agenttesla | 5780663f3e32e0308caa2cc657ccdcaadf393f22d2c1c3c1f5afa9f55aa136bb

Analysis

max time kernel
114s
max time network
116s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
15-06-2023 21:11

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General

Target

OSTOTILAUSPYYNTÖ _0932.exe
Size

6KB
MD5

8402ed726c49025989f98d23ce9d7e3e
SHA1

e5784d2999ab073773b65e7d3a10ab2bb3460ff0
SHA256

5780663f3e32e0308caa2cc657ccdcaadf393f22d2c1c3c1f5afa9f55aa136bb
SHA512

208fdd79dd0ff0a61a0dccc80ea718b6f6ef18151104d3d74753035e7ed2844facc07df1605af42dfbb6631971eff6e5ec4cecbbe42f93bef0e3c75d5c942ebc
SSDEEP

96:gzTFJVQ7mAK9KgeRZskYuIH7dYYyWwRkvPzNt:gHa7m79ETSuIH7dYYyYR

Score

10^/10

agenttesla purecrypter collection downloader keylogger loader persistence spyware stealer trojan

Malware Config

Extracted

Family

purecrypter

https://files.catbox.moe/6dlgj3.mp4

Extracted

Family

agenttesla

https://api.telegram.org/bot2100759405:AAFzA0s7LpNOhvzQJo2bUlDpzSqnB8ir69o/

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
loader downloader purecrypter
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-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OSTOTILAUSPYYNTÖ _0932.exe
Key opened	\REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OSTOTILAUSPYYNTÖ _0932.exe
Key opened	\REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OSTOTILAUSPYYNTÖ _0932.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-1-5-21-2548970870-3691742953-3895070203-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Jwjfonzfp = "\"C:\\Users\\Admin\\AppData\\Roaming\\Jwjfonzfp.exe\""	OSTOTILAUSPYYNTÖ _0932.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
29	api.ipify.org
30	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4268 set thread context of 4976	4268	OSTOTILAUSPYYNTÖ _0932.exe	85

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4976	OSTOTILAUSPYYNTÖ _0932.exe
4976	OSTOTILAUSPYYNTÖ _0932.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4268	OSTOTILAUSPYYNTÖ _0932.exe
Token: SeDebugPrivilege	4976	OSTOTILAUSPYYNTÖ _0932.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4268 wrote to memory of 4976	4268	OSTOTILAUSPYYNTÖ _0932.exe	85
PID 4268 wrote to memory of 4976	4268	OSTOTILAUSPYYNTÖ _0932.exe	85
PID 4268 wrote to memory of 4976	4268	OSTOTILAUSPYYNTÖ _0932.exe	85
PID 4268 wrote to memory of 4976	4268	OSTOTILAUSPYYNTÖ _0932.exe	85
PID 4268 wrote to memory of 4976	4268	OSTOTILAUSPYYNTÖ _0932.exe	85
PID 4268 wrote to memory of 4976	4268	OSTOTILAUSPYYNTÖ _0932.exe	85
PID 4268 wrote to memory of 4976	4268	OSTOTILAUSPYYNTÖ _0932.exe	85
PID 4268 wrote to memory of 4976	4268	OSTOTILAUSPYYNTÖ _0932.exe	85

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OSTOTILAUSPYYNTÖ _0932.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	OSTOTILAUSPYYNTÖ _0932.exe

C:\Users\Admin\AppData\Local\Temp\OSTOTILAUSPYYNTÖ _0932.exe
"C:\Users\Admin\AppData\Local\Temp\OSTOTILAUSPYYNTÖ _0932.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4268
- C:\Users\Admin\AppData\Local\Temp\OSTOTILAUSPYYNTÖ _0932.exe
  "C:\Users\Admin\AppData\Local\Temp\OSTOTILAUSPYYNTÖ _0932.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4976

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\OSTOTILAUSPYYNTÖ _0932.exe.log

Filesize
1KB

MD5
f3eb81974dc5933681e933f07209ff5f

SHA1
7af8cae0f1d03e82daaf784df9886705685baac7

SHA256
e82069884dd428bd6a1c67fe00c5fa56f9c4d62b538b694694a699588f1f4ab2

SHA512
d9aa3871dffb76c8a73a7940fa03bbc9b65cf575cbd07f7c1fbf490cb0f3d670415eaef0bf79e34689f61ab3cdfbb104efdef004becc12e54b501f02f948aaff

Download Submit
memory/4268-172-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-137-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-136-0x0000000005EF0000-0x0000000005F82000-memory.dmp

Filesize
584KB

Download
memory/4268-133-0x00000000001A0000-0x00000000001A8000-memory.dmp

Filesize
32KB

Download
memory/4268-138-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-140-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-142-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-144-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-146-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-148-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-170-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-152-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-174-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-156-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-158-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-160-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-162-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-164-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-166-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-168-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-150-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-135-0x0000000006400000-0x00000000069A4000-memory.dmp

Filesize
5.6MB

Download
memory/4268-154-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-178-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-176-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-180-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-182-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-184-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-186-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-188-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-190-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-192-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-194-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-196-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-198-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-200-0x0000000005DA0000-0x0000000005E4F000-memory.dmp

Filesize
700KB

Download
memory/4268-134-0x0000000004A40000-0x0000000004A50000-memory.dmp

Filesize
64KB

Download
memory/4976-1063-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/4976-1064-0x0000000005590000-0x00000000055F6000-memory.dmp

Filesize
408KB

Download
memory/4976-1065-0x00000000056A0000-0x00000000056B0000-memory.dmp

Filesize
64KB

Download
memory/4976-1066-0x0000000006BB0000-0x0000000006C00000-memory.dmp

Filesize
320KB

Download
memory/4976-1067-0x0000000006DD0000-0x0000000006F92000-memory.dmp

Filesize
1.8MB

Download
memory/4976-1068-0x0000000006C40000-0x0000000006C4A000-memory.dmp

Filesize
40KB

Download
memory/4976-1069-0x00000000056A0000-0x00000000056B0000-memory.dmp

Filesize
64KB

Download