MD5

fb8b70046cdbe6cd512b2484111f2281
SHA1

f905a597e151ba220f17c38bd7d3e27e3c6ac33a
SHA256

1293fa7e351537567377346080bd7307544d22c844faed1a26ba7bd9ed2bddd3
SHA512

000f740e3106e549c771ac59d3dbfbeba488ca383422bbf6ebecc04d33b5cb7292b7bb2a221ac8b820fa7a4ea5711531a73cb77d74f5f945225c66f051852f0f
SSDEEP

192:bdmMEe+s86mzYPAJtFdgSWZYGYfqPdA47PjLScSweS8qOsf1Ooctd:bZEe+36HCtFdu5Yfad7TjLSNLS8PJXtd

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
2	3912	WScript.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\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
25	api.ipify.org
26	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 2772 set thread context of 1948	2772	powershell.exe	109

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 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
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	wermgr.exe

Enumerates system info in registry 2 TTPs 4 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	wermgr.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000_Classes\Local Settings	WScript.exe

Script User-Agent 1 IoCs

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

description	flow	ioc
HTTP User-Agent header	2	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4728	vlc.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2772	powershell.exe
2772	powershell.exe
4428	powershell.exe
4428	powershell.exe
2772	powershell.exe
2772	powershell.exe
1948	MSBuild.exe
1948	MSBuild.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4728	vlc.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2772	powershell.exe
Token: SeDebugPrivilege	4428	powershell.exe
Token: SeDebugPrivilege	1948	MSBuild.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4728	vlc.exe
4728	vlc.exe
4728	vlc.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
4728	vlc.exe
4728	vlc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4728	vlc.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4556 wrote to memory of 3912	4556	WScript.exe	84
PID 4556 wrote to memory of 3912	4556	WScript.exe	84
PID 808 wrote to memory of 2772	808	WScript.exe	89
PID 808 wrote to memory of 2772	808	WScript.exe	89
PID 808 wrote to memory of 4428	808	WScript.exe	107
PID 808 wrote to memory of 4428	808	WScript.exe	107
PID 2772 wrote to memory of 1948	2772	powershell.exe	109
PID 2772 wrote to memory of 1948	2772	powershell.exe	109
PID 2772 wrote to memory of 1948	2772	powershell.exe	109
PID 2772 wrote to memory of 1948	2772	powershell.exe	109
PID 2772 wrote to memory of 1948	2772	powershell.exe	109
PID 2772 wrote to memory of 1948	2772	powershell.exe	109
PID 2772 wrote to memory of 1948	2772	powershell.exe	109
PID 2772 wrote to memory of 1948	2772	powershell.exe	109
PID 4428 wrote to memory of 1480	4428	powershell.exe	110
PID 4428 wrote to memory of 1480	4428	powershell.exe	110
PID 2772 wrote to memory of 5088	2772	powershell.exe	111
PID 2772 wrote to memory of 5088	2772	powershell.exe	111

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\1293fa7e351537567377346080bd7307544d22c844faed1a26ba7bd9ed2bddd3.vbs"
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4556
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\ProgramData\out.vbe"
  2⤵
  - Blocklisted process makes network request
  PID:3912

C:\Windows\System32\WScript.exe
C:\Windows\System32\WScript.exe "C:\Users\Admin\AppData\Roaming\LwgRLIJpUfBrKyf.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:808
- 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:2772
- - 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:1948
- - C:\Windows\system32\wermgr.exe
    "C:\Windows\system32\wermgr.exe" "-outproc" "0" "2772" "2744" "2700" "2748" "0" "0" "2752" "0" "0" "0" "0" "0"
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    PID:5088
- 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:4428
- - C:\Windows\system32\wermgr.exe
    "C:\Windows\system32\wermgr.exe" "-outproc" "0" "4428" "2744" "2672" "2748" "0" "0" "2752" "0" "0" "0" "0" "0"
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    PID:1480

C:\Program Files\VideoLAN\VLC\vlc.exe
"C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\Desktop\SkipConvertTo.MOD"
1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:4728

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:\ProgramData\out.vbe

Filesize
8KB

MD5
4b6a027e03376fb397f315fcc5aeb1c9

SHA1
7b91dfac56a93ff17a4fabd9e37af57a449ad42e

SHA256
6e90379e08e9d003101a019113fd890bdeda9a678234f1c044cfcde942d0d70b

SHA512
1bfc6d1ae1695fa8100e270c466442219fa8d3169c3bd7cf0907117ea143433b4c593476b98997c7ffc689c2110d025ea92f776a4e91139c23de32ff69ce7902

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

Filesize
3KB

MD5
9461a7cfb20ff5381df28f51b80c5ef1

SHA1
c86c53fca1dcbe307dafbefbb366abf52c9f5eca

SHA256
d4af1948337d0deb725f4f2b1fe1a9b60f4519841e28748b11bfd62ccd71e028

SHA512
da1e17f67dfebb004ba93d489be504fd7af6d62709ada2581ffa77880baecdaa0015b49d36333d18216d9dc6aad7b0ea2e5bd224d8d3f65ee9b66a05fc45e304

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\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

Filesize
2KB

MD5
2b30242fe3de4d9edb43c28f08031166

SHA1
3dec76d6059bc908c3c1afe3c6512bb9b2884466

SHA256
176626b849aae53dfff8e6577e14ce326ef446cb4ef95fc7aade9b6e2444345a

SHA512
9891c05741744099c40dd66f951e963fe762e3d241a43f338bc805df81727fc0728c0f257a229f7c5a79d713832cd933488eb6740cb17e29630a53b4753b4240

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bjk1qnay.hlj.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
2KB

MD5
c3dc22211194d5c085a1301eab750798

SHA1
21e918bdc708ce06bca102bef1fa1dc898df30aa

SHA256
b77fde5200c5a291ea0576027ac96dc8bb3e72d1429a0657049258ad757a89c5

SHA512
f0fc64c8e6fcf9204dde8b8e0b717b3cc2bbe0311ae253e132916e40433b088b165f2f11eb2f8ca457283b64de926a919ecd647c5d7f97602251427886ee3207

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

Filesize
6KB

MD5
c22ca94a4ca69e60e8a2ba8521c15a74

SHA1
5b1e0bc9afea08eed42505c6bfcf0c80b77e1fee

SHA256
4572d92a82a9665fd6e2028cf77358eadecef8dccbd649bfb76419c7eaa20ab2

SHA512
0c61b45722773fabf514bbf68b5978847afdf89d45e6e8eb1daf488d64a3bacf33e8e23dce7ee9aa4f2452d9c93ff2b060101482e85a5b7b133d94bcc2c76afc

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

Filesize
6KB

MD5
137a5ace2068c39f207e5f5bfb68257e

SHA1
17cc16609b0072735db20fc2345b4f0a081ee75f

SHA256
1ff9b80698f4cf7c0581c722c1b0c1536f67e4b7bddd2f833e4e5fe30eddf70d

SHA512
0eadc8eb951fedeba55d1ab8a345aa0db30eb64280a1068170fc3788c9a138ead491864d7aa6a96e33f75c24bd98ff82262bfe866fc3e5831778629652c0e93c

Download Submit
memory/1948-98-0x0000000006060000-0x00000000060B0000-memory.dmp

Filesize
320KB

Download
memory/1948-78-0x0000000004C10000-0x0000000004C76000-memory.dmp

Filesize
408KB

Download
memory/1948-99-0x0000000006150000-0x00000000061E2000-memory.dmp

Filesize
584KB

Download
memory/1948-77-0x0000000004FF0000-0x0000000005594000-memory.dmp

Filesize
5.6MB

Download
memory/1948-100-0x00000000060D0000-0x00000000060DA000-memory.dmp

Filesize
40KB

Download
memory/1948-58-0x00000000001A0000-0x00000000001E0000-memory.dmp

Filesize
256KB

Download
memory/2772-18-0x000002167F060000-0x000002167F0D6000-memory.dmp

Filesize
472KB

Download
memory/2772-57-0x000002167EF70000-0x000002167EF7A000-memory.dmp

Filesize
40KB

Download
memory/2772-56-0x000002167EF60000-0x000002167EF68000-memory.dmp

Filesize
32KB

Download
memory/2772-17-0x000002167EF90000-0x000002167EFD4000-memory.dmp

Filesize
272KB

Download
memory/2772-7-0x000002167CA50000-0x000002167CA72000-memory.dmp

Filesize
136KB

Download
memory/4728-26-0x00007FF9ED140000-0x00007FF9ED151000-memory.dmp

Filesize
68KB

Download
memory/4728-23-0x00007FFA04DD0000-0x00007FFA04DE7000-memory.dmp

Filesize
92KB

Download
memory/4728-34-0x00007FF9EA930000-0x00007FF9EA941000-memory.dmp

Filesize
68KB

Download
memory/4728-33-0x00007FF9EA950000-0x00007FF9EA968000-memory.dmp

Filesize
96KB

Download
memory/4728-32-0x00007FF9EA970000-0x00007FF9EA991000-memory.dmp

Filesize
132KB

Download
memory/4728-30-0x00007FF9E8EA0000-0x00007FF9E9F50000-memory.dmp

Filesize
16.7MB

Download
memory/4728-36-0x00007FF9EA8F0000-0x00007FF9EA901000-memory.dmp

Filesize
68KB

Download
memory/4728-37-0x00007FF9EA090000-0x00007FF9EA0A1000-memory.dmp

Filesize
68KB

Download
memory/4728-31-0x00007FF9EA9A0000-0x00007FF9EA9E1000-memory.dmp

Filesize
260KB

Download
memory/4728-21-0x00007FF9EB340000-0x00007FF9EB5F6000-memory.dmp

Filesize
2.7MB

Download
memory/4728-22-0x00007FFA04FF0000-0x00007FFA05008000-memory.dmp

Filesize
96KB

Download
memory/4728-35-0x00007FF9EA910000-0x00007FF9EA921000-memory.dmp

Filesize
68KB

Download
memory/4728-24-0x00007FFA04430000-0x00007FFA04441000-memory.dmp

Filesize
68KB

Download
memory/4728-25-0x00007FF9EF700000-0x00007FF9EF717000-memory.dmp

Filesize
92KB

Download
memory/4728-29-0x00007FF9EA440000-0x00007FF9EA64B000-memory.dmp

Filesize
2.0MB

Download
memory/4728-27-0x00007FF9EB8B0000-0x00007FF9EB8CD000-memory.dmp

Filesize
116KB

Download
memory/4728-90-0x00007FF9E8EA0000-0x00007FF9E9F50000-memory.dmp

Filesize
16.7MB

Download
memory/4728-28-0x00007FF9EA650000-0x00007FF9EA661000-memory.dmp

Filesize
68KB

Download
memory/4728-19-0x00007FF6CACF0000-0x00007FF6CADE8000-memory.dmp

Filesize
992KB

Download
memory/4728-20-0x00007FF9EB8D0000-0x00007FF9EB904000-memory.dmp

Filesize
208KB

Download
memory/4728-112-0x00007FF9E8EA0000-0x00007FF9E9F50000-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