agenttesla | 87e59c9688182f1292e492e79d2298f1abaf9d4dc3204f20ba1f1ec39908d5ba

General

Target

0b38beeaa74c58cb3a4520dacb146db5.exe
Size

967KB
MD5

0b38beeaa74c58cb3a4520dacb146db5
SHA1

8a89e1cf58904686256e7bd4ef69fd9abfca443d
SHA256

87e59c9688182f1292e492e79d2298f1abaf9d4dc3204f20ba1f1ec39908d5ba
SHA512

a33cadb98a9bc234bbf32937b616ce878d7f490351569c03cec227c82e3717afe6127acbe89cb9b25db4f9ac5460e9058564b045c925b218b1e69925fcfab507
SSDEEP

12288:QRQEemYEsAahN/X4QXHvuNgZQVcQAS+9IMqbBbGbwWlZtxF6rGQVPnvQ7zqhgKZK:Qtsd/Z+/KaowHAv7EfxhZZI2F

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.humanpower.vn
Port:
587
Username:
[email protected]
Password:
xlA}CL.(Jj8C
Email To:
[email protected]

Signatures

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	0b38beeaa74c58cb3a4520dacb146db5.exe

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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0b38beeaa74c58cb3a4520dacb146db5.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0b38beeaa74c58cb3a4520dacb146db5.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0b38beeaa74c58cb3a4520dacb146db5.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Ryjtppsu = "\"C:\\Users\\Admin\\AppData\\Roaming\\Ulrfeummho\\Ryjtppsu.exe\""	0b38beeaa74c58cb3a4520dacb146db5.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
40	api.ipify.org
39	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4436 set thread context of 3948	4436	0b38beeaa74c58cb3a4520dacb146db5.exe	92

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1084	powershell.exe
1084	powershell.exe
4436	0b38beeaa74c58cb3a4520dacb146db5.exe
4436	0b38beeaa74c58cb3a4520dacb146db5.exe
4436	0b38beeaa74c58cb3a4520dacb146db5.exe
4436	0b38beeaa74c58cb3a4520dacb146db5.exe
4436	0b38beeaa74c58cb3a4520dacb146db5.exe
4436	0b38beeaa74c58cb3a4520dacb146db5.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4436	0b38beeaa74c58cb3a4520dacb146db5.exe
Token: SeDebugPrivilege	1084	powershell.exe
Token: SeDebugPrivilege	3948	0b38beeaa74c58cb3a4520dacb146db5.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4436 wrote to memory of 1084	4436	0b38beeaa74c58cb3a4520dacb146db5.exe	79
PID 4436 wrote to memory of 1084	4436	0b38beeaa74c58cb3a4520dacb146db5.exe	79
PID 4436 wrote to memory of 1084	4436	0b38beeaa74c58cb3a4520dacb146db5.exe	79
PID 4436 wrote to memory of 4316	4436	0b38beeaa74c58cb3a4520dacb146db5.exe	89
PID 4436 wrote to memory of 4316	4436	0b38beeaa74c58cb3a4520dacb146db5.exe	89
PID 4436 wrote to memory of 4316	4436	0b38beeaa74c58cb3a4520dacb146db5.exe	89
PID 4436 wrote to memory of 4524	4436	0b38beeaa74c58cb3a4520dacb146db5.exe	90
PID 4436 wrote to memory of 4524	4436	0b38beeaa74c58cb3a4520dacb146db5.exe	90
PID 4436 wrote to memory of 4524	4436	0b38beeaa74c58cb3a4520dacb146db5.exe	90
PID 4436 wrote to memory of 4652	4436	0b38beeaa74c58cb3a4520dacb146db5.exe	91
PID 4436 wrote to memory of 4652	4436	0b38beeaa74c58cb3a4520dacb146db5.exe	91
PID 4436 wrote to memory of 4652	4436	0b38beeaa74c58cb3a4520dacb146db5.exe	91
PID 4436 wrote to memory of 3948	4436	0b38beeaa74c58cb3a4520dacb146db5.exe	92
PID 4436 wrote to memory of 3948	4436	0b38beeaa74c58cb3a4520dacb146db5.exe	92
PID 4436 wrote to memory of 3948	4436	0b38beeaa74c58cb3a4520dacb146db5.exe	92
PID 4436 wrote to memory of 3948	4436	0b38beeaa74c58cb3a4520dacb146db5.exe	92
PID 4436 wrote to memory of 3948	4436	0b38beeaa74c58cb3a4520dacb146db5.exe	92
PID 4436 wrote to memory of 3948	4436	0b38beeaa74c58cb3a4520dacb146db5.exe	92
PID 4436 wrote to memory of 3948	4436	0b38beeaa74c58cb3a4520dacb146db5.exe	92
PID 4436 wrote to memory of 3948	4436	0b38beeaa74c58cb3a4520dacb146db5.exe	92

