agenttesla | 0d2f730e4b147a8413e4d9c85a4d73533b170c307797c08dacfa16504976be19

General

Target

swift comfirmation.exe
Size

647KB
MD5

910bc85e248fa7e2794e3d2469d3b94d
SHA1

09e4a1102f7df7a21f22bfc02f9649918db1f60d
SHA256

205034fed0edd3c5d8069c63783b3cfdeba86816e6f1f5f6899add096d482bff
SHA512

45bec61009a8bb18b860ac3086e94c3794fe353c85180e38ccb86b81c9f05137afb9fad605ea4ecbf3f60b84f20e17d11cafb430a13cb4c4e34c648677924dac

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.uwcelectric.com
Port:
587
Username:
[email protected]
Password:
TYT#ikd1

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/1796-138-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

swift comfirmation.exe

description ioc process

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

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

swift comfirmation.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	swift comfirmation.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:

swift comfirmation.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	swift comfirmation.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	swift comfirmation.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	swift comfirmation.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

swift comfirmation.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WCPCe = "C:\\Users\\Admin\\AppData\\Roaming\\WCPCe\\WCPCe.exe"	swift comfirmation.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

swift comfirmation.exe

description pid process target process

PID 3316 set thread context of 1796 3316 swift comfirmation.exe swift comfirmation.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

2904 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

2320 REG.exe

description	pid	process	target process
PID 3316 set thread context of 1796	3316	swift comfirmation.exe	swift comfirmation.exe

pid	process
2904	schtasks.exe

pid	process
2320	REG.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

swift comfirmation.exeswift comfirmation.exe

pid	process
3316	swift comfirmation.exe
3316	swift comfirmation.exe
3316	swift comfirmation.exe
3316	swift comfirmation.exe
1796	swift comfirmation.exe
1796	swift comfirmation.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

swift comfirmation.exeswift comfirmation.exe

description pid process

Token: SeDebugPrivilege 3316 swift comfirmation.exe
Token: SeDebugPrivilege 1796 swift comfirmation.exe

description	pid	process
Token: SeDebugPrivilege	3316	swift comfirmation.exe
Token: SeDebugPrivilege	1796	swift comfirmation.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

swift comfirmation.exeswift comfirmation.exe

description	pid	process	target process
PID 3316 wrote to memory of 2904	3316	swift comfirmation.exe	schtasks.exe
PID 3316 wrote to memory of 2904	3316	swift comfirmation.exe	schtasks.exe
PID 3316 wrote to memory of 2904	3316	swift comfirmation.exe	schtasks.exe
PID 3316 wrote to memory of 1796	3316	swift comfirmation.exe	swift comfirmation.exe
PID 3316 wrote to memory of 1796	3316	swift comfirmation.exe	swift comfirmation.exe
PID 3316 wrote to memory of 1796	3316	swift comfirmation.exe	swift comfirmation.exe
PID 3316 wrote to memory of 1796	3316	swift comfirmation.exe	swift comfirmation.exe
PID 3316 wrote to memory of 1796	3316	swift comfirmation.exe	swift comfirmation.exe
PID 3316 wrote to memory of 1796	3316	swift comfirmation.exe	swift comfirmation.exe
PID 3316 wrote to memory of 1796	3316	swift comfirmation.exe	swift comfirmation.exe
PID 3316 wrote to memory of 1796	3316	swift comfirmation.exe	swift comfirmation.exe
PID 1796 wrote to memory of 2320	1796	swift comfirmation.exe	REG.exe
PID 1796 wrote to memory of 2320	1796	swift comfirmation.exe	REG.exe
PID 1796 wrote to memory of 2320	1796	swift comfirmation.exe	REG.exe

outlook_office_path 1 IoCs

Processes:

swift comfirmation.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	swift comfirmation.exe

outlook_win_path 1 IoCs

Processes:

swift comfirmation.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	swift comfirmation.exe

C:\Users\Admin\AppData\Local\Temp\swift comfirmation.exe
"C:\Users\Admin\AppData\Local\Temp\swift comfirmation.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3316

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IlwdaVdipIfsS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp88C7.tmp"
2⤵
- Creates scheduled task(s)
PID:2904

C:\Users\Admin\AppData\Local\Temp\swift comfirmation.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:1796

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:2320

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

Query Registry

1

T1012

System Information Discovery

2

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\tmp88C7.tmp

Filesize
1KB

MD5
cd5eff1c7a9792582083ed991ccc0ea5

SHA1
04b78f6bc80e7ac2db2444cebb438ed9b205c472

SHA256
1366fe3ee5a6ff8ea15235697292fa734e482c2dbeb7620b18d33813631c04fe

SHA512
e275567c687f3c9fbbcf190b606de7bb5862ad0aab4dc19ff6156e835acc122ad07a9de1c9aa741ec743192565e4af8f6d5bb2267b69830088f21f452d15160e

Download Submit
memory/1796-137-0x0000000000000000-mapping.dmp

Download
memory/1796-138-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/1796-139-0x0000000005F20000-0x0000000005F86000-memory.dmp

Filesize
408KB

Download
memory/1796-140-0x0000000006490000-0x00000000064E0000-memory.dmp

Filesize
320KB

Download
memory/2320-141-0x0000000000000000-mapping.dmp

Download
memory/2904-135-0x0000000000000000-mapping.dmp

Download
memory/3316-130-0x0000000000A10000-0x0000000000AB8000-memory.dmp

Filesize
672KB

Download
memory/3316-131-0x0000000005920000-0x0000000005EC4000-memory.dmp

Filesize
5.6MB

Download
memory/3316-132-0x0000000005450000-0x00000000054E2000-memory.dmp

Filesize
584KB

Download
memory/3316-133-0x0000000005600000-0x000000000560A000-memory.dmp

Filesize
40KB

Download
memory/3316-134-0x0000000009240000-0x00000000092DC000-memory.dmp

Filesize
624KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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