agenttesla | 34ac6880e8974d521aea21df792f98ea07e4ea0f5d868847e8129e0f6b81b39b

General

Target

iWBFskGDau_ori40teleevery.js
Size

413KB
MD5

4fc2afe00fa6f77bf8c63bf48d04c49c
SHA1

4fe56745ef29fb87e75e05c878da2495a90b878c
SHA256

34ac6880e8974d521aea21df792f98ea07e4ea0f5d868847e8129e0f6b81b39b
SHA512

1de1febdfa9c7e79f5111a494e65c6b50d9db80088201ae83a9d85314a1e0dfbf62a4bfbdd01ec9ff737bd2fadcb35da85a18302f9cd986e758dc05f27ac26e5

Score

10^/10

agenttesla vjw0rm collection keylogger persistence spyware stealer trojan worm

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5171883538:AAEyFWuNh68SJNNpkDCQbviRgrklZA3K4Qs/sendDocument

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

Processes:

wscript.exe

flow	pid	process
5	4064	wscript.exe
13	4064	wscript.exe
22	4064	wscript.exe
30	4064	wscript.exe
34	4064	wscript.exe
35	4064	wscript.exe
38	4064	wscript.exe
42	4064	wscript.exe
43	4064	wscript.exe
44	4064	wscript.exe
47	4064	wscript.exe
48	4064	wscript.exe
49	4064	wscript.exe
50	4064	wscript.exe
51	4064	wscript.exe
52	4064	wscript.exe

Executes dropped EXE 1 IoCs

Processes:

ori40teleevery.exe

pid process

4024 ori40teleevery.exe

pid	process
4024	ori40teleevery.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

Processes:

wscript.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 2 IoCs

Processes:

wscript.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\gESLiqCqdI.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\gESLiqCqdI.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

Processes:

ori40teleevery.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ori40teleevery.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ori40teleevery.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ori40teleevery.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wscript.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\YVBPFHTJIQ = "\"C:\\Users\\Admin\\AppData\\Roaming\\gESLiqCqdI.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe

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 2 IoCs

Processes:

ori40teleevery.exe

pid process

4024 ori40teleevery.exe
4024 ori40teleevery.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

ori40teleevery.exe

description pid process

Token: SeDebugPrivilege 4024 ori40teleevery.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

ori40teleevery.exe

pid process

4024 ori40teleevery.exe

pid	process
4024	ori40teleevery.exe
4024	ori40teleevery.exe

description	pid	process
Token: SeDebugPrivilege	4024	ori40teleevery.exe

pid	process
4024	ori40teleevery.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 2492 wrote to memory of 4064	2492	wscript.exe	wscript.exe
PID 2492 wrote to memory of 4064	2492	wscript.exe	wscript.exe
PID 2492 wrote to memory of 4024	2492	wscript.exe	ori40teleevery.exe
PID 2492 wrote to memory of 4024	2492	wscript.exe	ori40teleevery.exe
PID 2492 wrote to memory of 4024	2492	wscript.exe	ori40teleevery.exe

outlook_office_path 1 IoCs

Processes:

ori40teleevery.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ori40teleevery.exe

outlook_win_path 1 IoCs

Processes:

ori40teleevery.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ori40teleevery.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\iWBFskGDau_ori40teleevery.js
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2492

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\gESLiqCqdI.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:4064

C:\Users\Admin\AppData\Local\Temp\ori40teleevery.exe
"C:\Users\Admin\AppData\Local\Temp\ori40teleevery.exe"
2⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:4024

Network

MITRE ATT&CK Matrix ATT&CK 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

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\ori40teleevery.exe
Filesize
210KB

MD5
e0f80223a94ccf3f36aa16c48514f692

SHA1
73d3bffd145250ce91657c9d4f3f53ca97c716c0

SHA256
a56acb1d690ee4deccb5f33c846f767705d5b0a84b6ee0a77aea30c81aa9da67

SHA512
d5ab5e0cc0399ccc0be06eb8813e4a481d81cd4c222fc7f4553c6f3d1c4b0433a18244626600ab903842da4d6db40e2430c5dcc96ed381b7d4b7f28fd29d6ad5

Download Submit
C:\Users\Admin\AppData\Local\Temp\ori40teleevery.exe
Filesize
210KB

MD5
e0f80223a94ccf3f36aa16c48514f692

SHA1
73d3bffd145250ce91657c9d4f3f53ca97c716c0

SHA256
a56acb1d690ee4deccb5f33c846f767705d5b0a84b6ee0a77aea30c81aa9da67

SHA512
d5ab5e0cc0399ccc0be06eb8813e4a481d81cd4c222fc7f4553c6f3d1c4b0433a18244626600ab903842da4d6db40e2430c5dcc96ed381b7d4b7f28fd29d6ad5

Download Submit
C:\Users\Admin\AppData\Roaming\gESLiqCqdI.js
Filesize
15KB

MD5
f968c7106fa42c287710c1582e45b546

SHA1
f16aaafe731a57b6dc43380d4999609b89e7822c

SHA256
fc71ed12fa0720f87b95ffa02fd0af75ed35edbf43030f91925be94ac20eae62

SHA512
d606121022b748d4da6a50d56114f46857968829de295a3f4d46aa6fba08dbafec0549ba1c798dba1e45e1f9bdafa59165095e729490556408b4ecca49236432

Download Submit
memory/4024-132-0x0000000000000000-mapping.dmp

Download
memory/4024-135-0x0000000000980000-0x00000000009BA000-memory.dmp

Filesize
232KB

Download
memory/4024-136-0x00000000059F0000-0x0000000005F94000-memory.dmp

Filesize
5.6MB

Download
memory/4024-137-0x0000000005440000-0x00000000054DC000-memory.dmp

Filesize
624KB

Download
memory/4024-138-0x0000000005950000-0x00000000059B6000-memory.dmp

Filesize
408KB

Download
memory/4024-139-0x0000000006570000-0x00000000065C0000-memory.dmp

Filesize
320KB

Download
memory/4024-140-0x0000000006E10000-0x0000000006EA2000-memory.dmp

Filesize
584KB

Download
memory/4024-141-0x0000000006DC0000-0x0000000006DCA000-memory.dmp

Filesize
40KB

Download
memory/4064-130-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads