agenttesla | ab3722d5df5b9c175bb8e2992895ffb9b2ce317fd3b1e8f49a10b7433ee5a17e

Analysis

max time kernel
138s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-en-20220112
submitted
19/01/2022, 12:30

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General

Target
6ca4ea56e41a8e70a6f00be6e96ec688.exe
Size 412KB
Sample220119-ppg11ahfhl
SHA256 ab3722d5df5b9c175bb8e2992895ffb9b2ce317fd3b1e8f49a10b7433ee5a17e
MD5 6ca4ea56e41a8e70a6f00be6e96ec688
SHA1 f1b498376efdc7a5cf12cc8ed11f2274da8bfab0
SHA512 e44fdd63618bc7d38dfbda492db21bed4e0be92cba8d11a66be67a0bcca5aef6e6b475c8cdfd13c6a8ace3ddf3c3eae5f647b74f8036c687a9ab383d4b20d965
MD5 SHA1 SHA512

Score

10^/10

agenttesla warzonerat collection infostealer keylogger persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

warzonerat

103.133.111.110:5200

Extracted

Family

agenttesla

https://api.telegram.org/bot5001070930:AAGS6zcnpfl-Q3wAAaVHDGdca4bVokv7sYg/sendDocument

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
WarzoneRat, AveMaria
WarzoneRat is a native RAT developed in C++ with multiple plugins sold as a MaaS.
rat infostealer warzonerat
suricata: ET MALWARE Possible Dridex Download URI Struct with no referer
suricata: ET MALWARE Possible Dridex Download URI Struct with no referer
suricata
suricata: ET MALWARE Possible Malicious Macro DL EXE Feb 2016
suricata: ET MALWARE Possible Malicious Macro DL EXE Feb 2016
suricata

AgentTesla Payload 1 IoCs

resource	yara_rule
behavioral2/memory/2808-143-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Warzone RAT Payload 2 IoCs

rat

resource	yara_rule
behavioral2/memory/2908-136-0x0000000000400000-0x0000000000554000-memory.dmp	warzonerat
behavioral2/memory/2908-137-0x0000000000400000-0x0000000000554000-memory.dmp	warzonerat

Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
1720	Df.Cmpphj.exe

Sets DLL path for service in the registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	6ca4ea56e41a8e70a6f00be6e96ec688.exe

Loads dropped DLL 7 IoCs

pid	Process
404	Process not Found
2908	6ca4ea56e41a8e70a6f00be6e96ec688.exe
2908	6ca4ea56e41a8e70a6f00be6e96ec688.exe
2908	6ca4ea56e41a8e70a6f00be6e96ec688.exe
2908	6ca4ea56e41a8e70a6f00be6e96ec688.exe
2908	6ca4ea56e41a8e70a6f00be6e96ec688.exe
2908	6ca4ea56e41a8e70a6f00be6e96ec688.exe

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
T1081

Accesses Microsoft Outlook profiles 1 TTPs 2 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	6ca4ea56e41a8e70a6f00be6e96ec688.exe
Key opened	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	6ca4ea56e41a8e70a6f00be6e96ec688.exe

Modifies WinLogon 2 TTPs 4 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\SpecialAccounts\UserList	6ca4ea56e41a8e70a6f00be6e96ec688.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\SpecialAccounts	6ca4ea56e41a8e70a6f00be6e96ec688.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\SpecialAccounts\UserList\pFjjowE = "0"	6ca4ea56e41a8e70a6f00be6e96ec688.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\AllowMultipleTSSessions = "1"	6ca4ea56e41a8e70a6f00be6e96ec688.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\System32\rfxvmt.dll	6ca4ea56e41a8e70a6f00be6e96ec688.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3260 set thread context of 2908	3260	6ca4ea56e41a8e70a6f00be6e96ec688.exe	59
PID 1720 set thread context of 2808	1720	Df.Cmpphj.exe	64

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft DN1\sqlmap.dll	6ca4ea56e41a8e70a6f00be6e96ec688.exe
File created	C:\Program Files\Microsoft DN1\rdpwrap.ini	6ca4ea56e41a8e70a6f00be6e96ec688.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1720	Df.Cmpphj.exe
1720	Df.Cmpphj.exe
2808	RegSvcs.exe
2808	RegSvcs.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
676	Process not Found