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0b38beeaa74c58cb3a4520dacb146db5.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0b38beeaa74c58cb3a4520dacb146db5.exe

C:\Users\Admin\AppData\Local\Temp\0b38beeaa74c58cb3a4520dacb146db5.exe
"C:\Users\Admin\AppData\Local\Temp\0b38beeaa74c58cb3a4520dacb146db5.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4436
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1084
- C:\Users\Admin\AppData\Local\Temp\0b38beeaa74c58cb3a4520dacb146db5.exe
  C:\Users\Admin\AppData\Local\Temp\0b38beeaa74c58cb3a4520dacb146db5.exe
  2⤵
  PID:4316
- C:\Users\Admin\AppData\Local\Temp\0b38beeaa74c58cb3a4520dacb146db5.exe
  C:\Users\Admin\AppData\Local\Temp\0b38beeaa74c58cb3a4520dacb146db5.exe
  2⤵
  PID:4524
- C:\Users\Admin\AppData\Local\Temp\0b38beeaa74c58cb3a4520dacb146db5.exe
  C:\Users\Admin\AppData\Local\Temp\0b38beeaa74c58cb3a4520dacb146db5.exe
  2⤵
  PID:4652
- C:\Users\Admin\AppData\Local\Temp\0b38beeaa74c58cb3a4520dacb146db5.exe
  C:\Users\Admin\AppData\Local\Temp\0b38beeaa74c58cb3a4520dacb146db5.exe
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3948

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

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\0b38beeaa74c58cb3a4520dacb146db5.exe.log

Filesize
1KB

MD5
5324937a72a02d6b592fa63563d4d0f4

SHA1
f1469488df30acc0d50e5d3e946e2fac22da7d09

SHA256
9f5f74e9612763c4b05931218f87cc5fea2973afdd6deeedf6f937cad2f25139

SHA512
45fb951cca34a785b4ca8db23dfae9b2e0213e232b98befd4a2cdf34cebe15895a8f6c5c389e47e523681a32be1340aa217d6992aac9225d235b32da9bc2b7ae

Download Submit
memory/1084-142-0x00000000060F0000-0x000000000610E000-memory.dmp

Filesize
120KB

Download
memory/1084-144-0x00000000065D0000-0x00000000065EA000-memory.dmp

Filesize
104KB

Download
memory/1084-141-0x0000000005980000-0x00000000059E6000-memory.dmp

Filesize
408KB

Download
memory/1084-143-0x0000000007960000-0x0000000007FDA000-memory.dmp

Filesize
6.5MB

Download
memory/1084-137-0x0000000000000000-mapping.dmp

Download
memory/1084-138-0x0000000004BA0000-0x0000000004BD6000-memory.dmp

Filesize
216KB

Download
memory/1084-139-0x0000000005210000-0x0000000005838000-memory.dmp

Filesize
6.2MB

Download
memory/1084-140-0x0000000005910000-0x0000000005976000-memory.dmp

Filesize
408KB

Download
memory/3948-151-0x0000000007100000-0x0000000007150000-memory.dmp

Filesize
320KB

Download
memory/3948-148-0x0000000000000000-mapping.dmp

Download
memory/3948-149-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/4316-145-0x0000000000000000-mapping.dmp

Download
memory/4436-134-0x00000000051A0000-0x0000000005232000-memory.dmp

Filesize
584KB

Download
memory/4436-135-0x0000000005240000-0x000000000524A000-memory.dmp

Filesize
40KB

Download
memory/4436-136-0x0000000006EB0000-0x0000000006ED2000-memory.dmp

Filesize
136KB

Download
memory/4436-133-0x0000000005670000-0x0000000005C14000-memory.dmp

Filesize
5.6MB

Download
memory/4436-132-0x00000000006F0000-0x00000000007E8000-memory.dmp

Filesize
992KB

Download
memory/4524-146-0x0000000000000000-mapping.dmp

Download
memory/4652-147-0x0000000000000000-mapping.dmp

Download

Analysis

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