agenttesla | 7ef4c75ee4a5f3b7f2ac44323d9ba15bcd24f5d0b9e3e04dc330dc6cde421b7c

General

Target

scan_865784.scr.exe
Size

762KB
MD5

ab81060e67501bc08bd8a3f9bac5367f
SHA1

f877625633f98d1f42c50e37006f808aa61630ba
SHA256

7ef4c75ee4a5f3b7f2ac44323d9ba15bcd24f5d0b9e3e04dc330dc6cde421b7c
SHA512

61782aa2dc9663cdeb016a0b0dac91cbb4eaee8f293a1f96486539dae32c144643b299c87745657ad0682208aa5586e1ad3340e62f99f371dbdc683eb3b2717a
SSDEEP

12288:VUxAdWvsd2eUUHd8GX5b+EE203zQeDZDr0ZeVN1csr8qHv0U3TB39:VUxpa2ZUHd8GXhE20DnFf0MVNrnPx39

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
2728	powershell.exe
2640	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 1724 set thread context of 2184	1724	scan_865784.scr.exe	37

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	scan_865784.scr.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

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
1684	schtasks.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
1724	scan_865784.scr.exe
1724	scan_865784.scr.exe
1724	scan_865784.scr.exe
1724	scan_865784.scr.exe
1724	scan_865784.scr.exe
1724	scan_865784.scr.exe
1724	scan_865784.scr.exe
1724	scan_865784.scr.exe
1724	scan_865784.scr.exe
1724	scan_865784.scr.exe
1724	scan_865784.scr.exe
1724	scan_865784.scr.exe
1724	scan_865784.scr.exe
1724	scan_865784.scr.exe
1724	scan_865784.scr.exe
1724	scan_865784.scr.exe
2640	powershell.exe
2728	powershell.exe
1724	scan_865784.scr.exe
2184	vbc.exe
2184	vbc.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1724	scan_865784.scr.exe
Token: SeDebugPrivilege	2640	powershell.exe
Token: SeDebugPrivilege	2728	powershell.exe
Token: SeDebugPrivilege	2184	vbc.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1724 wrote to memory of 2728	1724	scan_865784.scr.exe	31
PID 1724 wrote to memory of 2728	1724	scan_865784.scr.exe	31
PID 1724 wrote to memory of 2728	1724	scan_865784.scr.exe	31
PID 1724 wrote to memory of 2728	1724	scan_865784.scr.exe	31
PID 1724 wrote to memory of 2640	1724	scan_865784.scr.exe	33
PID 1724 wrote to memory of 2640	1724	scan_865784.scr.exe	33
PID 1724 wrote to memory of 2640	1724	scan_865784.scr.exe	33
PID 1724 wrote to memory of 2640	1724	scan_865784.scr.exe	33
PID 1724 wrote to memory of 1684	1724	scan_865784.scr.exe	35
PID 1724 wrote to memory of 1684	1724	scan_865784.scr.exe	35
PID 1724 wrote to memory of 1684	1724	scan_865784.scr.exe	35
PID 1724 wrote to memory of 1684	1724	scan_865784.scr.exe	35
PID 1724 wrote to memory of 2184	1724	scan_865784.scr.exe	37
PID 1724 wrote to memory of 2184	1724	scan_865784.scr.exe	37
PID 1724 wrote to memory of 2184	1724	scan_865784.scr.exe	37
PID 1724 wrote to memory of 2184	1724	scan_865784.scr.exe	37
PID 1724 wrote to memory of 2184	1724	scan_865784.scr.exe	37
PID 1724 wrote to memory of 2184	1724	scan_865784.scr.exe	37
PID 1724 wrote to memory of 2184	1724	scan_865784.scr.exe	37
PID 1724 wrote to memory of 2184	1724	scan_865784.scr.exe	37
PID 1724 wrote to memory of 2184	1724	scan_865784.scr.exe	37

C:\Users\Admin\AppData\Local\Temp\scan_865784.scr.exe
"C:\Users\Admin\AppData\Local\Temp\scan_865784.scr.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1724
- 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\scan_865784.scr.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2728
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\jUTthTUyPiZyGH.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2640
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jUTthTUyPiZyGH" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2D76.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1684
- 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:2184

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp2D76.tmp

Filesize
1KB

MD5
c0b3833be63aadc7b74bc3fcfbe3375b

SHA1
9de85f3a6883c18666763f96228e16236366af73

SHA256
9a776eb414a6e1597b31b1461da6b396e05e8f00ebdea381f59fb88b583a9733

SHA512
74a7172f14e23b77924bc5e04ae49254640b415b4e36b3c7cb3f5d44dac1f77e9555c9680058d98334ecd7c4f003154230befd59b4edd519b40e30ef93e7c174

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

Filesize
7KB

MD5
a73e9ab8b125a0f5acca1a70223e5ab0

SHA1
86b940ea3b6e2fed4b6132fb99dfbd846a7a9340

SHA256
f0eeb905fbb2d398837c155c67d395e29fce26a52ec263c133cace2fc121f808

SHA512
6d37f1bef8da634aa98dc19b6ecdee1a2084d22d9a3a9ff0597cba81e0dccc9680777c824439f22be503bc28be4deb1829ed5afd73fa251021d51c3add9e90df

Download Submit
memory/1724-4-0x000000007469E000-0x000000007469F000-memory.dmp

Filesize
4KB

Download
memory/1724-32-0x0000000074690000-0x0000000074D7E000-memory.dmp

Filesize
6.9MB

Download
memory/1724-0-0x000000007469E000-0x000000007469F000-memory.dmp

Filesize
4KB

Download
memory/1724-5-0x0000000074690000-0x0000000074D7E000-memory.dmp

Filesize
6.9MB

Download
memory/1724-6-0x0000000000A90000-0x0000000000B14000-memory.dmp

Filesize
528KB

Download
memory/1724-2-0x0000000074690000-0x0000000074D7E000-memory.dmp

Filesize
6.9MB

Download
memory/1724-1-0x00000000011F0000-0x00000000012B4000-memory.dmp

Filesize
784KB

Download
memory/1724-3-0x00000000003E0000-0x00000000003FE000-memory.dmp

Filesize
120KB

Download
memory/2184-19-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2184-29-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2184-28-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2184-27-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2184-25-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2184-23-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2184-21-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2184-31-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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