agenttesla | 9bcc5591013f066f47701388e95202aa53483c1b73321eecedafd30de2eb381e

General

Target

1.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
2564	powershell.exe
2576	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 2956 set thread context of 2208	2956	1.scr	36

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	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1.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

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
2616	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2208	vbc.exe
2208	vbc.exe
2564	powershell.exe
2576	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2208	vbc.exe
Token: SeDebugPrivilege	2576	powershell.exe
Token: SeDebugPrivilege	2564	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2956 wrote to memory of 2564	2956	1.scr	30
PID 2956 wrote to memory of 2564	2956	1.scr	30
PID 2956 wrote to memory of 2564	2956	1.scr	30
PID 2956 wrote to memory of 2564	2956	1.scr	30
PID 2956 wrote to memory of 2576	2956	1.scr	32
PID 2956 wrote to memory of 2576	2956	1.scr	32
PID 2956 wrote to memory of 2576	2956	1.scr	32
PID 2956 wrote to memory of 2576	2956	1.scr	32
PID 2956 wrote to memory of 2616	2956	1.scr	33
PID 2956 wrote to memory of 2616	2956	1.scr	33
PID 2956 wrote to memory of 2616	2956	1.scr	33
PID 2956 wrote to memory of 2616	2956	1.scr	33
PID 2956 wrote to memory of 2208	2956	1.scr	36
PID 2956 wrote to memory of 2208	2956	1.scr	36
PID 2956 wrote to memory of 2208	2956	1.scr	36
PID 2956 wrote to memory of 2208	2956	1.scr	36
PID 2956 wrote to memory of 2208	2956	1.scr	36
PID 2956 wrote to memory of 2208	2956	1.scr	36
PID 2956 wrote to memory of 2208	2956	1.scr	36
PID 2956 wrote to memory of 2208	2956	1.scr	36
PID 2956 wrote to memory of 2208	2956	1.scr	36

C:\Users\Admin\AppData\Local\Temp\1.scr
"C:\Users\Admin\AppData\Local\Temp\1.scr" /S
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2956
- 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\1.scr"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2564
- 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:2576
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OsYPcQX" /XML "C:\Users\Admin\AppData\Local\Temp\tmp536D.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2616
- 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:2208

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\tmp536D.tmp

Filesize
1KB

MD5
92578bc024e482ad1967b14c0995e67f

SHA1
f2a729dcf33a91baea6d37db22b4112da4ed27df

SHA256
86184d3414bfc60d60ec91e2442621ad9e8111333775b3ff09182281915e64da

SHA512
fd90d87ee312e6070382b67d1b22b3b92d4ffa3bdc52222e6d7096488442b1a417a477c8baf78faef594e9c1f51f18f5a23959f418c37bb09a6e78d1c77f2b0c

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
121c42cbf3c9d595a07b0606f25f975f

SHA1
c5d58f975d631dbf88252630c09866afdc2cb91a

SHA256
fd78c631a0a513d0caa927e1d51214a40900c296409cc0c67da299ec079e8b39

SHA512
1bb9fa643d3fbf8808eb92aff202ca63c00e9c1a974e5cc89026d2ff054889526268556fb77514ab983e93b077ddd366c1a8f16154be506c3b202103cc6595c0

Download Submit
memory/2208-29-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2208-28-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2208-25-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2208-27-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2208-21-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2208-23-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2208-32-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2208-19-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2956-6-0x0000000000450000-0x00000000004D4000-memory.dmp

Filesize
528KB

Download
memory/2956-1-0x0000000000ED0000-0x0000000000F88000-memory.dmp

Filesize
736KB

Download
memory/2956-0-0x00000000742EE000-0x00000000742EF000-memory.dmp

Filesize
4KB

Download
memory/2956-2-0x00000000742E0000-0x00000000749CE000-memory.dmp

Filesize
6.9MB

Download
memory/2956-3-0x0000000000650000-0x000000000066E000-memory.dmp

Filesize
120KB

Download
memory/2956-5-0x00000000742E0000-0x00000000749CE000-memory.dmp

Filesize
6.9MB

Download
memory/2956-4-0x00000000742EE000-0x00000000742EF000-memory.dmp

Filesize
4KB

Download
memory/2956-31-0x00000000742E0000-0x00000000749CE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads