agenttesla | 760ce8c50b699024ce487ce6ecbfed434637b263088d56fdae65eeeeb3e3cba4

Analysis

max time kernel
120s
max time network
125s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
13-02-2024 02:30

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Mlfqslack.exe
Size

957KB
MD5

1ed0157519eed05a82f4fa9e4b216e9b
SHA1

4f72cefac1c749247d42aed5eeaac8d6769b1548
SHA256

760ce8c50b699024ce487ce6ecbfed434637b263088d56fdae65eeeeb3e3cba4
SHA512

6214909cf6137cfff4f5fd9e9f3b0748bdefc0d17c89337c298460aea0a32dbf97835d1479619134714016b85baed4fa4dad403e5b84b8034c30979b01b3384f
SSDEEP

24576:0S3UTLpOf6/hltGfqUYgobAtglEsZdkKNliyMGrSv:dUnZhnGfBY7WsZdkKKyBs

Score

10^/10

agenttesla zgrat keylogger persistence rat spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.emulines.biz
Port:
587
Username:
[email protected]
Password:
7FZLGL7DTG0F
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
behavioral1/memory/2772-2-0x0000000004370000-0x0000000004428000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-3-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-12-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-10-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-14-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-8-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-16-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-20-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-22-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-26-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-24-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-32-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-30-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-36-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-34-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-40-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-42-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-38-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-44-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-46-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-48-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-52-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-54-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-56-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-50-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-28-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-58-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-60-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-62-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-18-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-6-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-4-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-64-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1
behavioral1/memory/2772-66-0x0000000004370000-0x0000000004423000-memory.dmp	family_zgrat_v1

ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\Dkjwx = "C:\\Users\\Admin\\AppData\\Roaming\\Dkjwx.exe"	Mlfqslack.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\sBRfm = "C:\\Users\\Admin\\AppData\\Roaming\\sBRfm\\sBRfm.exe"	Mlfqslack.exe

Looks up external IP address via web service 2 IoCs

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

flow	ioc
4	api.ipify.org
5	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2772 set thread context of 1056	2772	Mlfqslack.exe	28

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1056	Mlfqslack.exe
1056	Mlfqslack.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2772	Mlfqslack.exe
Token: SeDebugPrivilege	1056	Mlfqslack.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2772 wrote to memory of 1056	2772	Mlfqslack.exe	28
PID 2772 wrote to memory of 1056	2772	Mlfqslack.exe	28
PID 2772 wrote to memory of 1056	2772	Mlfqslack.exe	28
PID 2772 wrote to memory of 1056	2772	Mlfqslack.exe	28
PID 2772 wrote to memory of 1056	2772	Mlfqslack.exe	28
PID 2772 wrote to memory of 1056	2772	Mlfqslack.exe	28
PID 2772 wrote to memory of 1056	2772	Mlfqslack.exe	28
PID 2772 wrote to memory of 1056	2772	Mlfqslack.exe	28
PID 2772 wrote to memory of 1056	2772	Mlfqslack.exe	28

C:\Users\Admin\AppData\Local\Temp\Mlfqslack.exe
"C:\Users\Admin\AppData\Local\Temp\Mlfqslack.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2772
- C:\Users\Admin\AppData\Local\Temp\Mlfqslack.exe
  C:\Users\Admin\AppData\Local\Temp\Mlfqslack.exe
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1056

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

Loading Replay Monitor...

Downloads

memory/1056-1136-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1056-1141-0x0000000004C40000-0x0000000004C80000-memory.dmp

Filesize
256KB

Download
memory/1056-1140-0x00000000744B0000-0x0000000074B9E000-memory.dmp

Filesize
6.9MB

Download
memory/1056-1138-0x0000000004C40000-0x0000000004C80000-memory.dmp

Filesize
256KB

Download
memory/1056-1137-0x00000000744B0000-0x0000000074B9E000-memory.dmp

Filesize
6.9MB

Download
memory/2772-48-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-50-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-8-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-16-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-20-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-22-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-26-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-24-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-32-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-30-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-36-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-34-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-40-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-42-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-38-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-44-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-46-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-0-0x0000000000E70000-0x0000000000F66000-memory.dmp

Filesize
984KB

Download
memory/2772-52-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-54-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-56-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-14-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-28-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-58-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-60-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-62-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-18-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-6-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-4-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-64-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-66-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-1118-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2772-1117-0x0000000000E30000-0x0000000000E70000-memory.dmp

Filesize
256KB

Download
memory/2772-1120-0x00000000006D0000-0x000000000071C000-memory.dmp

Filesize
304KB

Download
memory/2772-1119-0x0000000000680000-0x00000000006C2000-memory.dmp

Filesize
264KB

Download
memory/2772-1132-0x0000000074530000-0x0000000074C1E000-memory.dmp

Filesize
6.9MB

Download
memory/2772-10-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-12-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-3-0x0000000004370000-0x0000000004423000-memory.dmp

Filesize
716KB

Download
memory/2772-2-0x0000000004370000-0x0000000004428000-memory.dmp

Filesize
736KB

Download
memory/2772-1-0x0000000074530000-0x0000000074C1E000-memory.dmp

Filesize
6.9MB

Download