agenttesla | fce53b44b84508ba4e7acee4d1bbf06969b4195a23df372bedc6540714a994bd

General

Target

documents.exe
Size

787KB
MD5

c2a0577aead47c20d54918758c471247
SHA1

ffc6087cc7e098e74bd5efb3f6971342d5c1f12b
SHA256

0918c0111b97f8a25e9717e9b74a96c85e9f3801e2922bb050e8024edf9adff0
SHA512

1024c14e1fe279887e80b2f4d4b4423ef943bf6355f762b3a24cd6964e2350e77a2e0c43c0478a37fe46a8253f5866e4793dfd7225066e716e6165d623b4c84a

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:
edna@subnet-group.com
Password:
cr0cksh1t

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.subnet-group.com
Port:
587
Username:
edna@subnet-group.com
Password:
cr0cksh1t
Email To:
eh746746@gmail.com

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

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

Processes:

documents.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	documents.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\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-1-5-21-2632097139-1792035885-811742494-1000\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 3704 set thread context of 5052 3704 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

3568 schtasks.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

documents.exepowershell.exeRegSvcs.exe

pid process

3704 documents.exe
3704 documents.exe
3204 powershell.exe
5052 RegSvcs.exe
5052 RegSvcs.exe
3204 powershell.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

documents.exepowershell.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 3704 documents.exe
Token: SeDebugPrivilege 3204 powershell.exe
Token: SeDebugPrivilege 5052 RegSvcs.exe

description	pid	process	target process
PID 3704 set thread context of 5052	3704	documents.exe	RegSvcs.exe

pid	process
3568	schtasks.exe

pid	process
3704	documents.exe
3704	documents.exe
3204	powershell.exe
5052	RegSvcs.exe
5052	RegSvcs.exe
3204	powershell.exe

description	pid	process
Token: SeDebugPrivilege	3704	documents.exe
Token: SeDebugPrivilege	3204	powershell.exe
Token: SeDebugPrivilege	5052	RegSvcs.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

documents.exe

description	pid	process	target process
PID 3704 wrote to memory of 3204	3704	documents.exe	powershell.exe
PID 3704 wrote to memory of 3204	3704	documents.exe	powershell.exe
PID 3704 wrote to memory of 3204	3704	documents.exe	powershell.exe
PID 3704 wrote to memory of 3568	3704	documents.exe	schtasks.exe
PID 3704 wrote to memory of 3568	3704	documents.exe	schtasks.exe
PID 3704 wrote to memory of 3568	3704	documents.exe	schtasks.exe
PID 3704 wrote to memory of 5052	3704	documents.exe	RegSvcs.exe
PID 3704 wrote to memory of 5052	3704	documents.exe	RegSvcs.exe
PID 3704 wrote to memory of 5052	3704	documents.exe	RegSvcs.exe
PID 3704 wrote to memory of 5052	3704	documents.exe	RegSvcs.exe
PID 3704 wrote to memory of 5052	3704	documents.exe	RegSvcs.exe
PID 3704 wrote to memory of 5052	3704	documents.exe	RegSvcs.exe
PID 3704 wrote to memory of 5052	3704	documents.exe	RegSvcs.exe
PID 3704 wrote to memory of 5052	3704	documents.exe	RegSvcs.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\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-1-5-21-2632097139-1792035885-811742494-1000\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⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3704

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\BJmpFHZrxap.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3204

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BJmpFHZrxap" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDDB.tmp"
2⤵
- Creates scheduled task(s)
PID:3568

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:5052

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpDDB.tmp
Filesize
1KB

MD5
10c946a0a5d67c18931e274f942f3c29

SHA1
5791ff96438e2ac58d6f0e6069e645661cf5a9d5

SHA256
9ac9786e61058a774d7323ca160dcf91beb04b0a6ff67e6f494a191919a37eda

SHA512
9b68c48208de5bb0a66c8e3949ff122995a35d03739dc1257bc508c5c62eb616168c8e54c0139ecb39319a2a22310fa3a8f49670cbe8ab488fa278d62262da21

Download Submit
memory/3204-148-0x0000000006C30000-0x0000000006C4E000-memory.dmp

Filesize
120KB

Download
memory/3204-150-0x0000000007990000-0x00000000079AA000-memory.dmp

Filesize
104KB

Download
memory/3204-144-0x0000000005850000-0x00000000058B6000-memory.dmp

Filesize
408KB

Download
memory/3204-145-0x0000000006680000-0x000000000669E000-memory.dmp

Filesize
120KB

Download
memory/3204-143-0x00000000055B0000-0x00000000055D2000-memory.dmp

Filesize
136KB

Download
memory/3204-136-0x0000000000000000-mapping.dmp

Download
memory/3204-155-0x0000000007CD0000-0x0000000007CEA000-memory.dmp

Filesize
104KB

Download
memory/3204-138-0x0000000002D90000-0x0000000002DC6000-memory.dmp

Filesize
216KB

Download
memory/3204-154-0x0000000007BC0000-0x0000000007BCE000-memory.dmp

Filesize
56KB

Download
memory/3204-141-0x0000000005970000-0x0000000005F98000-memory.dmp

Filesize
6.2MB

Download
memory/3204-152-0x0000000007C10000-0x0000000007CA6000-memory.dmp

Filesize
600KB

Download
memory/3204-151-0x0000000007A00000-0x0000000007A0A000-memory.dmp

Filesize
40KB

Download
memory/3204-156-0x0000000007CB0000-0x0000000007CB8000-memory.dmp

Filesize
32KB

Download
memory/3204-149-0x0000000007FD0000-0x000000000864A000-memory.dmp

Filesize
6.5MB

Download
memory/3204-147-0x00000000704A0000-0x00000000704EC000-memory.dmp

Filesize
304KB

Download
memory/3204-146-0x0000000007800000-0x0000000007832000-memory.dmp

Filesize
200KB

Download
memory/3568-137-0x0000000000000000-mapping.dmp

Download
memory/3704-134-0x0000000007280000-0x000000000731C000-memory.dmp

Filesize
624KB

Download
memory/3704-130-0x0000000000010000-0x00000000000DA000-memory.dmp

Filesize
808KB

Download
memory/3704-133-0x0000000006FE0000-0x0000000006FEA000-memory.dmp

Filesize
40KB

Download
memory/3704-132-0x0000000006F40000-0x0000000006FD2000-memory.dmp

Filesize
584KB

Download
memory/3704-131-0x0000000007430000-0x00000000079D4000-memory.dmp

Filesize
5.6MB

Download
memory/3704-135-0x0000000009C70000-0x0000000009CD6000-memory.dmp

Filesize
408KB

Download
memory/5052-142-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/5052-140-0x0000000000000000-mapping.dmp

Download
memory/5052-153-0x0000000006D10000-0x0000000006D60000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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