agenttesla | 99b71f4896b633a9d4b040d94b4d001a6917d92ad4d33d71b3da1b04d688f5f2

General

Target

Purchase Order.exe
Size

923KB
MD5

18a17c811ca2021387183cb84d82782a
SHA1

c0519c3bdc8b8bebe4adf2a24cfe9a1ff350793e
SHA256

99b71f4896b633a9d4b040d94b4d001a6917d92ad4d33d71b3da1b04d688f5f2
SHA512

02b03d76380d6554fc83f854d74423548e53d8c92fff77e25a1d7fcc287b04d59f36b8819ad6c3c196d0cbe1ad9fac38194de22f5d6029e4c1db4d3280e16bd4

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.cavannaqroup.com
Port:
587
Username:
[email protected]
Password:
~Jt2S@+nj1jk

Signatures

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

AgentTesla Payload 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3948-16-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/3948-17-0x00000000004371AE-mapping.dmp	family_agenttesla

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

Data from Local System
T1005

Credentials in Files
T1081
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

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Purchase Order.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\Mymp4 = "C:\\Users\\Admin\\AppData\\Roaming\\Mymp4\\Mymp4.exe"	Purchase Order.exe

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

14 api.ipify.org
15 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

Purchase Order.exe

description pid process target process

PID 3920 set thread context of 3948 3920 Purchase Order.exe Purchase Order.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

3916 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Purchase Order.exe

pid process

3948 Purchase Order.exe
3948 Purchase Order.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Purchase Order.exePurchase Order.exe

description pid process

Token: SeDebugPrivilege 3920 Purchase Order.exe
Token: SeDebugPrivilege 3948 Purchase Order.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Purchase Order.exe

pid process

3948 Purchase Order.exe

flow	ioc
14	api.ipify.org
15	api.ipify.org

description	pid	process	target process
PID 3920 set thread context of 3948	3920	Purchase Order.exe	Purchase Order.exe

pid	process
3916	schtasks.exe

pid	process
3948	Purchase Order.exe
3948	Purchase Order.exe

description	pid	process
Token: SeDebugPrivilege	3920	Purchase Order.exe
Token: SeDebugPrivilege	3948	Purchase Order.exe

pid	process
3948	Purchase Order.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

Purchase Order.exe

description	pid	process	target process
PID 3920 wrote to memory of 3916	3920	Purchase Order.exe	schtasks.exe
PID 3920 wrote to memory of 3916	3920	Purchase Order.exe	schtasks.exe
PID 3920 wrote to memory of 3916	3920	Purchase Order.exe	schtasks.exe
PID 3920 wrote to memory of 3948	3920	Purchase Order.exe	Purchase Order.exe
PID 3920 wrote to memory of 3948	3920	Purchase Order.exe	Purchase Order.exe
PID 3920 wrote to memory of 3948	3920	Purchase Order.exe	Purchase Order.exe
PID 3920 wrote to memory of 3948	3920	Purchase Order.exe	Purchase Order.exe
PID 3920 wrote to memory of 3948	3920	Purchase Order.exe	Purchase Order.exe
PID 3920 wrote to memory of 3948	3920	Purchase Order.exe	Purchase Order.exe
PID 3920 wrote to memory of 3948	3920	Purchase Order.exe	Purchase Order.exe
PID 3920 wrote to memory of 3948	3920	Purchase Order.exe	Purchase Order.exe

C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3920

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XqLYmqlIWIlVip" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1965.tmp"
2⤵
- Creates scheduled task(s)
PID:3916

C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3948

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Purchase Order.exe.log
MD5
65f1f0c7993639f9f9e1d524224a2c93

SHA1
5b51a6a56f3041dbc2d3f510252bbe68ffbbc59c

SHA256
e582e80a644a998d1b2958bdcb0cd1e899076befa7c5e868d033b3fe75a2ca93

SHA512
3e8953968bbc31f3105a0df28b95edfb4cee8af78ec527d47707b82e3d5fc2aa725fca574de3c963da53614e60d282408b21d075eed007be25679e9458bf1c23

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp1965.tmp
MD5
7482b6cc66b15cc057f3e2b1cdeff18b

SHA1
f24e162ae8dceea39c8493a8244fb544d900d415

SHA256
6b2969c477518ca15b1202312d8ffe762f3793a6a1ef89be56792b1e27818acf

SHA512
3782974fa529dad5d70f4504cd62eacf6ff2432636581b178a7a8c6a6e43e4099b0a3f131dd766d2ff3a72725e460138b2152d9d248182f779bce9ba21cb4e9d

Download Submit
memory/3916-14-0x0000000000000000-mapping.dmp

Download
memory/3920-8-0x0000000005640000-0x0000000005641000-memory.dmp

Filesize
4KB

Download
memory/3920-5-0x00000000056B0000-0x00000000056B1000-memory.dmp

Filesize
4KB

Download
memory/3920-2-0x0000000073300000-0x00000000739EE000-memory.dmp

Filesize
6.9MB

Download
memory/3920-9-0x0000000005970000-0x0000000005971000-memory.dmp

Filesize
4KB

Download
memory/3920-10-0x0000000006150000-0x0000000006151000-memory.dmp

Filesize
4KB

Download
memory/3920-11-0x0000000005950000-0x0000000005953000-memory.dmp

Filesize
12KB

Download
memory/3920-12-0x0000000005900000-0x0000000005901000-memory.dmp

Filesize
4KB

Download
memory/3920-13-0x0000000006850000-0x00000000068FC000-memory.dmp

Filesize
688KB

Download
memory/3920-6-0x0000000005C50000-0x0000000005C51000-memory.dmp

Filesize
4KB

Download
memory/3920-7-0x0000000005750000-0x0000000005751000-memory.dmp

Filesize
4KB

Download
memory/3920-3-0x0000000000C00000-0x0000000000C01000-memory.dmp

Filesize
4KB

Download
memory/3948-17-0x00000000004371AE-mapping.dmp

Download
memory/3948-16-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3948-19-0x0000000073300000-0x00000000739EE000-memory.dmp

Filesize
6.9MB

Download
memory/3948-24-0x0000000005640000-0x0000000005641000-memory.dmp

Filesize
4KB

Download
memory/3948-25-0x0000000005760000-0x0000000005761000-memory.dmp

Filesize
4KB

Download
memory/3948-26-0x0000000006380000-0x0000000006381000-memory.dmp

Filesize
4KB

Download
memory/3948-29-0x0000000005641000-0x0000000005642000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads