agenttesla | 48943e7582ebed0191020b20057773b1f4a91d1abba8c30a6bf11cbde2fa7697

General

Target

a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe
Size

1.3MB
MD5

8195933d86c3d1c32779574cee331e37
SHA1

6ca5c19d8d6d6268b0c9e04e149e7d8ec5ca4197
SHA256

a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036
SHA512

ad4ee8dcd1ed22d1dac2f97f60cba69f89605873b0ca465bf9df644ee8721e22bad5fd2305c5f230f42497e2997637bdb56abbb58073061f731665d7f5c7212f
SSDEEP

12288:PHLwA5XPo7/fBSkkkkkkkkkkkkkkx9L+kIkkvkkkkkkkk7ZLyszVNA87b8CoirI8:PH8A5A7klIGs087PoitB+JS6afj7

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.yillyenterprise.com
Port:
587
Username:
[email protected]
Password:
Iseeyou.com

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral2/memory/2892-13-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
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
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe
Key opened	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe
Key opened	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3976 set thread context of 2892	3976	a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe	98

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3976	a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe
3976	a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe
2892	a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe
2892	a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3976	a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe
Token: SeDebugPrivilege	2892	a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3976 wrote to memory of 3480	3976	a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe	97
PID 3976 wrote to memory of 3480	3976	a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe	97
PID 3976 wrote to memory of 3480	3976	a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe	97
PID 3976 wrote to memory of 2892	3976	a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe	98
PID 3976 wrote to memory of 2892	3976	a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe	98
PID 3976 wrote to memory of 2892	3976	a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe	98
PID 3976 wrote to memory of 2892	3976	a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe	98
PID 3976 wrote to memory of 2892	3976	a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe	98
PID 3976 wrote to memory of 2892	3976	a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe	98
PID 3976 wrote to memory of 2892	3976	a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe	98
PID 3976 wrote to memory of 2892	3976	a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe	98

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe

C:\Users\Admin\AppData\Local\Temp\a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe
"C:\Users\Admin\AppData\Local\Temp\a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3976
- C:\Users\Admin\AppData\Local\Temp\a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe
  "{path}"
  2⤵
  PID:3480
- C:\Users\Admin\AppData\Local\Temp\a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2892

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

5

T1552

Credentials In Files

4

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\a9993c32ba563caa1d5189a138ebd607fa15cfbbf9dd6124f11215f9803cc036.exe.log

Filesize
1KB

MD5
17573558c4e714f606f997e5157afaac

SHA1
13e16e9415ceef429aaf124139671ebeca09ed23

SHA256
c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

SHA512
f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

Download Submit
memory/2892-13-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2892-25-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/2892-24-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/2892-23-0x00000000067E0000-0x0000000006830000-memory.dmp

Filesize
320KB

Download
memory/2892-22-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/2892-21-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/2892-20-0x0000000005D40000-0x0000000005DA6000-memory.dmp

Filesize
408KB

Download
memory/2892-19-0x0000000005990000-0x00000000059A8000-memory.dmp

Filesize
96KB

Download
memory/2892-18-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/2892-16-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/3976-6-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/3976-5-0x00000000057F0000-0x00000000057FA000-memory.dmp

Filesize
40KB

Download
memory/3976-11-0x000000000C790000-0x000000000C816000-memory.dmp

Filesize
536KB

Download
memory/3976-10-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/3976-17-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/3976-9-0x000000007476E000-0x000000007476F000-memory.dmp

Filesize
4KB

Download
memory/3976-8-0x00000000031B0000-0x00000000031C4000-memory.dmp

Filesize
80KB

Download
memory/3976-12-0x00000000074F0000-0x000000000752C000-memory.dmp

Filesize
240KB

Download
memory/3976-0-0x000000007476E000-0x000000007476F000-memory.dmp

Filesize
4KB

Download
memory/3976-7-0x0000000005AC0000-0x0000000005B16000-memory.dmp

Filesize
344KB

Download
memory/3976-4-0x00000000058C0000-0x0000000005952000-memory.dmp

Filesize
584KB

Download
memory/3976-3-0x0000000005E70000-0x0000000006414000-memory.dmp

Filesize
5.6MB

Download
memory/3976-2-0x0000000005820000-0x00000000058BC000-memory.dmp

Filesize
624KB

Download
memory/3976-1-0x0000000000CA0000-0x0000000000DF4000-memory.dmp

Filesize
1.3MB

Download

Analysis

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