agenttesla | 67d91c5221480de0bacdc3dd366e4712a1e0a76ebcbfeb02830a139b85f4f522

General

Target

FINAL SHIPPING DOCS.exe
Size

711KB
MD5

7e55d24c0f8c1eede0c92de6eaf638f2
SHA1

4ca3308afd73d550567395fbb10e1f9a5400ba5b
SHA256

606d39731ffeb838a7e31286cf75dba0c3ac101984e9c95cbeafd284d5e25671
SHA512

3a8136603025b2bbb3bfe13dbcec068196db19fa3f4353d3af9de19f76f471324137737aceb3b6a1111f525176e587d7f0d81b998b44ad31dbf848fc0de3936d

Score

10^/10

agenttesla collection evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.el-sever.com
Port:
587
Username:
[email protected]
Password:
admin123

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
UAC bypass 3 TTPs
evasion trojan

Bypass User Account Control
T1088

Disabling Security Tools
T1089

Modify Registry
T1112

AgentTesla Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/32-136-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

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:

FINAL SHIPPING DOCS.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation	FINAL SHIPPING 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\CJzRAE = "C:\\Users\\Admin\\AppData\\Roaming\\CJzRAE\\CJzRAE.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

FINAL SHIPPING DOCS.exe

description pid process target process

PID 4412 set thread context of 32 4412 FINAL SHIPPING 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

2652 schtasks.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

FINAL SHIPPING DOCS.exeRegSvcs.exe

pid process

4412 FINAL SHIPPING DOCS.exe
4412 FINAL SHIPPING DOCS.exe
4412 FINAL SHIPPING DOCS.exe
4412 FINAL SHIPPING DOCS.exe
32 RegSvcs.exe
32 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

FINAL SHIPPING DOCS.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 4412 FINAL SHIPPING DOCS.exe
Token: SeDebugPrivilege 32 RegSvcs.exe

description	pid	process	target process
PID 4412 set thread context of 32	4412	FINAL SHIPPING DOCS.exe	RegSvcs.exe

pid	process
2652	schtasks.exe

pid	process
4412	FINAL SHIPPING DOCS.exe
4412	FINAL SHIPPING DOCS.exe
4412	FINAL SHIPPING DOCS.exe
4412	FINAL SHIPPING DOCS.exe
32	RegSvcs.exe
32	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	4412	FINAL SHIPPING DOCS.exe
Token: SeDebugPrivilege	32	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

FINAL SHIPPING DOCS.exe

description	pid	process	target process
PID 4412 wrote to memory of 2652	4412	FINAL SHIPPING DOCS.exe	schtasks.exe
PID 4412 wrote to memory of 2652	4412	FINAL SHIPPING DOCS.exe	schtasks.exe
PID 4412 wrote to memory of 2652	4412	FINAL SHIPPING DOCS.exe	schtasks.exe
PID 4412 wrote to memory of 32	4412	FINAL SHIPPING DOCS.exe	RegSvcs.exe
PID 4412 wrote to memory of 32	4412	FINAL SHIPPING DOCS.exe	RegSvcs.exe
PID 4412 wrote to memory of 32	4412	FINAL SHIPPING DOCS.exe	RegSvcs.exe
PID 4412 wrote to memory of 32	4412	FINAL SHIPPING DOCS.exe	RegSvcs.exe
PID 4412 wrote to memory of 32	4412	FINAL SHIPPING DOCS.exe	RegSvcs.exe
PID 4412 wrote to memory of 32	4412	FINAL SHIPPING DOCS.exe	RegSvcs.exe
PID 4412 wrote to memory of 32	4412	FINAL SHIPPING DOCS.exe	RegSvcs.exe
PID 4412 wrote to memory of 32	4412	FINAL SHIPPING DOCS.exe	RegSvcs.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\FINAL SHIPPING DOCS.exe
"C:\Users\Admin\AppData\Local\Temp\FINAL SHIPPING DOCS.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4412

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\&startupname&" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE2EE.tmp"
2⤵
- Creates scheduled task(s)
PID:2652

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
- outlook_office_path
- outlook_win_path
PID:32

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Bypass User Account Control

Scheduled Task

Defense Evasion

Bypass User Account Control

1

T1088

Disabling Security Tools

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpE2EE.tmp

Filesize
1KB

MD5
4aa7d4126cf14e812f5bb881ec9442d0

SHA1
753f1873b92987a4d9d47d14555b0022ee25431b

SHA256
5864ffbfd512ba8a57ef045a45be0bdbd76e0f49aae6425959a9154c453cd9c6

SHA512
014a3a18e8e1667c1324658c0a7a3f7b83283d9a50c2fd47c92ad420df152c8e93b6517be2d22cc5bea741edffea202a899edc95ef43f9ec2ef940f34a29c3b6

Download Submit
memory/32-135-0x0000000000000000-mapping.dmp

Download
memory/32-136-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/32-137-0x0000000005980000-0x0000000005F24000-memory.dmp

Filesize
5.6MB

Download
memory/32-138-0x0000000005910000-0x0000000005976000-memory.dmp

Filesize
408KB

Download
memory/32-139-0x0000000006760000-0x00000000067B0000-memory.dmp

Filesize
320KB

Download
memory/32-140-0x0000000006690000-0x000000000669A000-memory.dmp

Filesize
40KB

Download
memory/2652-133-0x0000000000000000-mapping.dmp

Download
memory/4412-130-0x0000000000480000-0x0000000000538000-memory.dmp

Filesize
736KB

Download
memory/4412-131-0x0000000004E80000-0x0000000004F1C000-memory.dmp

Filesize
624KB

Download
memory/4412-132-0x00000000050A0000-0x0000000005132000-memory.dmp

Filesize
584KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads