agenttesla | 47fb37d285424a155defa75f5788442f68228ca67cf3e07d156f10c9b621e2de

General

Target

47fb37d285424a155defa75f5788442f68228ca67cf3e07d156f10c9b621e2de.vbs
Size

17KB
MD5

a7c2edb4d802f4195a1370be0063422b
SHA1

30c32d08e7ca9dd1fe3cede09700947530c53ee2
SHA256

47fb37d285424a155defa75f5788442f68228ca67cf3e07d156f10c9b621e2de
SHA512

069ba00e62335b61550dca3c37422e054f5fb17cde5d7d8b999c2abcdbd8ea193daab3660afb2cf621ad2db43ea6c85f82cb69fe62dfe3f658d678048df5fafe
SSDEEP

384:bZEeqBbbhht0F0o9BHdJD/UgdSmqSy65TGd:bZEeqhhhtzorHdJD/UgdSmqSy65TGd

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
6	4352	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
42	api.ipify.org
43	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 3924 set thread context of 1664	3924	powershell.exe	108

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	6	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
3924	powershell.exe
3924	powershell.exe
5012	powershell.exe
5012	powershell.exe
3924	powershell.exe
1664	MSBuild.exe
1664	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3924	powershell.exe
Token: SeDebugPrivilege	5012	powershell.exe
Token: SeDebugPrivilege	1664	MSBuild.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 5112 wrote to memory of 4352	5112	WScript.exe	85
PID 5112 wrote to memory of 4352	5112	WScript.exe	85
PID 4536 wrote to memory of 3924	4536	WScript.exe	96
PID 4536 wrote to memory of 3924	4536	WScript.exe	96
PID 4536 wrote to memory of 5012	4536	WScript.exe	105
PID 4536 wrote to memory of 5012	4536	WScript.exe	105
PID 3924 wrote to memory of 1664	3924	powershell.exe	108
PID 3924 wrote to memory of 1664	3924	powershell.exe	108
PID 3924 wrote to memory of 1664	3924	powershell.exe	108
PID 3924 wrote to memory of 1664	3924	powershell.exe	108
PID 3924 wrote to memory of 1664	3924	powershell.exe	108
PID 3924 wrote to memory of 1664	3924	powershell.exe	108
PID 3924 wrote to memory of 1664	3924	powershell.exe	108
PID 3924 wrote to memory of 1664	3924	powershell.exe	108
PID 5012 wrote to memory of 2228	5012	powershell.exe	109
PID 5012 wrote to memory of 2228	5012	powershell.exe	109
PID 3924 wrote to memory of 4748	3924	powershell.exe	110
PID 3924 wrote to memory of 4748	3924	powershell.exe	110

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\47fb37d285424a155defa75f5788442f68228ca67cf3e07d156f10c9b621e2de.vbs"
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:5112
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\ProgramData\out.vbe"
  2⤵
  - Blocklisted process makes network request
  PID:4352

C:\Windows\System32\WScript.exe
C:\Windows\System32\WScript.exe "C:\Users\Admin\AppData\Roaming\qSqOPawvHoBdGel.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4536
- 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:3924
- - 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:1664
- - C:\Windows\system32\wermgr.exe
    "C:\Windows\system32\wermgr.exe" "-outproc" "0" "3924" "2360" "2180" "2344" "0" "0" "2364" "0" "0" "0" "0" "0"
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    PID:4748
- 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:5012
- - C:\Windows\system32\wermgr.exe
    "C:\Windows\system32\wermgr.exe" "-outproc" "0" "5012" "2688" "2616" "2692" "0" "0" "2696" "0" "0" "0" "0" "0"
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    PID:2228

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
1f728a1a3707688ff942828693fe5087

SHA1
b3b101a73eb95afccecd9134d59749af8172c88d

SHA256
8a9fe12c582a9899f79fa0a40befd9fd5a29fa41d4143ad6da9725c8a5aa5306

SHA512
fea26ab73e9ce1ccfa16a1df052bd049b0a9376fdd63480f596858963dbb900edb1840586c0ebce9b220340be880e12bec229d28c166d5e8bfe9afe6fc288aeb

Download Submit
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_03anhlgf.y4t.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
4c3451f09d5b3400608abaa66ee51dcf

SHA1
dbcc6ec84ec93b045852fce2ca4ed59ff0a8694a

SHA256
c365275ff8804e78ccae163de38e8468483b21204d1031c95991cf726a2ef2dc

SHA512
402fa9b4c74cc9098c7e66e54f91262cd5b134649f1ee33fd4fe5575c573e07b7242453b7d40f460c0593c8b5f39bc3bfd24f64cf3785ba9847e077bce46e5b3

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

Filesize
6KB

MD5
6026f7c1bfdf84c31bc26ffde1f80d25

SHA1
6fab3069bbb309e49ebee0eeedb7f560987d8deb

SHA256
8d3721e7cc2ce238b7fab34eb5d75a85dbc92883c4f0cb04b8f5fc236e7554db

SHA512
e0e62346ca63b461eda0b2fb1676578b738a420280ce9342621ad35e7745ce3dd5d86ffe0b31202c09e6053bd28df8411c7261050af167d75c1659bec2bed457

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

Filesize
2KB

MD5
a27ccb57ff1d5685f3b744f83ae76ceb

SHA1
be394b0554203ad342bd5b86a3f549577cdc7ea4

SHA256
dcbcc67a49fd29985c87993db391ab12dbc531a15b24cbc7149bd74adea174fc

SHA512
6fc2b6eaf3cf055206e1253654bf8542dabebab4159f0fd049e800bce4a2f9c3638ed0e754e695e079f6baed9267db72f5c41a3b5393fd521419adb1e40e3613

Download Submit
memory/1664-39-0x0000000000FB0000-0x0000000000FF0000-memory.dmp

Filesize
256KB

Download
memory/1664-57-0x0000000005EA0000-0x0000000006444000-memory.dmp

Filesize
5.6MB

Download
memory/1664-58-0x0000000005A80000-0x0000000005AE6000-memory.dmp

Filesize
408KB

Download
memory/1664-59-0x0000000006E70000-0x0000000006EC0000-memory.dmp

Filesize
320KB

Download
memory/1664-60-0x0000000006F60000-0x0000000006FF2000-memory.dmp

Filesize
584KB

Download
memory/1664-61-0x0000000006EE0000-0x0000000006EEA000-memory.dmp

Filesize
40KB

Download
memory/3924-18-0x00000210F4340000-0x00000210F43B6000-memory.dmp

Filesize
472KB

Download
memory/3924-17-0x00000210F4270000-0x00000210F42B4000-memory.dmp

Filesize
272KB

Download
memory/3924-37-0x00000210F1D20000-0x00000210F1D28000-memory.dmp

Filesize
32KB

Download
memory/3924-38-0x00000210F4240000-0x00000210F424A000-memory.dmp

Filesize
40KB

Download
memory/3924-16-0x00000210F3EB0000-0x00000210F3ED2000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads