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

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 1984 set thread context of 1736 1984 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

1340 schtasks.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

documents.exeRegSvcs.exepowershell.exe

pid process

1984 documents.exe
1984 documents.exe
1984 documents.exe
1736 RegSvcs.exe
1736 RegSvcs.exe
1944 powershell.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

documents.exeRegSvcs.exepowershell.exe

description pid process

Token: SeDebugPrivilege 1984 documents.exe
Token: SeDebugPrivilege 1736 RegSvcs.exe
Token: SeDebugPrivilege 1944 powershell.exe

description	pid	process	target process
PID 1984 set thread context of 1736	1984	documents.exe	RegSvcs.exe

pid	process
1340	schtasks.exe

pid	process
1984	documents.exe
1984	documents.exe
1984	documents.exe
1736	RegSvcs.exe
1736	RegSvcs.exe
1944	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1984	documents.exe
Token: SeDebugPrivilege	1736	RegSvcs.exe
Token: SeDebugPrivilege	1944	powershell.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

documents.exe

description	pid	process	target process
PID 1984 wrote to memory of 1944	1984	documents.exe	powershell.exe
PID 1984 wrote to memory of 1944	1984	documents.exe	powershell.exe
PID 1984 wrote to memory of 1944	1984	documents.exe	powershell.exe
PID 1984 wrote to memory of 1944	1984	documents.exe	powershell.exe
PID 1984 wrote to memory of 1340	1984	documents.exe	schtasks.exe
PID 1984 wrote to memory of 1340	1984	documents.exe	schtasks.exe
PID 1984 wrote to memory of 1340	1984	documents.exe	schtasks.exe
PID 1984 wrote to memory of 1340	1984	documents.exe	schtasks.exe
PID 1984 wrote to memory of 1736	1984	documents.exe	RegSvcs.exe
PID 1984 wrote to memory of 1736	1984	documents.exe	RegSvcs.exe
PID 1984 wrote to memory of 1736	1984	documents.exe	RegSvcs.exe
PID 1984 wrote to memory of 1736	1984	documents.exe	RegSvcs.exe
PID 1984 wrote to memory of 1736	1984	documents.exe	RegSvcs.exe
PID 1984 wrote to memory of 1736	1984	documents.exe	RegSvcs.exe
PID 1984 wrote to memory of 1736	1984	documents.exe	RegSvcs.exe
PID 1984 wrote to memory of 1736	1984	documents.exe	RegSvcs.exe
PID 1984 wrote to memory of 1736	1984	documents.exe	RegSvcs.exe
PID 1984 wrote to memory of 1736	1984	documents.exe	RegSvcs.exe
PID 1984 wrote to memory of 1736	1984	documents.exe	RegSvcs.exe
PID 1984 wrote to memory of 1736	1984	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:1984

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:1944

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BJmpFHZrxap" /XML "C:\Users\Admin\AppData\Local\Temp\tmp41C2.tmp"
2⤵
- Creates scheduled task(s)
PID:1340

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:1736

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp41C2.tmp
Filesize
1KB

MD5
dbd1c4843de18f0560b11268cd361f2f

SHA1
47962018a1d3165f62f3fd6b3f94f774d619a424

SHA256
5f447a9e052fa0ff8aea14cb502d548b2f273857f23937f735b060975af1c077

SHA512
50adc1f7b3f3e3e81069f12ae87464fe9b4c664646804b3bb30f73992ada69e42b19c2769e84606f854a20fb4d814a646a7f89a07a707c6a93c73f7cb9b6da9a

Download Submit
memory/1340-59-0x0000000000000000-mapping.dmp

Download
memory/1736-65-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1736-74-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1736-72-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1736-69-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1736-70-0x0000000000435CEE-mapping.dmp

Download
memory/1736-68-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1736-67-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1736-64-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1944-58-0x0000000000000000-mapping.dmp

Download
memory/1944-76-0x000000006F100000-0x000000006F6AB000-memory.dmp

Filesize
5.7MB

Download
memory/1984-63-0x00000000049F0000-0x0000000004A2C000-memory.dmp

Filesize
240KB

Download
memory/1984-62-0x0000000004380000-0x0000000004386000-memory.dmp

Filesize
24KB

Download
memory/1984-54-0x0000000000110000-0x00000000001DA000-memory.dmp

Filesize
808KB

Download
memory/1984-57-0x0000000007190000-0x0000000007228000-memory.dmp

Filesize
608KB

Download
memory/1984-56-0x0000000000360000-0x000000000036E000-memory.dmp

Filesize
56KB

Download
memory/1984-55-0x00000000756E1000-0x00000000756E3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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