agenttesla | 010729194c08b557dc260c821d07d35b2c8fdfbaa18ff27c7f1f2fe233850fd1

General

Target
010729194c08b557dc260c821d07d35b2c8fdfbaa18ff27c7f1f2fe233850fd1.vbs
Size 3.2MB
Sample240613-rl2bkssdmc
SHA256 010729194c08b557dc260c821d07d35b2c8fdfbaa18ff27c7f1f2fe233850fd1
MD5 3a3f7a4a8b7ea91bd05523cb83456441
SHA1 20bbbe54a25cced1f74f34521918effd6aa5877d
SHA512 c86b406a756a9f5ad7f1368e741687af94e12ee258fc42c99c9f14d6118ded6976a09e7d7fa1840d17c72d827a900760bf69dceb774798db1a3e86fa293ba0ed
SSDEEP 6144:0BRlhwEEM38fLACxm31KtNnzZnZjIylZLImb:0zYuIN/flHb
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

agenttesla execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
smtp.gmail.com
Port
587
Username
[email protected]
Password
bizr usjt guapiims
Email to
[email protected]

Signatures

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

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\010729194c08b557dc260c821d07d35b2c8fdfbaa18ff27c7f1f2fe233850fd1.vbs	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\010729194c08b557dc260c821d07d35b2c8fdfbaa18ff27c7f1f2fe233850fd1.vbs	WScript.exe

Executes dropped EXE 1 IoCs

pid	Process
2796	Gcp.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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Windows\CurrentVersion\Run\010729194c08b557dc260c821d07d35b2c8fdfbaa18ff27c7f1f2fe233850fd1 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\010729194c08b557dc260c821d07d35b2c8fdfbaa18ff27c7f1f2fe233850fd1.vbs\""	WScript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\010729194c08b557dc260c821d07d35b2c8fdfbaa18ff27c7f1f2fe233850fd1 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\010729194c08b557dc260c821d07d35b2c8fdfbaa18ff27c7f1f2fe233850fd1.vbs\""	WScript.exe

Looks up external IP address via web service 5 IoCs

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

flow	ioc
11	ip-api.com
14	ip-api.com
16	ip-api.com
3	ip-api.com
8	ip-api.com

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2796	Gcp.exe
2796	Gcp.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2796	Gcp.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2796	Gcp.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 2240	2196	WScript.exe	28
PID 2196 wrote to memory of 2240	2196	WScript.exe	28
PID 2196 wrote to memory of 2240	2196	WScript.exe	28
PID 2240 wrote to memory of 2796	2240	WScript.exe	30
PID 2240 wrote to memory of 2796	2240	WScript.exe	30
PID 2240 wrote to memory of 2796	2240	WScript.exe	30
PID 2240 wrote to memory of 2796	2240	WScript.exe	30

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\010729194c08b557dc260c821d07d35b2c8fdfbaa18ff27c7f1f2fe233850fd1.vbs"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\icon-smile-kl.js"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2240
- - C:\Users\Admin\AppData\Local\Temp\Gcp.exe
    "C:\Users\Admin\AppData\Local\Temp\Gcp.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2796

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

JavaScript

1

T1059.007

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

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Downloads

Gcp.exe

Path C:\Users\Admin\AppData\Local\Temp\Gcp.exe
Size 243KB
SHA256 1f19267129cbabe2e50837f88eb2854c64521bd964f43a58f37365e60d5da5bd
MD5 d868c9dfdd377a1128f484a33c9d427d
SHA1 3cd816d84a5a06a669eb5cde82aa3eca272a6f13
SHA512 2702e2df330931d9fd2ed15e54aec37dbd68737cf3db642a8842cab813b9e3be67b7a5356d426772690b0b9e5c384931640d891f51662f870a9d3022eabce52b
SSDEEP 3072:734DXDvzgiyxjiNSWj+cLuaD2gSrb5hB38EIOsF:734DXDvzg1ib6lgSrR8EHs
MD5 SHA1 SHA512 SSDEEP

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icon-smile-kl.js

Path C:\Users\Admin\AppData\Local\Temp\icon-smile-kl.js
Size 345KB
SHA256 0a75da170bd6e1cd271f48974d98345fb60b00ac3327b5e9d8fa8394c83800db
MD5 5ffa2f9b4305ee8ab9676456a5c41ae7
SHA1 9e517938920844699eddd8043df45e075682eef7
SHA512 06ed498e22a982b135c4c380cd01d296d2f05b106b5c75be4cccdaf41575750622eb7c8d5448dc935ebc6b5d525e803b9f4a3b132d503b6eccf4c28e42cad28d
SSDEEP 6144:0KUb2TCD3Gfn8E/3daJn68s+1bfFe45sqFydvjnU:0KUaoe3GlfFV2qFydTU
MD5 SHA1 SHA512 SSDEEP

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010729194c08b557dc260c821d07d35b2c8fdfbaa18ff27c7f1f2fe233850fd1.vbs

Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\010729194c08b557dc260c821d07d35b2c8fdfbaa18ff27c7f1f2fe233850fd1.vbs
Size 3.2MB
SHA256 010729194c08b557dc260c821d07d35b2c8fdfbaa18ff27c7f1f2fe233850fd1
MD5 3a3f7a4a8b7ea91bd05523cb83456441
SHA1 20bbbe54a25cced1f74f34521918effd6aa5877d
SHA512 c86b406a756a9f5ad7f1368e741687af94e12ee258fc42c99c9f14d6118ded6976a09e7d7fa1840d17c72d827a900760bf69dceb774798db1a3e86fa293ba0ed
SSDEEP 6144:0BRlhwEEM38fLACxm31KtNnzZnZjIylZLImb:0zYuIN/flHb
MD5 SHA1 SHA512 SSDEEP

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memory/2796-12-0x00000000746DE000-0x00000000746DF000-memory.dmp

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memory/2796-13-0x0000000000250000-0x0000000000294000-memory.dmp

Download

memory/2796-14-0x00000000746D0000-0x0000000074DBE000-memory.dmp

Download

memory/2796-15-0x00000000746DE000-0x00000000746DF000-memory.dmp

Download

memory/2796-16-0x00000000746D0000-0x0000000074DBE000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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