agenttesla | d00b3c392926afbe84f34e46efcf17133109a96c8d4f4c391686f5d53c335ea1

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
13-05-2024 11:22

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General

Target

4.exe
Size

6KB
MD5

0d24e9e9a146641603e742ef304d5b3d
SHA1

3c6585d812885057cfc955b22ba6f0a9c6a7a8dc
SHA256

d00b3c392926afbe84f34e46efcf17133109a96c8d4f4c391686f5d53c335ea1
SHA512

6ff375c6afc0de7b9bf9c600366822cdc7d6e3146f6d43c4f3bdd4e7aceed2e0bb5c0df9c5ddc0d31cc4da8c946102b71e777ae6c1f09d367146d52d7b4a3b15
SSDEEP

96:G1RSTO80sajeatiIkt4I89TUO/vXDzhUbHvZ+CQzNt:GG8sSeui/t4IknDW7vZLy

Score

10^/10

agenttesla zgrat keylogger persistence rat spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.dentallink.com.uy
Port:
587
Username:
[email protected]
Password:
Salvador3274
Email To:
[email protected]

Signatures

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

Detect ZGRat V1 34 IoCs

resource	yara_rule
behavioral2/memory/3856-3-0x0000000008180000-0x00000000083B0000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-6-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-9-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-31-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-49-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-45-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-33-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-29-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-27-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-23-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-53-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-51-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-47-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-43-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-41-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-39-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-37-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-35-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-21-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-19-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-17-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-26-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-7-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-15-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-13-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-11-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-65-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-69-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-67-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-63-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-61-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-59-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-57-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1
behavioral2/memory/3856-55-0x0000000008180000-0x00000000083AA000-memory.dmp	family_zgrat_v1

ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Czpyzs = "C:\\Users\\Admin\\AppData\\Roaming\\Czpyzs.exe"	4.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
38	api.ipify.org
39	api.ipify.org
40	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3856 set thread context of 2440	3856	4.exe	96

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2440	RegAsm.exe
2440	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3856	4.exe
Token: SeDebugPrivilege	3856	4.exe
Token: SeDebugPrivilege	2440	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3856 wrote to memory of 2440	3856	4.exe	96
PID 3856 wrote to memory of 2440	3856	4.exe	96
PID 3856 wrote to memory of 2440	3856	4.exe	96
PID 3856 wrote to memory of 2440	3856	4.exe	96
PID 3856 wrote to memory of 2440	3856	4.exe	96
PID 3856 wrote to memory of 2440	3856	4.exe	96
PID 3856 wrote to memory of 2440	3856	4.exe	96
PID 3856 wrote to memory of 2440	3856	4.exe	96

C:\Users\Admin\AppData\Local\Temp\4.exe
"C:\Users\Admin\AppData\Local\Temp\4.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3856
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2440

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2440-4894-0x0000000074B60000-0x0000000075310000-memory.dmp

Filesize
7.7MB

Download
memory/2440-4895-0x0000000000600000-0x0000000000642000-memory.dmp

Filesize
264KB

Download
memory/2440-4896-0x0000000004C90000-0x0000000004CF6000-memory.dmp

Filesize
408KB

Download
memory/2440-4897-0x0000000074B60000-0x0000000075310000-memory.dmp

Filesize
7.7MB

Download
memory/2440-4898-0x0000000005FE0000-0x0000000005FEA000-memory.dmp

Filesize
40KB

Download
memory/2440-4899-0x0000000074B60000-0x0000000075310000-memory.dmp

Filesize
7.7MB

Download
memory/3856-41-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-35-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-3-0x0000000008180000-0x00000000083B0000-memory.dmp

Filesize
2.2MB

Download
memory/3856-4-0x0000000008960000-0x0000000008F04000-memory.dmp

Filesize
5.6MB

Download
memory/3856-5-0x0000000008450000-0x00000000084E2000-memory.dmp

Filesize
584KB

Download
memory/3856-6-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-9-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-31-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-49-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-45-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-33-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-29-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-27-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-23-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-53-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-51-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-47-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-43-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-1-0x0000000000160000-0x0000000000168000-memory.dmp

Filesize
32KB

Download
memory/3856-39-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-37-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-2-0x0000000074B60000-0x0000000075310000-memory.dmp

Filesize
7.7MB

Download
memory/3856-21-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-19-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-17-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-26-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-7-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-15-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-13-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-11-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-65-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-69-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-67-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-63-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-61-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-59-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-57-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-55-0x0000000008180000-0x00000000083AA000-memory.dmp

Filesize
2.2MB

Download
memory/3856-4886-0x0000000074B60000-0x0000000075310000-memory.dmp

Filesize
7.7MB

Download
memory/3856-4887-0x0000000005360000-0x00000000053CC000-memory.dmp

Filesize
432KB

Download
memory/3856-0-0x0000000074B6E000-0x0000000074B6F000-memory.dmp

Filesize
4KB

Download
memory/3856-4888-0x00000000052D0000-0x000000000531C000-memory.dmp

Filesize
304KB

Download
memory/3856-4889-0x00000000053F0000-0x0000000005444000-memory.dmp

Filesize
336KB

Download
memory/3856-4893-0x0000000074B60000-0x0000000075310000-memory.dmp

Filesize
7.7MB

Download