agenttesla | f367ab08d8884ebda2ca7101fa509d1216f66c9e788d1b729ce605959f2f57ca

General

Target

fda.exe
Size

909KB
MD5

9988685bdb69c34939c270df2eff6d47
SHA1

b4aa67fe963f14a8ac6220d8953960a86d7bcdd1
SHA256

f367ab08d8884ebda2ca7101fa509d1216f66c9e788d1b729ce605959f2f57ca
SHA512

c535fec6cffebc266858e46d6ef8b6405a2ac9e50d946d40faf64131eb866611d32b1d9906c70923f075d00e2e88c74afb284d198277c4ef0abaaa24ff9ded7b

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.vivaldi.net
Port:
587
Username:
faithkingsley@vivaldi.net
Password:
kingsofkings123

Signatures

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

AgentTesla Payload 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2112-126-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/2112-127-0x000000000043782E-mapping.dmp	family_agenttesla
behavioral2/memory/2112-132-0x0000000004DB0000-0x00000000052AE000-memory.dmp	family_agenttesla
behavioral2/memory/2112-137-0x0000000004DB0000-0x00000000052AE000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

RegSvcs.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

RegSvcs.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\DLxES = "C:\\Users\\Admin\\AppData\\Roaming\\DLxES\\DLxES.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

fda.exe

description pid process target process

PID 656 set thread context of 2112 656 fda.exe RegSvcs.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1868 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

fda.exeRegSvcs.exe

pid process

656 fda.exe
2112 RegSvcs.exe
2112 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

fda.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 656 fda.exe
Token: SeDebugPrivilege 2112 RegSvcs.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegSvcs.exe

pid process

2112 RegSvcs.exe

description	pid	process	target process
PID 656 set thread context of 2112	656	fda.exe	RegSvcs.exe

pid	process
1868	schtasks.exe

pid	process
656	fda.exe
2112	RegSvcs.exe
2112	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	656	fda.exe
Token: SeDebugPrivilege	2112	RegSvcs.exe

pid	process
2112	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

fda.exe

description	pid	process	target process
PID 656 wrote to memory of 1868	656	fda.exe	schtasks.exe
PID 656 wrote to memory of 1868	656	fda.exe	schtasks.exe
PID 656 wrote to memory of 1868	656	fda.exe	schtasks.exe
PID 656 wrote to memory of 2112	656	fda.exe	RegSvcs.exe
PID 656 wrote to memory of 2112	656	fda.exe	RegSvcs.exe
PID 656 wrote to memory of 2112	656	fda.exe	RegSvcs.exe
PID 656 wrote to memory of 2112	656	fda.exe	RegSvcs.exe
PID 656 wrote to memory of 2112	656	fda.exe	RegSvcs.exe
PID 656 wrote to memory of 2112	656	fda.exe	RegSvcs.exe
PID 656 wrote to memory of 2112	656	fda.exe	RegSvcs.exe
PID 656 wrote to memory of 2112	656	fda.exe	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\fda.exe
"C:\Users\Admin\AppData\Local\Temp\fda.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:656

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XwsFwyhNyFwyE" /XML "C:\Users\Admin\AppData\Local\Temp\tmp34DC.tmp"
2⤵
- Creates scheduled task(s)
PID:1868

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2112

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp34DC.tmp
MD5
153e86c8b27e44232359812a3e52cbb4

SHA1
f5d8430fbffd44992228740e4a857f4ae20cb947

SHA256
6475d0d31ec237b57c756796ab0a1cefe53279de62fa80bc069719dcce17c248

SHA512
d6ff85c1424d12f384df870629a72a8c75600110adb8a71d5bc1e9a80fab2b94370c67a5186f7a035755413876d723e07a4abe92db2bb501460d8e8b3b94aa13

Download Submit
memory/656-123-0x0000000007600000-0x0000000007672000-memory.dmp

Filesize
456KB

Download
memory/656-116-0x00000000056C0000-0x00000000056C1000-memory.dmp

Filesize
4KB

Download
memory/656-118-0x00000000051C0000-0x00000000056BE000-memory.dmp

Filesize
5.0MB

Download
memory/656-119-0x00000000051F0000-0x00000000051F1000-memory.dmp

Filesize
4KB

Download
memory/656-114-0x00000000008C0000-0x00000000008C1000-memory.dmp

Filesize
4KB

Download
memory/656-121-0x00000000056A0000-0x00000000056A2000-memory.dmp

Filesize
8KB

Download
memory/656-117-0x0000000005260000-0x0000000005261000-memory.dmp

Filesize
4KB

Download
memory/656-122-0x0000000007470000-0x0000000007526000-memory.dmp

Filesize
728KB

Download
memory/656-120-0x0000000007840000-0x0000000007841000-memory.dmp

Filesize
4KB

Download
memory/1868-124-0x0000000000000000-mapping.dmp

Download
memory/2112-126-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2112-127-0x000000000043782E-mapping.dmp

Download
memory/2112-132-0x0000000004DB0000-0x00000000052AE000-memory.dmp

Filesize
5.0MB

Download
memory/2112-133-0x0000000004F70000-0x0000000004F71000-memory.dmp

Filesize
4KB

Download
memory/2112-134-0x0000000005B10000-0x0000000005B11000-memory.dmp

Filesize
4KB

Download
memory/2112-137-0x0000000004DB0000-0x00000000052AE000-memory.dmp

Filesize
5.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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