agenttesla | 3ff802e875d54b64758cc2e91844a7d1d9c87c348dfc18604db5ee6dd856cca3

Analysis

max time kernel
148s
max time network
170s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
28-11-2022 06:26

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General

Target

3ff802e875d54b64758cc2e91844a7d1d9c87c348dfc18604db5ee6dd856cca3.exe
Size

838KB
MD5

644ef0e96bb766efa2a3fe3a7dfb0d5c
SHA1

76f4bc8da9ef0130175a93d29ec7f913a904934b
SHA256

3ff802e875d54b64758cc2e91844a7d1d9c87c348dfc18604db5ee6dd856cca3
SHA512

c75591011ff6542f4ab6018ba58163f4d69ba6bcda6af68bc22c68a87b0f9f08d5d2d19da01d23c53cec30eec702ee3fc90f70e219827011caea5dbbac373af2
SSDEEP

12288:gg5VmNVT3J/0UNz5fPC6q1BQh/IObjfF7LLDEXlXY61XIOmM0uY:hLm3jJddnboDObjfxLXMVByx

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
tqzwrcdhriqzrjyb

Signatures

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

CasPol.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe

Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

93 api.ipify.org

flow	ioc
93	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

Processes:

3ff802e875d54b64758cc2e91844a7d1d9c87c348dfc18604db5ee6dd856cca3.exe

description	pid	process	target process
PID 3296 set thread context of 4708	3296	3ff802e875d54b64758cc2e91844a7d1d9c87c348dfc18604db5ee6dd856cca3.exe	CasPol.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

CasPol.exe

pid process

4708 CasPol.exe
4708 CasPol.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

CasPol.exe

description pid process

Token: SeDebugPrivilege 4708 CasPol.exe

pid	process
4708	CasPol.exe
4708	CasPol.exe

description	pid	process
Token: SeDebugPrivilege	4708	CasPol.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

3ff802e875d54b64758cc2e91844a7d1d9c87c348dfc18604db5ee6dd856cca3.exe

description	pid	process	target process
PID 3296 wrote to memory of 4708	3296	3ff802e875d54b64758cc2e91844a7d1d9c87c348dfc18604db5ee6dd856cca3.exe	CasPol.exe
PID 3296 wrote to memory of 4708	3296	3ff802e875d54b64758cc2e91844a7d1d9c87c348dfc18604db5ee6dd856cca3.exe	CasPol.exe
PID 3296 wrote to memory of 4708	3296	3ff802e875d54b64758cc2e91844a7d1d9c87c348dfc18604db5ee6dd856cca3.exe	CasPol.exe
PID 3296 wrote to memory of 4708	3296	3ff802e875d54b64758cc2e91844a7d1d9c87c348dfc18604db5ee6dd856cca3.exe	CasPol.exe
PID 3296 wrote to memory of 4708	3296	3ff802e875d54b64758cc2e91844a7d1d9c87c348dfc18604db5ee6dd856cca3.exe	CasPol.exe
PID 3296 wrote to memory of 4708	3296	3ff802e875d54b64758cc2e91844a7d1d9c87c348dfc18604db5ee6dd856cca3.exe	CasPol.exe
PID 3296 wrote to memory of 4708	3296	3ff802e875d54b64758cc2e91844a7d1d9c87c348dfc18604db5ee6dd856cca3.exe	CasPol.exe
PID 3296 wrote to memory of 4708	3296	3ff802e875d54b64758cc2e91844a7d1d9c87c348dfc18604db5ee6dd856cca3.exe	CasPol.exe

outlook_office_path 1 IoCs

Processes:

CasPol.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe

outlook_win_path 1 IoCs

Processes:

CasPol.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe

C:\Users\Admin\AppData\Local\Temp\3ff802e875d54b64758cc2e91844a7d1d9c87c348dfc18604db5ee6dd856cca3.exe
"C:\Users\Admin\AppData\Local\Temp\3ff802e875d54b64758cc2e91844a7d1d9c87c348dfc18604db5ee6dd856cca3.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3296

C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4708

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/3296-132-0x000002876E4C0000-0x000002876E596000-memory.dmp

Filesize
856KB

Download
memory/3296-133-0x00007FF8965C0000-0x00007FF897081000-memory.dmp

Filesize
10.8MB

Download
memory/3296-134-0x00007FF8965C0000-0x00007FF897081000-memory.dmp

Filesize
10.8MB

Download
memory/3296-137-0x00007FF8965C0000-0x00007FF897081000-memory.dmp

Filesize
10.8MB

Download
memory/4708-135-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/4708-136-0x0000000000437BEE-mapping.dmp

Download
memory/4708-138-0x0000000005660000-0x0000000005C04000-memory.dmp

Filesize
5.6MB

Download
memory/4708-139-0x0000000005150000-0x00000000051EC000-memory.dmp

Filesize
624KB

Download
memory/4708-140-0x0000000005EC0000-0x0000000005F26000-memory.dmp

Filesize
408KB

Download
memory/4708-141-0x0000000006850000-0x00000000068A0000-memory.dmp

Filesize
320KB

Download