agenttesla | ea0228d4e1934f5985060ebb6467809a6823c86d63b069059f900ea5c8472aaa

General

Target

qEXWFLwvzmhOGhN.exe
Size

1.5MB
MD5

fcad27662d8115e1bcb527009ea7be64
SHA1

8c0d8f9371cd0643f8c563ef8ce9ea523f5bbd1c
SHA256

049f490b3650a0bc114b4bd4751a7c0f127db0ba749cebdba771dc8b32b13b2e
SHA512

cbf29e3cff2a2cadc204300470af9c94ea543202752cda44b13034817e62896872e1c0feaa4b5109888b57cb037ba7eaab9971498d8d0c25fec5751bb4639032
SSDEEP

24576:ER1NZfx3LwkwD2uEYY1pSlr3DV8bxOpwNlRDbq2E2TfxL:AVfx3L1zYY1E9/OzDbq2VTf

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.ru
Port:
587
Username:
[email protected]
Password:
Good1234@

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/4276-14-0x0000000000400000-0x000000000043C000-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-1-5-21-2392887640-1187051047-2909758433-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	qEXWFLwvzmhOGhN.exe
Key opened	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	qEXWFLwvzmhOGhN.exe
Key opened	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	qEXWFLwvzmhOGhN.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.

flow	ioc
35	api.ipify.org
36	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 456 set thread context of 4276	456	qEXWFLwvzmhOGhN.exe	97

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	qEXWFLwvzmhOGhN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qEXWFLwvzmhOGhN.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4276	qEXWFLwvzmhOGhN.exe
4276	qEXWFLwvzmhOGhN.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4276	qEXWFLwvzmhOGhN.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4276	qEXWFLwvzmhOGhN.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 456 wrote to memory of 4276	456	qEXWFLwvzmhOGhN.exe	97
PID 456 wrote to memory of 4276	456	qEXWFLwvzmhOGhN.exe	97
PID 456 wrote to memory of 4276	456	qEXWFLwvzmhOGhN.exe	97
PID 456 wrote to memory of 4276	456	qEXWFLwvzmhOGhN.exe	97
PID 456 wrote to memory of 4276	456	qEXWFLwvzmhOGhN.exe	97
PID 456 wrote to memory of 4276	456	qEXWFLwvzmhOGhN.exe	97
PID 456 wrote to memory of 4276	456	qEXWFLwvzmhOGhN.exe	97
PID 456 wrote to memory of 4276	456	qEXWFLwvzmhOGhN.exe	97

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	qEXWFLwvzmhOGhN.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	qEXWFLwvzmhOGhN.exe

C:\Users\Admin\AppData\Local\Temp\qEXWFLwvzmhOGhN.exe
"C:\Users\Admin\AppData\Local\Temp\qEXWFLwvzmhOGhN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:456
- C:\Users\Admin\AppData\Local\Temp\qEXWFLwvzmhOGhN.exe
  "C:\Users\Admin\AppData\Local\Temp\qEXWFLwvzmhOGhN.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:4276

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\qEXWFLwvzmhOGhN.exe.log

Filesize
1KB

MD5
17573558c4e714f606f997e5157afaac

SHA1
13e16e9415ceef429aaf124139671ebeca09ed23

SHA256
c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

SHA512
f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

Download Submit
memory/456-12-0x0000000005770000-0x0000000005776000-memory.dmp

Filesize
24KB

Download
memory/456-18-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download
memory/456-11-0x0000000006B40000-0x0000000006B9E000-memory.dmp

Filesize
376KB

Download
memory/456-4-0x00000000051D0000-0x0000000005262000-memory.dmp

Filesize
584KB

Download
memory/456-6-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download
memory/456-5-0x0000000005100000-0x000000000510A000-memory.dmp

Filesize
40KB

Download
memory/456-7-0x0000000005410000-0x0000000005466000-memory.dmp

Filesize
344KB

Download
memory/456-8-0x00000000054B0000-0x00000000054C8000-memory.dmp

Filesize
96KB

Download
memory/456-9-0x000000007499E000-0x000000007499F000-memory.dmp

Filesize
4KB

Download
memory/456-13-0x0000000006BA0000-0x0000000006BE0000-memory.dmp

Filesize
256KB

Download
memory/456-3-0x0000000005780000-0x0000000005D24000-memory.dmp

Filesize
5.6MB

Download
memory/456-0-0x000000007499E000-0x000000007499F000-memory.dmp

Filesize
4KB

Download
memory/456-10-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download
memory/456-2-0x0000000005130000-0x00000000051CC000-memory.dmp

Filesize
624KB

Download
memory/456-1-0x0000000000580000-0x0000000000702000-memory.dmp

Filesize
1.5MB

Download
memory/4276-17-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download
memory/4276-14-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4276-19-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download
memory/4276-20-0x0000000005AC0000-0x0000000005AD8000-memory.dmp

Filesize
96KB

Download
memory/4276-21-0x0000000006560000-0x00000000065C6000-memory.dmp

Filesize
408KB

Download
memory/4276-22-0x0000000006CB0000-0x0000000006D00000-memory.dmp

Filesize
320KB

Download
memory/4276-23-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download
memory/4276-24-0x0000000074990000-0x0000000075140000-memory.dmp

Filesize
7.7MB

Download

Analysis

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