agenttesla | d05671abb7e430ab9567881b11ff4dbfab4d9675e5ecb8128608d1d147b5c073

General

Target

ORDER.docs.exe
Size

458KB
MD5

0a3333ff7bcb5dd86f29a640b400e2e8
SHA1

49bb20e7fe343cd4ab8f5048b97277230082004f
SHA256

9a1c9a14cefe34731b24b163dced4eb630136df8eeee1fc69babc26db5b5eb35
SHA512

9c7d1e2ec923e722222c446151d9240a576e1bb70174a0960c06fff81657af685288880ad78713cf47cff742adbd8fd36fc7a9ba825d1fc7b8a9dd2aba79e485

Score

10^/10

agenttesla collection evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.pro-powersourcing.com
Port:
587
Username:
[email protected]
Password:
china1977

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

AgentTesla Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4856-138-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

Disables Task Manager via registry modification
evasion
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:

ORDER.docs.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation	ORDER.docs.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\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-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CpSnJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CpSnJ\\CpSnJ.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

ORDER.docs.exe

description pid process target process

PID 2364 set thread context of 4856 2364 ORDER.docs.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

1920 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

1204 REG.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegSvcs.exe

pid process

4856 RegSvcs.exe
4856 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 4856 RegSvcs.exe

description	pid	process	target process
PID 2364 set thread context of 4856	2364	ORDER.docs.exe	RegSvcs.exe

pid	process
1920	schtasks.exe

pid	process
1204	REG.exe

pid	process
4856	RegSvcs.exe
4856	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	4856	RegSvcs.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

ORDER.docs.exeRegSvcs.exe

description	pid	process	target process
PID 2364 wrote to memory of 1920	2364	ORDER.docs.exe	schtasks.exe
PID 2364 wrote to memory of 1920	2364	ORDER.docs.exe	schtasks.exe
PID 2364 wrote to memory of 1920	2364	ORDER.docs.exe	schtasks.exe
PID 2364 wrote to memory of 4856	2364	ORDER.docs.exe	RegSvcs.exe
PID 2364 wrote to memory of 4856	2364	ORDER.docs.exe	RegSvcs.exe
PID 2364 wrote to memory of 4856	2364	ORDER.docs.exe	RegSvcs.exe
PID 2364 wrote to memory of 4856	2364	ORDER.docs.exe	RegSvcs.exe
PID 2364 wrote to memory of 4856	2364	ORDER.docs.exe	RegSvcs.exe
PID 2364 wrote to memory of 4856	2364	ORDER.docs.exe	RegSvcs.exe
PID 2364 wrote to memory of 4856	2364	ORDER.docs.exe	RegSvcs.exe
PID 2364 wrote to memory of 4856	2364	ORDER.docs.exe	RegSvcs.exe
PID 4856 wrote to memory of 1204	4856	RegSvcs.exe	REG.exe
PID 4856 wrote to memory of 1204	4856	RegSvcs.exe	REG.exe
PID 4856 wrote to memory of 1204	4856	RegSvcs.exe	REG.exe
PID 4856 wrote to memory of 4316	4856	RegSvcs.exe	netsh.exe
PID 4856 wrote to memory of 4316	4856	RegSvcs.exe	netsh.exe
PID 4856 wrote to memory of 4316	4856	RegSvcs.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\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-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\ORDER.docs.exe
"C:\Users\Admin\AppData\Local\Temp\ORDER.docs.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2364

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\iKLBzY" /XML "C:\Users\Admin\AppData\Local\Temp\tmp37A5.tmp"
2⤵
- Creates scheduled task(s)
PID:1920

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:4856

C:\Windows\SysWOW64\REG.exe
REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
3⤵
- Modifies registry key
PID:1204

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:4316

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

2

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\tmp37A5.tmp
Filesize
1KB

MD5
4ebe7daa363bc719e6b26fb4c55205b4

SHA1
3779b5eacdd05fed139871b524d42a8a18b62ae2

SHA256
1800154cf7913fe79d37ad2d073a2bb6fc68e1c8793c775fab23ba4b0884ca8c

SHA512
e8c164fb349884c7c496437ca60223c11b04b9a77860b0405d07b55ba207cc8812283723b3faa39bce87f4ab9b3d9d5dcf364cf35ae123597b92f55848363064

Download Submit
memory/1204-140-0x0000000000000000-mapping.dmp

Download
memory/1920-135-0x0000000000000000-mapping.dmp

Download
memory/2364-130-0x0000000000150000-0x00000000001C8000-memory.dmp

Filesize
480KB

Download
memory/2364-131-0x0000000005090000-0x0000000005634000-memory.dmp

Filesize
5.6MB

Download
memory/2364-132-0x0000000004B80000-0x0000000004C12000-memory.dmp

Filesize
584KB

Download
memory/2364-133-0x0000000004C30000-0x0000000004C3A000-memory.dmp

Filesize
40KB

Download
memory/2364-134-0x00000000085D0000-0x000000000866C000-memory.dmp

Filesize
624KB

Download
memory/4316-141-0x0000000000000000-mapping.dmp

Download
memory/4856-137-0x0000000000000000-mapping.dmp

Download
memory/4856-138-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/4856-139-0x0000000005B80000-0x0000000005BE6000-memory.dmp

Filesize
408KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads