agenttesla | 0c62abe574a6b360a940fc43ecae0993eb52715bac6208ea56e2de5e1bc5892b

Analysis

max time kernel
163s
max time network
178s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
03-10-2022 10:41

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General

Target

tmp.exe
Size

563KB
MD5

227c17af92250eb0bdf0699aa960da49
SHA1

d61972c27c1c527e4045b8ae02bee2cecc1f0e1c
SHA256

0c62abe574a6b360a940fc43ecae0993eb52715bac6208ea56e2de5e1bc5892b
SHA512

2f63af39b7f4c6e262f4ce6fa41392dcc81746562f0d3f2624ec51528450a337be02739d046dd9062e0bc81a4c1bcbecee7adecdb434b119ad708aab07acf017
SSDEEP

12288:kErC2iNx04jcS2r4LRzx/T/xtznCqpTBaGNCAkQvlBhCTet:LG1/07r4fr/xt7CuUGhvhx

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

https://api.telegram.org/bot2134979594:AAFk4QkrlHlt2a-q-EhIoHZBbzxSH0QxiBI/sendDocument

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/5000-140-0x0000000000400000-0x000000000043C000-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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

tmp.exe

description pid process target process

PID 748 set thread context of 5000 748 tmp.exe RegSvcs.exe
Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

tmp.exeRegSvcs.exe

pid process

748 tmp.exe
748 tmp.exe
748 tmp.exe
748 tmp.exe
748 tmp.exe
5000 RegSvcs.exe
5000 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

tmp.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 748 tmp.exe
Token: SeDebugPrivilege 5000 RegSvcs.exe

description	pid	process	target process
PID 748 set thread context of 5000	748	tmp.exe	RegSvcs.exe

pid	process
748	tmp.exe
748	tmp.exe
748	tmp.exe
748	tmp.exe
748	tmp.exe
5000	RegSvcs.exe
5000	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	748	tmp.exe
Token: SeDebugPrivilege	5000	RegSvcs.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

tmp.exe

description	pid	process	target process
PID 748 wrote to memory of 4668	748	tmp.exe	RegSvcs.exe
PID 748 wrote to memory of 4668	748	tmp.exe	RegSvcs.exe
PID 748 wrote to memory of 4668	748	tmp.exe	RegSvcs.exe
PID 748 wrote to memory of 452	748	tmp.exe	RegSvcs.exe
PID 748 wrote to memory of 452	748	tmp.exe	RegSvcs.exe
PID 748 wrote to memory of 452	748	tmp.exe	RegSvcs.exe
PID 748 wrote to memory of 5000	748	tmp.exe	RegSvcs.exe
PID 748 wrote to memory of 5000	748	tmp.exe	RegSvcs.exe
PID 748 wrote to memory of 5000	748	tmp.exe	RegSvcs.exe
PID 748 wrote to memory of 5000	748	tmp.exe	RegSvcs.exe
PID 748 wrote to memory of 5000	748	tmp.exe	RegSvcs.exe
PID 748 wrote to memory of 5000	748	tmp.exe	RegSvcs.exe
PID 748 wrote to memory of 5000	748	tmp.exe	RegSvcs.exe
PID 748 wrote to memory of 5000	748	tmp.exe	RegSvcs.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\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-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:748

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
PID:4668

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
PID:452

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:5000

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/452-138-0x0000000000000000-mapping.dmp

Download
memory/748-132-0x0000000000DF0000-0x0000000000E82000-memory.dmp

Filesize
584KB

Download
memory/748-133-0x0000000005CD0000-0x0000000006274000-memory.dmp

Filesize
5.6MB

Download
memory/748-134-0x0000000005720000-0x00000000057B2000-memory.dmp

Filesize
584KB

Download
memory/748-135-0x00000000057C0000-0x000000000585C000-memory.dmp

Filesize
624KB

Download
memory/748-136-0x00000000033B0000-0x00000000033BA000-memory.dmp

Filesize
40KB

Download
memory/4668-137-0x0000000000000000-mapping.dmp

Download
memory/5000-139-0x0000000000000000-mapping.dmp

Download
memory/5000-140-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/5000-141-0x0000000005D50000-0x0000000005DB6000-memory.dmp

Filesize
408KB

Download
memory/5000-142-0x0000000005EC0000-0x0000000005F10000-memory.dmp

Filesize
320KB

Download