agenttesla | 887f393b62c6c4b69e81cfc772397619082d936dd38cbcbc0f54b623ef871af6

Analysis

max time kernel
118s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-01-2025 10:31

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General

Target

PO#98540-00.exe
Size

818KB
MD5

ea046995fae362aca9e45a8374b2e7d3
SHA1

220030086ea9c40d840904ee914fce760355313a
SHA256

887f393b62c6c4b69e81cfc772397619082d936dd38cbcbc0f54b623ef871af6
SHA512

fc5fc4d4ba627d5503bf162c7ea0b86379be979badf27950449ee7ae6552b14ad7b170a567feaca8b6a1c98c404e399651d1fec7e4d0330161ec436b940c5deb
SSDEEP

12288:LOfIO8DfgZCZtoym2Tm9I+M4AszKlF5+YZ4sEu9neODY72eM9lOR7rCThUa+e1+:LOkfpOFM4TKQyxetMCRvE+p

Score

10^/10

agenttesla discovery execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.starmech.net
Port:
587
Username:
[email protected]
Password:
nics123
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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2948	powershell.exe
540	powershell.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	PO#98540-00.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\BjTxJte = "C:\\Users\\Admin\\AppData\\Roaming\\BjTxJte\\BjTxJte.exe"	RegSvcs.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
21	api.ipify.org
20	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 924 set thread context of 2492	924	PO#98540-00.exe	95

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 5 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	PO#98540-00.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
3584	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
924	PO#98540-00.exe
2948	powershell.exe
540	powershell.exe
924	PO#98540-00.exe
2492	RegSvcs.exe
2492	RegSvcs.exe
2948	powershell.exe
540	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	924	PO#98540-00.exe
Token: SeDebugPrivilege	2948	powershell.exe
Token: SeDebugPrivilege	540	powershell.exe
Token: SeDebugPrivilege	2492	RegSvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2492	RegSvcs.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 924 wrote to memory of 2948	924	PO#98540-00.exe	89
PID 924 wrote to memory of 2948	924	PO#98540-00.exe	89
PID 924 wrote to memory of 2948	924	PO#98540-00.exe	89
PID 924 wrote to memory of 540	924	PO#98540-00.exe	91
PID 924 wrote to memory of 540	924	PO#98540-00.exe	91
PID 924 wrote to memory of 540	924	PO#98540-00.exe	91
PID 924 wrote to memory of 3584	924	PO#98540-00.exe	93
PID 924 wrote to memory of 3584	924	PO#98540-00.exe	93
PID 924 wrote to memory of 3584	924	PO#98540-00.exe	93
PID 924 wrote to memory of 2492	924	PO#98540-00.exe	95
PID 924 wrote to memory of 2492	924	PO#98540-00.exe	95
PID 924 wrote to memory of 2492	924	PO#98540-00.exe	95
PID 924 wrote to memory of 2492	924	PO#98540-00.exe	95
PID 924 wrote to memory of 2492	924	PO#98540-00.exe	95
PID 924 wrote to memory of 2492	924	PO#98540-00.exe	95
PID 924 wrote to memory of 2492	924	PO#98540-00.exe	95
PID 924 wrote to memory of 2492	924	PO#98540-00.exe	95

C:\Users\Admin\AppData\Local\Temp\PO#98540-00.exe
"C:\Users\Admin\AppData\Local\Temp\PO#98540-00.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:924
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\PO#98540-00.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2948
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\fxdUmOSelzT.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:540
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fxdUmOSelzT" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCA07.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3584
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2492

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
19dc6eddbfcbec766591be00244e751d

SHA1
d85aa51e19c5e3b7363a5d2530f3562711e1da69

SHA256
76e0e4dd9cf892d131996f213230d7cf5c10586962c3933284ab0e6f2630fb9c

SHA512
b28e833a6a991a84c332d1aad547be9d92df4b33dddc73d30f4c3e8e914fa78619e9a05808d3485c0405206c58f304fd0182705ee567dee7900de1e1b3f6b6dc

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_juv3eoqr.skb.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpCA07.tmp

Filesize
1KB

MD5
2a3eb8e5ee83d0b6484f909b52365754

SHA1
16375b8c99b6dc6152e1f5b4a87631c54df79ea4

SHA256
bc3d44736e75c52f5f3e22185a319227f2a9258ddd2935711e494ba57fb50dae

SHA512
8b7cca0f0add9a7b9cea16af6ab8344816b8e1ff6bac8a5fb5d7dc829ec7dfc367dc03169fbf3ea8460933f0c568449df738c57c555b01efc78a02582fe31469

Download Submit
memory/540-80-0x0000000007E90000-0x0000000007EAA000-memory.dmp

Filesize
104KB

Download
memory/540-22-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/540-72-0x0000000007A00000-0x0000000007AA3000-memory.dmp

Filesize
652KB

Download
memory/540-71-0x0000000007980000-0x000000000799E000-memory.dmp

Filesize
120KB

Download
memory/540-73-0x0000000007B50000-0x0000000007B6A000-memory.dmp

Filesize
104KB

Download
memory/540-78-0x0000000007D80000-0x0000000007D8E000-memory.dmp

Filesize
56KB

Download
memory/540-52-0x0000000070B00000-0x0000000070B4C000-memory.dmp

Filesize
304KB

Download
memory/540-79-0x0000000007D90000-0x0000000007DA4000-memory.dmp

Filesize
80KB

Download
memory/540-35-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/540-88-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/924-10-0x0000000004920000-0x00000000049A6000-memory.dmp

Filesize
536KB

Download
memory/924-6-0x00000000051E0000-0x000000000527C000-memory.dmp

Filesize
624KB

Download
memory/924-4-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/924-5-0x0000000005090000-0x000000000509A000-memory.dmp

Filesize
40KB

Download
memory/924-47-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/924-7-0x0000000007AC0000-0x0000000007AE6000-memory.dmp

Filesize
152KB

Download
memory/924-0-0x000000007443E000-0x000000007443F000-memory.dmp

Filesize
4KB

Download
memory/924-3-0x0000000004F00000-0x0000000004F92000-memory.dmp

Filesize
584KB

Download
memory/924-2-0x00000000053B0000-0x0000000005954000-memory.dmp

Filesize
5.6MB

Download
memory/924-1-0x0000000000420000-0x00000000004F2000-memory.dmp

Filesize
840KB

Download
memory/924-9-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/924-8-0x000000007443E000-0x000000007443F000-memory.dmp

Filesize
4KB

Download
memory/2492-36-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2492-91-0x0000000006A20000-0x0000000006A70000-memory.dmp

Filesize
320KB

Download
memory/2948-17-0x0000000005430000-0x0000000005A58000-memory.dmp

Filesize
6.2MB

Download
memory/2948-14-0x0000000004CF0000-0x0000000004D26000-memory.dmp

Filesize
216KB

Download
memory/2948-20-0x0000000005B50000-0x0000000005BB6000-memory.dmp

Filesize
408KB

Download
memory/2948-50-0x0000000006890000-0x00000000068C2000-memory.dmp

Filesize
200KB

Download
memory/2948-51-0x0000000070B00000-0x0000000070B4C000-memory.dmp

Filesize
304KB

Download
memory/2948-74-0x0000000007C60000-0x00000000082DA000-memory.dmp

Filesize
6.5MB

Download
memory/2948-75-0x0000000007650000-0x000000000765A000-memory.dmp

Filesize
40KB

Download
memory/2948-76-0x0000000007860000-0x00000000078F6000-memory.dmp

Filesize
600KB

Download
memory/2948-77-0x00000000077E0000-0x00000000077F1000-memory.dmp

Filesize
68KB

Download
memory/2948-21-0x0000000005C70000-0x0000000005CD6000-memory.dmp

Filesize
408KB

Download
memory/2948-19-0x0000000005400000-0x0000000005422000-memory.dmp

Filesize
136KB

Download
memory/2948-49-0x0000000006350000-0x000000000639C000-memory.dmp

Filesize
304KB

Download
memory/2948-81-0x0000000007900000-0x0000000007908000-memory.dmp

Filesize
32KB

Download
memory/2948-48-0x00000000062C0000-0x00000000062DE000-memory.dmp

Filesize
120KB

Download
memory/2948-89-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/2948-34-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/2948-24-0x0000000005CE0000-0x0000000006034000-memory.dmp

Filesize
3.3MB

Download
memory/2948-18-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/2948-16-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download