agenttesla | 6ef50d5542a2199a2ab5dd712deb29ffefeb20d5ec2aa36f527b3439c0cfbc5d

General

Target

RFQ 17389 MPR 696.r02.exe
Size

548KB
MD5

808cb6377b0d7766b9a16883f91e1f86
SHA1

2f74de15ebebbbfb1ddececd8c24872326868261
SHA256

3c405db9295ee51b01f0be1e2060538751c82beea8ff6bb40ad8e07815cafe3a
SHA512

16dbb52924932f16d0a3f91eb7ef2a6a1bc45527de685104e125ce9a4f223c2adfe5a0c3f84f3e23d4f8585ac3aeceb82883ae0f84d0554a3979ddc91af09535

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.yitaipackaging.com
Port:
587
Username:
[email protected]
Password:
22799213

Signatures

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

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1636-64-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1636-65-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1636-66-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1636-67-0x00000000004478DE-mapping.dmp	family_agenttesla
behavioral1/memory/1636-69-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1636-71-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

RFQ 17389 MPR 696.r02.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts RFQ 17389 MPR 696.r02.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

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	RFQ 17389 MPR 696.r02.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RFQ 17389 MPR 696.r02.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ 17389 MPR 696.r02.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ 17389 MPR 696.r02.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ 17389 MPR 696.r02.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

RFQ 17389 MPR 696.r02.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows\CurrentVersion\Run\gKWBf = "C:\\Users\\Admin\\AppData\\Roaming\\gKWBf\\gKWBf.exe"	RFQ 17389 MPR 696.r02.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

RFQ 17389 MPR 696.r02.exe

description pid process target process

PID 1856 set thread context of 1636 1856 RFQ 17389 MPR 696.r02.exe RFQ 17389 MPR 696.r02.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

1280 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

1764 REG.exe

description	pid	process	target process
PID 1856 set thread context of 1636	1856	RFQ 17389 MPR 696.r02.exe	RFQ 17389 MPR 696.r02.exe

pid	process
1280	schtasks.exe

pid	process
1764	REG.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

RFQ 17389 MPR 696.r02.exeRFQ 17389 MPR 696.r02.exe

pid	process
1856	RFQ 17389 MPR 696.r02.exe
1856	RFQ 17389 MPR 696.r02.exe
1856	RFQ 17389 MPR 696.r02.exe
1636	RFQ 17389 MPR 696.r02.exe
1636	RFQ 17389 MPR 696.r02.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

RFQ 17389 MPR 696.r02.exeRFQ 17389 MPR 696.r02.exe

description pid process

Token: SeDebugPrivilege 1856 RFQ 17389 MPR 696.r02.exe
Token: SeDebugPrivilege 1636 RFQ 17389 MPR 696.r02.exe

description	pid	process
Token: SeDebugPrivilege	1856	RFQ 17389 MPR 696.r02.exe
Token: SeDebugPrivilege	1636	RFQ 17389 MPR 696.r02.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

RFQ 17389 MPR 696.r02.exeRFQ 17389 MPR 696.r02.exe

description	pid	process	target process
PID 1856 wrote to memory of 1280	1856	RFQ 17389 MPR 696.r02.exe	schtasks.exe
PID 1856 wrote to memory of 1280	1856	RFQ 17389 MPR 696.r02.exe	schtasks.exe
PID 1856 wrote to memory of 1280	1856	RFQ 17389 MPR 696.r02.exe	schtasks.exe
PID 1856 wrote to memory of 1280	1856	RFQ 17389 MPR 696.r02.exe	schtasks.exe
PID 1856 wrote to memory of 1636	1856	RFQ 17389 MPR 696.r02.exe	RFQ 17389 MPR 696.r02.exe
PID 1856 wrote to memory of 1636	1856	RFQ 17389 MPR 696.r02.exe	RFQ 17389 MPR 696.r02.exe
PID 1856 wrote to memory of 1636	1856	RFQ 17389 MPR 696.r02.exe	RFQ 17389 MPR 696.r02.exe
PID 1856 wrote to memory of 1636	1856	RFQ 17389 MPR 696.r02.exe	RFQ 17389 MPR 696.r02.exe
PID 1856 wrote to memory of 1636	1856	RFQ 17389 MPR 696.r02.exe	RFQ 17389 MPR 696.r02.exe
PID 1856 wrote to memory of 1636	1856	RFQ 17389 MPR 696.r02.exe	RFQ 17389 MPR 696.r02.exe
PID 1856 wrote to memory of 1636	1856	RFQ 17389 MPR 696.r02.exe	RFQ 17389 MPR 696.r02.exe
PID 1856 wrote to memory of 1636	1856	RFQ 17389 MPR 696.r02.exe	RFQ 17389 MPR 696.r02.exe
PID 1856 wrote to memory of 1636	1856	RFQ 17389 MPR 696.r02.exe	RFQ 17389 MPR 696.r02.exe
PID 1636 wrote to memory of 1764	1636	RFQ 17389 MPR 696.r02.exe	REG.exe
PID 1636 wrote to memory of 1764	1636	RFQ 17389 MPR 696.r02.exe	REG.exe
PID 1636 wrote to memory of 1764	1636	RFQ 17389 MPR 696.r02.exe	REG.exe
PID 1636 wrote to memory of 1764	1636	RFQ 17389 MPR 696.r02.exe	REG.exe

outlook_office_path 1 IoCs

Processes:

RFQ 17389 MPR 696.r02.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ 17389 MPR 696.r02.exe

outlook_win_path 1 IoCs

Processes:

RFQ 17389 MPR 696.r02.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ 17389 MPR 696.r02.exe

C:\Users\Admin\AppData\Local\Temp\RFQ 17389 MPR 696.r02.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ 17389 MPR 696.r02.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1856

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EaNkPCJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5F8F.tmp"
2⤵
- Creates scheduled task(s)
PID:1280

C:\Users\Admin\AppData\Local\Temp\RFQ 17389 MPR 696.r02.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1636

C:\Windows\SysWOW64\REG.exe
REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System / v DisableTaskMgr / t REG_DWORD / d 1 / f
3⤵
- Modifies registry key
PID:1764

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

2

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\tmp5F8F.tmp

Filesize
1KB

MD5
f0c525c5e888b86ebd187774259c9145

SHA1
639bccd05101da7898d47784ba73b75baf13b9f7

SHA256
c451d5833c6ed2a80856e4798622aba97f4d3704f593d40da4c6dd2d6f77c55a

SHA512
066854dcea71121ca97997352b30cac2869ee11839f5ee4e240b1307b9626061ddeec578e2577b4bb471a88d6261d995abff9501b429d5d56dc97210b4b97c5f

Download Submit
memory/1280-59-0x0000000000000000-mapping.dmp

Download
memory/1636-67-0x00000000004478DE-mapping.dmp

Download
memory/1636-66-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1636-71-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1636-69-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1636-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1636-62-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1636-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1636-65-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1764-73-0x0000000000000000-mapping.dmp

Download
memory/1856-55-0x0000000075CE1000-0x0000000075CE3000-memory.dmp

Filesize
8KB

Download
memory/1856-54-0x0000000000900000-0x0000000000990000-memory.dmp

Filesize
576KB

Download
memory/1856-57-0x0000000005010000-0x000000000506E000-memory.dmp

Filesize
376KB

Download
memory/1856-56-0x0000000000260000-0x0000000000270000-memory.dmp

Filesize
64KB

Download
memory/1856-58-0x0000000000750000-0x000000000079C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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