agenttesla | 6a0cdf63baad32236d845d0027822d4e9c67ac4f9bddd9933ada09f9811dbca5

General

Target

documents.exe
Size

791KB
MD5

425d7d79e7b8a6b79890453f242f830b
SHA1

b1dbeb640fd5853906014f923bd10ab82832c717
SHA256

6a0cdf63baad32236d845d0027822d4e9c67ac4f9bddd9933ada09f9811dbca5
SHA512

51c93e7b771c09f9a1bdaaf0191598eb5a95b6cac49e2bd2ab34d613e6607dc8a6d85537494d382c85d16778298e3f25d60652542795f9158e506a4519e1ba05

Score

10^/10

agenttesla collection keylogger persistence spyware stealer suricata trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.subnet-group.com
Port:
587
Username:
[email protected]
Password:
cr0cksh1t

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.subnet-group.com
Port:
587
Username:
[email protected]
Password:
cr0cksh1t
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
suricata: ET MALWARE AgentTesla Exfil Via SMTP
suricata: ET MALWARE AgentTesla Exfil Via SMTP
suricata
Drops file in Drivers directory 1 IoCs

Processes:

RegSvcs.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	RegSvcs.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

RegSvcs.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows\CurrentVersion\Run\Tnpak = "C:\\Users\\Admin\\AppData\\Roaming\\Tnpak\\Tnpak.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

documents.exe

description pid process target process

PID 1032 set thread context of 1060 1032 documents.exe RegSvcs.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1972 schtasks.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

documents.exeRegSvcs.exepowershell.exe

pid process

1032 documents.exe
1032 documents.exe
1032 documents.exe
1060 RegSvcs.exe
1060 RegSvcs.exe
2008 powershell.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

documents.exeRegSvcs.exepowershell.exe

description pid process

Token: SeDebugPrivilege 1032 documents.exe
Token: SeDebugPrivilege 1060 RegSvcs.exe
Token: SeDebugPrivilege 2008 powershell.exe

description	pid	process	target process
PID 1032 set thread context of 1060	1032	documents.exe	RegSvcs.exe

pid	process
1972	schtasks.exe

pid	process
1032	documents.exe
1032	documents.exe
1032	documents.exe
1060	RegSvcs.exe
1060	RegSvcs.exe
2008	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1032	documents.exe
Token: SeDebugPrivilege	1060	RegSvcs.exe
Token: SeDebugPrivilege	2008	powershell.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

documents.exe

description	pid	process	target process
PID 1032 wrote to memory of 2008	1032	documents.exe	powershell.exe
PID 1032 wrote to memory of 2008	1032	documents.exe	powershell.exe
PID 1032 wrote to memory of 2008	1032	documents.exe	powershell.exe
PID 1032 wrote to memory of 2008	1032	documents.exe	powershell.exe
PID 1032 wrote to memory of 1972	1032	documents.exe	schtasks.exe
PID 1032 wrote to memory of 1972	1032	documents.exe	schtasks.exe
PID 1032 wrote to memory of 1972	1032	documents.exe	schtasks.exe
PID 1032 wrote to memory of 1972	1032	documents.exe	schtasks.exe
PID 1032 wrote to memory of 1060	1032	documents.exe	RegSvcs.exe
PID 1032 wrote to memory of 1060	1032	documents.exe	RegSvcs.exe
PID 1032 wrote to memory of 1060	1032	documents.exe	RegSvcs.exe
PID 1032 wrote to memory of 1060	1032	documents.exe	RegSvcs.exe
PID 1032 wrote to memory of 1060	1032	documents.exe	RegSvcs.exe
PID 1032 wrote to memory of 1060	1032	documents.exe	RegSvcs.exe
PID 1032 wrote to memory of 1060	1032	documents.exe	RegSvcs.exe
PID 1032 wrote to memory of 1060	1032	documents.exe	RegSvcs.exe
PID 1032 wrote to memory of 1060	1032	documents.exe	RegSvcs.exe
PID 1032 wrote to memory of 1060	1032	documents.exe	RegSvcs.exe
PID 1032 wrote to memory of 1060	1032	documents.exe	RegSvcs.exe
PID 1032 wrote to memory of 1060	1032	documents.exe	RegSvcs.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\documents.exe
"C:\Users\Admin\AppData\Local\Temp\documents.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1032

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\PnxlrYrQ.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2008

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PnxlrYrQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4912.tmp"
2⤵
- Creates scheduled task(s)
PID:1972

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1060

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp4912.tmp

Filesize
1KB

MD5
0b765b0bbcee8c2ea701ec79f2785dc2

SHA1
5d8f38c73a73189fa687381251f9d7739e54d6c3

SHA256
6decb21a92679f11a3c1f39e5bc71acedea54c5ef95439b3ef8cfe8b23d15b62

SHA512
a90a9a04a12b544042b3936e669e74a9325a55e64d176e2a0b584108f651f07b7f8b7d2a930f0e5a612d560d70feb7bb22c5dc63d751637a85c452d009fc5d0b

Download Submit
memory/1032-62-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/1032-55-0x00000000758D1000-0x00000000758D3000-memory.dmp

Filesize
8KB

Download
memory/1032-56-0x0000000000250000-0x000000000025E000-memory.dmp

Filesize
56KB

Download
memory/1032-57-0x00000000078D0000-0x0000000007966000-memory.dmp

Filesize
600KB

Download
memory/1032-54-0x0000000000C40000-0x0000000000D0A000-memory.dmp

Filesize
808KB

Download
memory/1032-63-0x00000000047C0000-0x00000000047FC000-memory.dmp

Filesize
240KB

Download
memory/1060-64-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1060-68-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1060-67-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1060-65-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1060-70-0x0000000000435CEE-mapping.dmp

Download
memory/1060-69-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1060-72-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1060-74-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1972-59-0x0000000000000000-mapping.dmp

Download
memory/2008-58-0x0000000000000000-mapping.dmp

Download
memory/2008-76-0x000000006FA30000-0x000000006FFDB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads