agenttesla | 79b24b3b9aff171d620fef8534158b903907eeaa355575e84737c70dc46ac097

General

Target

79b24b3b9aff171d620fef8534158b903907eeaa355575e84737c70dc46ac097.vbe
Size

1.5MB
MD5

6ea8e94e6cf3bdaf78f9c65323b31355
SHA1

fe42beedd57500fd99a1247e1ca82aaeccd7fd3a
SHA256

79b24b3b9aff171d620fef8534158b903907eeaa355575e84737c70dc46ac097
SHA512

fe243bdba72291a6d5ec533696c5fe8ec253b1cc79836813a3b16518ee288e0d6b0420f062f0341b92a22a3773910cf1cd57f391152c6b4b523f2f513f2b7fb2
SSDEEP

24576:2JvgH7sGiDzfHOtgZt3vTb181JLKCfrWNde1ds+C2rUS05rkHL+fzT:IjEKJvnQLRf/q2XmT

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.aceja.biz
Port:
587
Username:
[email protected]
Password:
Serenity#2773!
Email To:
[email protected]

Signatures

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

Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs

resource	yara_rule
behavioral2/memory/5068-13-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs

resource	yara_rule
behavioral2/memory/5068-13-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 1 IoCs

resource	yara_rule
behavioral2/memory/5068-13-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL

Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs

resource	yara_rule
behavioral2/memory/5068-13-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs

resource	yara_rule
behavioral2/memory/5068-13-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs

resource	yara_rule
behavioral2/memory/5068-13-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs

resource	yara_rule
behavioral2/memory/5068-13-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

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-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	WScript.exe

Executes dropped EXE 1 IoCs

pid	Process
1748	x.exe

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
3	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1748 set thread context of 5068	1748	x.exe	86

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
5068	caspol.exe
5068	caspol.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5068	caspol.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3796 wrote to memory of 1748	3796	WScript.exe	83
PID 3796 wrote to memory of 1748	3796	WScript.exe	83
PID 3796 wrote to memory of 1748	3796	WScript.exe	83
PID 1748 wrote to memory of 5068	1748	x.exe	86
PID 1748 wrote to memory of 5068	1748	x.exe	86
PID 1748 wrote to memory of 5068	1748	x.exe	86
PID 1748 wrote to memory of 5068	1748	x.exe	86
PID 1748 wrote to memory of 5068	1748	x.exe	86
PID 1748 wrote to memory of 5068	1748	x.exe	86
PID 1748 wrote to memory of 5068	1748	x.exe	86
PID 1748 wrote to memory of 5068	1748	x.exe	86

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\79b24b3b9aff171d620fef8534158b903907eeaa355575e84737c70dc46ac097.vbe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3796
- C:\Users\Admin\AppData\Local\Temp\x.exe
  "C:\Users\Admin\AppData\Local\Temp\x.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1748
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:5068

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\x.exe

Filesize
1.1MB

MD5
4c0d321070801528de265c6b41c0f5de

SHA1
61625576ebe01f2c81c863e4c52c935fbb3b7c5d

SHA256
c71fad3976a4c268a05980fc238f2b13cb7459657e035827b5c918bd661f5702

SHA512
5a5b3705147d99c46f32763b8e6e61c4459d8f8bff701ee19ed013c2a73fc9bb7732e363dc1d93daa055f6f3e1ee2f7097e14e0bffc1cd3bd9b42778ac8f7b99

Download Submit
memory/1748-11-0x000000007449E000-0x000000007449F000-memory.dmp

Filesize
4KB

Download
memory/1748-12-0x00000000005E0000-0x00000000006F8000-memory.dmp

Filesize
1.1MB

Download
memory/5068-13-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/5068-15-0x0000000074480000-0x000000007452B000-memory.dmp

Filesize
684KB

Download
memory/5068-16-0x0000000005D80000-0x0000000006324000-memory.dmp

Filesize
5.6MB

Download
memory/5068-17-0x0000000074480000-0x000000007452B000-memory.dmp

Filesize
684KB

Download
memory/5068-18-0x00000000058D0000-0x0000000005936000-memory.dmp

Filesize
408KB

Download
memory/5068-19-0x0000000006B90000-0x0000000006BE0000-memory.dmp

Filesize
320KB

Download
memory/5068-20-0x0000000006C80000-0x0000000006D1C000-memory.dmp

Filesize
624KB

Download
memory/5068-21-0x0000000074480000-0x000000007452B000-memory.dmp

Filesize
684KB

Download
memory/5068-22-0x0000000006DC0000-0x0000000006E52000-memory.dmp

Filesize
584KB

Download
memory/5068-23-0x0000000006D40000-0x0000000006D4A000-memory.dmp

Filesize
40KB

Download

Analysis

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