agenttesla | 76e7187725b81d9f6d7861de278eec7ca788c8a7f35cbe29d2e23a274550e58e

General

Target

BdRdalcppw_o.js
Size

386KB
MD5

5b6888d645abc20b14b8f7668e0f2af3
SHA1

6aa46e2bdc1904b8ca175e9589f4a1f6caa44d53
SHA256

76e7187725b81d9f6d7861de278eec7ca788c8a7f35cbe29d2e23a274550e58e
SHA512

c1495c3e975375729186636055eeb7dd399b2321521513d559861f69a5779cc45ba244b7f124909f71852645bf7c072804662220e4daa2950a90877ad752cd5e

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
4	956	wscript.exe
7	956	wscript.exe
8	956	wscript.exe
10	956	wscript.exe
12	956	wscript.exe
13	956	wscript.exe
15	956	wscript.exe
16	956	wscript.exe
17	956	wscript.exe
19	956	wscript.exe
20	956	wscript.exe
21	956	wscript.exe
23	956	wscript.exe
24	956	wscript.exe
25	956	wscript.exe
27	956	wscript.exe

Executes dropped EXE 1 IoCs

Processes:

ori40teleevery.exe

pid process

1708 ori40teleevery.exe

pid	process
1708	ori40teleevery.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\qsEkACubax.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\qsEkACubax.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-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ori40teleevery.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	ori40teleevery.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\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
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run\YVBPFHTJIQ = "\"C:\\Users\\Admin\\AppData\\Roaming\\qsEkACubax.js\""	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

1708 ori40teleevery.exe
1708 ori40teleevery.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

ori40teleevery.exe

description pid process

Token: SeDebugPrivilege 1708 ori40teleevery.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

ori40teleevery.exe

pid process

1708 ori40teleevery.exe

pid	process
1708	ori40teleevery.exe
1708	ori40teleevery.exe

description	pid	process
Token: SeDebugPrivilege	1708	ori40teleevery.exe

pid	process
1708	ori40teleevery.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 1052 wrote to memory of 956	1052	wscript.exe	wscript.exe
PID 1052 wrote to memory of 956	1052	wscript.exe	wscript.exe
PID 1052 wrote to memory of 956	1052	wscript.exe	wscript.exe
PID 1052 wrote to memory of 1708	1052	wscript.exe	ori40teleevery.exe
PID 1052 wrote to memory of 1708	1052	wscript.exe	ori40teleevery.exe
PID 1052 wrote to memory of 1708	1052	wscript.exe	ori40teleevery.exe
PID 1052 wrote to memory of 1708	1052	wscript.exe	ori40teleevery.exe

outlook_office_path 1 IoCs

Processes:

ori40teleevery.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\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-1-5-21-2277218442-1199762539-2004043321-1000\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\BdRdalcppw_o.js
1⤵
- Suspicious use of WriteProcessMemory
PID:1052

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\qsEkACubax.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:956

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:1708

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

System Information Discovery

1

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\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\qsEkACubax.js
Filesize
5KB

MD5
78e077419deb82f985e813d45f3dba58

SHA1
f7857529c72a32269b9382f1498cde8bb04a4f96

SHA256
3e4fd6d91e1764a7fd15eae511b4b349abc30c58923f4ef0d13c3e96b419fde3

SHA512
b2973542b34c26c161472dc903f51ea21d41371f54f4744ba885bbc70b28f81a8201bc2d6fabaa051f69c5264783b2a9efa0b73eedbf20711e74aac6202f5635

Download Submit
memory/956-55-0x0000000000000000-mapping.dmp

Download
memory/1052-54-0x000007FEFC5C1000-0x000007FEFC5C3000-memory.dmp

Filesize
8KB

Download
memory/1708-57-0x0000000000000000-mapping.dmp

Download
memory/1708-60-0x0000000000C40000-0x0000000000C7A000-memory.dmp

Filesize
232KB

Download
memory/1708-62-0x0000000076C81000-0x0000000076C83000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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