agenttesla | 6fffdb0f9112620a18f6d14d61278604c34d146d12ea35c6c74c25334c1b4050

General

Target

VITAGNUS&WFertile-pdf.js
Size

403KB
MD5

7272402a2ef92ef6bf71eb405ef6c280
SHA1

cbf28a75031b4e1b2f6558f251dfa804828114b3
SHA256

5e62115210aca24f0b78d0b226feed0c79cf2c0cf9ca2be73244adfea70fd09d
SHA512

f9192f5b89c81bcbd8d00401eb86b7960fa88916a90e614309b72388946cb5a516fda1f84d0712ab01cd01d9fe614c425ed1069305cece565e9df7c3e1221954
SSDEEP

6144:lvcm0ZNr1SOFJkUVGsEIuszjfvwLG6IHEC6k1n5ZLsEDiAP9tXyzzX:hc7N5F6Uosju2wLG7mE5P96

Score

10^/10

agenttesla vjw0rm collection keylogger persistence spyware stealer trojan worm

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
server240.web-hosting.com
Port:
587
Username:
[email protected]
Password:
Success4sure2day10@

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
server240.web-hosting.com
Port:
587
Username:
[email protected]
Password:
Success4sure2day10@
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm

Blocklisted process makes network request 16 IoCs

flow	pid	Process
7	3916	wscript.exe
16	3916	wscript.exe
24	3916	wscript.exe
26	3916	wscript.exe
37	3916	wscript.exe
38	3916	wscript.exe
41	3916	wscript.exe
42	3916	wscript.exe
43	3916	wscript.exe
44	3916	wscript.exe
45	3916	wscript.exe
46	3916	wscript.exe
47	3916	wscript.exe
48	3916	wscript.exe
49	3916	wscript.exe
50	3916	wscript.exe

Executes dropped EXE 1 IoCs

pid	Process
3648	anew4FUDcrypt.exe

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-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\epgFTIJXaC.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\epgFTIJXaC.js	wscript.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-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	anew4FUDcrypt.exe
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	anew4FUDcrypt.exe
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	anew4FUDcrypt.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-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\audio_dg = "C:\\Users\\Admin\\AppData\\Roaming\\audio_dg\\audio_dg.exe"	anew4FUDcrypt.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
14	api.ipify.org
15	api.ipify.org

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 3 IoCs

pid	Process
3648	anew4FUDcrypt.exe
3648	anew4FUDcrypt.exe
3648	anew4FUDcrypt.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3648	anew4FUDcrypt.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3648	anew4FUDcrypt.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4780 wrote to memory of 3916	4780	wscript.exe	81
PID 4780 wrote to memory of 3916	4780	wscript.exe	81
PID 4780 wrote to memory of 3648	4780	wscript.exe	82
PID 4780 wrote to memory of 3648	4780	wscript.exe	82
PID 4780 wrote to memory of 3648	4780	wscript.exe	82

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	anew4FUDcrypt.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	anew4FUDcrypt.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\VITAGNUS&WFertile-pdf.js
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4780
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\epgFTIJXaC.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  PID:3916
- C:\Users\Admin\AppData\Local\Temp\anew4FUDcrypt.exe
  "C:\Users\Admin\AppData\Local\Temp\anew4FUDcrypt.exe"
  2⤵
  - Executes dropped EXE
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:3648

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\anew4FUDcrypt.exe

Filesize
218KB

MD5
d38c08505b96562261c3920265bb4f97

SHA1
7b7bb2838e3e04d412fdde726b351ac0a6eaba80

SHA256
83a0e9ffbf7ec5895ec2062597c34e6e88cc48a608896e2722b78677e2e04ea9

SHA512
9eac7bb3dac64db0aa5c90d6609545fb1b2c07b7721c01046db11742e4097e9c6b842dadd9e97627e6f9df73abe98494e2616467a339051fc9cf8fc00df0b4d8

Download Submit
C:\Users\Admin\AppData\Local\Temp\anew4FUDcrypt.exe

Filesize
218KB

MD5
d38c08505b96562261c3920265bb4f97

SHA1
7b7bb2838e3e04d412fdde726b351ac0a6eaba80

SHA256
83a0e9ffbf7ec5895ec2062597c34e6e88cc48a608896e2722b78677e2e04ea9

SHA512
9eac7bb3dac64db0aa5c90d6609545fb1b2c07b7721c01046db11742e4097e9c6b842dadd9e97627e6f9df73abe98494e2616467a339051fc9cf8fc00df0b4d8

Download Submit
C:\Users\Admin\AppData\Roaming\epgFTIJXaC.js

Filesize
6KB

MD5
a018f69c2cd007176e091fa7e7565548

SHA1
e2ad56df4011261282dbbf0046660e16f4107456

SHA256
e7ce7b8f29dcade4dd05a22084db8cc886924a3cc769c90eda67c2b2916a5c93

SHA512
8b3c0e611456db5126f9331b7219733735fa5ac5255b8d5cb04a440598f89e40ee2707d3282b9f2f286bbc1fc18859777c3fe701d0fee3a02154889a23c8d468

Download Submit
memory/3648-137-0x0000000000060000-0x000000000009C000-memory.dmp

Filesize
240KB

Download
memory/3648-138-0x0000000004F50000-0x00000000054F4000-memory.dmp

Filesize
5.6MB

Download
memory/3648-139-0x0000000004A80000-0x0000000004B1C000-memory.dmp

Filesize
624KB

Download
memory/3648-140-0x0000000005740000-0x00000000057A6000-memory.dmp

Filesize
408KB

Download
memory/3648-141-0x00000000061E0000-0x0000000006230000-memory.dmp

Filesize
320KB

Download
memory/3648-142-0x00000000063D0000-0x0000000006462000-memory.dmp

Filesize
584KB

Download
memory/3648-143-0x0000000006700000-0x000000000670A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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