agenttesla | 1026bd897eeb6e5149005278049e938a8de987e22bf74bd8a5ae45d4206f2914

General

Target

CONTRACT #683793.exe
Size

788KB
MD5

ea2c59815cfee933ed0d4b85f3429082
SHA1

0f0ba262e017c7a1587a0759680953f4b5d41e43
SHA256

ddb8df086907b77b37c15fa698d27f3bf388e46edc7e3f982faf5d110b36e914
SHA512

efab7f4be2abdb8421a1f299fdceaf06ee11b27e9fdd2d6849efaeec5ba4f1f4589911d8a69feadae9250c2b3dba7eed450ce96311d625fd44338320115abb93
SSDEEP

24576:UFUUa76CkkFg/IyXtFfya2X71pXc2oelYIU+C73:MPkoX3fyxX5psrelch7

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.southernboilers.org
Port:
587
Username:
[email protected]
Password:
Sksmoke2018#
Email To:
[email protected]

Signatures

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

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 stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

CONTRACT #683793.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CONTRACT #683793.exe
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CONTRACT #683793.exe
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CONTRACT #683793.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

4 api.ipify.org
5 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

CONTRACT #683793.exe

description pid process target process

PID 2028 set thread context of 1872 2028 CONTRACT #683793.exe CONTRACT #683793.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

580 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

CONTRACT #683793.exeCONTRACT #683793.exe

pid process

2028 CONTRACT #683793.exe
1872 CONTRACT #683793.exe
1872 CONTRACT #683793.exe
1872 CONTRACT #683793.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

CONTRACT #683793.exeCONTRACT #683793.exe

description pid process

Token: SeDebugPrivilege 2028 CONTRACT #683793.exe
Token: SeDebugPrivilege 1872 CONTRACT #683793.exe

flow	ioc
4	api.ipify.org
5	api.ipify.org

description	pid	process	target process
PID 2028 set thread context of 1872	2028	CONTRACT #683793.exe	CONTRACT #683793.exe

pid	process
580	schtasks.exe

pid	process
2028	CONTRACT #683793.exe
1872	CONTRACT #683793.exe
1872	CONTRACT #683793.exe
1872	CONTRACT #683793.exe

description	pid	process
Token: SeDebugPrivilege	2028	CONTRACT #683793.exe
Token: SeDebugPrivilege	1872	CONTRACT #683793.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

CONTRACT #683793.exe

description	pid	process	target process
PID 2028 wrote to memory of 580	2028	CONTRACT #683793.exe	schtasks.exe
PID 2028 wrote to memory of 580	2028	CONTRACT #683793.exe	schtasks.exe
PID 2028 wrote to memory of 580	2028	CONTRACT #683793.exe	schtasks.exe
PID 2028 wrote to memory of 580	2028	CONTRACT #683793.exe	schtasks.exe
PID 2028 wrote to memory of 1872	2028	CONTRACT #683793.exe	CONTRACT #683793.exe
PID 2028 wrote to memory of 1872	2028	CONTRACT #683793.exe	CONTRACT #683793.exe
PID 2028 wrote to memory of 1872	2028	CONTRACT #683793.exe	CONTRACT #683793.exe
PID 2028 wrote to memory of 1872	2028	CONTRACT #683793.exe	CONTRACT #683793.exe
PID 2028 wrote to memory of 1872	2028	CONTRACT #683793.exe	CONTRACT #683793.exe
PID 2028 wrote to memory of 1872	2028	CONTRACT #683793.exe	CONTRACT #683793.exe
PID 2028 wrote to memory of 1872	2028	CONTRACT #683793.exe	CONTRACT #683793.exe
PID 2028 wrote to memory of 1872	2028	CONTRACT #683793.exe	CONTRACT #683793.exe
PID 2028 wrote to memory of 1872	2028	CONTRACT #683793.exe	CONTRACT #683793.exe

outlook_office_path 1 IoCs

Processes:

CONTRACT #683793.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CONTRACT #683793.exe

outlook_win_path 1 IoCs

Processes:

CONTRACT #683793.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CONTRACT #683793.exe

C:\Users\Admin\AppData\Local\Temp\CONTRACT #683793.exe
"C:\Users\Admin\AppData\Local\Temp\CONTRACT #683793.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2028

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ytHXSIrXVRUu" /XML "C:\Users\Admin\AppData\Local\Temp\tmp81FD.tmp"
2⤵
- Creates scheduled task(s)
PID:580

C:\Users\Admin\AppData\Local\Temp\CONTRACT #683793.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1872

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp81FD.tmp
Filesize
1KB

MD5
52c4797132990c8f26834b4cea9f29a6

SHA1
d9c17fd1a0ac0cbd1591313d2c8ab3942c89d6cf

SHA256
3650771aa1e0f78fac1b13980dfbd6cac18ac6d5fdf7568d995701a8c0a49f6d

SHA512
bdc4d4e2472fd392ea602bfeaaff70a0f8b9db4db8e292f68858c1204bc382706b9c0683c75a746c65cefbb5b5d74699a479bb34601ed2e2f67b0fa7bea65dcd

Download Submit
memory/580-59-0x0000000000000000-mapping.dmp

Download
memory/1872-64-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1872-61-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1872-62-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1872-65-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1872-66-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1872-67-0x0000000000437B8E-mapping.dmp

Download
memory/1872-69-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1872-71-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2028-57-0x00000000052D0000-0x0000000005352000-memory.dmp

Filesize
520KB

Download
memory/2028-58-0x0000000000990000-0x00000000009CC000-memory.dmp

Filesize
240KB

Download
memory/2028-56-0x0000000000320000-0x0000000000332000-memory.dmp

Filesize
72KB

Download
memory/2028-55-0x00000000759F1000-0x00000000759F3000-memory.dmp

Filesize
8KB

Download
memory/2028-54-0x0000000000020000-0x00000000000EA000-memory.dmp

Filesize
808KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads