agenttesla | 301ed1bb47c406723e68efa053bb4d4f5ce8fa794676c4411b0d2b506696d228

Analysis

max time kernel
128s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
12/03/2024, 02:22

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General

Target

301ed1bb47c406723e68efa053bb4d4f5ce8fa794676c4411b0d2b506696d228.exe
Size

40KB
MD5

37e8da7ff8487da599c89c8a2b3b7d96
SHA1

144d2581c8bbc52c50b8e7a0d2cb84bb7e0c7c0f
SHA256

301ed1bb47c406723e68efa053bb4d4f5ce8fa794676c4411b0d2b506696d228
SHA512

1b861b54217f66d82784d920abdc8710944f2a223a788c16f7228102a781e54a5e881333caef32f18c63d3377c782afbb48f37f921f1cba2f9b91bab7e8e3af8
SSDEEP

768:lqWEIJXt+ONNXyiRP0zlu5GIGVlW3qWDnrvBF0jrYdZt:lvEmt+ONNXycP0zlu5GIGVl4qWDnrvTN

Score

10^/10

agenttesla discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.orako.co.ke
Port:
587
Username:
[email protected]
Password:
ao655d3dSP[{
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Contacts a large (4261) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs

resource	yara_rule
behavioral2/memory/23488-6-0x0000000000400000-0x0000000000442000-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/23488-6-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects executables packed with or use KoiVM 1 IoCs

resource	yara_rule
behavioral2/memory/5044-5-0x000002547FDA0000-0x000002547FE36000-memory.dmp	INDICATOR_EXE_Packed_KoiVM

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

resource	yara_rule
behavioral2/memory/23488-6-0x0000000000400000-0x0000000000442000-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/23488-6-0x0000000000400000-0x0000000000442000-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/23488-6-0x0000000000400000-0x0000000000442000-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/23488-6-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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
Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

Looks up external IP address via web service 2 IoCs

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

flow	ioc
7211	api.ipify.org
7210	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5044 set thread context of 23488	5044	301ed1bb47c406723e68efa053bb4d4f5ce8fa794676c4411b0d2b506696d228.exe	93

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
23488	regasm.exe
23488	regasm.exe
23488	regasm.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5044	301ed1bb47c406723e68efa053bb4d4f5ce8fa794676c4411b0d2b506696d228.exe
Token: SeDebugPrivilege	23488	regasm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
23488	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 5044 wrote to memory of 23488	5044	301ed1bb47c406723e68efa053bb4d4f5ce8fa794676c4411b0d2b506696d228.exe	93
PID 5044 wrote to memory of 23488	5044	301ed1bb47c406723e68efa053bb4d4f5ce8fa794676c4411b0d2b506696d228.exe	93
PID 5044 wrote to memory of 23488	5044	301ed1bb47c406723e68efa053bb4d4f5ce8fa794676c4411b0d2b506696d228.exe	93
PID 5044 wrote to memory of 23488	5044	301ed1bb47c406723e68efa053bb4d4f5ce8fa794676c4411b0d2b506696d228.exe	93
PID 5044 wrote to memory of 23488	5044	301ed1bb47c406723e68efa053bb4d4f5ce8fa794676c4411b0d2b506696d228.exe	93
PID 5044 wrote to memory of 23488	5044	301ed1bb47c406723e68efa053bb4d4f5ce8fa794676c4411b0d2b506696d228.exe	93
PID 5044 wrote to memory of 23488	5044	301ed1bb47c406723e68efa053bb4d4f5ce8fa794676c4411b0d2b506696d228.exe	93
PID 5044 wrote to memory of 23488	5044	301ed1bb47c406723e68efa053bb4d4f5ce8fa794676c4411b0d2b506696d228.exe	93
PID 5044 wrote to memory of 23500	5044	301ed1bb47c406723e68efa053bb4d4f5ce8fa794676c4411b0d2b506696d228.exe	94
PID 5044 wrote to memory of 23500	5044	301ed1bb47c406723e68efa053bb4d4f5ce8fa794676c4411b0d2b506696d228.exe	94
PID 5044 wrote to memory of 23500	5044	301ed1bb47c406723e68efa053bb4d4f5ce8fa794676c4411b0d2b506696d228.exe	94

C:\Users\Admin\AppData\Local\Temp\301ed1bb47c406723e68efa053bb4d4f5ce8fa794676c4411b0d2b506696d228.exe
"C:\Users\Admin\AppData\Local\Temp\301ed1bb47c406723e68efa053bb4d4f5ce8fa794676c4411b0d2b506696d228.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5044
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:23488
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
  2⤵
  PID:23500

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

Network Service Discovery

T1046

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/5044-0-0x0000025461080000-0x000002546108E000-memory.dmp

Filesize
56KB

Download
memory/5044-1-0x00007FFE123D0000-0x00007FFE12E91000-memory.dmp

Filesize
10.8MB

Download
memory/5044-2-0x000002547B8B0000-0x000002547B8C0000-memory.dmp

Filesize
64KB

Download
memory/5044-3-0x00007FFE123D0000-0x00007FFE12E91000-memory.dmp

Filesize
10.8MB

Download
memory/5044-4-0x000002547B8B0000-0x000002547B8C0000-memory.dmp

Filesize
64KB

Download
memory/5044-5-0x000002547FDA0000-0x000002547FE36000-memory.dmp

Filesize
600KB

Download
memory/23488-6-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/23488-7-0x0000000074160000-0x0000000074910000-memory.dmp

Filesize
7.7MB

Download
memory/23488-8-0x0000000005C10000-0x00000000061B4000-memory.dmp

Filesize
5.6MB

Download
memory/23488-9-0x00000000055A0000-0x00000000055B0000-memory.dmp

Filesize
64KB

Download
memory/23488-10-0x0000000005760000-0x00000000057C6000-memory.dmp

Filesize
408KB

Download
memory/23488-11-0x0000000006B80000-0x0000000006BD0000-memory.dmp

Filesize
320KB

Download
memory/23488-12-0x0000000006C70000-0x0000000006D0C000-memory.dmp

Filesize
624KB

Download
memory/23488-13-0x0000000074160000-0x0000000074910000-memory.dmp

Filesize
7.7MB

Download
memory/23488-14-0x0000000006DB0000-0x0000000006E42000-memory.dmp

Filesize
584KB

Download
memory/23488-15-0x0000000006D30000-0x0000000006D3A000-memory.dmp

Filesize
40KB

Download