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2908	6ca4ea56e41a8e70a6f00be6e96ec688.exe
Token: SeDebugPrivilege	1720	Df.Cmpphj.exe
Token: SeDebugPrivilege	2808	RegSvcs.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 3260 wrote to memory of 2908	3260	6ca4ea56e41a8e70a6f00be6e96ec688.exe	59
PID 3260 wrote to memory of 2908	3260	6ca4ea56e41a8e70a6f00be6e96ec688.exe	59
PID 3260 wrote to memory of 2908	3260	6ca4ea56e41a8e70a6f00be6e96ec688.exe	59
PID 3260 wrote to memory of 2908	3260	6ca4ea56e41a8e70a6f00be6e96ec688.exe	59
PID 3260 wrote to memory of 2908	3260	6ca4ea56e41a8e70a6f00be6e96ec688.exe	59
PID 3260 wrote to memory of 2908	3260	6ca4ea56e41a8e70a6f00be6e96ec688.exe	59
PID 3260 wrote to memory of 2908	3260	6ca4ea56e41a8e70a6f00be6e96ec688.exe	59
PID 3260 wrote to memory of 2908	3260	6ca4ea56e41a8e70a6f00be6e96ec688.exe	59
PID 3260 wrote to memory of 2908	3260	6ca4ea56e41a8e70a6f00be6e96ec688.exe	59
PID 3260 wrote to memory of 2908	3260	6ca4ea56e41a8e70a6f00be6e96ec688.exe	59
PID 3260 wrote to memory of 2908	3260	6ca4ea56e41a8e70a6f00be6e96ec688.exe	59
PID 2908 wrote to memory of 1720	2908	6ca4ea56e41a8e70a6f00be6e96ec688.exe	60
PID 2908 wrote to memory of 1720	2908	6ca4ea56e41a8e70a6f00be6e96ec688.exe	60
PID 2908 wrote to memory of 1720	2908	6ca4ea56e41a8e70a6f00be6e96ec688.exe	60
PID 1720 wrote to memory of 2808	1720	Df.Cmpphj.exe	64
PID 1720 wrote to memory of 2808	1720	Df.Cmpphj.exe	64
PID 1720 wrote to memory of 2808	1720	Df.Cmpphj.exe	64
PID 1720 wrote to memory of 2808	1720	Df.Cmpphj.exe	64
PID 1720 wrote to memory of 2808	1720	Df.Cmpphj.exe	64
PID 1720 wrote to memory of 2808	1720	Df.Cmpphj.exe	64
PID 1720 wrote to memory of 2808	1720	Df.Cmpphj.exe	64
PID 1720 wrote to memory of 2808	1720	Df.Cmpphj.exe	64

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	6ca4ea56e41a8e70a6f00be6e96ec688.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	6ca4ea56e41a8e70a6f00be6e96ec688.exe

C:\Users\Admin\AppData\Local\Temp\6ca4ea56e41a8e70a6f00be6e96ec688.exe
"C:\Users\Admin\AppData\Local\Temp\6ca4ea56e41a8e70a6f00be6e96ec688.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3260
- C:\Users\Admin\AppData\Local\Temp\6ca4ea56e41a8e70a6f00be6e96ec688.exe
  "C:\Users\Admin\AppData\Local\Temp\6ca4ea56e41a8e70a6f00be6e96ec688.exe"
  2⤵
  - Checks computer location settings
  - Loads dropped DLL
  - Accesses Microsoft Outlook profiles
  - Modifies WinLogon
  - Drops file in System32 directory
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  - outlook_win_path
  PID:2908
- - C:\Users\Admin\AppData\Roaming\Df.Cmpphj.exe
    "C:\Users\Admin\AppData\Roaming\Df.Cmpphj.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1720
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2808

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/1720-141-0x0000000005570000-0x0000000005B14000-memory.dmp

Download

memory/1720-140-0x0000000000C90000-0x0000000000D1E000-memory.dmp

Download

memory/2808-145-0x0000000005890000-0x00000000058F6000-memory.dmp

Download

memory/2808-143-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/2808-144-0x00000000048F0000-0x0000000004E94000-memory.dmp

Download

memory/2908-137-0x0000000000400000-0x0000000000554000-memory.dmp

Download

memory/2908-152-0x0000000004B60000-0x0000000004BE4000-memory.dmp

Download

memory/2908-136-0x0000000000400000-0x0000000000554000-memory.dmp

Download

memory/3260-130-0x00000000003D0000-0x0000000000440000-memory.dmp

Download

memory/3260-135-0x00000000072B0000-0x000000000734C000-memory.dmp

Download

memory/3260-134-0x0000000004E00000-0x0000000004E0A000-memory.dmp

Download

memory/3260-133-0x0000000004D90000-0x0000000004E22000-memory.dmp

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memory/3260-132-0x0000000004EA0000-0x0000000004F32000-memory.dmp

Download

memory/3260-131-0x0000000005450000-0x00000000059F4000-memory.dmp

Download