agenttesla | 7f78b92c25a0a395ae7ed636110e169a99a64604262fb98a55df09d8bdc68ec8

General

Target

4y1k7snP7le2PkK.exe
Size

431KB
MD5

b79c0f74126ea29b1a889182759ca168
SHA1

abcf4f42e922ad538f0f8cca8307505a4ef0a3ac
SHA256

db120792b5ad5e3f9bd864097f9f55c20c3852b680f53056f172fd3319906d13
SHA512

d9215141cf3514aff9e5aef370f69b9eecb2cc08d3192ca45f12918f94fdcea42907104ef39d692db6bf866edca1e6448dbb6956d0b053db7e6ced9ad650933f
SSDEEP

6144:G1oD6+5QT0cHWwha+HOdmkKMl2RUqfr5B1MWR9Ozj2FZO/EKwEjMLNrLQS/:G1BFWzdmk2xMWR9OzCFZOZw43a

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.upgcambodia.com
Port:
587
Username:
[email protected]
Password:
stock3168

Signatures

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

AgentTesla payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4868-11-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

4y1k7snP7le2PkK.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts 4y1k7snP7le2PkK.exe
Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
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
T1552.001
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
T1552.001
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
T1552.001

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	4y1k7snP7le2PkK.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

4y1k7snP7le2PkK.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4y1k7snP7le2PkK.exe
Key opened	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4y1k7snP7le2PkK.exe
Key opened	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4y1k7snP7le2PkK.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

4y1k7snP7le2PkK.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NXLun = "C:\\Users\\Admin\\AppData\\Roaming\\NXLun\\NXLun.exe"	4y1k7snP7le2PkK.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

4y1k7snP7le2PkK.exe

description pid process target process

PID 4068 set thread context of 4868 4068 4y1k7snP7le2PkK.exe 4y1k7snP7le2PkK.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

4y1k7snP7le2PkK.exe4y1k7snP7le2PkK.exe

pid process

4068 4y1k7snP7le2PkK.exe
4068 4y1k7snP7le2PkK.exe
4068 4y1k7snP7le2PkK.exe
4868 4y1k7snP7le2PkK.exe
4868 4y1k7snP7le2PkK.exe
4868 4y1k7snP7le2PkK.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

4y1k7snP7le2PkK.exe4y1k7snP7le2PkK.exe

description pid process

Token: SeDebugPrivilege 4068 4y1k7snP7le2PkK.exe
Token: SeDebugPrivilege 4868 4y1k7snP7le2PkK.exe

description	pid	process	target process
PID 4068 set thread context of 4868	4068	4y1k7snP7le2PkK.exe	4y1k7snP7le2PkK.exe

pid	process
4068	4y1k7snP7le2PkK.exe
4068	4y1k7snP7le2PkK.exe
4068	4y1k7snP7le2PkK.exe
4868	4y1k7snP7le2PkK.exe
4868	4y1k7snP7le2PkK.exe
4868	4y1k7snP7le2PkK.exe

description	pid	process
Token: SeDebugPrivilege	4068	4y1k7snP7le2PkK.exe
Token: SeDebugPrivilege	4868	4y1k7snP7le2PkK.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

4y1k7snP7le2PkK.exe

description	pid	process	target process
PID 4068 wrote to memory of 4868	4068	4y1k7snP7le2PkK.exe	4y1k7snP7le2PkK.exe
PID 4068 wrote to memory of 4868	4068	4y1k7snP7le2PkK.exe	4y1k7snP7le2PkK.exe
PID 4068 wrote to memory of 4868	4068	4y1k7snP7le2PkK.exe	4y1k7snP7le2PkK.exe
PID 4068 wrote to memory of 4868	4068	4y1k7snP7le2PkK.exe	4y1k7snP7le2PkK.exe
PID 4068 wrote to memory of 4868	4068	4y1k7snP7le2PkK.exe	4y1k7snP7le2PkK.exe
PID 4068 wrote to memory of 4868	4068	4y1k7snP7le2PkK.exe	4y1k7snP7le2PkK.exe
PID 4068 wrote to memory of 4868	4068	4y1k7snP7le2PkK.exe	4y1k7snP7le2PkK.exe
PID 4068 wrote to memory of 4868	4068	4y1k7snP7le2PkK.exe	4y1k7snP7le2PkK.exe

outlook_office_path 1 IoCs

Processes:

4y1k7snP7le2PkK.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4y1k7snP7le2PkK.exe

outlook_win_path 1 IoCs

Processes:

4y1k7snP7le2PkK.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4y1k7snP7le2PkK.exe

C:\Users\Admin\AppData\Local\Temp\4y1k7snP7le2PkK.exe
"C:\Users\Admin\AppData\Local\Temp\4y1k7snP7le2PkK.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4068

C:\Users\Admin\AppData\Local\Temp\4y1k7snP7le2PkK.exe
"C:\Users\Admin\AppData\Local\Temp\4y1k7snP7le2PkK.exe"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4868

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4984 --field-trial-handle=2232,i,3915538061666887171,15629965885515244134,262144 --variations-seed-version /prefetch:8
1⤵
PID:2432

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

Lateral Movement

Collection

Data from Local System

4

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\4y1k7snP7le2PkK.exe.log
Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/4068-10-0x0000000008080000-0x00000000080E0000-memory.dmp

Filesize
384KB

Download
memory/4068-3-0x00000000054B0000-0x0000000005542000-memory.dmp

Filesize
584KB

Download
memory/4068-1-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/4068-4-0x0000000005470000-0x0000000005480000-memory.dmp

Filesize
64KB

Download
memory/4068-5-0x0000000005640000-0x000000000564A000-memory.dmp

Filesize
40KB

Download
memory/4068-6-0x0000000005A50000-0x0000000005A5E000-memory.dmp

Filesize
56KB

Download
memory/4068-7-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/4068-8-0x0000000005470000-0x0000000005480000-memory.dmp

Filesize
64KB

Download
memory/4068-14-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/4068-0-0x0000000000A20000-0x0000000000A92000-memory.dmp

Filesize
456KB

Download
memory/4068-9-0x0000000007F80000-0x000000000801C000-memory.dmp

Filesize
624KB

Download
memory/4068-2-0x0000000005A60000-0x0000000006004000-memory.dmp

Filesize
5.6MB

Download
memory/4868-25-0x00000000053C0000-0x00000000053D0000-memory.dmp

Filesize
64KB

Download
memory/4868-15-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/4868-16-0x00000000053C0000-0x00000000053D0000-memory.dmp

Filesize
64KB

Download
memory/4868-17-0x0000000005600000-0x0000000005618000-memory.dmp

Filesize
96KB

Download
memory/4868-18-0x0000000006270000-0x00000000062D6000-memory.dmp

Filesize
408KB

Download
memory/4868-20-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/4868-21-0x00000000053C0000-0x00000000053D0000-memory.dmp

Filesize
64KB

Download
memory/4868-23-0x0000000005250000-0x00000000052A0000-memory.dmp

Filesize
320KB

Download
memory/4868-24-0x00000000053C0000-0x00000000053D0000-memory.dmp

Filesize
64KB

Download
memory/4868-11-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads