agenttesla | 5cc56631849d2923294c1c5d898d9a8e7fa5865e64818fa883229c8608505e16

General

Target

5678909764.scr
Size

723KB
MD5

df30947662e982996810396f8998687c
SHA1

ab1cca67c1d71f95e516a21995d2965761bc6829
SHA256

9bcc5591013f066f47701388e95202aa53483c1b73321eecedafd30de2eb381e
SHA512

41e148f5bd8fe19754f6c676323a1b022c0e79d3be5c5de8b3fc030e2dedb46877e5ff792da2965fc8cfc701724ea914a61a80d43590e77421820d22bb484b9a
SSDEEP

12288:ZFw5wFD3n6UwXUTCBvvFfg6DUT0/PSnyUt9H+nruF39h9sAFJEyvQXDkR:ZF4K9wXKIvFfZRGyI9enr6H93bnQXW

Score

10^/10

agenttesla discovery execution keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.fosna.net
Port:
21
Username:
[email protected]
Password:
(=8fPSH$KO_!

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware 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
2944	powershell.exe
2636	powershell.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1656 set thread context of 2028	1656	5678909764.scr	35

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	5678909764.scr
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	vbc.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
2680	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2028	vbc.exe
2028	vbc.exe
2944	powershell.exe
2636	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2028	vbc.exe
Token: SeDebugPrivilege	2944	powershell.exe
Token: SeDebugPrivilege	2636	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1656 wrote to memory of 2944	1656	5678909764.scr	29
PID 1656 wrote to memory of 2944	1656	5678909764.scr	29
PID 1656 wrote to memory of 2944	1656	5678909764.scr	29
PID 1656 wrote to memory of 2944	1656	5678909764.scr	29
PID 1656 wrote to memory of 2636	1656	5678909764.scr	31
PID 1656 wrote to memory of 2636	1656	5678909764.scr	31
PID 1656 wrote to memory of 2636	1656	5678909764.scr	31
PID 1656 wrote to memory of 2636	1656	5678909764.scr	31
PID 1656 wrote to memory of 2680	1656	5678909764.scr	33
PID 1656 wrote to memory of 2680	1656	5678909764.scr	33
PID 1656 wrote to memory of 2680	1656	5678909764.scr	33
PID 1656 wrote to memory of 2680	1656	5678909764.scr	33
PID 1656 wrote to memory of 2028	1656	5678909764.scr	35
PID 1656 wrote to memory of 2028	1656	5678909764.scr	35
PID 1656 wrote to memory of 2028	1656	5678909764.scr	35
PID 1656 wrote to memory of 2028	1656	5678909764.scr	35
PID 1656 wrote to memory of 2028	1656	5678909764.scr	35
PID 1656 wrote to memory of 2028	1656	5678909764.scr	35
PID 1656 wrote to memory of 2028	1656	5678909764.scr	35
PID 1656 wrote to memory of 2028	1656	5678909764.scr	35
PID 1656 wrote to memory of 2028	1656	5678909764.scr	35

C:\Users\Admin\AppData\Local\Temp\5678909764.scr
"C:\Users\Admin\AppData\Local\Temp\5678909764.scr" /S
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1656
- 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\5678909764.scr"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2944
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\OsYPcQX.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2636
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OsYPcQX" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB5D7.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2680
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2028

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB5D7.tmp

Filesize
1KB

MD5
1ab4b0d2856963cae6bea1e2ed549b5a

SHA1
436f7a9166252e3318a856c969874a67d4299f4b

SHA256
460cc5de161f4e6cac760f9a6c9bfb8a011b747e5b0c16785552fdafd02b6227

SHA512
59368f58d9664c368309c2618ce5e83fcb3ac5457fa193718ac0b323dd462d75664356b3178b3fbb29899a1d599c679c70dd98e7c310cb21b94a6c71a4199687

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\38D8XMQJJZG8OOMASV9I.temp

Filesize
7KB

MD5
bd40a128a138b1dbd8e7e9f143d75aa1

SHA1
bc687c7fb441af8f6c8e43df9a167daaa39352b7

SHA256
f3a575d6895c50d5d5c3ddc66de8bd52687b0814a33a35d00ff645eeeb07ee45

SHA512
9da37db324324c530aaf424948bca4c0463b2e28a6d49767a61dc20b4425d5d5f524c6f6aba4ef30f95d9a520fb6b1a3ee80a3cf608848f2965679baa660f99b

Download Submit
memory/1656-4-0x000000007443E000-0x000000007443F000-memory.dmp

Filesize
4KB

Download
memory/1656-31-0x0000000074430000-0x0000000074B1E000-memory.dmp

Filesize
6.9MB

Download
memory/1656-0-0x000000007443E000-0x000000007443F000-memory.dmp

Filesize
4KB

Download
memory/1656-5-0x0000000074430000-0x0000000074B1E000-memory.dmp

Filesize
6.9MB

Download
memory/1656-6-0x0000000005B20000-0x0000000005BA4000-memory.dmp

Filesize
528KB

Download
memory/1656-2-0x0000000074430000-0x0000000074B1E000-memory.dmp

Filesize
6.9MB

Download
memory/1656-1-0x0000000001170000-0x0000000001228000-memory.dmp

Filesize
736KB

Download
memory/1656-3-0x0000000000440000-0x000000000045E000-memory.dmp

Filesize
120KB

Download
memory/2028-20-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2028-28-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2028-30-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2028-29-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2028-27-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2028-21-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2028-25-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2028-23-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads